/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:14:13,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:14:13,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:14:13,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 16:14:13,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 16:14:13,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 16:14:13,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 16:14:13,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 16:14:13,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 16:14:13,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 16:14:13,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 16:14:13,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 16:14:13,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 16:14:13,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 16:14:13,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 16:14:13,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 16:14:13,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 16:14:13,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 16:14:13,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 16:14:13,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 16:14:13,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 16:14:13,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 16:14:13,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 16:14:13,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 16:14:13,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 16:14:13,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 16:14:13,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 16:14:13,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 16:14:13,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 16:14:13,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 16:14:13,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 16:14:13,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 16:14:13,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 16:14:13,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 16:14:13,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 16:14:13,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 16:14:13,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 16:14:13,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 16:14:13,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:14:13,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:14:13,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:14:13,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-09 16:14:13,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:14:13,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:14:13,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:14:13,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:14:13,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:14:13,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:14:13,988 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:14:13,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:14:13,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:14:13,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:14:13,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:14:13,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:14:13,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:14:13,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:14:13,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:14:13,989 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:14:13,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:14:13,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:14:13,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:14:13,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:14:13,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:14:13,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:14:13,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:14:13,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:14:13,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:14:13,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:14:13,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:14:13,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:14:13,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:14:13,992 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:14:13,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:14:13,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:14:14,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:14:14,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:14:14,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:14:14,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:14:14,343 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:14:14,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.i [2021-07-09 16:14:14,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937bf8a66/bbdda8f8f0264fcb895edf4847b367bc/FLAG05f5d4834 [2021-07-09 16:14:14,928 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:14:14,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i [2021-07-09 16:14:14,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937bf8a66/bbdda8f8f0264fcb895edf4847b367bc/FLAG05f5d4834 [2021-07-09 16:14:15,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937bf8a66/bbdda8f8f0264fcb895edf4847b367bc [2021-07-09 16:14:15,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:14:15,421 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:14:15,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:14:15,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:14:15,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:14:15,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:14:15" (1/1) ... [2021-07-09 16:14:15,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3865a4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:15, skipping insertion in model container [2021-07-09 16:14:15,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:14:15" (1/1) ... [2021-07-09 16:14:15,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:14:15,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:14:15,626 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 16:14:15,891 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2021-07-09 16:14:15,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:14:15,927 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:14:15,945 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-09 16:14:15,958 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.i[55547,55560] [2021-07-09 16:14:15,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:14:16,021 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:14:16,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16 WrapperNode [2021-07-09 16:14:16,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:14:16,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:14:16,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:14:16,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:14:16,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:14:16,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:14:16,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:14:16,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:14:16,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... [2021-07-09 16:14:16,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:14:16,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:14:16,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:14:16,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:14:16,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:14:16,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:14:16,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:14:16,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:14:16,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:14:16,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-09 16:14:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-07-09 16:14:16,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-07-09 16:14:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 16:14:16,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 16:14:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 16:14:16,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 16:14:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 16:14:16,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 16:14:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:14:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-09 16:14:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:14:16,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:14:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:14:16,174 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:14:16,646 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:14:16,646 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-09 16:14:16,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:14:16 BoogieIcfgContainer [2021-07-09 16:14:16,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:14:16,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:14:16,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:14:16,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:14:16,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:14:15" (1/3) ... [2021-07-09 16:14:16,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570acc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:14:16, skipping insertion in model container [2021-07-09 16:14:16,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:14:16" (2/3) ... [2021-07-09 16:14:16,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570acc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:14:16, skipping insertion in model container [2021-07-09 16:14:16,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:14:16" (3/3) ... [2021-07-09 16:14:16,654 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton.i [2021-07-09 16:14:16,662 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:14:16,662 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:14:16,662 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:14:16,663 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:14:16,731 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,731 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,731 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,732 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,732 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,732 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,732 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,733 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,733 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,733 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,733 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,733 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,733 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,734 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,734 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,734 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,734 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,734 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,735 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,735 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,735 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,735 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,736 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,736 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,736 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,737 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,737 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,737 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,737 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,737 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,737 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,737 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,738 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,738 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,738 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,738 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,738 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,738 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,739 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,740 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,740 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,740 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,740 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,741 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,741 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,741 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,741 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,741 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,741 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,742 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,743 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,743 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,743 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,743 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,743 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,744 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,744 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,744 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,744 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,744 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,745 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,745 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,745 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,745 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,745 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,745 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,746 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,746 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,746 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,746 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,746 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,746 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,746 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,747 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,748 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,749 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,750 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,751 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,751 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,752 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,757 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,757 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,757 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,757 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,757 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,757 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,757 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,760 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,761 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,761 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,761 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,761 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,761 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,761 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,761 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,762 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,762 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,762 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,762 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,763 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,764 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,765 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,766 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,769 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,770 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,771 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,771 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,771 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,772 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,773 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,774 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,777 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,782 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,782 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,782 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,783 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,783 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,783 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,784 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,784 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,784 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,784 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,784 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,792 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,792 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,792 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,793 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,797 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,798 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,798 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,798 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,800 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,801 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,801 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,801 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,801 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,801 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,801 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,801 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,802 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~pre7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,803 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,804 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,804 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,812 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,814 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,814 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,814 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,816 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,816 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,816 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,816 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,818 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,818 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:16,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:14:17,004 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-07-09 16:14:17,024 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-09 16:14:17,046 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:14:17,046 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:14:17,046 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:14:17,046 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:14:17,046 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:14:17,046 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:14:17,046 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:14:17,046 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:14:17,080 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 197 places, 278 transitions, 936 flow [2021-07-09 16:14:20,420 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70523 states, 70518 states have (on average 4.318698771944752) internal successors, (304546), 70522 states have internal predecessors, (304546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 70523 states, 70518 states have (on average 4.318698771944752) internal successors, (304546), 70522 states have internal predecessors, (304546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:20,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-09 16:14:20,675 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:20,676 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:20,676 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:20,700 INFO L82 PathProgramCache]: Analyzing trace with hash -811265628, now seen corresponding path program 1 times [2021-07-09 16:14:20,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:20,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020520921] [2021-07-09 16:14:20,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:21,458 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2021-07-09 16:14:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:21,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:21,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020520921] [2021-07-09 16:14:21,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020520921] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:21,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:21,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:14:21,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784546349] [2021-07-09 16:14:21,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:14:21,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:21,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:14:21,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:14:21,633 INFO L87 Difference]: Start difference. First operand has 70523 states, 70518 states have (on average 4.318698771944752) internal successors, (304546), 70522 states have internal predecessors, (304546), 0 states have call successors, (0), 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 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:23,772 INFO L93 Difference]: Finished difference Result 76003 states and 329087 transitions. [2021-07-09 16:14:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:14:23,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-09 16:14:23,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:24,487 INFO L225 Difference]: With dead ends: 76003 [2021-07-09 16:14:24,487 INFO L226 Difference]: Without dead ends: 54772 [2021-07-09 16:14:24,488 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 497.2ms TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:14:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54772 states. [2021-07-09 16:14:26,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54772 to 46283. [2021-07-09 16:14:26,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46283 states, 46280 states have (on average 4.362337942955921) internal successors, (201889), 46282 states have internal predecessors, (201889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:27,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46283 states to 46283 states and 201889 transitions. [2021-07-09 16:14:27,665 INFO L78 Accepts]: Start accepts. Automaton has 46283 states and 201889 transitions. Word has length 41 [2021-07-09 16:14:27,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:27,667 INFO L482 AbstractCegarLoop]: Abstraction has 46283 states and 201889 transitions. [2021-07-09 16:14:27,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:27,667 INFO L276 IsEmpty]: Start isEmpty. Operand 46283 states and 201889 transitions. [2021-07-09 16:14:27,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-09 16:14:27,674 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:27,674 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:27,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:14:27,675 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:27,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:27,681 INFO L82 PathProgramCache]: Analyzing trace with hash -589683484, now seen corresponding path program 2 times [2021-07-09 16:14:27,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:27,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827717578] [2021-07-09 16:14:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:28,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:28,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:28,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827717578] [2021-07-09 16:14:28,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827717578] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:28,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:28,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:14:28,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780392006] [2021-07-09 16:14:28,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:14:28,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:28,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:14:28,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:14:28,046 INFO L87 Difference]: Start difference. First operand 46283 states and 201889 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:29,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:29,855 INFO L93 Difference]: Finished difference Result 54799 states and 241924 transitions. [2021-07-09 16:14:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:14:29,856 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-09 16:14:29,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:30,272 INFO L225 Difference]: With dead ends: 54799 [2021-07-09 16:14:30,272 INFO L226 Difference]: Without dead ends: 54799 [2021-07-09 16:14:30,273 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 392.4ms TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:14:30,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54799 states. [2021-07-09 16:14:32,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54799 to 46286. [2021-07-09 16:14:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46286 states, 46283 states have (on average 4.362120000864248) internal successors, (201892), 46285 states have internal predecessors, (201892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46286 states to 46286 states and 201892 transitions. [2021-07-09 16:14:32,547 INFO L78 Accepts]: Start accepts. Automaton has 46286 states and 201892 transitions. Word has length 41 [2021-07-09 16:14:32,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:32,547 INFO L482 AbstractCegarLoop]: Abstraction has 46286 states and 201892 transitions. [2021-07-09 16:14:32,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:32,548 INFO L276 IsEmpty]: Start isEmpty. Operand 46286 states and 201892 transitions. [2021-07-09 16:14:32,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-09 16:14:32,549 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:32,549 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:32,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:14:32,549 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:32,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:32,550 INFO L82 PathProgramCache]: Analyzing trace with hash 325896192, now seen corresponding path program 3 times [2021-07-09 16:14:32,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:32,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382881703] [2021-07-09 16:14:32,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:32,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:32,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382881703] [2021-07-09 16:14:32,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382881703] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:32,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:32,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:14:32,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538611618] [2021-07-09 16:14:32,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:14:32,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:32,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:14:32,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:14:32,807 INFO L87 Difference]: Start difference. First operand 46286 states and 201892 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:34,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:34,166 INFO L93 Difference]: Finished difference Result 54743 states and 241824 transitions. [2021-07-09 16:14:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:14:34,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-09 16:14:34,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:34,635 INFO L225 Difference]: With dead ends: 54743 [2021-07-09 16:14:34,635 INFO L226 Difference]: Without dead ends: 54743 [2021-07-09 16:14:34,636 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 237.8ms TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:14:34,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54743 states. [2021-07-09 16:14:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54743 to 46227. [2021-07-09 16:14:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46227 states, 46225 states have (on average 4.365365062195782) internal successors, (201789), 46226 states have internal predecessors, (201789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46227 states to 46227 states and 201789 transitions. [2021-07-09 16:14:36,844 INFO L78 Accepts]: Start accepts. Automaton has 46227 states and 201789 transitions. Word has length 41 [2021-07-09 16:14:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:36,845 INFO L482 AbstractCegarLoop]: Abstraction has 46227 states and 201789 transitions. [2021-07-09 16:14:36,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 46227 states and 201789 transitions. [2021-07-09 16:14:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-07-09 16:14:36,850 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:36,851 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:36,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:14:36,851 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:36,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:36,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1046012557, now seen corresponding path program 1 times [2021-07-09 16:14:36,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:36,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080777901] [2021-07-09 16:14:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:37,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:37,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080777901] [2021-07-09 16:14:37,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080777901] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:37,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:37,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:14:37,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62491450] [2021-07-09 16:14:37,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:14:37,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:37,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:14:37,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:14:37,006 INFO L87 Difference]: Start difference. First operand 46227 states and 201789 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:38,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:38,278 INFO L93 Difference]: Finished difference Result 96773 states and 411557 transitions. [2021-07-09 16:14:38,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:14:38,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-07-09 16:14:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:39,228 INFO L225 Difference]: With dead ends: 96773 [2021-07-09 16:14:39,229 INFO L226 Difference]: Without dead ends: 61407 [2021-07-09 16:14:39,229 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 48.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:14:39,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61407 states. [2021-07-09 16:14:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61407 to 49089. [2021-07-09 16:14:41,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49089 states, 49087 states have (on average 4.207203536577913) internal successors, (206519), 49088 states have internal predecessors, (206519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:41,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49089 states to 49089 states and 206519 transitions. [2021-07-09 16:14:41,388 INFO L78 Accepts]: Start accepts. Automaton has 49089 states and 206519 transitions. Word has length 54 [2021-07-09 16:14:41,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:41,388 INFO L482 AbstractCegarLoop]: Abstraction has 49089 states and 206519 transitions. [2021-07-09 16:14:41,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:41,389 INFO L276 IsEmpty]: Start isEmpty. Operand 49089 states and 206519 transitions. [2021-07-09 16:14:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-09 16:14:41,397 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:41,398 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:41,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:14:41,398 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:41,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:41,399 INFO L82 PathProgramCache]: Analyzing trace with hash -246346948, now seen corresponding path program 1 times [2021-07-09 16:14:41,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:41,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060542967] [2021-07-09 16:14:41,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:41,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:41,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060542967] [2021-07-09 16:14:41,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060542967] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:41,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:41,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:14:41,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942662917] [2021-07-09 16:14:41,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:14:41,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:41,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:14:41,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:14:41,503 INFO L87 Difference]: Start difference. First operand 49089 states and 206519 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:42,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:42,666 INFO L93 Difference]: Finished difference Result 67425 states and 276590 transitions. [2021-07-09 16:14:42,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:14:42,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-07-09 16:14:42,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:43,396 INFO L225 Difference]: With dead ends: 67425 [2021-07-09 16:14:43,397 INFO L226 Difference]: Without dead ends: 61341 [2021-07-09 16:14:43,398 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:14:43,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61341 states. [2021-07-09 16:14:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61341 to 48869. [2021-07-09 16:14:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48869 states, 48867 states have (on average 4.211697055272475) internal successors, (205813), 48868 states have internal predecessors, (205813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48869 states to 48869 states and 205813 transitions. [2021-07-09 16:14:45,484 INFO L78 Accepts]: Start accepts. Automaton has 48869 states and 205813 transitions. Word has length 59 [2021-07-09 16:14:45,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:45,485 INFO L482 AbstractCegarLoop]: Abstraction has 48869 states and 205813 transitions. [2021-07-09 16:14:45,485 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 48869 states and 205813 transitions. [2021-07-09 16:14:45,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:14:45,494 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:45,494 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:45,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:14:45,494 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:45,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1864004856, now seen corresponding path program 1 times [2021-07-09 16:14:45,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:45,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502993512] [2021-07-09 16:14:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:46,137 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2021-07-09 16:14:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:46,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:46,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502993512] [2021-07-09 16:14:46,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502993512] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:46,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:46,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:14:46,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94978342] [2021-07-09 16:14:46,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:14:46,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:46,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:14:46,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:14:46,479 INFO L87 Difference]: Start difference. First operand 48869 states and 205813 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:48,644 INFO L93 Difference]: Finished difference Result 57826 states and 244284 transitions. [2021-07-09 16:14:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:14:48,645 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:14:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:49,135 INFO L225 Difference]: With dead ends: 57826 [2021-07-09 16:14:49,135 INFO L226 Difference]: Without dead ends: 57556 [2021-07-09 16:14:49,142 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1316.3ms TimeCoverageRelationStatistics Valid=174, Invalid=1158, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:14:49,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57556 states. [2021-07-09 16:14:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57556 to 54249. [2021-07-09 16:14:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54249 states, 54247 states have (on average 4.2520139362545395) internal successors, (230659), 54248 states have internal predecessors, (230659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54249 states to 54249 states and 230659 transitions. [2021-07-09 16:14:51,151 INFO L78 Accepts]: Start accepts. Automaton has 54249 states and 230659 transitions. Word has length 60 [2021-07-09 16:14:51,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:51,152 INFO L482 AbstractCegarLoop]: Abstraction has 54249 states and 230659 transitions. [2021-07-09 16:14:51,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 54249 states and 230659 transitions. [2021-07-09 16:14:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:14:51,164 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:51,165 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:51,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:14:51,165 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:51,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1211952212, now seen corresponding path program 2 times [2021-07-09 16:14:51,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:51,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297284810] [2021-07-09 16:14:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:51,586 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:51,586 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297284810] [2021-07-09 16:14:51,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297284810] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:51,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:51,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:14:51,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119491292] [2021-07-09 16:14:51,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:14:51,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:51,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:14:51,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:14:51,589 INFO L87 Difference]: Start difference. First operand 54249 states and 230659 transitions. Second operand has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:53,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:53,674 INFO L93 Difference]: Finished difference Result 63300 states and 269393 transitions. [2021-07-09 16:14:53,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:14:53,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:14:53,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:54,004 INFO L225 Difference]: With dead ends: 63300 [2021-07-09 16:14:54,004 INFO L226 Difference]: Without dead ends: 63030 [2021-07-09 16:14:54,004 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1029.3ms TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:14:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63030 states. [2021-07-09 16:14:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63030 to 54264. [2021-07-09 16:14:55,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54264 states, 54262 states have (on average 4.2514466846043275) internal successors, (230692), 54263 states have internal predecessors, (230692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54264 states to 54264 states and 230692 transitions. [2021-07-09 16:14:56,457 INFO L78 Accepts]: Start accepts. Automaton has 54264 states and 230692 transitions. Word has length 60 [2021-07-09 16:14:56,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:14:56,457 INFO L482 AbstractCegarLoop]: Abstraction has 54264 states and 230692 transitions. [2021-07-09 16:14:56,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 17 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:56,458 INFO L276 IsEmpty]: Start isEmpty. Operand 54264 states and 230692 transitions. [2021-07-09 16:14:56,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:14:56,471 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:14:56,471 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:14:56,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:14:56,472 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:14:56,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:14:56,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1520073798, now seen corresponding path program 3 times [2021-07-09 16:14:56,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:14:56,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265003590] [2021-07-09 16:14:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:14:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:14:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:14:56,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:14:56,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265003590] [2021-07-09 16:14:56,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265003590] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:14:56,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:14:56,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:14:56,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331481650] [2021-07-09 16:14:56,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:14:56,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:14:56,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:14:56,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:14:56,828 INFO L87 Difference]: Start difference. First operand 54264 states and 230692 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:14:58,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:14:58,479 INFO L93 Difference]: Finished difference Result 63260 states and 269245 transitions. [2021-07-09 16:14:58,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:14:58,479 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:14:58,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:14:59,230 INFO L225 Difference]: With dead ends: 63260 [2021-07-09 16:14:59,230 INFO L226 Difference]: Without dead ends: 62990 [2021-07-09 16:14:59,230 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 535.2ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:14:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62990 states. [2021-07-09 16:15:01,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62990 to 54281. [2021-07-09 16:15:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54281 states, 54279 states have (on average 4.250759962416404) internal successors, (230727), 54280 states have internal predecessors, (230727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54281 states to 54281 states and 230727 transitions. [2021-07-09 16:15:01,425 INFO L78 Accepts]: Start accepts. Automaton has 54281 states and 230727 transitions. Word has length 60 [2021-07-09 16:15:01,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:01,425 INFO L482 AbstractCegarLoop]: Abstraction has 54281 states and 230727 transitions. [2021-07-09 16:15:01,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 54281 states and 230727 transitions. [2021-07-09 16:15:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:15:01,435 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:01,435 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:01,435 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:15:01,436 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash -181639794, now seen corresponding path program 4 times [2021-07-09 16:15:01,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:01,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964707984] [2021-07-09 16:15:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:01,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:01,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964707984] [2021-07-09 16:15:01,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964707984] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:01,761 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:01,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-07-09 16:15:01,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824019720] [2021-07-09 16:15:01,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 16:15:01,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:01,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 16:15:01,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:15:01,762 INFO L87 Difference]: Start difference. First operand 54281 states and 230727 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:03,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:03,566 INFO L93 Difference]: Finished difference Result 63305 states and 269323 transitions. [2021-07-09 16:15:03,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:15:03,567 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:15:03,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:04,165 INFO L225 Difference]: With dead ends: 63305 [2021-07-09 16:15:04,165 INFO L226 Difference]: Without dead ends: 63035 [2021-07-09 16:15:04,165 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 435.4ms TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:15:04,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63035 states. [2021-07-09 16:15:06,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63035 to 54310. [2021-07-09 16:15:06,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54310 states, 54308 states have (on average 4.249318700743905) internal successors, (230772), 54309 states have internal predecessors, (230772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:07,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54310 states to 54310 states and 230772 transitions. [2021-07-09 16:15:07,062 INFO L78 Accepts]: Start accepts. Automaton has 54310 states and 230772 transitions. Word has length 60 [2021-07-09 16:15:07,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:07,062 INFO L482 AbstractCegarLoop]: Abstraction has 54310 states and 230772 transitions. [2021-07-09 16:15:07,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:07,063 INFO L276 IsEmpty]: Start isEmpty. Operand 54310 states and 230772 transitions. [2021-07-09 16:15:07,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:15:07,093 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:07,093 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:07,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:15:07,094 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:07,095 INFO L82 PathProgramCache]: Analyzing trace with hash -994232682, now seen corresponding path program 5 times [2021-07-09 16:15:07,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:07,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669500627] [2021-07-09 16:15:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:07,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:07,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669500627] [2021-07-09 16:15:07,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669500627] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:07,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:07,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:15:07,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180290701] [2021-07-09 16:15:07,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:15:07,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:07,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:15:07,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:15:07,443 INFO L87 Difference]: Start difference. First operand 54310 states and 230772 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:08,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:08,801 INFO L93 Difference]: Finished difference Result 63086 states and 268677 transitions. [2021-07-09 16:15:08,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:15:08,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:15:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:09,163 INFO L225 Difference]: With dead ends: 63086 [2021-07-09 16:15:09,163 INFO L226 Difference]: Without dead ends: 62816 [2021-07-09 16:15:09,164 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 302.7ms TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:15:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62816 states. [2021-07-09 16:15:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62816 to 54062. [2021-07-09 16:15:10,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54062 states, 54060 states have (on average 4.256030336662967) internal successors, (230081), 54061 states have internal predecessors, (230081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54062 states to 54062 states and 230081 transitions. [2021-07-09 16:15:11,592 INFO L78 Accepts]: Start accepts. Automaton has 54062 states and 230081 transitions. Word has length 60 [2021-07-09 16:15:11,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:11,593 INFO L482 AbstractCegarLoop]: Abstraction has 54062 states and 230081 transitions. [2021-07-09 16:15:11,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:11,593 INFO L276 IsEmpty]: Start isEmpty. Operand 54062 states and 230081 transitions. [2021-07-09 16:15:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:15:11,625 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:11,626 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:11,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:15:11,626 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:11,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:11,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1981736042, now seen corresponding path program 1 times [2021-07-09 16:15:11,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:11,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55685665] [2021-07-09 16:15:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:11,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:11,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55685665] [2021-07-09 16:15:11,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55685665] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:11,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:11,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-07-09 16:15:11,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674884607] [2021-07-09 16:15:11,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-09 16:15:11,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:11,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-09 16:15:11,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-07-09 16:15:11,975 INFO L87 Difference]: Start difference. First operand 54062 states and 230081 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:13,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:13,538 INFO L93 Difference]: Finished difference Result 61819 states and 261592 transitions. [2021-07-09 16:15:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:15:13,539 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 16:15:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:13,869 INFO L225 Difference]: With dead ends: 61819 [2021-07-09 16:15:13,869 INFO L226 Difference]: Without dead ends: 61477 [2021-07-09 16:15:13,870 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 539.9ms TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2021-07-09 16:15:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61477 states. [2021-07-09 16:15:15,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61477 to 57966. [2021-07-09 16:15:15,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57966 states, 57964 states have (on average 4.260696294251605) internal successors, (246967), 57965 states have internal predecessors, (246967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57966 states to 57966 states and 246967 transitions. [2021-07-09 16:15:16,461 INFO L78 Accepts]: Start accepts. Automaton has 57966 states and 246967 transitions. Word has length 62 [2021-07-09 16:15:16,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:16,461 INFO L482 AbstractCegarLoop]: Abstraction has 57966 states and 246967 transitions. [2021-07-09 16:15:16,461 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 57966 states and 246967 transitions. [2021-07-09 16:15:16,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:15:16,480 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:16,480 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:16,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:15:16,480 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:16,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:16,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1061178024, now seen corresponding path program 2 times [2021-07-09 16:15:16,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:16,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821997281] [2021-07-09 16:15:16,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:16,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:16,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821997281] [2021-07-09 16:15:16,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821997281] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:16,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:16,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:15:16,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528636149] [2021-07-09 16:15:16,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:15:16,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:16,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:15:16,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:15:16,992 INFO L87 Difference]: Start difference. First operand 57966 states and 246967 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:19,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:19,249 INFO L93 Difference]: Finished difference Result 68527 states and 290991 transitions. [2021-07-09 16:15:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:15:19,249 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 16:15:19,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:19,653 INFO L225 Difference]: With dead ends: 68527 [2021-07-09 16:15:19,653 INFO L226 Difference]: Without dead ends: 68185 [2021-07-09 16:15:19,653 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 950.5ms TimeCoverageRelationStatistics Valid=176, Invalid=1014, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:15:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68185 states. [2021-07-09 16:15:21,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68185 to 60588. [2021-07-09 16:15:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60588 states, 60586 states have (on average 4.283184233981448) internal successors, (259501), 60587 states have internal predecessors, (259501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60588 states to 60588 states and 259501 transitions. [2021-07-09 16:15:22,360 INFO L78 Accepts]: Start accepts. Automaton has 60588 states and 259501 transitions. Word has length 62 [2021-07-09 16:15:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:22,360 INFO L482 AbstractCegarLoop]: Abstraction has 60588 states and 259501 transitions. [2021-07-09 16:15:22,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:22,361 INFO L276 IsEmpty]: Start isEmpty. Operand 60588 states and 259501 transitions. [2021-07-09 16:15:22,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:15:22,384 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:22,384 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:22,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:15:22,385 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:22,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:22,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1539655885, now seen corresponding path program 1 times [2021-07-09 16:15:22,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:22,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331050991] [2021-07-09 16:15:22,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:23,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:23,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331050991] [2021-07-09 16:15:23,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331050991] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:23,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:23,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:15:23,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202037149] [2021-07-09 16:15:23,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:15:23,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:23,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:15:23,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:15:23,006 INFO L87 Difference]: Start difference. First operand 60588 states and 259501 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:23,534 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-07-09 16:15:25,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:25,287 INFO L93 Difference]: Finished difference Result 71101 states and 302938 transitions. [2021-07-09 16:15:25,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:15:25,288 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 16:15:25,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:25,664 INFO L225 Difference]: With dead ends: 71101 [2021-07-09 16:15:25,664 INFO L226 Difference]: Without dead ends: 70759 [2021-07-09 16:15:25,665 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1250.0ms TimeCoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 16:15:26,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70759 states. [2021-07-09 16:15:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70759 to 60588. [2021-07-09 16:15:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60588 states, 60586 states have (on average 4.283184233981448) internal successors, (259501), 60587 states have internal predecessors, (259501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:28,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60588 states to 60588 states and 259501 transitions. [2021-07-09 16:15:28,269 INFO L78 Accepts]: Start accepts. Automaton has 60588 states and 259501 transitions. Word has length 62 [2021-07-09 16:15:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:28,269 INFO L482 AbstractCegarLoop]: Abstraction has 60588 states and 259501 transitions. [2021-07-09 16:15:28,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 20 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:28,269 INFO L276 IsEmpty]: Start isEmpty. Operand 60588 states and 259501 transitions. [2021-07-09 16:15:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:15:28,286 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:28,286 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:28,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-09 16:15:28,286 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:28,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:28,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2029423109, now seen corresponding path program 2 times [2021-07-09 16:15:28,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:28,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355616556] [2021-07-09 16:15:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:28,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:28,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355616556] [2021-07-09 16:15:28,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355616556] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:28,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:28,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:15:28,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867019085] [2021-07-09 16:15:28,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:15:28,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:28,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:15:28,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:15:28,706 INFO L87 Difference]: Start difference. First operand 60588 states and 259501 transitions. Second operand has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:29,105 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-07-09 16:15:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:30,777 INFO L93 Difference]: Finished difference Result 73658 states and 314685 transitions. [2021-07-09 16:15:30,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:15:30,777 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 16:15:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:31,148 INFO L225 Difference]: With dead ends: 73658 [2021-07-09 16:15:31,149 INFO L226 Difference]: Without dead ends: 73316 [2021-07-09 16:15:31,149 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 962.3ms TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:15:31,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73316 states. [2021-07-09 16:15:33,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73316 to 57618. [2021-07-09 16:15:33,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57618 states, 57616 states have (on average 4.267998472646487) internal successors, (245905), 57617 states have internal predecessors, (245905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57618 states to 57618 states and 245905 transitions. [2021-07-09 16:15:33,814 INFO L78 Accepts]: Start accepts. Automaton has 57618 states and 245905 transitions. Word has length 62 [2021-07-09 16:15:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:33,814 INFO L482 AbstractCegarLoop]: Abstraction has 57618 states and 245905 transitions. [2021-07-09 16:15:33,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 57618 states and 245905 transitions. [2021-07-09 16:15:33,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:15:33,831 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:33,831 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:33,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-09 16:15:33,832 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:33,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:33,832 INFO L82 PathProgramCache]: Analyzing trace with hash -708279666, now seen corresponding path program 3 times [2021-07-09 16:15:33,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:33,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756772686] [2021-07-09 16:15:33,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:34,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:34,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756772686] [2021-07-09 16:15:34,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756772686] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:34,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:34,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 16:15:34,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140208871] [2021-07-09 16:15:34,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 16:15:34,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:34,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 16:15:34,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:15:34,116 INFO L87 Difference]: Start difference. First operand 57618 states and 245905 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:34,871 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-07-09 16:15:35,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:35,542 INFO L93 Difference]: Finished difference Result 65384 states and 277429 transitions. [2021-07-09 16:15:35,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 16:15:35,543 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 16:15:35,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:36,189 INFO L225 Difference]: With dead ends: 65384 [2021-07-09 16:15:36,190 INFO L226 Difference]: Without dead ends: 65042 [2021-07-09 16:15:36,190 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 765.3ms TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:15:36,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65042 states. [2021-07-09 16:15:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65042 to 57621. [2021-07-09 16:15:38,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57621 states, 57619 states have (on average 4.267828320519273) internal successors, (245908), 57620 states have internal predecessors, (245908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57621 states to 57621 states and 245908 transitions. [2021-07-09 16:15:38,796 INFO L78 Accepts]: Start accepts. Automaton has 57621 states and 245908 transitions. Word has length 62 [2021-07-09 16:15:38,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:38,796 INFO L482 AbstractCegarLoop]: Abstraction has 57621 states and 245908 transitions. [2021-07-09 16:15:38,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 57621 states and 245908 transitions. [2021-07-09 16:15:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:15:38,817 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:38,818 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:38,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-09 16:15:38,819 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:38,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1418123072, now seen corresponding path program 4 times [2021-07-09 16:15:38,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:38,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536699264] [2021-07-09 16:15:38,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:39,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:39,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536699264] [2021-07-09 16:15:39,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536699264] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:39,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:39,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:15:39,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123612830] [2021-07-09 16:15:39,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:15:39,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:39,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:15:39,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:15:39,195 INFO L87 Difference]: Start difference. First operand 57621 states and 245908 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:41,363 INFO L93 Difference]: Finished difference Result 65409 states and 277466 transitions. [2021-07-09 16:15:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 16:15:41,364 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 16:15:41,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:41,835 INFO L225 Difference]: With dead ends: 65409 [2021-07-09 16:15:41,836 INFO L226 Difference]: Without dead ends: 65067 [2021-07-09 16:15:41,836 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 431.1ms TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:15:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65067 states. [2021-07-09 16:15:43,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65067 to 57649. [2021-07-09 16:15:43,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57649 states, 57647 states have (on average 4.266518639304734) internal successors, (245952), 57648 states have internal predecessors, (245952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57649 states to 57649 states and 245952 transitions. [2021-07-09 16:15:44,070 INFO L78 Accepts]: Start accepts. Automaton has 57649 states and 245952 transitions. Word has length 62 [2021-07-09 16:15:44,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:44,070 INFO L482 AbstractCegarLoop]: Abstraction has 57649 states and 245952 transitions. [2021-07-09 16:15:44,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 57649 states and 245952 transitions. [2021-07-09 16:15:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 16:15:44,088 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:44,088 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:44,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-09 16:15:44,088 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:44,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:44,089 INFO L82 PathProgramCache]: Analyzing trace with hash 670055796, now seen corresponding path program 5 times [2021-07-09 16:15:44,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:44,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470148407] [2021-07-09 16:15:44,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:44,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:44,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470148407] [2021-07-09 16:15:44,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470148407] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:44,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:44,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 16:15:44,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690592768] [2021-07-09 16:15:44,733 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 16:15:44,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:44,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 16:15:44,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-07-09 16:15:44,734 INFO L87 Difference]: Start difference. First operand 57649 states and 245952 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:46,050 INFO L93 Difference]: Finished difference Result 60948 states and 256662 transitions. [2021-07-09 16:15:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:15:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 16:15:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:46,419 INFO L225 Difference]: With dead ends: 60948 [2021-07-09 16:15:46,419 INFO L226 Difference]: Without dead ends: 60606 [2021-07-09 16:15:46,419 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 281.3ms TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:15:46,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60606 states. [2021-07-09 16:15:48,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60606 to 53160. [2021-07-09 16:15:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53160 states, 53158 states have (on average 4.234621317581549) internal successors, (225104), 53159 states have internal predecessors, (225104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53160 states to 53160 states and 225104 transitions. [2021-07-09 16:15:48,497 INFO L78 Accepts]: Start accepts. Automaton has 53160 states and 225104 transitions. Word has length 62 [2021-07-09 16:15:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:48,497 INFO L482 AbstractCegarLoop]: Abstraction has 53160 states and 225104 transitions. [2021-07-09 16:15:48,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 53160 states and 225104 transitions. [2021-07-09 16:15:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-09 16:15:48,520 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:48,520 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:48,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-09 16:15:48,520 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:48,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1271581389, now seen corresponding path program 1 times [2021-07-09 16:15:48,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:48,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180995444] [2021-07-09 16:15:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:49,197 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-07-09 16:15:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:49,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:49,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180995444] [2021-07-09 16:15:49,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180995444] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:49,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:49,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:15:49,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042405774] [2021-07-09 16:15:49,480 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:15:49,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:49,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:15:49,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:15:49,481 INFO L87 Difference]: Start difference. First operand 53160 states and 225104 transitions. Second operand has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:51,386 INFO L93 Difference]: Finished difference Result 64389 states and 274500 transitions. [2021-07-09 16:15:51,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:15:51,386 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-07-09 16:15:51,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:51,694 INFO L225 Difference]: With dead ends: 64389 [2021-07-09 16:15:51,694 INFO L226 Difference]: Without dead ends: 64119 [2021-07-09 16:15:51,695 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1052.6ms TimeCoverageRelationStatistics Valid=203, Invalid=1357, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:15:52,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64119 states. [2021-07-09 16:15:53,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64119 to 54940. [2021-07-09 16:15:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54940 states, 54938 states have (on average 4.293439877680294) internal successors, (235873), 54939 states have internal predecessors, (235873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54940 states to 54940 states and 235873 transitions. [2021-07-09 16:15:54,088 INFO L78 Accepts]: Start accepts. Automaton has 54940 states and 235873 transitions. Word has length 65 [2021-07-09 16:15:54,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:54,088 INFO L482 AbstractCegarLoop]: Abstraction has 54940 states and 235873 transitions. [2021-07-09 16:15:54,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:54,088 INFO L276 IsEmpty]: Start isEmpty. Operand 54940 states and 235873 transitions. [2021-07-09 16:15:54,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-09 16:15:54,111 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:54,111 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:54,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-09 16:15:54,111 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:54,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:54,111 INFO L82 PathProgramCache]: Analyzing trace with hash -378444152, now seen corresponding path program 1 times [2021-07-09 16:15:54,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:54,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021931110] [2021-07-09 16:15:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:54,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:54,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021931110] [2021-07-09 16:15:54,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021931110] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:54,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:54,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:15:54,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291545280] [2021-07-09 16:15:54,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:15:54,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:54,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:15:54,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:15:54,186 INFO L87 Difference]: Start difference. First operand 54940 states and 235873 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:55,480 INFO L93 Difference]: Finished difference Result 74107 states and 309485 transitions. [2021-07-09 16:15:55,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:15:55,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-07-09 16:15:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:15:56,147 INFO L225 Difference]: With dead ends: 74107 [2021-07-09 16:15:56,148 INFO L226 Difference]: Without dead ends: 67995 [2021-07-09 16:15:56,148 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:15:56,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67995 states. [2021-07-09 16:15:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67995 to 55174. [2021-07-09 16:15:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55174 states, 55172 states have (on average 4.289802798520989) internal successors, (236677), 55173 states have internal predecessors, (236677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55174 states to 55174 states and 236677 transitions. [2021-07-09 16:15:58,316 INFO L78 Accepts]: Start accepts. Automaton has 55174 states and 236677 transitions. Word has length 65 [2021-07-09 16:15:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:15:58,316 INFO L482 AbstractCegarLoop]: Abstraction has 55174 states and 236677 transitions. [2021-07-09 16:15:58,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:58,316 INFO L276 IsEmpty]: Start isEmpty. Operand 55174 states and 236677 transitions. [2021-07-09 16:15:58,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-09 16:15:58,345 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:15:58,345 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:15:58,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-09 16:15:58,345 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:15:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:15:58,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1113211634, now seen corresponding path program 2 times [2021-07-09 16:15:58,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:15:58,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677332456] [2021-07-09 16:15:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:15:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:15:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:15:58,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:15:58,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677332456] [2021-07-09 16:15:58,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677332456] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:15:58,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:15:58,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:15:58,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976015798] [2021-07-09 16:15:58,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:15:58,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:15:58,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:15:58,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:15:58,465 INFO L87 Difference]: Start difference. First operand 55174 states and 236677 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:15:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:15:59,747 INFO L93 Difference]: Finished difference Result 72794 states and 304360 transitions. [2021-07-09 16:15:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:15:59,747 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-07-09 16:15:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:00,413 INFO L225 Difference]: With dead ends: 72794 [2021-07-09 16:16:00,414 INFO L226 Difference]: Without dead ends: 66814 [2021-07-09 16:16:00,414 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 224.9ms TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:16:00,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66814 states. [2021-07-09 16:16:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66814 to 54455. [2021-07-09 16:16:02,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54455 states, 54453 states have (on average 4.294363946889979) internal successors, (233841), 54454 states have internal predecessors, (233841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54455 states to 54455 states and 233841 transitions. [2021-07-09 16:16:02,638 INFO L78 Accepts]: Start accepts. Automaton has 54455 states and 233841 transitions. Word has length 65 [2021-07-09 16:16:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:02,638 INFO L482 AbstractCegarLoop]: Abstraction has 54455 states and 233841 transitions. [2021-07-09 16:16:02,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 54455 states and 233841 transitions. [2021-07-09 16:16:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 16:16:02,677 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:02,677 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:02,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-09 16:16:02,677 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:02,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1543995883, now seen corresponding path program 1 times [2021-07-09 16:16:02,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:02,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791252606] [2021-07-09 16:16:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:03,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:03,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791252606] [2021-07-09 16:16:03,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791252606] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:03,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:03,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:16:03,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440127481] [2021-07-09 16:16:03,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:16:03,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:03,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:16:03,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:16:03,452 INFO L87 Difference]: Start difference. First operand 54455 states and 233841 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:05,134 INFO L93 Difference]: Finished difference Result 65398 states and 279354 transitions. [2021-07-09 16:16:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:16:05,134 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-09 16:16:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:05,460 INFO L225 Difference]: With dead ends: 65398 [2021-07-09 16:16:05,461 INFO L226 Difference]: Without dead ends: 65056 [2021-07-09 16:16:05,461 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1074.3ms TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:16:06,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65056 states. [2021-07-09 16:16:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65056 to 54003. [2021-07-09 16:16:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54003 states, 54001 states have (on average 4.290235366011741) internal successors, (231677), 54002 states have internal predecessors, (231677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:08,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54003 states to 54003 states and 231677 transitions. [2021-07-09 16:16:08,151 INFO L78 Accepts]: Start accepts. Automaton has 54003 states and 231677 transitions. Word has length 67 [2021-07-09 16:16:08,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:08,151 INFO L482 AbstractCegarLoop]: Abstraction has 54003 states and 231677 transitions. [2021-07-09 16:16:08,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:08,151 INFO L276 IsEmpty]: Start isEmpty. Operand 54003 states and 231677 transitions. [2021-07-09 16:16:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-07-09 16:16:08,265 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:08,265 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:08,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-09 16:16:08,265 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:08,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:08,266 INFO L82 PathProgramCache]: Analyzing trace with hash 623437865, now seen corresponding path program 2 times [2021-07-09 16:16:08,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:08,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445499035] [2021-07-09 16:16:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:09,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:09,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445499035] [2021-07-09 16:16:09,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445499035] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:09,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:09,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:16:09,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167067351] [2021-07-09 16:16:09,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:16:09,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:09,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:16:09,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:16:09,001 INFO L87 Difference]: Start difference. First operand 54003 states and 231677 transitions. Second operand has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:11,350 INFO L93 Difference]: Finished difference Result 60504 states and 257055 transitions. [2021-07-09 16:16:11,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:16:11,350 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-07-09 16:16:11,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:11,907 INFO L225 Difference]: With dead ends: 60504 [2021-07-09 16:16:11,907 INFO L226 Difference]: Without dead ends: 60162 [2021-07-09 16:16:11,908 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1320.9ms TimeCoverageRelationStatistics Valid=214, Invalid=1268, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 16:16:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60162 states. [2021-07-09 16:16:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60162 to 49129. [2021-07-09 16:16:13,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49129 states, 49127 states have (on average 4.269749832067905) internal successors, (209760), 49128 states have internal predecessors, (209760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:13,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49129 states to 49129 states and 209760 transitions. [2021-07-09 16:16:13,903 INFO L78 Accepts]: Start accepts. Automaton has 49129 states and 209760 transitions. Word has length 67 [2021-07-09 16:16:13,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:13,904 INFO L482 AbstractCegarLoop]: Abstraction has 49129 states and 209760 transitions. [2021-07-09 16:16:13,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:13,904 INFO L276 IsEmpty]: Start isEmpty. Operand 49129 states and 209760 transitions. [2021-07-09 16:16:13,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:13,938 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:13,938 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:13,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-09 16:16:13,939 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:13,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:13,939 INFO L82 PathProgramCache]: Analyzing trace with hash 2146199461, now seen corresponding path program 1 times [2021-07-09 16:16:13,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:13,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924209160] [2021-07-09 16:16:13,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:14,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:14,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924209160] [2021-07-09 16:16:14,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924209160] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:14,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:14,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:16:14,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231229642] [2021-07-09 16:16:14,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:16:14,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:14,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:16:14,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:16:14,330 INFO L87 Difference]: Start difference. First operand 49129 states and 209760 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-09 16:16:16,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:16,305 INFO L93 Difference]: Finished difference Result 55203 states and 232776 transitions. [2021-07-09 16:16:16,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:16:16,305 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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 [2021-07-09 16:16:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:16,576 INFO L225 Difference]: With dead ends: 55203 [2021-07-09 16:16:16,576 INFO L226 Difference]: Without dead ends: 53874 [2021-07-09 16:16:16,576 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 698.5ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:16:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53874 states. [2021-07-09 16:16:18,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53874 to 51756. [2021-07-09 16:16:18,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:18,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-09 16:16:18,587 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-09 16:16:18,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:18,587 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-09 16:16:18,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-09 16:16:18,587 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-09 16:16:18,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:18,630 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:18,631 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:18,631 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-09 16:16:18,631 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:18,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1440294437, now seen corresponding path program 2 times [2021-07-09 16:16:18,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:18,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532787248] [2021-07-09 16:16:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:19,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:19,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532787248] [2021-07-09 16:16:19,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532787248] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:19,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:19,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:16:19,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073293055] [2021-07-09 16:16:19,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:16:19,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:19,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:16:19,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:16:19,079 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-09 16:16:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:21,036 INFO L93 Difference]: Finished difference Result 57720 states and 243136 transitions. [2021-07-09 16:16:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:16:21,036 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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 [2021-07-09 16:16:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:21,342 INFO L225 Difference]: With dead ends: 57720 [2021-07-09 16:16:21,343 INFO L226 Difference]: Without dead ends: 56436 [2021-07-09 16:16:21,343 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 964.3ms TimeCoverageRelationStatistics Valid=151, Invalid=971, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 16:16:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56436 states. [2021-07-09 16:16:22,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56436 to 51756. [2021-07-09 16:16:23,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-09 16:16:23,266 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-09 16:16:23,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:23,266 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-09 16:16:23,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-09 16:16:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-09 16:16:23,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:23,303 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:23,303 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:23,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-09 16:16:23,303 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:23,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:23,303 INFO L82 PathProgramCache]: Analyzing trace with hash 845570371, now seen corresponding path program 3 times [2021-07-09 16:16:23,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:23,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989899446] [2021-07-09 16:16:23,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:24,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:24,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989899446] [2021-07-09 16:16:24,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989899446] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:24,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:24,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:16:24,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14478710] [2021-07-09 16:16:24,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:16:24,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:24,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:16:24,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:16:24,180 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-09 16:16:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:25,909 INFO L93 Difference]: Finished difference Result 60677 states and 255133 transitions. [2021-07-09 16:16:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:16:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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 [2021-07-09 16:16:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:26,196 INFO L225 Difference]: With dead ends: 60677 [2021-07-09 16:16:26,196 INFO L226 Difference]: Without dead ends: 59423 [2021-07-09 16:16:26,197 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 818.8ms TimeCoverageRelationStatistics Valid=190, Invalid=1216, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:16:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59423 states. [2021-07-09 16:16:27,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59423 to 51756. [2021-07-09 16:16:27,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:28,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-09 16:16:28,525 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-09 16:16:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:28,525 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-09 16:16:28,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-09 16:16:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-09 16:16:28,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:28,572 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:28,572 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:28,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-09 16:16:28,572 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:28,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:28,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1216348925, now seen corresponding path program 4 times [2021-07-09 16:16:28,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:28,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109096380] [2021-07-09 16:16:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:28,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:28,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109096380] [2021-07-09 16:16:28,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109096380] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:28,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:28,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:16:28,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76564975] [2021-07-09 16:16:28,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:16:28,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:28,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:16:28,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:16:28,967 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-09 16:16:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:30,967 INFO L93 Difference]: Finished difference Result 57645 states and 242941 transitions. [2021-07-09 16:16:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:16:30,968 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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 [2021-07-09 16:16:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:31,257 INFO L225 Difference]: With dead ends: 57645 [2021-07-09 16:16:31,257 INFO L226 Difference]: Without dead ends: 56406 [2021-07-09 16:16:31,258 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 701.2ms TimeCoverageRelationStatistics Valid=177, Invalid=1155, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:16:31,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56406 states. [2021-07-09 16:16:32,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56406 to 51756. [2021-07-09 16:16:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51756 states, 51754 states have (on average 4.2585693859411835) internal successors, (220398), 51755 states have internal predecessors, (220398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51756 states to 51756 states and 220398 transitions. [2021-07-09 16:16:33,228 INFO L78 Accepts]: Start accepts. Automaton has 51756 states and 220398 transitions. Word has length 68 [2021-07-09 16:16:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:33,228 INFO L482 AbstractCegarLoop]: Abstraction has 51756 states and 220398 transitions. [2021-07-09 16:16:33,228 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 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) [2021-07-09 16:16:33,228 INFO L276 IsEmpty]: Start isEmpty. Operand 51756 states and 220398 transitions. [2021-07-09 16:16:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:33,263 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:33,263 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:33,263 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-09 16:16:33,263 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:33,263 INFO L82 PathProgramCache]: Analyzing trace with hash -503146337, now seen corresponding path program 5 times [2021-07-09 16:16:33,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:33,264 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435140350] [2021-07-09 16:16:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:34,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:34,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:34,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435140350] [2021-07-09 16:16:34,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435140350] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:34,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:34,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:16:34,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768660659] [2021-07-09 16:16:34,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:16:34,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:34,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:16:34,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:16:34,158 INFO L87 Difference]: Start difference. First operand 51756 states and 220398 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 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) [2021-07-09 16:16:36,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:36,267 INFO L93 Difference]: Finished difference Result 59862 states and 251899 transitions. [2021-07-09 16:16:36,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-09 16:16:36,267 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 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 [2021-07-09 16:16:36,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:36,531 INFO L225 Difference]: With dead ends: 59862 [2021-07-09 16:16:36,531 INFO L226 Difference]: Without dead ends: 58623 [2021-07-09 16:16:36,532 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1394.7ms TimeCoverageRelationStatistics Valid=213, Invalid=1593, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 16:16:37,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58623 states. [2021-07-09 16:16:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58623 to 51081. [2021-07-09 16:16:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51081 states, 51079 states have (on average 4.252882789404648) internal successors, (217233), 51080 states have internal predecessors, (217233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51081 states to 51081 states and 217233 transitions. [2021-07-09 16:16:38,795 INFO L78 Accepts]: Start accepts. Automaton has 51081 states and 217233 transitions. Word has length 68 [2021-07-09 16:16:38,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:38,795 INFO L482 AbstractCegarLoop]: Abstraction has 51081 states and 217233 transitions. [2021-07-09 16:16:38,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 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) [2021-07-09 16:16:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 51081 states and 217233 transitions. [2021-07-09 16:16:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:38,845 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:38,845 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:38,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-09 16:16:38,845 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:38,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:38,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1285672051, now seen corresponding path program 6 times [2021-07-09 16:16:38,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:38,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220834649] [2021-07-09 16:16:38,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:39,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:39,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:39,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220834649] [2021-07-09 16:16:39,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220834649] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:39,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:39,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-07-09 16:16:39,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580601216] [2021-07-09 16:16:39,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 16:16:39,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:39,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 16:16:39,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-07-09 16:16:39,424 INFO L87 Difference]: Start difference. First operand 51081 states and 217233 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-09 16:16:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:41,824 INFO L93 Difference]: Finished difference Result 57180 states and 240266 transitions. [2021-07-09 16:16:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:16:41,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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 [2021-07-09 16:16:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:42,372 INFO L225 Difference]: With dead ends: 57180 [2021-07-09 16:16:42,373 INFO L226 Difference]: Without dead ends: 55851 [2021-07-09 16:16:42,373 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1332.6ms TimeCoverageRelationStatistics Valid=220, Invalid=1420, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:16:42,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55851 states. [2021-07-09 16:16:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55851 to 51102. [2021-07-09 16:16:44,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51102 states, 51100 states have (on average 4.251859099804305) internal successors, (217270), 51101 states have internal predecessors, (217270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51102 states to 51102 states and 217270 transitions. [2021-07-09 16:16:44,488 INFO L78 Accepts]: Start accepts. Automaton has 51102 states and 217270 transitions. Word has length 68 [2021-07-09 16:16:44,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:44,488 INFO L482 AbstractCegarLoop]: Abstraction has 51102 states and 217270 transitions. [2021-07-09 16:16:44,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 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) [2021-07-09 16:16:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 51102 states and 217270 transitions. [2021-07-09 16:16:44,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:44,524 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:44,524 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:44,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-09 16:16:44,525 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:44,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:44,526 INFO L82 PathProgramCache]: Analyzing trace with hash -747687525, now seen corresponding path program 7 times [2021-07-09 16:16:44,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:44,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315846194] [2021-07-09 16:16:44,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:44,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:44,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315846194] [2021-07-09 16:16:44,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315846194] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:44,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:44,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 16:16:44,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007335697] [2021-07-09 16:16:44,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 16:16:44,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:44,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 16:16:44,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:16:44,824 INFO L87 Difference]: Start difference. First operand 51102 states and 217270 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-09 16:16:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:46,556 INFO L93 Difference]: Finished difference Result 57173 states and 240259 transitions. [2021-07-09 16:16:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:16:46,556 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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 [2021-07-09 16:16:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:46,830 INFO L225 Difference]: With dead ends: 57173 [2021-07-09 16:16:46,830 INFO L226 Difference]: Without dead ends: 55844 [2021-07-09 16:16:46,830 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 493.6ms TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:16:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55844 states. [2021-07-09 16:16:48,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55844 to 51103. [2021-07-09 16:16:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51103 states, 51101 states have (on average 4.251795463885247) internal successors, (217271), 51102 states have internal predecessors, (217271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51103 states to 51103 states and 217271 transitions. [2021-07-09 16:16:48,790 INFO L78 Accepts]: Start accepts. Automaton has 51103 states and 217271 transitions. Word has length 68 [2021-07-09 16:16:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:48,790 INFO L482 AbstractCegarLoop]: Abstraction has 51103 states and 217271 transitions. [2021-07-09 16:16:48,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-09 16:16:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 51103 states and 217271 transitions. [2021-07-09 16:16:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:48,827 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:48,828 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:48,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-09 16:16:48,828 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:48,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:48,828 INFO L82 PathProgramCache]: Analyzing trace with hash 229412969, now seen corresponding path program 8 times [2021-07-09 16:16:48,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:48,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446895961] [2021-07-09 16:16:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:49,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:49,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446895961] [2021-07-09 16:16:49,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446895961] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:49,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:49,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 16:16:49,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980375079] [2021-07-09 16:16:49,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 16:16:49,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:49,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 16:16:49,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:16:49,112 INFO L87 Difference]: Start difference. First operand 51103 states and 217271 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-09 16:16:50,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:50,453 INFO L93 Difference]: Finished difference Result 57203 states and 240305 transitions. [2021-07-09 16:16:50,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:16:50,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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 [2021-07-09 16:16:50,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:51,033 INFO L225 Difference]: With dead ends: 57203 [2021-07-09 16:16:51,033 INFO L226 Difference]: Without dead ends: 55874 [2021-07-09 16:16:51,033 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 418.2ms TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:16:51,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55874 states. [2021-07-09 16:16:52,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55874 to 51132. [2021-07-09 16:16:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51132 states, 51130 states have (on average 4.250264032857422) internal successors, (217316), 51131 states have internal predecessors, (217316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51132 states to 51132 states and 217316 transitions. [2021-07-09 16:16:53,045 INFO L78 Accepts]: Start accepts. Automaton has 51132 states and 217316 transitions. Word has length 68 [2021-07-09 16:16:53,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:53,046 INFO L482 AbstractCegarLoop]: Abstraction has 51132 states and 217316 transitions. [2021-07-09 16:16:53,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 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) [2021-07-09 16:16:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 51132 states and 217316 transitions. [2021-07-09 16:16:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:16:53,081 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:53,081 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:53,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-09 16:16:53,082 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:53,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:53,082 INFO L82 PathProgramCache]: Analyzing trace with hash -838870671, now seen corresponding path program 9 times [2021-07-09 16:16:53,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:53,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969797084] [2021-07-09 16:16:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:53,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:53,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969797084] [2021-07-09 16:16:53,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969797084] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:53,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:53,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-09 16:16:53,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172868616] [2021-07-09 16:16:53,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 16:16:53,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:53,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 16:16:53,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:16:53,328 INFO L87 Difference]: Start difference. First operand 51132 states and 217316 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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) [2021-07-09 16:16:54,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:54,345 INFO L93 Difference]: Finished difference Result 55837 states and 234184 transitions. [2021-07-09 16:16:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 16:16:54,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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 [2021-07-09 16:16:54,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:16:54,597 INFO L225 Difference]: With dead ends: 55837 [2021-07-09 16:16:54,597 INFO L226 Difference]: Without dead ends: 54508 [2021-07-09 16:16:54,597 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 260.5ms TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:16:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54508 states. [2021-07-09 16:16:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54508 to 49737. [2021-07-09 16:16:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49737 states, 49735 states have (on average 4.245501156127475) internal successors, (211150), 49736 states have internal predecessors, (211150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49737 states to 49737 states and 211150 transitions. [2021-07-09 16:16:56,902 INFO L78 Accepts]: Start accepts. Automaton has 49737 states and 211150 transitions. Word has length 68 [2021-07-09 16:16:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:16:56,902 INFO L482 AbstractCegarLoop]: Abstraction has 49737 states and 211150 transitions. [2021-07-09 16:16:56,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 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) [2021-07-09 16:16:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 49737 states and 211150 transitions. [2021-07-09 16:16:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 16:16:56,958 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:16:56,958 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:16:56,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-09 16:16:56,958 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:16:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:16:56,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1123040390, now seen corresponding path program 1 times [2021-07-09 16:16:56,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:16:56,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113215283] [2021-07-09 16:16:56,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:16:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:16:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:16:57,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:16:57,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113215283] [2021-07-09 16:16:57,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113215283] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:16:57,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:16:57,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:16:57,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061152069] [2021-07-09 16:16:57,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:16:57,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:16:57,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:16:57,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:16:57,545 INFO L87 Difference]: Start difference. First operand 49737 states and 211150 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:16:59,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:16:59,945 INFO L93 Difference]: Finished difference Result 57256 states and 239996 transitions. [2021-07-09 16:16:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:16:59,945 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-09 16:16:59,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:00,238 INFO L225 Difference]: With dead ends: 57256 [2021-07-09 16:17:00,238 INFO L226 Difference]: Without dead ends: 56134 [2021-07-09 16:17:00,238 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1098.1ms TimeCoverageRelationStatistics Valid=213, Invalid=1509, Unknown=0, NotChecked=0, Total=1722 [2021-07-09 16:17:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56134 states. [2021-07-09 16:17:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56134 to 49737. [2021-07-09 16:17:01,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49737 states, 49735 states have (on average 4.244596360711772) internal successors, (211105), 49736 states have internal predecessors, (211105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49737 states to 49737 states and 211105 transitions. [2021-07-09 16:17:02,084 INFO L78 Accepts]: Start accepts. Automaton has 49737 states and 211105 transitions. Word has length 70 [2021-07-09 16:17:02,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:02,084 INFO L482 AbstractCegarLoop]: Abstraction has 49737 states and 211105 transitions. [2021-07-09 16:17:02,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 49737 states and 211105 transitions. [2021-07-09 16:17:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 16:17:02,123 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:02,123 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:02,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-09 16:17:02,123 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:02,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:02,124 INFO L82 PathProgramCache]: Analyzing trace with hash 415800452, now seen corresponding path program 2 times [2021-07-09 16:17:02,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:02,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862369471] [2021-07-09 16:17:02,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:02,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:02,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862369471] [2021-07-09 16:17:02,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862369471] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:02,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:02,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:17:02,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451628616] [2021-07-09 16:17:02,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:17:02,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:02,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:17:02,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:17:02,875 INFO L87 Difference]: Start difference. First operand 49737 states and 211105 transitions. Second operand has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:04,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:04,561 INFO L93 Difference]: Finished difference Result 56867 states and 238439 transitions. [2021-07-09 16:17:04,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:17:04,562 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-09 16:17:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:04,764 INFO L225 Difference]: With dead ends: 56867 [2021-07-09 16:17:04,764 INFO L226 Difference]: Without dead ends: 55700 [2021-07-09 16:17:04,764 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1124.2ms TimeCoverageRelationStatistics Valid=164, Invalid=1168, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 16:17:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55700 states. [2021-07-09 16:17:06,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55700 to 49329. [2021-07-09 16:17:06,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49329 states, 49327 states have (on average 4.248768422973219) internal successors, (209579), 49328 states have internal predecessors, (209579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:06,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49329 states to 49329 states and 209579 transitions. [2021-07-09 16:17:06,789 INFO L78 Accepts]: Start accepts. Automaton has 49329 states and 209579 transitions. Word has length 70 [2021-07-09 16:17:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:06,789 INFO L482 AbstractCegarLoop]: Abstraction has 49329 states and 209579 transitions. [2021-07-09 16:17:06,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 49329 states and 209579 transitions. [2021-07-09 16:17:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 16:17:06,894 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:06,894 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:06,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-09 16:17:06,895 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:06,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:06,895 INFO L82 PathProgramCache]: Analyzing trace with hash 622206956, now seen corresponding path program 3 times [2021-07-09 16:17:06,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:06,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972331165] [2021-07-09 16:17:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:07,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:07,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972331165] [2021-07-09 16:17:07,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972331165] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:07,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:07,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:17:07,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813242096] [2021-07-09 16:17:07,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:17:07,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:07,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:17:07,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:17:07,282 INFO L87 Difference]: Start difference. First operand 49329 states and 209579 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:08,890 INFO L93 Difference]: Finished difference Result 53309 states and 223950 transitions. [2021-07-09 16:17:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-09 16:17:08,890 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-09 16:17:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:09,124 INFO L225 Difference]: With dead ends: 53309 [2021-07-09 16:17:09,124 INFO L226 Difference]: Without dead ends: 52526 [2021-07-09 16:17:09,124 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 654.5ms TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:17:09,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52526 states. [2021-07-09 16:17:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52526 to 46131. [2021-07-09 16:17:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46131 states, 46129 states have (on average 4.255609269656832) internal successors, (196307), 46130 states have internal predecessors, (196307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:10,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46131 states to 46131 states and 196307 transitions. [2021-07-09 16:17:10,942 INFO L78 Accepts]: Start accepts. Automaton has 46131 states and 196307 transitions. Word has length 70 [2021-07-09 16:17:10,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:10,942 INFO L482 AbstractCegarLoop]: Abstraction has 46131 states and 196307 transitions. [2021-07-09 16:17:10,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand 46131 states and 196307 transitions. [2021-07-09 16:17:10,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:17:11,341 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:11,341 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:11,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-09 16:17:11,341 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:11,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1465651789, now seen corresponding path program 1 times [2021-07-09 16:17:11,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:11,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406461955] [2021-07-09 16:17:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:12,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:12,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406461955] [2021-07-09 16:17:12,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406461955] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:12,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:12,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:17:12,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847079687] [2021-07-09 16:17:12,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:17:12,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:12,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:17:12,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:17:12,061 INFO L87 Difference]: Start difference. First operand 46131 states and 196307 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:13,307 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-07-09 16:17:14,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:14,239 INFO L93 Difference]: Finished difference Result 46335 states and 194500 transitions. [2021-07-09 16:17:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 16:17:14,240 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-09 16:17:14,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:14,605 INFO L225 Difference]: With dead ends: 46335 [2021-07-09 16:17:14,605 INFO L226 Difference]: Without dead ends: 45255 [2021-07-09 16:17:14,605 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1515.8ms TimeCoverageRelationStatistics Valid=243, Invalid=1649, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:17:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45255 states. [2021-07-09 16:17:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45255 to 40527. [2021-07-09 16:17:15,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40527 states, 40525 states have (on average 4.238864898210981) internal successors, (171780), 40526 states have internal predecessors, (171780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40527 states to 40527 states and 171780 transitions. [2021-07-09 16:17:16,013 INFO L78 Accepts]: Start accepts. Automaton has 40527 states and 171780 transitions. Word has length 71 [2021-07-09 16:17:16,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:16,014 INFO L482 AbstractCegarLoop]: Abstraction has 40527 states and 171780 transitions. [2021-07-09 16:17:16,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 40527 states and 171780 transitions. [2021-07-09 16:17:16,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:17:16,068 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:16,068 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:16,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-09 16:17:16,068 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:16,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:16,069 INFO L82 PathProgramCache]: Analyzing trace with hash -2092964202, now seen corresponding path program 1 times [2021-07-09 16:17:16,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:16,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698437801] [2021-07-09 16:17:16,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:16,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:16,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698437801] [2021-07-09 16:17:16,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698437801] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:16,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:16,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-07-09 16:17:16,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380937650] [2021-07-09 16:17:16,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 16:17:16,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:16,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 16:17:16,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-07-09 16:17:16,238 INFO L87 Difference]: Start difference. First operand 40527 states and 171780 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:17,465 INFO L93 Difference]: Finished difference Result 62148 states and 255238 transitions. [2021-07-09 16:17:17,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:17:17,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-09 16:17:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:18,092 INFO L225 Difference]: With dead ends: 62148 [2021-07-09 16:17:18,093 INFO L226 Difference]: Without dead ends: 47082 [2021-07-09 16:17:18,093 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 224.6ms TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:17:18,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47082 states. [2021-07-09 16:17:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47082 to 37407. [2021-07-09 16:17:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37407 states, 37405 states have (on average 4.195535356235798) internal successors, (156934), 37406 states have internal predecessors, (156934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:19,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37407 states to 37407 states and 156934 transitions. [2021-07-09 16:17:19,365 INFO L78 Accepts]: Start accepts. Automaton has 37407 states and 156934 transitions. Word has length 71 [2021-07-09 16:17:19,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:19,365 INFO L482 AbstractCegarLoop]: Abstraction has 37407 states and 156934 transitions. [2021-07-09 16:17:19,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:19,365 INFO L276 IsEmpty]: Start isEmpty. Operand 37407 states and 156934 transitions. [2021-07-09 16:17:19,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:17:19,404 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:19,404 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:19,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-09 16:17:19,404 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:19,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:19,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1976839662, now seen corresponding path program 2 times [2021-07-09 16:17:19,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:19,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024135892] [2021-07-09 16:17:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:19,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:19,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024135892] [2021-07-09 16:17:19,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024135892] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:19,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:19,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:17:19,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438870521] [2021-07-09 16:17:19,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:17:19,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:19,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:17:19,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:17:19,504 INFO L87 Difference]: Start difference. First operand 37407 states and 156934 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:20,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:20,450 INFO L93 Difference]: Finished difference Result 52101 states and 213437 transitions. [2021-07-09 16:17:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 16:17:20,451 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-09 16:17:20,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:20,635 INFO L225 Difference]: With dead ends: 52101 [2021-07-09 16:17:20,636 INFO L226 Difference]: Without dead ends: 45375 [2021-07-09 16:17:20,636 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 216.9ms TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2021-07-09 16:17:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45375 states. [2021-07-09 16:17:21,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45375 to 37416. [2021-07-09 16:17:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37416 states, 37414 states have (on average 4.195648687657027) internal successors, (156976), 37415 states have internal predecessors, (156976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37416 states to 37416 states and 156976 transitions. [2021-07-09 16:17:22,201 INFO L78 Accepts]: Start accepts. Automaton has 37416 states and 156976 transitions. Word has length 71 [2021-07-09 16:17:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:22,202 INFO L482 AbstractCegarLoop]: Abstraction has 37416 states and 156976 transitions. [2021-07-09 16:17:22,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 37416 states and 156976 transitions. [2021-07-09 16:17:22,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-07-09 16:17:22,240 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:22,241 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:22,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-09 16:17:22,241 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:22,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1534265332, now seen corresponding path program 3 times [2021-07-09 16:17:22,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:22,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176702224] [2021-07-09 16:17:22,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:22,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:22,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176702224] [2021-07-09 16:17:22,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176702224] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:22,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:22,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 16:17:22,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807953985] [2021-07-09 16:17:22,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 16:17:22,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:22,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 16:17:22,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-07-09 16:17:22,393 INFO L87 Difference]: Start difference. First operand 37416 states and 156976 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:23,412 INFO L93 Difference]: Finished difference Result 47706 states and 195499 transitions. [2021-07-09 16:17:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 16:17:23,413 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-07-09 16:17:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:23,555 INFO L225 Difference]: With dead ends: 47706 [2021-07-09 16:17:23,556 INFO L226 Difference]: Without dead ends: 42690 [2021-07-09 16:17:23,556 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 314.2ms TimeCoverageRelationStatistics Valid=169, Invalid=383, Unknown=0, NotChecked=0, Total=552 [2021-07-09 16:17:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42690 states. [2021-07-09 16:17:24,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42690 to 34959. [2021-07-09 16:17:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34959 states, 34957 states have (on average 4.183539777440856) internal successors, (146244), 34958 states have internal predecessors, (146244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:24,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34959 states to 34959 states and 146244 transitions. [2021-07-09 16:17:24,937 INFO L78 Accepts]: Start accepts. Automaton has 34959 states and 146244 transitions. Word has length 71 [2021-07-09 16:17:24,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:24,937 INFO L482 AbstractCegarLoop]: Abstraction has 34959 states and 146244 transitions. [2021-07-09 16:17:24,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 34959 states and 146244 transitions. [2021-07-09 16:17:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-09 16:17:24,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:24,979 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:24,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-09 16:17:24,980 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:24,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:24,980 INFO L82 PathProgramCache]: Analyzing trace with hash -340836015, now seen corresponding path program 1 times [2021-07-09 16:17:24,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:24,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906303744] [2021-07-09 16:17:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:25,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:25,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906303744] [2021-07-09 16:17:25,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906303744] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:25,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:25,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:17:25,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973731134] [2021-07-09 16:17:25,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:17:25,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:25,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:17:25,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:17:25,726 INFO L87 Difference]: Start difference. First operand 34959 states and 146244 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:27,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:27,264 INFO L93 Difference]: Finished difference Result 43893 states and 182738 transitions. [2021-07-09 16:17:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-09 16:17:27,265 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-09 16:17:27,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:27,421 INFO L225 Difference]: With dead ends: 43893 [2021-07-09 16:17:27,421 INFO L226 Difference]: Without dead ends: 43551 [2021-07-09 16:17:27,421 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1124.4ms TimeCoverageRelationStatistics Valid=225, Invalid=1181, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:17:27,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43551 states. [2021-07-09 16:17:28,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43551 to 36897. [2021-07-09 16:17:28,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36897 states, 36895 states have (on average 4.217509147580973) internal successors, (155605), 36896 states have internal predecessors, (155605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36897 states to 36897 states and 155605 transitions. [2021-07-09 16:17:28,824 INFO L78 Accepts]: Start accepts. Automaton has 36897 states and 155605 transitions. Word has length 73 [2021-07-09 16:17:28,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:28,825 INFO L482 AbstractCegarLoop]: Abstraction has 36897 states and 155605 transitions. [2021-07-09 16:17:28,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:28,825 INFO L276 IsEmpty]: Start isEmpty. Operand 36897 states and 155605 transitions. [2021-07-09 16:17:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-09 16:17:28,874 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:28,874 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:28,875 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-09 16:17:28,875 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:28,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:28,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1261394033, now seen corresponding path program 2 times [2021-07-09 16:17:28,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:28,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224398852] [2021-07-09 16:17:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:29,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:29,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224398852] [2021-07-09 16:17:29,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224398852] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:29,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:29,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:17:29,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785065733] [2021-07-09 16:17:29,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:17:29,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:29,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:17:29,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:17:29,599 INFO L87 Difference]: Start difference. First operand 36897 states and 155605 transitions. Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:30,101 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2021-07-09 16:17:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:31,705 INFO L93 Difference]: Finished difference Result 37791 states and 157181 transitions. [2021-07-09 16:17:31,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:17:31,706 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-09 16:17:31,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:31,849 INFO L225 Difference]: With dead ends: 37791 [2021-07-09 16:17:31,849 INFO L226 Difference]: Without dead ends: 35991 [2021-07-09 16:17:31,850 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1549.9ms TimeCoverageRelationStatistics Valid=293, Invalid=1777, Unknown=0, NotChecked=0, Total=2070 [2021-07-09 16:17:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35991 states. [2021-07-09 16:17:32,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35991 to 29025. [2021-07-09 16:17:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29025 states, 29023 states have (on average 4.175447059228888) internal successors, (121184), 29024 states have internal predecessors, (121184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29025 states to 29025 states and 121184 transitions. [2021-07-09 16:17:32,750 INFO L78 Accepts]: Start accepts. Automaton has 29025 states and 121184 transitions. Word has length 73 [2021-07-09 16:17:32,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:32,750 INFO L482 AbstractCegarLoop]: Abstraction has 29025 states and 121184 transitions. [2021-07-09 16:17:32,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 29025 states and 121184 transitions. [2021-07-09 16:17:32,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-09 16:17:32,787 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:32,788 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:32,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-09 16:17:32,788 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:32,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:32,788 INFO L82 PathProgramCache]: Analyzing trace with hash 426774956, now seen corresponding path program 1 times [2021-07-09 16:17:32,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:32,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579471853] [2021-07-09 16:17:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:33,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:33,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579471853] [2021-07-09 16:17:33,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579471853] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:33,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:33,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:17:33,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739585017] [2021-07-09 16:17:33,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:17:33,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:33,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:17:33,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:17:33,971 INFO L87 Difference]: Start difference. First operand 29025 states and 121184 transitions. Second operand has 26 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 26 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:36,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:36,872 INFO L93 Difference]: Finished difference Result 38504 states and 159667 transitions. [2021-07-09 16:17:36,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-09 16:17:36,873 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 26 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-09 16:17:36,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:37,010 INFO L225 Difference]: With dead ends: 38504 [2021-07-09 16:17:37,011 INFO L226 Difference]: Without dead ends: 34922 [2021-07-09 16:17:37,011 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 2280.0ms TimeCoverageRelationStatistics Valid=254, Invalid=2296, Unknown=0, NotChecked=0, Total=2550 [2021-07-09 16:17:37,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34922 states. [2021-07-09 16:17:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34922 to 29592. [2021-07-09 16:17:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29592 states, 29590 states have (on average 4.223893207164583) internal successors, (124985), 29591 states have internal predecessors, (124985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:37,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29592 states to 29592 states and 124985 transitions. [2021-07-09 16:17:37,943 INFO L78 Accepts]: Start accepts. Automaton has 29592 states and 124985 transitions. Word has length 73 [2021-07-09 16:17:37,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:37,943 INFO L482 AbstractCegarLoop]: Abstraction has 29592 states and 124985 transitions. [2021-07-09 16:17:37,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.8076923076923075) internal successors, (73), 26 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand 29592 states and 124985 transitions. [2021-07-09 16:17:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-07-09 16:17:37,987 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:37,987 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:37,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-09 16:17:37,987 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:37,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:37,988 INFO L82 PathProgramCache]: Analyzing trace with hash -492337874, now seen corresponding path program 2 times [2021-07-09 16:17:37,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:37,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068068902] [2021-07-09 16:17:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:38,485 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2021-07-09 16:17:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:39,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:39,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068068902] [2021-07-09 16:17:39,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068068902] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:39,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:39,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-07-09 16:17:39,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347657976] [2021-07-09 16:17:39,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-09 16:17:39,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:39,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-09 16:17:39,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-07-09 16:17:39,078 INFO L87 Difference]: Start difference. First operand 29592 states and 124985 transitions. Second operand has 25 states, 25 states have (on average 2.92) internal successors, (73), 25 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:40,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:40,985 INFO L93 Difference]: Finished difference Result 29856 states and 124699 transitions. [2021-07-09 16:17:40,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-09 16:17:40,986 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.92) internal successors, (73), 25 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-07-09 16:17:40,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:41,076 INFO L225 Difference]: With dead ends: 29856 [2021-07-09 16:17:41,076 INFO L226 Difference]: Without dead ends: 27300 [2021-07-09 16:17:41,077 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1648.3ms TimeCoverageRelationStatistics Valid=245, Invalid=1825, Unknown=0, NotChecked=0, Total=2070 [2021-07-09 16:17:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27300 states. [2021-07-09 16:17:41,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27300 to 19407. [2021-07-09 16:17:41,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19407 states, 19405 states have (on average 4.1668126771450655) internal successors, (80857), 19406 states have internal predecessors, (80857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19407 states to 19407 states and 80857 transitions. [2021-07-09 16:17:41,686 INFO L78 Accepts]: Start accepts. Automaton has 19407 states and 80857 transitions. Word has length 73 [2021-07-09 16:17:41,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:41,686 INFO L482 AbstractCegarLoop]: Abstraction has 19407 states and 80857 transitions. [2021-07-09 16:17:41,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.92) internal successors, (73), 25 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:41,687 INFO L276 IsEmpty]: Start isEmpty. Operand 19407 states and 80857 transitions. [2021-07-09 16:17:41,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:41,714 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:41,714 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:41,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-09 16:17:41,714 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:41,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:41,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1399104941, now seen corresponding path program 1 times [2021-07-09 16:17:41,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:41,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310093059] [2021-07-09 16:17:41,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:42,274 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 18 [2021-07-09 16:17:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:42,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:42,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310093059] [2021-07-09 16:17:42,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310093059] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:42,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:42,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:17:42,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187390181] [2021-07-09 16:17:42,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:17:42,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:42,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:17:42,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:17:42,278 INFO L87 Difference]: Start difference. First operand 19407 states and 80857 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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) [2021-07-09 16:17:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:43,356 INFO L93 Difference]: Finished difference Result 23048 states and 93525 transitions. [2021-07-09 16:17:43,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:17:43,356 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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 [2021-07-09 16:17:43,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:43,429 INFO L225 Difference]: With dead ends: 23048 [2021-07-09 16:17:43,429 INFO L226 Difference]: Without dead ends: 22184 [2021-07-09 16:17:43,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 838.1ms TimeCoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:17:43,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22184 states. [2021-07-09 16:17:43,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22184 to 21764. [2021-07-09 16:17:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-09 16:17:44,011 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-09 16:17:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:44,012 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-09 16:17:44,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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) [2021-07-09 16:17:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-09 16:17:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:44,164 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:44,165 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:44,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-09 16:17:44,165 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:44,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:44,165 INFO L82 PathProgramCache]: Analyzing trace with hash 300304151, now seen corresponding path program 2 times [2021-07-09 16:17:44,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:44,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319594582] [2021-07-09 16:17:44,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:44,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:44,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319594582] [2021-07-09 16:17:44,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319594582] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:44,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:44,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:17:44,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335037556] [2021-07-09 16:17:44,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:17:44,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:44,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:17:44,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:17:44,624 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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) [2021-07-09 16:17:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:45,846 INFO L93 Difference]: Finished difference Result 25355 states and 101940 transitions. [2021-07-09 16:17:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-09 16:17:45,846 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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 [2021-07-09 16:17:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:45,928 INFO L225 Difference]: With dead ends: 25355 [2021-07-09 16:17:45,928 INFO L226 Difference]: Without dead ends: 24491 [2021-07-09 16:17:45,929 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 692.7ms TimeCoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:17:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24491 states. [2021-07-09 16:17:46,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24491 to 21764. [2021-07-09 16:17:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-09 16:17:46,581 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-09 16:17:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:46,582 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-09 16:17:46,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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) [2021-07-09 16:17:46,582 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-09 16:17:46,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:46,623 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:46,624 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:46,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-09 16:17:46,624 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:46,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:46,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1980704113, now seen corresponding path program 3 times [2021-07-09 16:17:46,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:46,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445620457] [2021-07-09 16:17:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:47,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:47,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445620457] [2021-07-09 16:17:47,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445620457] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:47,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:47,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:17:47,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448112374] [2021-07-09 16:17:47,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:17:47,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:47,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:17:47,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:17:47,090 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 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) [2021-07-09 16:17:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:48,620 INFO L93 Difference]: Finished difference Result 27702 states and 110487 transitions. [2021-07-09 16:17:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:17:48,621 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 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 [2021-07-09 16:17:48,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:48,709 INFO L225 Difference]: With dead ends: 27702 [2021-07-09 16:17:48,709 INFO L226 Difference]: Without dead ends: 26838 [2021-07-09 16:17:48,709 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 895.4ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:17:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26838 states. [2021-07-09 16:17:49,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26838 to 21764. [2021-07-09 16:17:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-09 16:17:49,365 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-09 16:17:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:49,366 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-09 16:17:49,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 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) [2021-07-09 16:17:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-09 16:17:49,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:49,400 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:49,400 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:49,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-09 16:17:49,400 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:49,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:49,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1873781855, now seen corresponding path program 4 times [2021-07-09 16:17:49,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:49,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410422816] [2021-07-09 16:17:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:50,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:50,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:50,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410422816] [2021-07-09 16:17:50,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410422816] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:50,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:50,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-09 16:17:50,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313559257] [2021-07-09 16:17:50,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 16:17:50,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:50,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 16:17:50,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:17:50,130 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 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) [2021-07-09 16:17:51,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:51,665 INFO L93 Difference]: Finished difference Result 25185 states and 101429 transitions. [2021-07-09 16:17:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:17:51,666 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 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 [2021-07-09 16:17:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:51,750 INFO L225 Difference]: With dead ends: 25185 [2021-07-09 16:17:51,750 INFO L226 Difference]: Without dead ends: 24321 [2021-07-09 16:17:51,751 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1147.9ms TimeCoverageRelationStatistics Valid=190, Invalid=1370, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 16:17:51,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24321 states. [2021-07-09 16:17:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24321 to 21764. [2021-07-09 16:17:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:52,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-09 16:17:52,469 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-09 16:17:52,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:52,469 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-09 16:17:52,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 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) [2021-07-09 16:17:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-09 16:17:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:52,504 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:52,504 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:52,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-09 16:17:52,504 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:52,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:52,505 INFO L82 PathProgramCache]: Analyzing trace with hash 353605117, now seen corresponding path program 5 times [2021-07-09 16:17:52,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:52,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467620633] [2021-07-09 16:17:52,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:53,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:53,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467620633] [2021-07-09 16:17:53,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467620633] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:53,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:53,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:17:53,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731768365] [2021-07-09 16:17:53,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:17:53,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:53,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:17:53,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:17:53,135 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 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) [2021-07-09 16:17:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:55,026 INFO L93 Difference]: Finished difference Result 28422 states and 114253 transitions. [2021-07-09 16:17:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:17:55,026 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 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 [2021-07-09 16:17:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:55,136 INFO L225 Difference]: With dead ends: 28422 [2021-07-09 16:17:55,136 INFO L226 Difference]: Without dead ends: 27558 [2021-07-09 16:17:55,136 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1279.6ms TimeCoverageRelationStatistics Valid=244, Invalid=1736, Unknown=0, NotChecked=0, Total=1980 [2021-07-09 16:17:55,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27558 states. [2021-07-09 16:17:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27558 to 21764. [2021-07-09 16:17:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-09 16:17:55,888 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-09 16:17:55,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:55,888 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-09 16:17:55,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 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) [2021-07-09 16:17:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-09 16:17:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:55,922 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:55,922 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:55,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-09 16:17:55,923 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:55,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:55,923 INFO L82 PathProgramCache]: Analyzing trace with hash 455637243, now seen corresponding path program 6 times [2021-07-09 16:17:55,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:55,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998633799] [2021-07-09 16:17:55,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:56,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:56,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998633799] [2021-07-09 16:17:56,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998633799] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:56,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:56,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-07-09 16:17:56,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008145060] [2021-07-09 16:17:56,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-09 16:17:56,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:56,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-09 16:17:56,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-07-09 16:17:56,521 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 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) [2021-07-09 16:17:58,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:17:58,331 INFO L93 Difference]: Finished difference Result 25035 states and 100964 transitions. [2021-07-09 16:17:58,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 16:17:58,332 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 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 [2021-07-09 16:17:58,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:17:58,415 INFO L225 Difference]: With dead ends: 25035 [2021-07-09 16:17:58,417 INFO L226 Difference]: Without dead ends: 24171 [2021-07-09 16:17:58,418 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1058.8ms TimeCoverageRelationStatistics Valid=231, Invalid=1661, Unknown=0, NotChecked=0, Total=1892 [2021-07-09 16:17:58,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24171 states. [2021-07-09 16:17:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24171 to 21764. [2021-07-09 16:17:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21764 states, 21762 states have (on average 4.107251171767301) internal successors, (89382), 21763 states have internal predecessors, (89382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:17:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21764 states to 21764 states and 89382 transitions. [2021-07-09 16:17:59,044 INFO L78 Accepts]: Start accepts. Automaton has 21764 states and 89382 transitions. Word has length 74 [2021-07-09 16:17:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:17:59,044 INFO L482 AbstractCegarLoop]: Abstraction has 21764 states and 89382 transitions. [2021-07-09 16:17:59,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 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) [2021-07-09 16:17:59,045 INFO L276 IsEmpty]: Start isEmpty. Operand 21764 states and 89382 transitions. [2021-07-09 16:17:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:17:59,078 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:17:59,078 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:17:59,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-09 16:17:59,078 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:17:59,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:17:59,078 INFO L82 PathProgramCache]: Analyzing trace with hash -481694563, now seen corresponding path program 7 times [2021-07-09 16:17:59,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:17:59,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306098942] [2021-07-09 16:17:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:17:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:17:59,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:17:59,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:17:59,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306098942] [2021-07-09 16:17:59,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306098942] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:17:59,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:17:59,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:17:59,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486231383] [2021-07-09 16:17:59,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:17:59,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:17:59,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:17:59,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:17:59,925 INFO L87 Difference]: Start difference. First operand 21764 states and 89382 transitions. Second operand has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 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) [2021-07-09 16:18:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:01,952 INFO L93 Difference]: Finished difference Result 26958 states and 108131 transitions. [2021-07-09 16:18:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 16:18:01,952 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 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 [2021-07-09 16:18:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:02,020 INFO L225 Difference]: With dead ends: 26958 [2021-07-09 16:18:02,021 INFO L226 Difference]: Without dead ends: 23502 [2021-07-09 16:18:02,021 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1240.8ms TimeCoverageRelationStatistics Valid=247, Invalid=2009, Unknown=0, NotChecked=0, Total=2256 [2021-07-09 16:18:02,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23502 states. [2021-07-09 16:18:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23502 to 19172. [2021-07-09 16:18:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19172 states, 19170 states have (on average 4.060719874804382) internal successors, (77844), 19171 states have internal predecessors, (77844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:02,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19172 states to 19172 states and 77844 transitions. [2021-07-09 16:18:02,718 INFO L78 Accepts]: Start accepts. Automaton has 19172 states and 77844 transitions. Word has length 74 [2021-07-09 16:18:02,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:02,718 INFO L482 AbstractCegarLoop]: Abstraction has 19172 states and 77844 transitions. [2021-07-09 16:18:02,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 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) [2021-07-09 16:18:02,719 INFO L276 IsEmpty]: Start isEmpty. Operand 19172 states and 77844 transitions. [2021-07-09 16:18:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:18:02,757 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:02,758 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:02,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-09 16:18:02,758 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:02,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:02,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1223596091, now seen corresponding path program 8 times [2021-07-09 16:18:02,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:02,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255245800] [2021-07-09 16:18:02,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:03,505 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-07-09 16:18:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:03,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:03,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255245800] [2021-07-09 16:18:03,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255245800] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:03,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:03,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-07-09 16:18:03,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617025905] [2021-07-09 16:18:03,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 16:18:03,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:03,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 16:18:03,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:18:03,750 INFO L87 Difference]: Start difference. First operand 19172 states and 77844 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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) [2021-07-09 16:18:05,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:05,860 INFO L93 Difference]: Finished difference Result 22885 states and 90632 transitions. [2021-07-09 16:18:05,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-09 16:18:05,860 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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 [2021-07-09 16:18:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:05,924 INFO L225 Difference]: With dead ends: 22885 [2021-07-09 16:18:05,924 INFO L226 Difference]: Without dead ends: 22021 [2021-07-09 16:18:05,925 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1911.4ms TimeCoverageRelationStatistics Valid=253, Invalid=1817, Unknown=0, NotChecked=0, Total=2070 [2021-07-09 16:18:05,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22021 states. [2021-07-09 16:18:06,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22021 to 19193. [2021-07-09 16:18:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19193 states, 19191 states have (on average 4.058204366630191) internal successors, (77881), 19192 states have internal predecessors, (77881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:06,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19193 states to 19193 states and 77881 transitions. [2021-07-09 16:18:06,452 INFO L78 Accepts]: Start accepts. Automaton has 19193 states and 77881 transitions. Word has length 74 [2021-07-09 16:18:06,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:06,452 INFO L482 AbstractCegarLoop]: Abstraction has 19193 states and 77881 transitions. [2021-07-09 16:18:06,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 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) [2021-07-09 16:18:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 19193 states and 77881 transitions. [2021-07-09 16:18:06,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:18:06,479 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:06,479 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:06,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-09 16:18:06,479 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:06,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:06,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1885361097, now seen corresponding path program 9 times [2021-07-09 16:18:06,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:06,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044653617] [2021-07-09 16:18:06,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:06,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:06,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044653617] [2021-07-09 16:18:06,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044653617] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:06,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:06,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:18:06,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037492022] [2021-07-09 16:18:06,787 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:18:06,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:06,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:18:06,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:18:06,788 INFO L87 Difference]: Start difference. First operand 19193 states and 77881 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 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) [2021-07-09 16:18:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:07,791 INFO L93 Difference]: Finished difference Result 22856 states and 90587 transitions. [2021-07-09 16:18:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:18:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 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 [2021-07-09 16:18:07,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:07,860 INFO L225 Difference]: With dead ends: 22856 [2021-07-09 16:18:07,860 INFO L226 Difference]: Without dead ends: 21992 [2021-07-09 16:18:07,860 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 540.2ms TimeCoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2021-07-09 16:18:07,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21992 states. [2021-07-09 16:18:08,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21992 to 19194. [2021-07-09 16:18:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19194 states, 19192 states have (on average 4.058045018757816) internal successors, (77882), 19193 states have internal predecessors, (77882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19194 states to 19194 states and 77882 transitions. [2021-07-09 16:18:08,497 INFO L78 Accepts]: Start accepts. Automaton has 19194 states and 77882 transitions. Word has length 74 [2021-07-09 16:18:08,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:08,498 INFO L482 AbstractCegarLoop]: Abstraction has 19194 states and 77882 transitions. [2021-07-09 16:18:08,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 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) [2021-07-09 16:18:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 19194 states and 77882 transitions. [2021-07-09 16:18:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:18:08,526 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:08,526 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:08,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-09 16:18:08,526 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:08,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:08,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1675812887, now seen corresponding path program 10 times [2021-07-09 16:18:08,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:08,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220280700] [2021-07-09 16:18:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:08,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:08,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220280700] [2021-07-09 16:18:08,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220280700] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:08,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:08,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:18:08,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326219622] [2021-07-09 16:18:08,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:18:08,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:08,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:18:08,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:18:08,811 INFO L87 Difference]: Start difference. First operand 19194 states and 77882 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 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) [2021-07-09 16:18:09,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:09,737 INFO L93 Difference]: Finished difference Result 22886 states and 90633 transitions. [2021-07-09 16:18:09,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-09 16:18:09,737 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 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 [2021-07-09 16:18:09,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:09,814 INFO L225 Difference]: With dead ends: 22886 [2021-07-09 16:18:09,814 INFO L226 Difference]: Without dead ends: 22022 [2021-07-09 16:18:09,814 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 458.9ms TimeCoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:18:09,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22022 states. [2021-07-09 16:18:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22022 to 19223. [2021-07-09 16:18:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19223 states, 19221 states have (on average 4.054263565891473) internal successors, (77927), 19222 states have internal predecessors, (77927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19223 states to 19223 states and 77927 transitions. [2021-07-09 16:18:10,485 INFO L78 Accepts]: Start accepts. Automaton has 19223 states and 77927 transitions. Word has length 74 [2021-07-09 16:18:10,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:10,486 INFO L482 AbstractCegarLoop]: Abstraction has 19223 states and 77927 transitions. [2021-07-09 16:18:10,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 15 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) [2021-07-09 16:18:10,486 INFO L276 IsEmpty]: Start isEmpty. Operand 19223 states and 77927 transitions. [2021-07-09 16:18:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 16:18:10,513 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:10,513 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:10,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-09 16:18:10,513 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:10,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1475525857, now seen corresponding path program 11 times [2021-07-09 16:18:10,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:10,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74646182] [2021-07-09 16:18:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:10,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:10,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74646182] [2021-07-09 16:18:10,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74646182] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:10,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:10,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:18:10,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625919021] [2021-07-09 16:18:10,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:18:10,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:10,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:18:10,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:18:10,794 INFO L87 Difference]: Start difference. First operand 19223 states and 77927 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 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) [2021-07-09 16:18:11,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:11,390 INFO L93 Difference]: Finished difference Result 21916 states and 86727 transitions. [2021-07-09 16:18:11,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-09 16:18:11,391 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 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 [2021-07-09 16:18:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:11,477 INFO L225 Difference]: With dead ends: 21916 [2021-07-09 16:18:11,478 INFO L226 Difference]: Without dead ends: 21052 [2021-07-09 16:18:11,478 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 331.5ms TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-07-09 16:18:11,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21052 states. [2021-07-09 16:18:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21052 to 18224. [2021-07-09 16:18:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18224 states, 18222 states have (on average 4.059708045220064) internal successors, (73976), 18223 states have internal predecessors, (73976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18224 states to 18224 states and 73976 transitions. [2021-07-09 16:18:12,086 INFO L78 Accepts]: Start accepts. Automaton has 18224 states and 73976 transitions. Word has length 74 [2021-07-09 16:18:12,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:12,087 INFO L482 AbstractCegarLoop]: Abstraction has 18224 states and 73976 transitions. [2021-07-09 16:18:12,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 12 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) [2021-07-09 16:18:12,087 INFO L276 IsEmpty]: Start isEmpty. Operand 18224 states and 73976 transitions. [2021-07-09 16:18:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-09 16:18:12,116 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:12,116 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:12,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-09 16:18:12,116 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:12,116 INFO L82 PathProgramCache]: Analyzing trace with hash 648309940, now seen corresponding path program 1 times [2021-07-09 16:18:12,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:12,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340839202] [2021-07-09 16:18:12,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:12,567 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-07-09 16:18:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:13,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:13,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340839202] [2021-07-09 16:18:13,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340839202] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:13,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:13,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-07-09 16:18:13,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586322256] [2021-07-09 16:18:13,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 16:18:13,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:13,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 16:18:13,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2021-07-09 16:18:13,124 INFO L87 Difference]: Start difference. First operand 18224 states and 73976 transitions. Second operand has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:15,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:15,066 INFO L93 Difference]: Finished difference Result 24080 states and 95177 transitions. [2021-07-09 16:18:15,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 16:18:15,066 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-07-09 16:18:15,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:15,138 INFO L225 Difference]: With dead ends: 24080 [2021-07-09 16:18:15,138 INFO L226 Difference]: Without dead ends: 23396 [2021-07-09 16:18:15,138 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1706.5ms TimeCoverageRelationStatistics Valid=258, Invalid=1998, Unknown=0, NotChecked=0, Total=2256 [2021-07-09 16:18:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23396 states. [2021-07-09 16:18:15,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23396 to 18224. [2021-07-09 16:18:15,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18224 states, 18222 states have (on average 4.059708045220064) internal successors, (73976), 18223 states have internal predecessors, (73976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18224 states to 18224 states and 73976 transitions. [2021-07-09 16:18:15,643 INFO L78 Accepts]: Start accepts. Automaton has 18224 states and 73976 transitions. Word has length 76 [2021-07-09 16:18:15,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:15,643 INFO L482 AbstractCegarLoop]: Abstraction has 18224 states and 73976 transitions. [2021-07-09 16:18:15,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.923076923076923) internal successors, (76), 26 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:15,643 INFO L276 IsEmpty]: Start isEmpty. Operand 18224 states and 73976 transitions. [2021-07-09 16:18:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-09 16:18:15,670 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:15,670 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:15,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-09 16:18:15,671 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:15,671 INFO L82 PathProgramCache]: Analyzing trace with hash -207428046, now seen corresponding path program 2 times [2021-07-09 16:18:15,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:15,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442902940] [2021-07-09 16:18:15,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:16,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:16,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:16,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442902940] [2021-07-09 16:18:16,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442902940] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:16,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:16,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-07-09 16:18:16,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549283922] [2021-07-09 16:18:16,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-09 16:18:16,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:16,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-09 16:18:16,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-07-09 16:18:16,452 INFO L87 Difference]: Start difference. First operand 18224 states and 73976 transitions. Second operand has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:18,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:18,133 INFO L93 Difference]: Finished difference Result 22030 states and 86807 transitions. [2021-07-09 16:18:18,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 16:18:18,134 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-07-09 16:18:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:18,200 INFO L225 Difference]: With dead ends: 22030 [2021-07-09 16:18:18,200 INFO L226 Difference]: Without dead ends: 21346 [2021-07-09 16:18:18,200 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1293.8ms TimeCoverageRelationStatistics Valid=203, Invalid=1603, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 16:18:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21346 states. [2021-07-09 16:18:18,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21346 to 16478. [2021-07-09 16:18:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16478 states, 16476 states have (on average 4.074471959213401) internal successors, (67131), 16477 states have internal predecessors, (67131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16478 states to 16478 states and 67131 transitions. [2021-07-09 16:18:18,635 INFO L78 Accepts]: Start accepts. Automaton has 16478 states and 67131 transitions. Word has length 76 [2021-07-09 16:18:18,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:18,635 INFO L482 AbstractCegarLoop]: Abstraction has 16478 states and 67131 transitions. [2021-07-09 16:18:18,636 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.1666666666666665) internal successors, (76), 24 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand 16478 states and 67131 transitions. [2021-07-09 16:18:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-09 16:18:18,758 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:18,759 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:18,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-09 16:18:18,759 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:18,759 INFO L82 PathProgramCache]: Analyzing trace with hash 712164980, now seen corresponding path program 3 times [2021-07-09 16:18:18,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:18,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42593218] [2021-07-09 16:18:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:19,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:19,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42593218] [2021-07-09 16:18:19,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42593218] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:19,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:19,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-07-09 16:18:19,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953496045] [2021-07-09 16:18:19,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-09 16:18:19,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:19,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-09 16:18:19,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-07-09 16:18:19,355 INFO L87 Difference]: Start difference. First operand 16478 states and 67131 transitions. Second operand has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:20,688 INFO L93 Difference]: Finished difference Result 21346 states and 84263 transitions. [2021-07-09 16:18:20,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-09 16:18:20,689 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-07-09 16:18:20,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:20,751 INFO L225 Difference]: With dead ends: 21346 [2021-07-09 16:18:20,751 INFO L226 Difference]: Without dead ends: 21004 [2021-07-09 16:18:20,751 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 929.5ms TimeCoverageRelationStatistics Valid=160, Invalid=1246, Unknown=0, NotChecked=0, Total=1406 [2021-07-09 16:18:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21004 states. [2021-07-09 16:18:21,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21004 to 16478. [2021-07-09 16:18:21,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16478 states, 16476 states have (on average 4.074471959213401) internal successors, (67131), 16477 states have internal predecessors, (67131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:21,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16478 states to 16478 states and 67131 transitions. [2021-07-09 16:18:21,162 INFO L78 Accepts]: Start accepts. Automaton has 16478 states and 67131 transitions. Word has length 76 [2021-07-09 16:18:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:21,162 INFO L482 AbstractCegarLoop]: Abstraction has 16478 states and 67131 transitions. [2021-07-09 16:18:21,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16478 states and 67131 transitions. [2021-07-09 16:18:21,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-07-09 16:18:21,292 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:21,293 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:21,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-09 16:18:21,293 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:21,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:21,293 INFO L82 PathProgramCache]: Analyzing trace with hash 896893274, now seen corresponding path program 4 times [2021-07-09 16:18:21,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:21,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072842800] [2021-07-09 16:18:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:21,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:21,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072842800] [2021-07-09 16:18:21,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072842800] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:21,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:21,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-07-09 16:18:21,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497148915] [2021-07-09 16:18:21,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:18:21,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:21,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:18:21,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:18:21,709 INFO L87 Difference]: Start difference. First operand 16478 states and 67131 transitions. Second operand has 20 states, 20 states have (on average 3.8) internal successors, (76), 20 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:22,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:22,950 INFO L93 Difference]: Finished difference Result 16265 states and 64818 transitions. [2021-07-09 16:18:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-09 16:18:22,951 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 20 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-07-09 16:18:22,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:23,008 INFO L225 Difference]: With dead ends: 16265 [2021-07-09 16:18:23,008 INFO L226 Difference]: Without dead ends: 15923 [2021-07-09 16:18:23,009 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 734.2ms TimeCoverageRelationStatistics Valid=139, Invalid=1051, Unknown=0, NotChecked=0, Total=1190 [2021-07-09 16:18:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15923 states. [2021-07-09 16:18:23,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15923 to 11363. [2021-07-09 16:18:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 11362 states have (on average 4.191867628938567) internal successors, (47628), 11362 states have internal predecessors, (47628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 47628 transitions. [2021-07-09 16:18:23,300 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 47628 transitions. Word has length 76 [2021-07-09 16:18:23,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:23,300 INFO L482 AbstractCegarLoop]: Abstraction has 11363 states and 47628 transitions. [2021-07-09 16:18:23,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.8) internal successors, (76), 20 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 47628 transitions. [2021-07-09 16:18:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-09 16:18:23,322 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:23,322 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:23,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-09 16:18:23,322 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:23,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1972739611, now seen corresponding path program 1 times [2021-07-09 16:18:23,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:23,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851783444] [2021-07-09 16:18:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:23,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:23,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:23,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851783444] [2021-07-09 16:18:23,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851783444] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:23,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:23,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:18:23,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833749856] [2021-07-09 16:18:23,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:18:23,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:23,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:18:23,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:18:23,575 INFO L87 Difference]: Start difference. First operand 11363 states and 47628 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:24,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:24,236 INFO L93 Difference]: Finished difference Result 11363 states and 47540 transitions. [2021-07-09 16:18:24,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:18:24,236 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-07-09 16:18:24,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:24,271 INFO L225 Difference]: With dead ends: 11363 [2021-07-09 16:18:24,271 INFO L226 Difference]: Without dead ends: 11363 [2021-07-09 16:18:24,272 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 420.8ms TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:18:24,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2021-07-09 16:18:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 11363. [2021-07-09 16:18:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11363 states, 11362 states have (on average 4.184122513641965) internal successors, (47540), 11362 states have internal predecessors, (47540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11363 states to 11363 states and 47540 transitions. [2021-07-09 16:18:24,516 INFO L78 Accepts]: Start accepts. Automaton has 11363 states and 47540 transitions. Word has length 110 [2021-07-09 16:18:24,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:24,516 INFO L482 AbstractCegarLoop]: Abstraction has 11363 states and 47540 transitions. [2021-07-09 16:18:24,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 11363 states and 47540 transitions. [2021-07-09 16:18:24,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-09 16:18:24,539 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:24,539 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:24,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-09 16:18:24,539 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:24,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:24,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1652489337, now seen corresponding path program 1 times [2021-07-09 16:18:24,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:24,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126077371] [2021-07-09 16:18:24,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:24,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:24,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126077371] [2021-07-09 16:18:24,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126077371] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:24,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:24,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-09 16:18:24,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305422070] [2021-07-09 16:18:24,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 16:18:24,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:24,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 16:18:24,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:18:24,773 INFO L87 Difference]: Start difference. First operand 11363 states and 47540 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:25,300 INFO L93 Difference]: Finished difference Result 11363 states and 47532 transitions. [2021-07-09 16:18:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:18:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-07-09 16:18:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:25,335 INFO L225 Difference]: With dead ends: 11363 [2021-07-09 16:18:25,335 INFO L226 Difference]: Without dead ends: 10883 [2021-07-09 16:18:25,336 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 364.4ms TimeCoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2021-07-09 16:18:25,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-07-09 16:18:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 10883. [2021-07-09 16:18:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10883 states, 10882 states have (on average 4.184892482999449) internal successors, (45540), 10882 states have internal predecessors, (45540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10883 states to 10883 states and 45540 transitions. [2021-07-09 16:18:25,559 INFO L78 Accepts]: Start accepts. Automaton has 10883 states and 45540 transitions. Word has length 110 [2021-07-09 16:18:25,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:25,559 INFO L482 AbstractCegarLoop]: Abstraction has 10883 states and 45540 transitions. [2021-07-09 16:18:25,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:25,559 INFO L276 IsEmpty]: Start isEmpty. Operand 10883 states and 45540 transitions. [2021-07-09 16:18:25,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-09 16:18:25,581 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:25,581 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:25,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-09 16:18:25,581 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:25,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:25,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2012056594, now seen corresponding path program 1 times [2021-07-09 16:18:25,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:25,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137107121] [2021-07-09 16:18:25,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:18:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:18:26,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:18:26,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137107121] [2021-07-09 16:18:26,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137107121] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:18:26,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:18:26,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-09 16:18:26,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978873606] [2021-07-09 16:18:26,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-09 16:18:26,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:18:26,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-09 16:18:26,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:18:26,011 INFO L87 Difference]: Start difference. First operand 10883 states and 45540 transitions. Second operand has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:18:26,695 INFO L93 Difference]: Finished difference Result 10883 states and 45164 transitions. [2021-07-09 16:18:26,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:18:26,695 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-07-09 16:18:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:18:26,722 INFO L225 Difference]: With dead ends: 10883 [2021-07-09 16:18:26,722 INFO L226 Difference]: Without dead ends: 8711 [2021-07-09 16:18:26,722 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 637.2ms TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2021-07-09 16:18:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8711 states. [2021-07-09 16:18:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8711 to 8711. [2021-07-09 16:18:26,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8711 states, 8710 states have (on average 4.128473019517796) internal successors, (35959), 8710 states have internal predecessors, (35959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 35959 transitions. [2021-07-09 16:18:26,896 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 35959 transitions. Word has length 110 [2021-07-09 16:18:26,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:18:26,897 INFO L482 AbstractCegarLoop]: Abstraction has 8711 states and 35959 transitions. [2021-07-09 16:18:26,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 17 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:18:26,897 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 35959 transitions. [2021-07-09 16:18:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-07-09 16:18:26,912 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:18:26,912 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:18:26,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-09 16:18:26,913 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:18:26,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:18:26,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1393320306, now seen corresponding path program 1 times [2021-07-09 16:18:26,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:18:26,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372675967] [2021-07-09 16:18:26,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:18:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:18:26,938 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:18:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:18:26,960 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:18:27,001 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-09 16:18:27,001 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-09 16:18:27,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-09 16:18:27,001 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2021-07-09 16:18:27,004 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:18:27,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:18:27 BasicIcfg [2021-07-09 16:18:27,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:18:27,149 INFO L168 Benchmark]: Toolchain (without parser) took 251727.79 ms. Allocated memory was 195.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 157.8 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 2.7 GB. Max. memory is 8.0 GB. [2021-07-09 16:18:27,149 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 195.0 MB. Free memory is still 176.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:18:27,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.91 ms. Allocated memory is still 195.0 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:18:27,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.43 ms. Allocated memory is still 195.0 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:18:27,149 INFO L168 Benchmark]: Boogie Preprocessor took 34.08 ms. Allocated memory is still 195.0 MB. Free memory was 153.7 MB in the beginning and 152.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:18:27,150 INFO L168 Benchmark]: RCFGBuilder took 552.35 ms. Allocated memory is still 195.0 MB. Free memory was 152.1 MB in the beginning and 122.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-07-09 16:18:27,150 INFO L168 Benchmark]: TraceAbstraction took 250498.98 ms. Allocated memory was 195.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 122.3 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 2.7 GB. Max. memory is 8.0 GB. [2021-07-09 16:18:27,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 195.0 MB. Free memory is still 176.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 596.91 ms. Allocated memory is still 195.0 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.43 ms. Allocated memory is still 195.0 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.08 ms. Allocated memory is still 195.0 MB. Free memory was 153.7 MB in the beginning and 152.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 552.35 ms. Allocated memory is still 195.0 MB. Free memory was 152.1 MB in the beginning and 122.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 250498.98 ms. Allocated memory was 195.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 122.3 MB in the beginning and 5.2 GB in the end (delta: -5.1 GB). Peak memory consumption was 2.7 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1123]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1124] 0 char *v; VAL [v={0:0}] [L1161] 0 pthread_t t; VAL [v={0:0}] [L1162] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [arg={0:0}, v={0:0}] [L1146] 1 pthread_t t1, t2, t3, t4, t5; VAL [arg={0:0}, arg={0:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={0:0}] [L1147] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, pthread_create(&t1, 0, thread1, 0)=-2147483647, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={0:0}] [L1148] 1 \read(t1) VAL [\read(t1)=-2147483647, arg={0:0}, arg={0:0}, arg={0:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={0:0}] [L1127] 2 v = malloc(sizeof(char)) VAL [\read(t1)=-2147483647, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1128] 2 return 0; VAL [\read(t1)=-2147483647, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1148] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\read(t1)=-2147483647, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1149] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t2, 0, thread2, 0)=-2147483646, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1150] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t3, 0, thread3, 0)=-2147483645, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1163] 0 \read(t) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t3, 0, thread3, 0)=-2147483645, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1151] FCALL, FORK 1 pthread_create(&t4, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t4, 0, thread2, 0)=-2147483644, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1133] 5 v[0] = 'X' VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t4, 0, thread2, 0)=-2147483644, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1135] 5 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t4, 0, thread2, 0)=-2147483644, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1152] FCALL, FORK 1 pthread_create(&t5, 0, thread2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t5, 0, thread2, 0)=-2147483643, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1133] 6 v[0] = 'X' VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, pthread_create(&t5, 0, thread2, 0)=-2147483643, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1135] 6 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1153] 1 \read(t2) VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1133] 3 v[0] = 'X' VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1135] 3 return 0; VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1153] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1140] 4 v[0] = 'Y' VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1142] 4 return 0; VAL [\read(t2)=-2147483646, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1154] 1 \read(t3) VAL [\read(t3)=-2147483645, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1154] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=-2147483645, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1155] 1 \read(t4) VAL [\read(t4)=-2147483644, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1155] FCALL, JOIN 5 pthread_join(t4, 0) VAL [\read(t4)=-2147483644, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1156] 1 \read(t5) VAL [\read(t5)=-2147483643, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1156] FCALL, JOIN 6 pthread_join(t5, 0) VAL [\read(t5)=-2147483643, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t1={9:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t2={10:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t3={11:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t4={13:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, t5={5:0}, v={3:0}] [L1157] 1 return 0; VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1163] FCALL, JOIN 1 pthread_join(t, 0) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1164] 0 v[0] VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1123] COND TRUE 0 !expression VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] [L1123] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char))={3:0}, v={3:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 11 procedures, 216 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 249957.8ms, OverallIterations: 61, TraceHistogramMax: 1, EmptinessCheckTime: 2828.3ms, AutomataDifference: 116417.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3374.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13739 SDtfs, 23700 SDslu, 128321 SDs, 0 SdLazy, 60301 SolverSat, 3152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32645.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2102 GetRequests, 133 SyntacticMatches, 169 SemanticMatches, 1800 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11444 ImplicationChecksByTransitivity, 49257.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70523occurred in iteration=0, InterpolantAutomatonStates: 1333, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 96255.9ms AutomataMinimizationTime, 60 MinimizatonAttempts, 379723 StatesRemovedByMinimization, 57 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 142.8ms SsaConstructionTime, 951.0ms SatisfiabilityAnalysisTime, 29203.9ms InterpolantComputationTime, 4255 NumberOfCodeBlocks, 4255 NumberOfCodeBlocksAsserted, 61 NumberOfCheckSat, 4085 ConstructedInterpolants, 0 QuantifiedInterpolants, 90109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 60 InterpolantComputations, 60 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...