/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 15:08:04,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 15:08:04,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 15:08:04,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 15:08:04,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 15:08:04,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 15:08:04,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 15:08:04,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 15:08:04,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 15:08:04,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 15:08:04,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 15:08:04,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 15:08:04,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 15:08:04,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 15:08:04,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 15:08:04,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 15:08:04,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 15:08:04,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 15:08:04,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 15:08:04,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 15:08:04,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 15:08:04,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 15:08:04,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 15:08:04,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 15:08:04,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 15:08:04,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 15:08:04,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 15:08:04,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 15:08:04,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 15:08:04,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 15:08:04,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 15:08:04,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 15:08:04,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 15:08:04,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 15:08:04,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 15:08:04,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 15:08:04,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 15:08:04,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 15:08:04,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 15:08:04,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 15:08:04,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 15:08:04,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 15:08:04,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 15:08:04,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 15:08:04,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 15:08:04,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 15:08:04,353 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 15:08:04,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 15:08:04,354 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 15:08:04,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 15:08:04,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 15:08:04,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 15:08:04,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 15:08:04,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 15:08:04,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 15:08:04,357 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 15:08:04,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 15:08:04,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 15:08:04,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 15:08:04,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 15:08:04,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 15:08:04,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 15:08:04,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 15:08:04,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 15:08:04,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 15:08:04,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 15:08:04,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 15:08:04,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 15:08:04,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 15:08:04,360 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 15:08:04,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 15:08:04,361 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 15:08:04,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 15:08:04,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 15:08:04,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 15:08:04,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 15:08:04,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 15:08:04,819 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 15:08:04,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-01-20 15:08:04,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae351723b/37220983bae1460db04211ed7f3633b7/FLAG004c3e83a [2021-01-20 15:08:05,791 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 15:08:05,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-01-20 15:08:05,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae351723b/37220983bae1460db04211ed7f3633b7/FLAG004c3e83a [2021-01-20 15:08:05,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae351723b/37220983bae1460db04211ed7f3633b7 [2021-01-20 15:08:05,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 15:08:05,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 15:08:05,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 15:08:05,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 15:08:06,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 15:08:06,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 03:08:05" (1/1) ... [2021-01-20 15:08:06,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d5e823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:06, skipping insertion in model container [2021-01-20 15:08:06,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 03:08:05" (1/1) ... [2021-01-20 15:08:06,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 15:08:06,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 15:08:06,275 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 15:08:07,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 15:08:07,032 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 15:08:07,045 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 15:08:07,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 15:08:07,576 INFO L208 MainTranslator]: Completed translation [2021-01-20 15:08:07,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07 WrapperNode [2021-01-20 15:08:07,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 15:08:07,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 15:08:07,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 15:08:07,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 15:08:07,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 15:08:07,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 15:08:07,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 15:08:07,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 15:08:07,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... [2021-01-20 15:08:07,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 15:08:07,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 15:08:07,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 15:08:07,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 15:08:07,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 15:08:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 15:08:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 15:08:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 15:08:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 15:08:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-20 15:08:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 15:08:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 15:08:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-01-20 15:08:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-01-20 15:08:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 15:08:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 15:08:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 15:08:07,846 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 15:08:08,600 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 15:08:08,601 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2021-01-20 15:08:08,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 03:08:08 BoogieIcfgContainer [2021-01-20 15:08:08,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 15:08:08,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 15:08:08,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 15:08:08,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 15:08:08,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 03:08:05" (1/3) ... [2021-01-20 15:08:08,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73006902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 03:08:08, skipping insertion in model container [2021-01-20 15:08:08,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:08:07" (2/3) ... [2021-01-20 15:08:08,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73006902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 03:08:08, skipping insertion in model container [2021-01-20 15:08:08,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 03:08:08" (3/3) ... [2021-01-20 15:08:08,613 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-01-20 15:08:08,628 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 15:08:08,629 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 15:08:08,633 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-01-20 15:08:08,634 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 15:08:08,673 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,674 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,675 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,675 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,675 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,675 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,676 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,678 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,679 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,680 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,680 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,681 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,681 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,682 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,683 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,683 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,683 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,684 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,685 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,685 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,686 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,687 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,688 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,689 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,689 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,689 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,689 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,690 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,691 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,691 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,691 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,692 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,692 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,692 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,692 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,693 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,693 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,693 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,693 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,694 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,694 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,698 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,698 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,698 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,698 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,707 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,707 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,707 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,707 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,708 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,708 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,708 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,708 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,709 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,709 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:08:08,722 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-20 15:08:08,737 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-01-20 15:08:08,763 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 15:08:08,763 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 15:08:08,763 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 15:08:08,763 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 15:08:08,764 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 15:08:08,764 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 15:08:08,764 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 15:08:08,764 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 15:08:08,782 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 170 places, 180 transitions, 382 flow [2021-01-20 15:08:09,050 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4764 states, 4753 states have (on average 2.7973911213970126) internal successors, (13296), 4763 states have internal predecessors, (13296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 4764 states, 4753 states have (on average 2.7973911213970126) internal successors, (13296), 4763 states have internal predecessors, (13296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:09,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 15:08:09,082 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:09,083 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:09,083 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:09,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:09,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1228399053, now seen corresponding path program 1 times [2021-01-20 15:08:09,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:09,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552589584] [2021-01-20 15:08:09,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:09,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:09,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552589584] [2021-01-20 15:08:09,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:09,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 15:08:09,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93175704] [2021-01-20 15:08:09,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 15:08:09,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:09,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 15:08:09,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 15:08:09,725 INFO L87 Difference]: Start difference. First operand has 4764 states, 4753 states have (on average 2.7973911213970126) internal successors, (13296), 4763 states have internal predecessors, (13296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:10,087 INFO L93 Difference]: Finished difference Result 4353 states and 11752 transitions. [2021-01-20 15:08:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 15:08:10,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-01-20 15:08:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:10,133 INFO L225 Difference]: With dead ends: 4353 [2021-01-20 15:08:10,133 INFO L226 Difference]: Without dead ends: 3636 [2021-01-20 15:08:10,135 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 15:08:10,135 INFO L78 Accepts]: Start accepts. Automaton has 3636 states. Word has length 38 [2021-01-20 15:08:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:10,137 INFO L481 AbstractCegarLoop]: Abstraction has 3636 states. [2021-01-20 15:08:10,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states. [2021-01-20 15:08:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 15:08:10,139 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:10,139 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:10,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 15:08:10,140 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:10,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:10,141 INFO L82 PathProgramCache]: Analyzing trace with hash -705470739, now seen corresponding path program 1 times [2021-01-20 15:08:10,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:10,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333625242] [2021-01-20 15:08:10,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:10,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:10,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333625242] [2021-01-20 15:08:10,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:10,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 15:08:10,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919057012] [2021-01-20 15:08:10,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 15:08:10,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:10,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 15:08:10,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 15:08:10,381 INFO L87 Difference]: Start difference. First operand 3636 states. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:10,666 INFO L93 Difference]: Finished difference Result 3635 states and 9774 transitions. [2021-01-20 15:08:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 15:08:10,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-01-20 15:08:10,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:10,690 INFO L225 Difference]: With dead ends: 3635 [2021-01-20 15:08:10,690 INFO L226 Difference]: Without dead ends: 3635 [2021-01-20 15:08:10,691 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-01-20 15:08:10,692 INFO L78 Accepts]: Start accepts. Automaton has 3635 states. Word has length 44 [2021-01-20 15:08:10,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:10,692 INFO L481 AbstractCegarLoop]: Abstraction has 3635 states. [2021-01-20 15:08:10,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:10,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states. [2021-01-20 15:08:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-20 15:08:10,697 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:10,698 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:10,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 15:08:10,698 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:10,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:10,699 INFO L82 PathProgramCache]: Analyzing trace with hash 65657062, now seen corresponding path program 1 times [2021-01-20 15:08:10,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:10,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268557636] [2021-01-20 15:08:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:10,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268557636] [2021-01-20 15:08:10,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:10,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 15:08:10,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071247251] [2021-01-20 15:08:10,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 15:08:10,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:10,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 15:08:10,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 15:08:10,899 INFO L87 Difference]: Start difference. First operand 3635 states. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:11,337 INFO L93 Difference]: Finished difference Result 5256 states and 14110 transitions. [2021-01-20 15:08:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 15:08:11,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-01-20 15:08:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:11,377 INFO L225 Difference]: With dead ends: 5256 [2021-01-20 15:08:11,377 INFO L226 Difference]: Without dead ends: 5256 [2021-01-20 15:08:11,378 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-01-20 15:08:11,378 INFO L78 Accepts]: Start accepts. Automaton has 5256 states. Word has length 62 [2021-01-20 15:08:11,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:11,379 INFO L481 AbstractCegarLoop]: Abstraction has 5256 states. [2021-01-20 15:08:11,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:11,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states. [2021-01-20 15:08:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-20 15:08:11,385 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:11,385 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:11,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 15:08:11,386 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:11,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:11,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1474072989, now seen corresponding path program 1 times [2021-01-20 15:08:11,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:11,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684205881] [2021-01-20 15:08:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:11,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:11,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684205881] [2021-01-20 15:08:11,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:11,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 15:08:11,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004478772] [2021-01-20 15:08:11,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 15:08:11,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:11,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 15:08:11,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 15:08:11,535 INFO L87 Difference]: Start difference. First operand 5256 states. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:11,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:11,916 INFO L93 Difference]: Finished difference Result 6332 states and 16876 transitions. [2021-01-20 15:08:11,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 15:08:11,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-01-20 15:08:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:11,974 INFO L225 Difference]: With dead ends: 6332 [2021-01-20 15:08:11,975 INFO L226 Difference]: Without dead ends: 5154 [2021-01-20 15:08:11,975 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-01-20 15:08:11,975 INFO L78 Accepts]: Start accepts. Automaton has 5154 states. Word has length 68 [2021-01-20 15:08:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:11,978 INFO L481 AbstractCegarLoop]: Abstraction has 5154 states. [2021-01-20 15:08:11,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states. [2021-01-20 15:08:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-01-20 15:08:11,988 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:11,989 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:11,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 15:08:11,989 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:11,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:11,991 INFO L82 PathProgramCache]: Analyzing trace with hash 158393697, now seen corresponding path program 1 times [2021-01-20 15:08:11,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:11,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482227203] [2021-01-20 15:08:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:12,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482227203] [2021-01-20 15:08:12,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:12,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 15:08:12,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774639071] [2021-01-20 15:08:12,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 15:08:12,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:12,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 15:08:12,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 15:08:12,241 INFO L87 Difference]: Start difference. First operand 5154 states. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:12,302 INFO L93 Difference]: Finished difference Result 1503 states and 3861 transitions. [2021-01-20 15:08:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 15:08:12,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-01-20 15:08:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:12,307 INFO L225 Difference]: With dead ends: 1503 [2021-01-20 15:08:12,308 INFO L226 Difference]: Without dead ends: 1503 [2021-01-20 15:08:12,308 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-20 15:08:12,308 INFO L78 Accepts]: Start accepts. Automaton has 1503 states. Word has length 74 [2021-01-20 15:08:12,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:12,309 INFO L481 AbstractCegarLoop]: Abstraction has 1503 states. [2021-01-20 15:08:12,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:12,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states. [2021-01-20 15:08:12,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:12,315 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:12,315 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:12,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 15:08:12,316 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:12,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:12,317 INFO L82 PathProgramCache]: Analyzing trace with hash 617397814, now seen corresponding path program 1 times [2021-01-20 15:08:12,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:12,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467683697] [2021-01-20 15:08:12,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:13,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467683697] [2021-01-20 15:08:13,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:13,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 15:08:13,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579028262] [2021-01-20 15:08:13,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 15:08:13,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:13,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 15:08:13,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-01-20 15:08:13,230 INFO L87 Difference]: Start difference. First operand 1503 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:14,386 INFO L93 Difference]: Finished difference Result 1922 states and 4763 transitions. [2021-01-20 15:08:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-20 15:08:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:14,393 INFO L225 Difference]: With dead ends: 1922 [2021-01-20 15:08:14,393 INFO L226 Difference]: Without dead ends: 1922 [2021-01-20 15:08:14,394 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2021-01-20 15:08:14,394 INFO L78 Accepts]: Start accepts. Automaton has 1922 states. Word has length 101 [2021-01-20 15:08:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:14,396 INFO L481 AbstractCegarLoop]: Abstraction has 1922 states. [2021-01-20 15:08:14,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states. [2021-01-20 15:08:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:14,415 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:14,415 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:14,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 15:08:14,416 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:14,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:14,417 INFO L82 PathProgramCache]: Analyzing trace with hash 468416544, now seen corresponding path program 2 times [2021-01-20 15:08:14,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:14,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010637348] [2021-01-20 15:08:14,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:15,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010637348] [2021-01-20 15:08:15,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:15,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 15:08:15,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110502947] [2021-01-20 15:08:15,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 15:08:15,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:15,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 15:08:15,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-01-20 15:08:15,219 INFO L87 Difference]: Start difference. First operand 1922 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:16,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:16,458 INFO L93 Difference]: Finished difference Result 2257 states and 5389 transitions. [2021-01-20 15:08:16,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 15:08:16,459 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:16,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:16,465 INFO L225 Difference]: With dead ends: 2257 [2021-01-20 15:08:16,465 INFO L226 Difference]: Without dead ends: 2257 [2021-01-20 15:08:16,470 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-01-20 15:08:16,470 INFO L78 Accepts]: Start accepts. Automaton has 2257 states. Word has length 101 [2021-01-20 15:08:16,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:16,472 INFO L481 AbstractCegarLoop]: Abstraction has 2257 states. [2021-01-20 15:08:16,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:16,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states. [2021-01-20 15:08:16,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:16,484 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:16,484 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:16,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 15:08:16,485 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:16,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:16,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1309949500, now seen corresponding path program 3 times [2021-01-20 15:08:16,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:16,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068826493] [2021-01-20 15:08:16,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:17,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068826493] [2021-01-20 15:08:17,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:17,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 15:08:17,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060806176] [2021-01-20 15:08:17,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 15:08:17,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:17,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 15:08:17,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-01-20 15:08:17,284 INFO L87 Difference]: Start difference. First operand 2257 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:18,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:18,623 INFO L93 Difference]: Finished difference Result 2617 states and 6073 transitions. [2021-01-20 15:08:18,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 15:08:18,624 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:18,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:18,631 INFO L225 Difference]: With dead ends: 2617 [2021-01-20 15:08:18,632 INFO L226 Difference]: Without dead ends: 2617 [2021-01-20 15:08:18,632 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-01-20 15:08:18,633 INFO L78 Accepts]: Start accepts. Automaton has 2617 states. Word has length 101 [2021-01-20 15:08:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:18,633 INFO L481 AbstractCegarLoop]: Abstraction has 2617 states. [2021-01-20 15:08:18,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:18,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states. [2021-01-20 15:08:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:18,641 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:18,641 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:18,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 15:08:18,641 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:18,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:18,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1042713406, now seen corresponding path program 4 times [2021-01-20 15:08:18,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:18,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765754149] [2021-01-20 15:08:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:19,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765754149] [2021-01-20 15:08:19,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:19,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 15:08:19,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765584653] [2021-01-20 15:08:19,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 15:08:19,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:19,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 15:08:19,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-01-20 15:08:19,270 INFO L87 Difference]: Start difference. First operand 2617 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:20,534 INFO L93 Difference]: Finished difference Result 2669 states and 6142 transitions. [2021-01-20 15:08:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-20 15:08:20,535 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:20,542 INFO L225 Difference]: With dead ends: 2669 [2021-01-20 15:08:20,542 INFO L226 Difference]: Without dead ends: 2669 [2021-01-20 15:08:20,543 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-01-20 15:08:20,543 INFO L78 Accepts]: Start accepts. Automaton has 2669 states. Word has length 101 [2021-01-20 15:08:20,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:20,544 INFO L481 AbstractCegarLoop]: Abstraction has 2669 states. [2021-01-20 15:08:20,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:20,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states. [2021-01-20 15:08:20,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:20,551 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:20,551 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:20,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 15:08:20,554 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:20,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:20,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1324672564, now seen corresponding path program 5 times [2021-01-20 15:08:20,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:20,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589225322] [2021-01-20 15:08:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:21,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589225322] [2021-01-20 15:08:21,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:21,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:21,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348936362] [2021-01-20 15:08:21,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:21,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:21,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:21,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:21,429 INFO L87 Difference]: Start difference. First operand 2669 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:22,290 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-01-20 15:08:22,484 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-20 15:08:22,896 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2021-01-20 15:08:23,232 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-20 15:08:23,416 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-20 15:08:23,582 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-20 15:08:23,805 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-20 15:08:23,976 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-01-20 15:08:23,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:23,989 INFO L93 Difference]: Finished difference Result 4248 states and 9587 transitions. [2021-01-20 15:08:23,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 15:08:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:23,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:24,002 INFO L225 Difference]: With dead ends: 4248 [2021-01-20 15:08:24,002 INFO L226 Difference]: Without dead ends: 4248 [2021-01-20 15:08:24,003 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-01-20 15:08:24,003 INFO L78 Accepts]: Start accepts. Automaton has 4248 states. Word has length 101 [2021-01-20 15:08:24,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:24,003 INFO L481 AbstractCegarLoop]: Abstraction has 4248 states. [2021-01-20 15:08:24,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4248 states. [2021-01-20 15:08:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:24,016 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:24,016 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:24,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 15:08:24,016 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:24,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:24,017 INFO L82 PathProgramCache]: Analyzing trace with hash 75702232, now seen corresponding path program 6 times [2021-01-20 15:08:24,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:24,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509417601] [2021-01-20 15:08:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:24,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509417601] [2021-01-20 15:08:24,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:24,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:24,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45615756] [2021-01-20 15:08:24,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:24,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:24,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:24,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:24,948 INFO L87 Difference]: Start difference. First operand 4248 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:25,771 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-01-20 15:08:25,973 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-01-20 15:08:26,367 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:08:26,567 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 15:08:26,926 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-20 15:08:27,109 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:08:27,267 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-20 15:08:27,443 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-20 15:08:27,589 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-01-20 15:08:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:27,596 INFO L93 Difference]: Finished difference Result 4280 states and 9617 transitions. [2021-01-20 15:08:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 15:08:27,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:27,607 INFO L225 Difference]: With dead ends: 4280 [2021-01-20 15:08:27,608 INFO L226 Difference]: Without dead ends: 4280 [2021-01-20 15:08:27,608 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-01-20 15:08:27,609 INFO L78 Accepts]: Start accepts. Automaton has 4280 states. Word has length 101 [2021-01-20 15:08:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:27,609 INFO L481 AbstractCegarLoop]: Abstraction has 4280 states. [2021-01-20 15:08:27,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states. [2021-01-20 15:08:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:27,618 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:27,619 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:27,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 15:08:27,619 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:27,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:27,620 INFO L82 PathProgramCache]: Analyzing trace with hash -261508592, now seen corresponding path program 7 times [2021-01-20 15:08:27,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:27,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392298040] [2021-01-20 15:08:27,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:28,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392298040] [2021-01-20 15:08:28,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:28,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:28,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535107453] [2021-01-20 15:08:28,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:28,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:28,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:28,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:28,551 INFO L87 Difference]: Start difference. First operand 4280 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:29,563 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-01-20 15:08:29,744 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 15:08:29,941 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 15:08:30,249 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2021-01-20 15:08:30,404 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-01-20 15:08:30,561 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2021-01-20 15:08:30,805 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-01-20 15:08:30,965 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-01-20 15:08:31,117 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2021-01-20 15:08:31,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:31,129 INFO L93 Difference]: Finished difference Result 4312 states and 9647 transitions. [2021-01-20 15:08:31,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:08:31,130 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:31,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:31,141 INFO L225 Difference]: With dead ends: 4312 [2021-01-20 15:08:31,141 INFO L226 Difference]: Without dead ends: 4312 [2021-01-20 15:08:31,142 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:08:31,142 INFO L78 Accepts]: Start accepts. Automaton has 4312 states. Word has length 101 [2021-01-20 15:08:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:31,142 INFO L481 AbstractCegarLoop]: Abstraction has 4312 states. [2021-01-20 15:08:31,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states. [2021-01-20 15:08:31,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:31,151 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:31,152 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:31,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 15:08:31,152 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:31,153 INFO L82 PathProgramCache]: Analyzing trace with hash -458904232, now seen corresponding path program 8 times [2021-01-20 15:08:31,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:31,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350378349] [2021-01-20 15:08:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:32,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350378349] [2021-01-20 15:08:32,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:32,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:32,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914853646] [2021-01-20 15:08:32,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:32,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:32,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:32,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:32,045 INFO L87 Difference]: Start difference. First operand 4312 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:32,827 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-01-20 15:08:32,997 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 15:08:33,187 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 15:08:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:33,894 INFO L93 Difference]: Finished difference Result 5239 states and 11354 transitions. [2021-01-20 15:08:33,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:08:33,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:33,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:33,906 INFO L225 Difference]: With dead ends: 5239 [2021-01-20 15:08:33,907 INFO L226 Difference]: Without dead ends: 5239 [2021-01-20 15:08:33,907 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:08:33,907 INFO L78 Accepts]: Start accepts. Automaton has 5239 states. Word has length 101 [2021-01-20 15:08:33,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:33,908 INFO L481 AbstractCegarLoop]: Abstraction has 5239 states. [2021-01-20 15:08:33,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:33,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states. [2021-01-20 15:08:33,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:33,919 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:33,919 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:33,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-20 15:08:33,919 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:33,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:33,920 INFO L82 PathProgramCache]: Analyzing trace with hash -896833866, now seen corresponding path program 9 times [2021-01-20 15:08:33,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:33,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290382440] [2021-01-20 15:08:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:34,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290382440] [2021-01-20 15:08:34,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:34,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:34,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744534621] [2021-01-20 15:08:34,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:34,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:34,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:34,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:34,772 INFO L87 Difference]: Start difference. First operand 5239 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:35,528 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-01-20 15:08:35,729 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 15:08:35,945 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-20 15:08:36,370 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-01-20 15:08:36,738 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:08:36,916 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-01-20 15:08:37,069 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:08:37,241 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 15:08:37,399 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:08:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:37,409 INFO L93 Difference]: Finished difference Result 8862 states and 19210 transitions. [2021-01-20 15:08:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 15:08:37,410 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:37,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:37,425 INFO L225 Difference]: With dead ends: 8862 [2021-01-20 15:08:37,425 INFO L226 Difference]: Without dead ends: 8862 [2021-01-20 15:08:37,426 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-01-20 15:08:37,426 INFO L78 Accepts]: Start accepts. Automaton has 8862 states. Word has length 101 [2021-01-20 15:08:37,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:37,426 INFO L481 AbstractCegarLoop]: Abstraction has 8862 states. [2021-01-20 15:08:37,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:37,427 INFO L276 IsEmpty]: Start isEmpty. Operand 8862 states. [2021-01-20 15:08:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:37,444 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:37,444 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:37,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-20 15:08:37,445 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:37,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2145804198, now seen corresponding path program 10 times [2021-01-20 15:08:37,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:37,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832174154] [2021-01-20 15:08:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:38,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832174154] [2021-01-20 15:08:38,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:38,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:38,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700781248] [2021-01-20 15:08:38,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:38,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:38,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:38,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:38,311 INFO L87 Difference]: Start difference. First operand 8862 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:39,140 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 15:08:39,325 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-20 15:08:39,707 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:08:39,877 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 15:08:40,257 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:08:40,433 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-01-20 15:08:40,586 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:08:40,774 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:08:40,930 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 15:08:40,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:40,945 INFO L93 Difference]: Finished difference Result 8894 states and 19240 transitions. [2021-01-20 15:08:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 15:08:40,946 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:40,958 INFO L225 Difference]: With dead ends: 8894 [2021-01-20 15:08:40,958 INFO L226 Difference]: Without dead ends: 8894 [2021-01-20 15:08:40,959 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-01-20 15:08:40,959 INFO L78 Accepts]: Start accepts. Automaton has 8894 states. Word has length 101 [2021-01-20 15:08:40,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:40,960 INFO L481 AbstractCegarLoop]: Abstraction has 8894 states. [2021-01-20 15:08:40,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8894 states. [2021-01-20 15:08:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:40,977 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:40,977 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:40,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-20 15:08:40,978 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:40,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:40,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1811952274, now seen corresponding path program 11 times [2021-01-20 15:08:40,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:40,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715843268] [2021-01-20 15:08:40,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:41,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:41,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715843268] [2021-01-20 15:08:41,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:41,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:41,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117398267] [2021-01-20 15:08:41,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:41,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:41,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:41,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:41,894 INFO L87 Difference]: Start difference. First operand 8894 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:42,881 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:08:43,058 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:08:43,252 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-01-20 15:08:43,722 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-20 15:08:43,880 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-01-20 15:08:44,126 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-20 15:08:44,293 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-01-20 15:08:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:44,461 INFO L93 Difference]: Finished difference Result 8978 states and 19319 transitions. [2021-01-20 15:08:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:08:44,462 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:44,470 INFO L225 Difference]: With dead ends: 8978 [2021-01-20 15:08:44,471 INFO L226 Difference]: Without dead ends: 8978 [2021-01-20 15:08:44,471 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:08:44,472 INFO L78 Accepts]: Start accepts. Automaton has 8978 states. Word has length 101 [2021-01-20 15:08:44,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:44,472 INFO L481 AbstractCegarLoop]: Abstraction has 8978 states. [2021-01-20 15:08:44,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:44,472 INFO L276 IsEmpty]: Start isEmpty. Operand 8978 states. [2021-01-20 15:08:44,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:44,489 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:44,489 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:44,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-20 15:08:44,489 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:44,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:44,490 INFO L82 PathProgramCache]: Analyzing trace with hash -469674682, now seen corresponding path program 12 times [2021-01-20 15:08:44,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:44,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692339443] [2021-01-20 15:08:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:45,266 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2021-01-20 15:08:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:45,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692339443] [2021-01-20 15:08:45,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:45,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:45,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953386261] [2021-01-20 15:08:45,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:45,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:45,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:45,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:45,426 INFO L87 Difference]: Start difference. First operand 8978 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:46,361 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:46,547 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:08:46,952 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-01-20 15:08:47,127 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-20 15:08:47,521 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:08:47,691 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:08:47,847 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:08:48,012 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 15:08:48,136 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:08:48,287 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:08:48,449 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:08:48,610 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:08:48,814 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:08:48,965 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:08:48,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:48,978 INFO L93 Difference]: Finished difference Result 9158 states and 19619 transitions. [2021-01-20 15:08:48,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:08:48,979 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:48,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:48,987 INFO L225 Difference]: With dead ends: 9158 [2021-01-20 15:08:48,988 INFO L226 Difference]: Without dead ends: 9158 [2021-01-20 15:08:48,988 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2021-01-20 15:08:48,988 INFO L78 Accepts]: Start accepts. Automaton has 9158 states. Word has length 101 [2021-01-20 15:08:48,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:48,989 INFO L481 AbstractCegarLoop]: Abstraction has 9158 states. [2021-01-20 15:08:48,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:48,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9158 states. [2021-01-20 15:08:49,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:49,007 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:49,007 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:49,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-20 15:08:49,008 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:49,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:49,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1718645014, now seen corresponding path program 13 times [2021-01-20 15:08:49,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:49,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439795737] [2021-01-20 15:08:49,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:49,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439795737] [2021-01-20 15:08:49,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:49,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:49,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327723464] [2021-01-20 15:08:49,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:49,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:49,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:49,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:49,851 INFO L87 Difference]: Start difference. First operand 9158 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:50,560 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-01-20 15:08:50,723 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:08:50,865 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-01-20 15:08:51,057 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 15:08:51,488 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:08:51,781 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:08:52,217 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:08:52,393 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:08:52,548 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:08:52,728 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 15:08:52,876 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:08:53,092 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:08:53,260 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-01-20 15:08:53,430 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 15:08:53,575 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-20 15:08:53,715 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-01-20 15:08:53,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:53,728 INFO L93 Difference]: Finished difference Result 9154 states and 19615 transitions. [2021-01-20 15:08:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:08:53,729 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:53,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:53,735 INFO L225 Difference]: With dead ends: 9154 [2021-01-20 15:08:53,736 INFO L226 Difference]: Without dead ends: 9154 [2021-01-20 15:08:53,736 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-01-20 15:08:53,736 INFO L78 Accepts]: Start accepts. Automaton has 9154 states. Word has length 101 [2021-01-20 15:08:53,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:53,737 INFO L481 AbstractCegarLoop]: Abstraction has 9154 states. [2021-01-20 15:08:53,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 9154 states. [2021-01-20 15:08:53,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:53,745 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:53,745 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:53,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-20 15:08:53,745 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:53,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:53,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1552999138, now seen corresponding path program 14 times [2021-01-20 15:08:53,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:53,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814807937] [2021-01-20 15:08:53,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:54,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:54,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814807937] [2021-01-20 15:08:54,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:54,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:54,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985411409] [2021-01-20 15:08:54,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:54,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:54,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:54,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:54,660 INFO L87 Difference]: Start difference. First operand 9154 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:55,501 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2021-01-20 15:08:55,848 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-20 15:08:55,991 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:08:56,146 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:08:56,327 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:08:56,758 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-20 15:08:56,923 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-01-20 15:08:57,145 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-20 15:08:57,415 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:08:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:57,561 INFO L93 Difference]: Finished difference Result 9186 states and 19645 transitions. [2021-01-20 15:08:57,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 15:08:57,562 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:08:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:57,570 INFO L225 Difference]: With dead ends: 9186 [2021-01-20 15:08:57,570 INFO L226 Difference]: Without dead ends: 9186 [2021-01-20 15:08:57,570 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:08:57,571 INFO L78 Accepts]: Start accepts. Automaton has 9186 states. Word has length 101 [2021-01-20 15:08:57,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:57,571 INFO L481 AbstractCegarLoop]: Abstraction has 9186 states. [2021-01-20 15:08:57,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states. [2021-01-20 15:08:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:08:57,580 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:57,580 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:08:57,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-20 15:08:57,580 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:57,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:57,581 INFO L82 PathProgramCache]: Analyzing trace with hash 153705882, now seen corresponding path program 15 times [2021-01-20 15:08:57,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:57,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531045504] [2021-01-20 15:08:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:58,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531045504] [2021-01-20 15:08:58,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:58,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:58,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843284473] [2021-01-20 15:08:58,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:58,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:58,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:58,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:58,498 INFO L87 Difference]: Start difference. First operand 9186 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:59,415 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:08:59,607 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:08:59,807 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 15:09:00,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:00,903 INFO L93 Difference]: Finished difference Result 9254 states and 19709 transitions. [2021-01-20 15:09:00,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:09:00,904 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:00,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:00,913 INFO L225 Difference]: With dead ends: 9254 [2021-01-20 15:09:00,913 INFO L226 Difference]: Without dead ends: 9254 [2021-01-20 15:09:00,913 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:09:00,914 INFO L78 Accepts]: Start accepts. Automaton has 9254 states. Word has length 101 [2021-01-20 15:09:00,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:00,914 INFO L481 AbstractCegarLoop]: Abstraction has 9254 states. [2021-01-20 15:09:00,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:00,914 INFO L276 IsEmpty]: Start isEmpty. Operand 9254 states. [2021-01-20 15:09:00,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:00,925 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:00,926 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:00,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-20 15:09:00,926 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:00,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:00,926 INFO L82 PathProgramCache]: Analyzing trace with hash -891827990, now seen corresponding path program 16 times [2021-01-20 15:09:00,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:00,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701237514] [2021-01-20 15:09:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:01,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:01,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701237514] [2021-01-20 15:09:01,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:01,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:01,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113678249] [2021-01-20 15:09:01,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:01,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:01,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:01,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:01,787 INFO L87 Difference]: Start difference. First operand 9254 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:02,721 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-20 15:09:02,896 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:09:03,047 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:09:03,244 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:09:03,903 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-01-20 15:09:04,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:04,396 INFO L93 Difference]: Finished difference Result 9250 states and 19705 transitions. [2021-01-20 15:09:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 15:09:04,397 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:04,407 INFO L225 Difference]: With dead ends: 9250 [2021-01-20 15:09:04,407 INFO L226 Difference]: Without dead ends: 9250 [2021-01-20 15:09:04,408 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:09:04,408 INFO L78 Accepts]: Start accepts. Automaton has 9250 states. Word has length 101 [2021-01-20 15:09:04,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:04,408 INFO L481 AbstractCegarLoop]: Abstraction has 9250 states. [2021-01-20 15:09:04,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 9250 states. [2021-01-20 15:09:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:04,421 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:04,421 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:04,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-20 15:09:04,421 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:04,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:04,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1992507712, now seen corresponding path program 17 times [2021-01-20 15:09:04,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:04,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430861561] [2021-01-20 15:09:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:05,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430861561] [2021-01-20 15:09:05,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:05,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:05,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22711274] [2021-01-20 15:09:05,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:05,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:05,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:05,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:05,404 INFO L87 Difference]: Start difference. First operand 9250 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:06,446 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-01-20 15:09:06,655 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 15:09:06,865 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 15:09:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:07,643 INFO L93 Difference]: Finished difference Result 10768 states and 22536 transitions. [2021-01-20 15:09:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:09:07,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:07,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:07,655 INFO L225 Difference]: With dead ends: 10768 [2021-01-20 15:09:07,655 INFO L226 Difference]: Without dead ends: 10768 [2021-01-20 15:09:07,656 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:09:07,656 INFO L78 Accepts]: Start accepts. Automaton has 10768 states. Word has length 101 [2021-01-20 15:09:07,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:07,656 INFO L481 AbstractCegarLoop]: Abstraction has 10768 states. [2021-01-20 15:09:07,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:07,656 INFO L276 IsEmpty]: Start isEmpty. Operand 10768 states. [2021-01-20 15:09:07,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:07,668 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:07,668 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:07,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-20 15:09:07,668 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:07,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:07,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1636081134, now seen corresponding path program 18 times [2021-01-20 15:09:07,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:07,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108648472] [2021-01-20 15:09:07,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:08,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108648472] [2021-01-20 15:09:08,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:08,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:08,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518301498] [2021-01-20 15:09:08,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:08,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:08,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:08,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:08,543 INFO L87 Difference]: Start difference. First operand 10768 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:09,380 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:09:09,576 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:09:09,779 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 15:09:10,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:10,601 INFO L93 Difference]: Finished difference Result 10800 states and 22566 transitions. [2021-01-20 15:09:10,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:09:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:10,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:10,611 INFO L225 Difference]: With dead ends: 10800 [2021-01-20 15:09:10,611 INFO L226 Difference]: Without dead ends: 10800 [2021-01-20 15:09:10,612 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:09:10,612 INFO L78 Accepts]: Start accepts. Automaton has 10800 states. Word has length 101 [2021-01-20 15:09:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:10,612 INFO L481 AbstractCegarLoop]: Abstraction has 10800 states. [2021-01-20 15:09:10,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 10800 states. [2021-01-20 15:09:10,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:10,625 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:10,625 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:10,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-20 15:09:10,626 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:10,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:10,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1695111006, now seen corresponding path program 19 times [2021-01-20 15:09:10,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:10,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817214340] [2021-01-20 15:09:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:11,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817214340] [2021-01-20 15:09:11,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:11,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:11,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697109861] [2021-01-20 15:09:11,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:11,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:11,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:11,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:11,439 INFO L87 Difference]: Start difference. First operand 10800 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:12,416 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-20 15:09:12,595 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:09:12,746 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:09:12,957 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:09:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:13,807 INFO L93 Difference]: Finished difference Result 10796 states and 22562 transitions. [2021-01-20 15:09:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 15:09:13,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:13,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:13,818 INFO L225 Difference]: With dead ends: 10796 [2021-01-20 15:09:13,818 INFO L226 Difference]: Without dead ends: 10796 [2021-01-20 15:09:13,819 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:09:13,819 INFO L78 Accepts]: Start accepts. Automaton has 10796 states. Word has length 101 [2021-01-20 15:09:13,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:13,820 INFO L481 AbstractCegarLoop]: Abstraction has 10796 states. [2021-01-20 15:09:13,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:13,820 INFO L276 IsEmpty]: Start isEmpty. Operand 10796 states. [2021-01-20 15:09:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:13,831 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:13,831 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:13,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-20 15:09:13,832 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:13,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:13,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1215254476, now seen corresponding path program 20 times [2021-01-20 15:09:13,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:13,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529840021] [2021-01-20 15:09:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:14,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529840021] [2021-01-20 15:09:14,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:14,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:14,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128214250] [2021-01-20 15:09:14,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:14,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:14,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:14,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:14,690 INFO L87 Difference]: Start difference. First operand 10796 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:15,589 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 15:09:15,789 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-20 15:09:16,215 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-01-20 15:09:16,565 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:09:16,715 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-01-20 15:09:16,843 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:09:17,020 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 15:09:17,180 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:09:17,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:17,191 INFO L93 Difference]: Finished difference Result 12506 states and 26184 transitions. [2021-01-20 15:09:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 15:09:17,192 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:17,210 INFO L225 Difference]: With dead ends: 12506 [2021-01-20 15:09:17,210 INFO L226 Difference]: Without dead ends: 12506 [2021-01-20 15:09:17,211 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-01-20 15:09:17,211 INFO L78 Accepts]: Start accepts. Automaton has 12506 states. Word has length 101 [2021-01-20 15:09:17,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:17,211 INFO L481 AbstractCegarLoop]: Abstraction has 12506 states. [2021-01-20 15:09:17,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:17,212 INFO L276 IsEmpty]: Start isEmpty. Operand 12506 states. [2021-01-20 15:09:17,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:17,226 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:17,226 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:17,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-20 15:09:17,226 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:17,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:17,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1830742488, now seen corresponding path program 21 times [2021-01-20 15:09:17,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:17,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469471771] [2021-01-20 15:09:17,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:18,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469471771] [2021-01-20 15:09:18,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:18,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:18,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926513068] [2021-01-20 15:09:18,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:18,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:18,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:18,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:18,054 INFO L87 Difference]: Start difference. First operand 12506 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:19,008 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 15:09:19,220 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-20 15:09:19,761 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:09:19,937 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 15:09:20,373 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:09:20,537 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-01-20 15:09:20,694 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:09:20,880 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:09:21,044 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 15:09:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:21,055 INFO L93 Difference]: Finished difference Result 12538 states and 26214 transitions. [2021-01-20 15:09:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 15:09:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:21,069 INFO L225 Difference]: With dead ends: 12538 [2021-01-20 15:09:21,069 INFO L226 Difference]: Without dead ends: 12538 [2021-01-20 15:09:21,069 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-01-20 15:09:21,069 INFO L78 Accepts]: Start accepts. Automaton has 12538 states. Word has length 101 [2021-01-20 15:09:21,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:21,070 INFO L481 AbstractCegarLoop]: Abstraction has 12538 states. [2021-01-20 15:09:21,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states. [2021-01-20 15:09:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:21,084 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:21,084 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:21,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-20 15:09:21,084 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:21,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:21,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1493531664, now seen corresponding path program 22 times [2021-01-20 15:09:21,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:21,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243905646] [2021-01-20 15:09:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:21,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243905646] [2021-01-20 15:09:21,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:21,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:21,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137022577] [2021-01-20 15:09:21,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:21,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:21,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:21,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:21,943 INFO L87 Difference]: Start difference. First operand 12538 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:22,950 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:09:23,130 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:09:23,327 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-01-20 15:09:23,670 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-01-20 15:09:23,830 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-20 15:09:23,989 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-01-20 15:09:24,239 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-20 15:09:24,407 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2021-01-20 15:09:24,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:24,580 INFO L93 Difference]: Finished difference Result 12534 states and 26210 transitions. [2021-01-20 15:09:24,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:09:24,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:24,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:24,694 INFO L225 Difference]: With dead ends: 12534 [2021-01-20 15:09:24,694 INFO L226 Difference]: Without dead ends: 12534 [2021-01-20 15:09:24,694 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:09:24,694 INFO L78 Accepts]: Start accepts. Automaton has 12534 states. Word has length 101 [2021-01-20 15:09:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:24,695 INFO L481 AbstractCegarLoop]: Abstraction has 12534 states. [2021-01-20 15:09:24,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 12534 states. [2021-01-20 15:09:24,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:24,707 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:24,708 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:24,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-20 15:09:24,710 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:24,710 INFO L82 PathProgramCache]: Analyzing trace with hash -788095292, now seen corresponding path program 23 times [2021-01-20 15:09:24,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:24,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379654722] [2021-01-20 15:09:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:25,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379654722] [2021-01-20 15:09:25,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:25,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:25,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556753275] [2021-01-20 15:09:25,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:25,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:25,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:25,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:25,561 INFO L87 Difference]: Start difference. First operand 12534 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:26,362 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2021-01-20 15:09:26,528 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:09:26,667 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:26,861 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:09:27,260 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-01-20 15:09:27,438 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-20 15:09:27,880 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:09:28,049 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:28,203 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:09:28,384 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 15:09:28,515 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:09:28,672 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:28,839 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:09:29,008 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:09:29,160 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:09:29,306 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:09:29,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:29,321 INFO L93 Difference]: Finished difference Result 14511 states and 30415 transitions. [2021-01-20 15:09:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:09:29,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:29,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:29,335 INFO L225 Difference]: With dead ends: 14511 [2021-01-20 15:09:29,335 INFO L226 Difference]: Without dead ends: 14511 [2021-01-20 15:09:29,336 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2021-01-20 15:09:29,336 INFO L78 Accepts]: Start accepts. Automaton has 14511 states. Word has length 101 [2021-01-20 15:09:29,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:29,336 INFO L481 AbstractCegarLoop]: Abstraction has 14511 states. [2021-01-20 15:09:29,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:29,336 INFO L276 IsEmpty]: Start isEmpty. Operand 14511 states. [2021-01-20 15:09:29,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:29,349 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:29,349 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:29,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-20 15:09:29,350 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:29,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:29,350 INFO L82 PathProgramCache]: Analyzing trace with hash -2037065624, now seen corresponding path program 24 times [2021-01-20 15:09:29,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:29,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333239346] [2021-01-20 15:09:29,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:30,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:30,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333239346] [2021-01-20 15:09:30,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:30,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:30,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428351513] [2021-01-20 15:09:30,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:30,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:30,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:30,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:30,219 INFO L87 Difference]: Start difference. First operand 14511 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:30,428 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-20 15:09:31,199 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:09:31,339 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-01-20 15:09:31,539 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 15:09:31,984 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:09:32,133 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:09:32,310 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:09:32,794 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:09:32,966 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:09:33,126 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:09:33,306 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 15:09:33,590 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:09:33,763 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-01-20 15:09:33,932 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 15:09:34,082 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-20 15:09:34,227 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-01-20 15:09:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:34,246 INFO L93 Difference]: Finished difference Result 14543 states and 30445 transitions. [2021-01-20 15:09:34,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:09:34,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:34,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:34,260 INFO L225 Difference]: With dead ends: 14543 [2021-01-20 15:09:34,260 INFO L226 Difference]: Without dead ends: 14543 [2021-01-20 15:09:34,261 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-01-20 15:09:34,261 INFO L78 Accepts]: Start accepts. Automaton has 14543 states. Word has length 101 [2021-01-20 15:09:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:34,262 INFO L481 AbstractCegarLoop]: Abstraction has 14543 states. [2021-01-20 15:09:34,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 14543 states. [2021-01-20 15:09:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:34,275 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:34,276 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:34,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-20 15:09:34,276 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:34,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1234578528, now seen corresponding path program 25 times [2021-01-20 15:09:34,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:34,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637453182] [2021-01-20 15:09:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:35,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637453182] [2021-01-20 15:09:35,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:35,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:35,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407419638] [2021-01-20 15:09:35,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:35,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:35,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:35,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:35,181 INFO L87 Difference]: Start difference. First operand 14543 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:36,010 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2021-01-20 15:09:36,344 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-20 15:09:36,497 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:09:36,776 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:09:36,963 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:37,405 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-20 15:09:37,564 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-01-20 15:09:37,703 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-20 15:09:37,977 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:09:38,120 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2021-01-20 15:09:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:38,131 INFO L93 Difference]: Finished difference Result 14575 states and 30475 transitions. [2021-01-20 15:09:38,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 15:09:38,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:38,145 INFO L225 Difference]: With dead ends: 14575 [2021-01-20 15:09:38,145 INFO L226 Difference]: Without dead ends: 14575 [2021-01-20 15:09:38,146 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:09:38,146 INFO L78 Accepts]: Start accepts. Automaton has 14575 states. Word has length 101 [2021-01-20 15:09:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:38,146 INFO L481 AbstractCegarLoop]: Abstraction has 14575 states. [2021-01-20 15:09:38,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 14575 states. [2021-01-20 15:09:38,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:38,159 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:38,159 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:38,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-20 15:09:38,160 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:38,160 INFO L82 PathProgramCache]: Analyzing trace with hash -164714728, now seen corresponding path program 26 times [2021-01-20 15:09:38,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:38,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76117082] [2021-01-20 15:09:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:39,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76117082] [2021-01-20 15:09:39,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:39,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:39,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067999332] [2021-01-20 15:09:39,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:39,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:39,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:39,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:39,104 INFO L87 Difference]: Start difference. First operand 14575 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:40,102 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:09:40,309 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:09:40,519 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 15:09:41,179 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-01-20 15:09:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:41,693 INFO L93 Difference]: Finished difference Result 14607 states and 30505 transitions. [2021-01-20 15:09:41,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:09:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:41,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:41,708 INFO L225 Difference]: With dead ends: 14607 [2021-01-20 15:09:41,709 INFO L226 Difference]: Without dead ends: 14607 [2021-01-20 15:09:41,709 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:09:41,709 INFO L78 Accepts]: Start accepts. Automaton has 14607 states. Word has length 101 [2021-01-20 15:09:41,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:41,710 INFO L481 AbstractCegarLoop]: Abstraction has 14607 states. [2021-01-20 15:09:41,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:41,710 INFO L276 IsEmpty]: Start isEmpty. Operand 14607 states. [2021-01-20 15:09:41,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:41,722 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:41,723 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:41,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-20 15:09:41,723 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:41,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:41,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1210248600, now seen corresponding path program 27 times [2021-01-20 15:09:41,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:41,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661495254] [2021-01-20 15:09:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:42,425 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 27 [2021-01-20 15:09:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:42,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661495254] [2021-01-20 15:09:42,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:42,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:42,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393502460] [2021-01-20 15:09:42,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:42,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:42,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:42,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:42,661 INFO L87 Difference]: Start difference. First operand 14607 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:43,613 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-20 15:09:43,785 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:09:43,949 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:09:44,141 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:09:44,831 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-01-20 15:09:45,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:45,348 INFO L93 Difference]: Finished difference Result 14603 states and 30501 transitions. [2021-01-20 15:09:45,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 15:09:45,348 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:45,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:45,362 INFO L225 Difference]: With dead ends: 14603 [2021-01-20 15:09:45,363 INFO L226 Difference]: Without dead ends: 14603 [2021-01-20 15:09:45,363 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:09:45,363 INFO L78 Accepts]: Start accepts. Automaton has 14603 states. Word has length 101 [2021-01-20 15:09:45,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:45,364 INFO L481 AbstractCegarLoop]: Abstraction has 14603 states. [2021-01-20 15:09:45,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:45,364 INFO L276 IsEmpty]: Start isEmpty. Operand 14603 states. [2021-01-20 15:09:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:45,377 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:45,378 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:45,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-20 15:09:45,378 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:45,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:45,378 INFO L82 PathProgramCache]: Analyzing trace with hash 2041866480, now seen corresponding path program 28 times [2021-01-20 15:09:45,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:45,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199914878] [2021-01-20 15:09:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:46,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199914878] [2021-01-20 15:09:46,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:46,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:46,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692530716] [2021-01-20 15:09:46,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:46,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:46,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:46,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:46,170 INFO L87 Difference]: Start difference. First operand 14603 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:47,042 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-01-20 15:09:47,224 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:09:47,364 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:47,565 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:09:47,927 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2021-01-20 15:09:48,142 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 15:09:48,334 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 15:09:48,884 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:09:49,082 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:49,228 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:09:49,430 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 15:09:49,558 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:09:49,726 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:49,883 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 15:09:50,068 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:09:50,363 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:09:50,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:50,377 INFO L93 Difference]: Finished difference Result 14873 states and 30951 transitions. [2021-01-20 15:09:50,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:09:50,378 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:50,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:50,392 INFO L225 Difference]: With dead ends: 14873 [2021-01-20 15:09:50,393 INFO L226 Difference]: Without dead ends: 14873 [2021-01-20 15:09:50,394 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=488, Invalid=1152, Unknown=0, NotChecked=0, Total=1640 [2021-01-20 15:09:50,394 INFO L78 Accepts]: Start accepts. Automaton has 14873 states. Word has length 101 [2021-01-20 15:09:50,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:50,394 INFO L481 AbstractCegarLoop]: Abstraction has 14873 states. [2021-01-20 15:09:50,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:50,394 INFO L276 IsEmpty]: Start isEmpty. Operand 14873 states. [2021-01-20 15:09:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:50,411 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:50,411 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:50,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-20 15:09:50,412 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:50,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:50,412 INFO L82 PathProgramCache]: Analyzing trace with hash 792896148, now seen corresponding path program 29 times [2021-01-20 15:09:50,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:50,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402706655] [2021-01-20 15:09:50,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:51,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402706655] [2021-01-20 15:09:51,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:51,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:51,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681956435] [2021-01-20 15:09:51,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:51,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:51,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:51,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:51,259 INFO L87 Difference]: Start difference. First operand 14873 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:52,184 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-01-20 15:09:52,372 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:09:52,522 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:52,747 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:09:53,189 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 15:09:53,434 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:09:53,586 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:09:53,785 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:09:54,292 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-20 15:09:54,477 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:54,617 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2021-01-20 15:09:54,807 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 15:09:54,928 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-20 15:09:55,090 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:55,251 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2021-01-20 15:09:55,427 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:09:55,827 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:09:55,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:55,840 INFO L93 Difference]: Finished difference Result 14869 states and 30947 transitions. [2021-01-20 15:09:55,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 15:09:55,841 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:09:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:55,853 INFO L225 Difference]: With dead ends: 14869 [2021-01-20 15:09:55,853 INFO L226 Difference]: Without dead ends: 14869 [2021-01-20 15:09:55,854 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2021-01-20 15:09:55,854 INFO L78 Accepts]: Start accepts. Automaton has 14869 states. Word has length 101 [2021-01-20 15:09:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:55,854 INFO L481 AbstractCegarLoop]: Abstraction has 14869 states. [2021-01-20 15:09:55,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 14869 states. [2021-01-20 15:09:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:09:55,866 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:55,866 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:09:55,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-20 15:09:55,866 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:55,867 INFO L82 PathProgramCache]: Analyzing trace with hash -230426996, now seen corresponding path program 30 times [2021-01-20 15:09:55,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:55,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545831004] [2021-01-20 15:09:55,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:56,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545831004] [2021-01-20 15:09:56,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:56,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:09:56,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224505935] [2021-01-20 15:09:56,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:09:56,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:56,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:09:56,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:09:56,700 INFO L87 Difference]: Start difference. First operand 14869 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:57,591 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2021-01-20 15:09:57,770 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 15:09:58,198 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:09:58,371 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:09:58,538 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:09:58,698 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:09:58,903 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:09:59,440 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-20 15:09:59,599 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:09:59,744 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-01-20 15:09:59,907 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:10:00,171 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:10:00,451 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-20 15:10:00,602 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:10:00,871 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 15:10:00,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:00,883 INFO L93 Difference]: Finished difference Result 14865 states and 30943 transitions. [2021-01-20 15:10:00,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 15:10:00,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:00,897 INFO L225 Difference]: With dead ends: 14865 [2021-01-20 15:10:00,897 INFO L226 Difference]: Without dead ends: 14865 [2021-01-20 15:10:00,898 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-01-20 15:10:00,898 INFO L78 Accepts]: Start accepts. Automaton has 14865 states. Word has length 101 [2021-01-20 15:10:00,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:00,899 INFO L481 AbstractCegarLoop]: Abstraction has 14865 states. [2021-01-20 15:10:00,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:00,899 INFO L276 IsEmpty]: Start isEmpty. Operand 14865 states. [2021-01-20 15:10:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:00,912 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:00,913 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:00,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-20 15:10:00,913 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:00,913 INFO L82 PathProgramCache]: Analyzing trace with hash -502170122, now seen corresponding path program 31 times [2021-01-20 15:10:00,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:00,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171572199] [2021-01-20 15:10:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:01,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171572199] [2021-01-20 15:10:01,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:01,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:01,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188990063] [2021-01-20 15:10:01,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:01,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:01,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:01,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:01,719 INFO L87 Difference]: Start difference. First operand 14865 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:03,228 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:10:03,396 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:10:03,561 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:10:03,758 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:10:04,396 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-01-20 15:10:04,528 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-01-20 15:10:04,774 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-20 15:10:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:04,915 INFO L93 Difference]: Finished difference Result 14861 states and 30939 transitions. [2021-01-20 15:10:04,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-20 15:10:04,916 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:04,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:04,930 INFO L225 Difference]: With dead ends: 14861 [2021-01-20 15:10:04,930 INFO L226 Difference]: Without dead ends: 14861 [2021-01-20 15:10:04,931 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2021-01-20 15:10:04,931 INFO L78 Accepts]: Start accepts. Automaton has 14861 states. Word has length 101 [2021-01-20 15:10:04,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:04,931 INFO L481 AbstractCegarLoop]: Abstraction has 14861 states. [2021-01-20 15:10:04,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 14861 states. [2021-01-20 15:10:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:04,948 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:04,949 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:04,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-20 15:10:04,949 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:04,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:04,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1182958, now seen corresponding path program 32 times [2021-01-20 15:10:04,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:04,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726359887] [2021-01-20 15:10:04,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:05,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726359887] [2021-01-20 15:10:05,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:05,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:05,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726812742] [2021-01-20 15:10:05,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:05,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:05,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:05,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:05,911 INFO L87 Difference]: Start difference. First operand 14861 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:06,820 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:10:07,021 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:10:07,229 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 15:10:08,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:08,247 INFO L93 Difference]: Finished difference Result 14893 states and 30969 transitions. [2021-01-20 15:10:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:10:08,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:08,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:08,262 INFO L225 Difference]: With dead ends: 14893 [2021-01-20 15:10:08,262 INFO L226 Difference]: Without dead ends: 14893 [2021-01-20 15:10:08,263 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:10:08,263 INFO L78 Accepts]: Start accepts. Automaton has 14893 states. Word has length 101 [2021-01-20 15:10:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:08,263 INFO L481 AbstractCegarLoop]: Abstraction has 14893 states. [2021-01-20 15:10:08,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 14893 states. [2021-01-20 15:10:08,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:08,276 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:08,277 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:08,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-20 15:10:08,277 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:08,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:08,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1044350914, now seen corresponding path program 33 times [2021-01-20 15:10:08,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:08,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551549271] [2021-01-20 15:10:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:09,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551549271] [2021-01-20 15:10:09,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:09,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:09,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014055577] [2021-01-20 15:10:09,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:09,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:09,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:09,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:09,113 INFO L87 Difference]: Start difference. First operand 14893 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:10,225 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-20 15:10:10,425 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:10:10,576 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:10:10,784 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:11,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:11,923 INFO L93 Difference]: Finished difference Result 14925 states and 30999 transitions. [2021-01-20 15:10:11,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 15:10:11,924 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:11,939 INFO L225 Difference]: With dead ends: 14925 [2021-01-20 15:10:11,939 INFO L226 Difference]: Without dead ends: 14925 [2021-01-20 15:10:11,940 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:10:11,940 INFO L78 Accepts]: Start accepts. Automaton has 14925 states. Word has length 101 [2021-01-20 15:10:11,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:11,940 INFO L481 AbstractCegarLoop]: Abstraction has 14925 states. [2021-01-20 15:10:11,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:11,940 INFO L276 IsEmpty]: Start isEmpty. Operand 14925 states. [2021-01-20 15:10:11,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:11,953 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:11,953 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:11,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-01-20 15:10:11,953 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:11,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:11,954 INFO L82 PathProgramCache]: Analyzing trace with hash 425989068, now seen corresponding path program 34 times [2021-01-20 15:10:11,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:11,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596996281] [2021-01-20 15:10:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:12,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596996281] [2021-01-20 15:10:12,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:12,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:12,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797515643] [2021-01-20 15:10:12,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:12,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:12,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:12,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:12,791 INFO L87 Difference]: Start difference. First operand 14925 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:13,686 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 15:10:13,865 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 15:10:14,063 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 15:10:14,212 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:10:14,422 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:15,513 INFO L93 Difference]: Finished difference Result 14921 states and 30995 transitions. [2021-01-20 15:10:15,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-20 15:10:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:15,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:15,528 INFO L225 Difference]: With dead ends: 14921 [2021-01-20 15:10:15,528 INFO L226 Difference]: Without dead ends: 14921 [2021-01-20 15:10:15,529 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-01-20 15:10:15,529 INFO L78 Accepts]: Start accepts. Automaton has 14921 states. Word has length 101 [2021-01-20 15:10:15,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:15,529 INFO L481 AbstractCegarLoop]: Abstraction has 14921 states. [2021-01-20 15:10:15,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 14921 states. [2021-01-20 15:10:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:15,543 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:15,543 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:15,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-20 15:10:15,544 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:15,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:15,544 INFO L82 PathProgramCache]: Analyzing trace with hash 326384374, now seen corresponding path program 35 times [2021-01-20 15:10:15,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:15,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923502386] [2021-01-20 15:10:15,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:16,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923502386] [2021-01-20 15:10:16,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:16,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:16,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192278549] [2021-01-20 15:10:16,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:16,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:16,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:16,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:16,421 INFO L87 Difference]: Start difference. First operand 14921 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:17,457 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-01-20 15:10:17,681 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 15:10:17,906 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 15:10:18,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:18,634 INFO L93 Difference]: Finished difference Result 14953 states and 31025 transitions. [2021-01-20 15:10:18,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 15:10:18,635 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:18,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:18,651 INFO L225 Difference]: With dead ends: 14953 [2021-01-20 15:10:18,651 INFO L226 Difference]: Without dead ends: 14953 [2021-01-20 15:10:18,651 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:10:18,652 INFO L78 Accepts]: Start accepts. Automaton has 14953 states. Word has length 101 [2021-01-20 15:10:18,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:18,652 INFO L481 AbstractCegarLoop]: Abstraction has 14953 states. [2021-01-20 15:10:18,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 14953 states. [2021-01-20 15:10:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:18,668 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:18,669 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:18,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-01-20 15:10:18,669 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:18,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:18,670 INFO L82 PathProgramCache]: Analyzing trace with hash 682810952, now seen corresponding path program 36 times [2021-01-20 15:10:18,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:18,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645453519] [2021-01-20 15:10:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:19,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645453519] [2021-01-20 15:10:19,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:19,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:19,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340800303] [2021-01-20 15:10:19,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:19,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:19,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:19,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:19,620 INFO L87 Difference]: Start difference. First operand 14953 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:20,436 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:10:20,645 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:10:20,851 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 15:10:21,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:21,575 INFO L93 Difference]: Finished difference Result 14987 states and 31057 transitions. [2021-01-20 15:10:21,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 15:10:21,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:21,590 INFO L225 Difference]: With dead ends: 14987 [2021-01-20 15:10:21,590 INFO L226 Difference]: Without dead ends: 14987 [2021-01-20 15:10:21,591 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:10:21,591 INFO L78 Accepts]: Start accepts. Automaton has 14987 states. Word has length 101 [2021-01-20 15:10:21,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:21,591 INFO L481 AbstractCegarLoop]: Abstraction has 14987 states. [2021-01-20 15:10:21,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:21,591 INFO L276 IsEmpty]: Start isEmpty. Operand 14987 states. [2021-01-20 15:10:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:21,604 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:21,605 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:21,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-01-20 15:10:21,605 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:21,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:21,605 INFO L82 PathProgramCache]: Analyzing trace with hash 623781080, now seen corresponding path program 37 times [2021-01-20 15:10:21,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:21,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638799109] [2021-01-20 15:10:21,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:22,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638799109] [2021-01-20 15:10:22,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:22,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:22,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19775708] [2021-01-20 15:10:22,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:22,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:22,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:22,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:22,419 INFO L87 Difference]: Start difference. First operand 14987 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:23,300 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-20 15:10:23,494 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:10:23,653 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:10:23,855 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:24,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:24,813 INFO L93 Difference]: Finished difference Result 15017 states and 31085 transitions. [2021-01-20 15:10:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:10:24,814 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:24,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:24,825 INFO L225 Difference]: With dead ends: 15017 [2021-01-20 15:10:24,825 INFO L226 Difference]: Without dead ends: 15017 [2021-01-20 15:10:24,826 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:10:24,826 INFO L78 Accepts]: Start accepts. Automaton has 15017 states. Word has length 101 [2021-01-20 15:10:24,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:24,826 INFO L481 AbstractCegarLoop]: Abstraction has 15017 states. [2021-01-20 15:10:24,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 15017 states. [2021-01-20 15:10:24,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:24,837 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:24,837 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:24,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-01-20 15:10:24,837 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:24,838 INFO L82 PathProgramCache]: Analyzing trace with hash -807716776, now seen corresponding path program 38 times [2021-01-20 15:10:24,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:24,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230238668] [2021-01-20 15:10:24,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:25,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230238668] [2021-01-20 15:10:25,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:25,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:25,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076650257] [2021-01-20 15:10:25,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:25,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:25,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:25,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:25,720 INFO L87 Difference]: Start difference. First operand 15017 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:26,604 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 15:10:26,809 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 15:10:27,012 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 15:10:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:27,713 INFO L93 Difference]: Finished difference Result 15049 states and 31115 transitions. [2021-01-20 15:10:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 15:10:27,714 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:27,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:27,728 INFO L225 Difference]: With dead ends: 15049 [2021-01-20 15:10:27,728 INFO L226 Difference]: Without dead ends: 15049 [2021-01-20 15:10:27,729 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:10:27,729 INFO L78 Accepts]: Start accepts. Automaton has 15049 states. Word has length 101 [2021-01-20 15:10:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:27,730 INFO L481 AbstractCegarLoop]: Abstraction has 15049 states. [2021-01-20 15:10:27,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 15049 states. [2021-01-20 15:10:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:27,744 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:27,744 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:27,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-01-20 15:10:27,744 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:27,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:27,745 INFO L82 PathProgramCache]: Analyzing trace with hash -866746648, now seen corresponding path program 39 times [2021-01-20 15:10:27,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:27,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804402827] [2021-01-20 15:10:27,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:28,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804402827] [2021-01-20 15:10:28,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:28,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:28,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300208455] [2021-01-20 15:10:28,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:28,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:28,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:28,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:28,575 INFO L87 Difference]: Start difference. First operand 15049 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:29,487 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-01-20 15:10:29,673 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:10:29,829 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:10:30,039 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:30,834 INFO L93 Difference]: Finished difference Result 15081 states and 31145 transitions. [2021-01-20 15:10:30,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:10:30,835 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:30,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:30,849 INFO L225 Difference]: With dead ends: 15081 [2021-01-20 15:10:30,849 INFO L226 Difference]: Without dead ends: 15081 [2021-01-20 15:10:30,850 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 15:10:30,850 INFO L78 Accepts]: Start accepts. Automaton has 15081 states. Word has length 101 [2021-01-20 15:10:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:30,851 INFO L481 AbstractCegarLoop]: Abstraction has 15081 states. [2021-01-20 15:10:30,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 15081 states. [2021-01-20 15:10:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-01-20 15:10:30,867 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:30,868 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:30,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-20 15:10:30,875 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:30,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:30,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1294019348, now seen corresponding path program 40 times [2021-01-20 15:10:30,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:30,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000566883] [2021-01-20 15:10:30,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:31,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000566883] [2021-01-20 15:10:31,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:31,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:31,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030370037] [2021-01-20 15:10:31,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:31,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:31,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:31,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:31,683 INFO L87 Difference]: Start difference. First operand 15081 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:32,771 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 15:10:32,962 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 15:10:33,160 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 15:10:33,316 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 15:10:33,523 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:34,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:34,292 INFO L93 Difference]: Finished difference Result 15077 states and 31141 transitions. [2021-01-20 15:10:34,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 15:10:34,293 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-01-20 15:10:34,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:34,306 INFO L225 Difference]: With dead ends: 15077 [2021-01-20 15:10:34,306 INFO L226 Difference]: Without dead ends: 15077 [2021-01-20 15:10:34,307 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-01-20 15:10:34,307 INFO L78 Accepts]: Start accepts. Automaton has 15077 states. Word has length 101 [2021-01-20 15:10:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:34,307 INFO L481 AbstractCegarLoop]: Abstraction has 15077 states. [2021-01-20 15:10:34,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 15077 states. [2021-01-20 15:10:34,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:10:34,321 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:34,321 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:34,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-01-20 15:10:34,321 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:34,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:34,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1244963182, now seen corresponding path program 1 times [2021-01-20 15:10:34,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:34,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964281779] [2021-01-20 15:10:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:35,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:35,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964281779] [2021-01-20 15:10:35,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:35,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:35,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383525763] [2021-01-20 15:10:35,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:35,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:35,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:35,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:35,785 INFO L87 Difference]: Start difference. First operand 15077 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:36,617 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-01-20 15:10:36,835 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2021-01-20 15:10:37,043 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-01-20 15:10:37,299 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-01-20 15:10:37,503 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2021-01-20 15:10:38,003 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-01-20 15:10:38,237 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-01-20 15:10:38,400 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:10:38,744 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-01-20 15:10:38,961 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-01-20 15:10:39,452 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2021-01-20 15:10:39,722 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:10:40,011 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 15:10:40,186 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:10:40,359 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:10:40,542 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 15:10:40,733 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-01-20 15:10:40,905 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 15:10:40,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:40,920 INFO L93 Difference]: Finished difference Result 22383 states and 46098 transitions. [2021-01-20 15:10:40,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 15:10:40,921 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:10:40,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:41,095 INFO L225 Difference]: With dead ends: 22383 [2021-01-20 15:10:41,095 INFO L226 Difference]: Without dead ends: 22220 [2021-01-20 15:10:41,096 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=414, Invalid=1842, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 15:10:41,096 INFO L78 Accepts]: Start accepts. Automaton has 22220 states. Word has length 107 [2021-01-20 15:10:41,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:41,096 INFO L481 AbstractCegarLoop]: Abstraction has 22220 states. [2021-01-20 15:10:41,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:41,096 INFO L276 IsEmpty]: Start isEmpty. Operand 22220 states. [2021-01-20 15:10:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:10:41,112 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:41,112 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:41,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-01-20 15:10:41,112 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:41,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:41,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1976730970, now seen corresponding path program 2 times [2021-01-20 15:10:41,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:41,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411966966] [2021-01-20 15:10:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:42,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411966966] [2021-01-20 15:10:42,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:42,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:42,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541239822] [2021-01-20 15:10:42,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:42,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:42,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:42,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:42,596 INFO L87 Difference]: Start difference. First operand 22220 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:43,455 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-01-20 15:10:43,670 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2021-01-20 15:10:43,878 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-01-20 15:10:44,133 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-01-20 15:10:44,366 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-01-20 15:10:44,930 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 15:10:45,212 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-01-20 15:10:45,385 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:10:45,788 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-01-20 15:10:46,453 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-01-20 15:10:46,687 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 15:10:46,893 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-01-20 15:10:47,176 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 15:10:47,504 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:10:47,708 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:10:47,897 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 15:10:48,096 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 15:10:48,308 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-01-20 15:10:48,492 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 15:10:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:48,510 INFO L93 Difference]: Finished difference Result 22308 states and 45876 transitions. [2021-01-20 15:10:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-20 15:10:48,511 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:10:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:48,531 INFO L225 Difference]: With dead ends: 22308 [2021-01-20 15:10:48,532 INFO L226 Difference]: Without dead ends: 22187 [2021-01-20 15:10:48,532 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=432, Invalid=1920, Unknown=0, NotChecked=0, Total=2352 [2021-01-20 15:10:48,532 INFO L78 Accepts]: Start accepts. Automaton has 22187 states. Word has length 107 [2021-01-20 15:10:48,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:48,532 INFO L481 AbstractCegarLoop]: Abstraction has 22187 states. [2021-01-20 15:10:48,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:48,533 INFO L276 IsEmpty]: Start isEmpty. Operand 22187 states. [2021-01-20 15:10:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:10:48,551 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:48,551 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:48,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-20 15:10:48,552 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:48,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:48,552 INFO L82 PathProgramCache]: Analyzing trace with hash 26748470, now seen corresponding path program 3 times [2021-01-20 15:10:48,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:48,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324258396] [2021-01-20 15:10:48,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:49,292 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 29 [2021-01-20 15:10:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:50,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324258396] [2021-01-20 15:10:50,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:50,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:50,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869726940] [2021-01-20 15:10:50,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:50,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:50,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:50,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:50,457 INFO L87 Difference]: Start difference. First operand 22187 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:51,395 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-01-20 15:10:51,634 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2021-01-20 15:10:51,864 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-01-20 15:10:52,142 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-01-20 15:10:52,394 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-01-20 15:10:53,017 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 15:10:53,289 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2021-01-20 15:10:53,460 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:10:54,164 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2021-01-20 15:10:54,541 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2021-01-20 15:10:54,788 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 15:10:55,209 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:10:55,362 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:10:55,684 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:10:55,861 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:10:56,014 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:10:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:56,035 INFO L93 Difference]: Finished difference Result 22284 states and 45780 transitions. [2021-01-20 15:10:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:10:56,036 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:10:56,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:56,056 INFO L225 Difference]: With dead ends: 22284 [2021-01-20 15:10:56,057 INFO L226 Difference]: Without dead ends: 21948 [2021-01-20 15:10:56,057 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:10:56,057 INFO L78 Accepts]: Start accepts. Automaton has 21948 states. Word has length 107 [2021-01-20 15:10:56,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:56,058 INFO L481 AbstractCegarLoop]: Abstraction has 21948 states. [2021-01-20 15:10:56,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 21948 states. [2021-01-20 15:10:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:10:56,078 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:56,078 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:10:56,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-01-20 15:10:56,078 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:56,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:56,078 INFO L82 PathProgramCache]: Analyzing trace with hash -388480488, now seen corresponding path program 4 times [2021-01-20 15:10:56,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:56,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502764654] [2021-01-20 15:10:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:58,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502764654] [2021-01-20 15:10:58,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:58,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-01-20 15:10:58,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913997566] [2021-01-20 15:10:58,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-01-20 15:10:58,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:58,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-01-20 15:10:58,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2021-01-20 15:10:58,121 INFO L87 Difference]: Start difference. First operand 21948 states. Second operand has 29 states, 29 states have (on average 3.689655172413793) internal successors, (107), 29 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:59,396 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-01-20 15:10:59,864 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-01-20 15:11:00,114 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-01-20 15:11:00,356 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2021-01-20 15:11:00,572 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-01-20 15:11:00,806 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-01-20 15:11:01,035 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2021-01-20 15:11:01,657 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-01-20 15:11:01,861 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:11:02,533 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:02,795 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2021-01-20 15:11:03,133 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2021-01-20 15:11:03,379 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:11:03,830 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:11:03,990 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:04,159 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:11:04,340 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:11:04,523 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:11:04,678 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:11:04,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:04,702 INFO L93 Difference]: Finished difference Result 22013 states and 45254 transitions. [2021-01-20 15:11:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 15:11:04,703 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.689655172413793) internal successors, (107), 29 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:04,723 INFO L225 Difference]: With dead ends: 22013 [2021-01-20 15:11:04,723 INFO L226 Difference]: Without dead ends: 21818 [2021-01-20 15:11:04,723 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 15:11:04,724 INFO L78 Accepts]: Start accepts. Automaton has 21818 states. Word has length 107 [2021-01-20 15:11:04,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:04,724 INFO L481 AbstractCegarLoop]: Abstraction has 21818 states. [2021-01-20 15:11:04,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 3.689655172413793) internal successors, (107), 29 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:04,724 INFO L276 IsEmpty]: Start isEmpty. Operand 21818 states. [2021-01-20 15:11:04,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:04,750 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:04,750 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:04,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-01-20 15:11:04,750 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:04,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:04,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1391901286, now seen corresponding path program 5 times [2021-01-20 15:11:04,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:04,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974776104] [2021-01-20 15:11:04,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:06,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974776104] [2021-01-20 15:11:06,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:06,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-01-20 15:11:06,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380156504] [2021-01-20 15:11:06,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-01-20 15:11:06,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:06,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-01-20 15:11:06,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2021-01-20 15:11:06,761 INFO L87 Difference]: Start difference. First operand 21818 states. Second operand has 29 states, 29 states have (on average 3.689655172413793) internal successors, (107), 29 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:07,941 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-01-20 15:11:08,417 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-01-20 15:11:08,672 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-01-20 15:11:08,917 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2021-01-20 15:11:09,141 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-01-20 15:11:09,381 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-01-20 15:11:09,612 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2021-01-20 15:11:10,402 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:11:11,003 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:11:11,265 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:11,535 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2021-01-20 15:11:11,892 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2021-01-20 15:11:12,143 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:11:12,618 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:11:12,802 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:11:12,953 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:13,103 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 15:11:13,296 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 15:11:13,441 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-01-20 15:11:13,628 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:11:13,825 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:11:13,987 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:11:14,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:14,026 INFO L93 Difference]: Finished difference Result 22955 states and 46951 transitions. [2021-01-20 15:11:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 15:11:14,027 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.689655172413793) internal successors, (107), 29 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:14,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:14,047 INFO L225 Difference]: With dead ends: 22955 [2021-01-20 15:11:14,048 INFO L226 Difference]: Without dead ends: 22652 [2021-01-20 15:11:14,048 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=591, Invalid=3069, Unknown=0, NotChecked=0, Total=3660 [2021-01-20 15:11:14,048 INFO L78 Accepts]: Start accepts. Automaton has 22652 states. Word has length 107 [2021-01-20 15:11:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:14,049 INFO L481 AbstractCegarLoop]: Abstraction has 22652 states. [2021-01-20 15:11:14,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 3.689655172413793) internal successors, (107), 29 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 22652 states. [2021-01-20 15:11:14,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:14,075 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:14,075 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:14,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-01-20 15:11:14,076 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:14,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1576088942, now seen corresponding path program 6 times [2021-01-20 15:11:14,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:14,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956367980] [2021-01-20 15:11:14,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:15,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956367980] [2021-01-20 15:11:15,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:15,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:15,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390970666] [2021-01-20 15:11:15,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:15,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:15,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:15,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:15,590 INFO L87 Difference]: Start difference. First operand 22652 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:16,611 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-01-20 15:11:16,789 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-01-20 15:11:17,015 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-01-20 15:11:17,416 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:11:17,597 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:17,812 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-01-20 15:11:18,104 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-01-20 15:11:18,320 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:11:18,802 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-01-20 15:11:19,075 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:19,405 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 15:11:19,595 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:11:19,783 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:11:19,976 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:11:20,182 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-01-20 15:11:20,367 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:11:20,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:20,386 INFO L93 Difference]: Finished difference Result 25108 states and 51383 transitions. [2021-01-20 15:11:20,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:11:20,386 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:20,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:20,409 INFO L225 Difference]: With dead ends: 25108 [2021-01-20 15:11:20,410 INFO L226 Difference]: Without dead ends: 24945 [2021-01-20 15:11:20,410 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=419, Invalid=1837, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 15:11:20,410 INFO L78 Accepts]: Start accepts. Automaton has 24945 states. Word has length 107 [2021-01-20 15:11:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:20,410 INFO L481 AbstractCegarLoop]: Abstraction has 24945 states. [2021-01-20 15:11:20,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:20,411 INFO L276 IsEmpty]: Start isEmpty. Operand 24945 states. [2021-01-20 15:11:20,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:20,433 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:20,433 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:20,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-01-20 15:11:20,433 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:20,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:20,434 INFO L82 PathProgramCache]: Analyzing trace with hash 844321154, now seen corresponding path program 7 times [2021-01-20 15:11:20,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:20,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620896261] [2021-01-20 15:11:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:20,885 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2021-01-20 15:11:22,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:22,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620896261] [2021-01-20 15:11:22,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:22,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:22,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258210688] [2021-01-20 15:11:22,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:22,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:22,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:22,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:22,136 INFO L87 Difference]: Start difference. First operand 24945 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:23,205 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-01-20 15:11:23,391 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-01-20 15:11:23,624 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-01-20 15:11:24,054 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:11:24,232 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:24,456 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-01-20 15:11:24,767 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-01-20 15:11:25,289 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-01-20 15:11:25,519 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:11:25,717 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:11:25,995 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:26,336 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 15:11:26,538 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 15:11:26,738 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 15:11:26,942 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:11:27,153 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-01-20 15:11:27,341 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:11:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:27,365 INFO L93 Difference]: Finished difference Result 25033 states and 51161 transitions. [2021-01-20 15:11:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 15:11:27,366 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:27,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:27,391 INFO L225 Difference]: With dead ends: 25033 [2021-01-20 15:11:27,391 INFO L226 Difference]: Without dead ends: 24912 [2021-01-20 15:11:27,391 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=435, Invalid=1917, Unknown=0, NotChecked=0, Total=2352 [2021-01-20 15:11:27,391 INFO L78 Accepts]: Start accepts. Automaton has 24912 states. Word has length 107 [2021-01-20 15:11:27,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:27,392 INFO L481 AbstractCegarLoop]: Abstraction has 24912 states. [2021-01-20 15:11:27,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 24912 states. [2021-01-20 15:11:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:27,414 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:27,415 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:27,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-01-20 15:11:27,415 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:27,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:27,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1447166702, now seen corresponding path program 8 times [2021-01-20 15:11:27,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:27,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638344454] [2021-01-20 15:11:27,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:29,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638344454] [2021-01-20 15:11:29,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:29,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:29,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932572314] [2021-01-20 15:11:29,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:29,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:29,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:29,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:29,172 INFO L87 Difference]: Start difference. First operand 24912 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:30,176 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-01-20 15:11:30,360 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-01-20 15:11:30,581 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-01-20 15:11:30,991 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:11:31,168 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:31,386 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-01-20 15:11:31,885 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-01-20 15:11:32,168 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-01-20 15:11:32,397 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:11:32,803 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 15:11:32,969 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:11:33,141 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:11:33,320 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:11:33,503 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 15:11:33,662 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:11:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:33,684 INFO L93 Difference]: Finished difference Result 25009 states and 51065 transitions. [2021-01-20 15:11:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:11:33,684 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:33,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:33,712 INFO L225 Difference]: With dead ends: 25009 [2021-01-20 15:11:33,712 INFO L226 Difference]: Without dead ends: 24673 [2021-01-20 15:11:33,713 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=388, Invalid=1774, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:11:33,713 INFO L78 Accepts]: Start accepts. Automaton has 24673 states. Word has length 107 [2021-01-20 15:11:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:33,713 INFO L481 AbstractCegarLoop]: Abstraction has 24673 states. [2021-01-20 15:11:33,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:33,713 INFO L276 IsEmpty]: Start isEmpty. Operand 24673 states. [2021-01-20 15:11:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:33,737 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:33,737 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:33,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-01-20 15:11:33,737 INFO L429 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:33,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1862395660, now seen corresponding path program 9 times [2021-01-20 15:11:33,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:33,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147159232] [2021-01-20 15:11:33,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:35,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147159232] [2021-01-20 15:11:35,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:35,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:35,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454910135] [2021-01-20 15:11:35,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:35,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:35,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:35,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:35,355 INFO L87 Difference]: Start difference. First operand 24673 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:36,493 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-01-20 15:11:36,676 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-01-20 15:11:36,904 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-01-20 15:11:37,323 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:11:37,501 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 15:11:37,942 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:11:38,185 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-01-20 15:11:38,468 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-01-20 15:11:38,697 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:11:39,108 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 15:11:39,282 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:11:39,439 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:11:39,587 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 15:11:39,775 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:11:39,919 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 15:11:40,104 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:11:40,298 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 15:11:40,462 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:11:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:40,497 INFO L93 Difference]: Finished difference Result 24795 states and 50620 transitions. [2021-01-20 15:11:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-20 15:11:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:40,521 INFO L225 Difference]: With dead ends: 24795 [2021-01-20 15:11:40,521 INFO L226 Difference]: Without dead ends: 24600 [2021-01-20 15:11:40,522 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=429, Invalid=2021, Unknown=0, NotChecked=0, Total=2450 [2021-01-20 15:11:40,522 INFO L78 Accepts]: Start accepts. Automaton has 24600 states. Word has length 107 [2021-01-20 15:11:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:40,522 INFO L481 AbstractCegarLoop]: Abstraction has 24600 states. [2021-01-20 15:11:40,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 24600 states. [2021-01-20 15:11:40,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:40,545 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:40,545 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:40,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-01-20 15:11:40,545 INFO L429 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:40,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:40,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1003773884, now seen corresponding path program 10 times [2021-01-20 15:11:40,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:40,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553702236] [2021-01-20 15:11:40,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:42,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:42,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553702236] [2021-01-20 15:11:42,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:42,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:42,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060784556] [2021-01-20 15:11:42,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:42,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:42,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:42,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:42,080 INFO L87 Difference]: Start difference. First operand 24600 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:43,081 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-01-20 15:11:43,259 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-01-20 15:11:43,489 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-01-20 15:11:43,908 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:11:44,093 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 15:11:44,310 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:11:44,746 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 15:11:44,972 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:11:45,470 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:11:45,748 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 15:11:46,088 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 15:11:46,279 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:11:46,476 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-20 15:11:46,680 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:11:46,890 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:11:47,079 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:11:47,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:47,098 INFO L93 Difference]: Finished difference Result 25311 states and 51546 transitions. [2021-01-20 15:11:47,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:11:47,099 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:47,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:47,122 INFO L225 Difference]: With dead ends: 25311 [2021-01-20 15:11:47,122 INFO L226 Difference]: Without dead ends: 24985 [2021-01-20 15:11:47,122 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=431, Invalid=1825, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 15:11:47,122 INFO L78 Accepts]: Start accepts. Automaton has 24985 states. Word has length 107 [2021-01-20 15:11:47,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:47,122 INFO L481 AbstractCegarLoop]: Abstraction has 24985 states. [2021-01-20 15:11:47,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:47,123 INFO L276 IsEmpty]: Start isEmpty. Operand 24985 states. [2021-01-20 15:11:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:47,146 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:47,146 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:47,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-01-20 15:11:47,147 INFO L429 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:47,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:47,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1735541672, now seen corresponding path program 11 times [2021-01-20 15:11:47,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:47,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560382984] [2021-01-20 15:11:47,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:48,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560382984] [2021-01-20 15:11:48,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:48,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-01-20 15:11:48,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415354316] [2021-01-20 15:11:48,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-01-20 15:11:48,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:48,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-01-20 15:11:48,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-01-20 15:11:48,491 INFO L87 Difference]: Start difference. First operand 24985 states. Second operand has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:49,472 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-01-20 15:11:49,658 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-01-20 15:11:49,903 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-01-20 15:11:50,306 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:11:50,486 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 15:11:50,694 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:11:50,981 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 15:11:51,463 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 15:11:51,693 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-01-20 15:11:51,897 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:11:52,164 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 15:11:52,502 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-01-20 15:11:52,703 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:11:53,037 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-20 15:11:53,239 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:11:53,449 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:11:53,637 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:11:53,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:53,656 INFO L93 Difference]: Finished difference Result 25161 states and 51102 transitions. [2021-01-20 15:11:53,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 15:11:53,657 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:11:53,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:53,676 INFO L225 Difference]: With dead ends: 25161 [2021-01-20 15:11:53,676 INFO L226 Difference]: Without dead ends: 24919 [2021-01-20 15:11:53,676 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=429, Invalid=1733, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:11:53,676 INFO L78 Accepts]: Start accepts. Automaton has 24919 states. Word has length 107 [2021-01-20 15:11:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:53,677 INFO L481 AbstractCegarLoop]: Abstraction has 24919 states. [2021-01-20 15:11:53,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 24919 states. [2021-01-20 15:11:53,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:11:53,696 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:53,696 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:11:53,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-01-20 15:11:53,696 INFO L429 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:53,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:53,697 INFO L82 PathProgramCache]: Analyzing trace with hash 267937768, now seen corresponding path program 12 times [2021-01-20 15:11:53,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:53,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471524657] [2021-01-20 15:11:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:55,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471524657] [2021-01-20 15:11:55,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:55,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-01-20 15:11:55,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905897048] [2021-01-20 15:11:55,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-01-20 15:11:55,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:55,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-01-20 15:11:55,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2021-01-20 15:11:55,167 INFO L87 Difference]: Start difference. First operand 24919 states. Second operand has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:56,180 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2021-01-20 15:11:56,369 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2021-01-20 15:11:56,599 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2021-01-20 15:11:57,006 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 15:11:57,192 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 15:11:57,406 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 15:11:57,901 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:11:58,179 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 15:11:58,420 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-01-20 15:11:58,844 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-01-20 15:11:59,057 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-20 15:11:59,231 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-20 15:11:59,407 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-20 15:11:59,609 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 15:11:59,776 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 15:11:59,975 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:12:00,194 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 15:12:00,375 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:12:00,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:12:00,402 INFO L93 Difference]: Finished difference Result 25134 states and 50961 transitions. [2021-01-20 15:12:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-20 15:12:00,403 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-01-20 15:12:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:12:00,426 INFO L225 Difference]: With dead ends: 25134 [2021-01-20 15:12:00,426 INFO L226 Difference]: Without dead ends: 24646 [2021-01-20 15:12:00,426 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=419, Invalid=1837, Unknown=0, NotChecked=0, Total=2256 [2021-01-20 15:12:00,426 INFO L78 Accepts]: Start accepts. Automaton has 24646 states. Word has length 107 [2021-01-20 15:12:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:12:00,426 INFO L481 AbstractCegarLoop]: Abstraction has 24646 states. [2021-01-20 15:12:00,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24646 states. [2021-01-20 15:12:00,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-20 15:12:00,449 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:12:00,449 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:12:00,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-01-20 15:12:00,449 INFO L429 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:12:00,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:12:00,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1541126434, now seen corresponding path program 13 times [2021-01-20 15:12:00,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:12:00,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272435031] [2021-01-20 15:12:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:12:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-20 15:12:00,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-20 15:12:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-20 15:12:00,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-20 15:12:00,585 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-20 15:12:00,585 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-01-20 15:12:00,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-01-20 15:12:00,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 03:12:00 BasicIcfg [2021-01-20 15:12:00,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 15:12:00,945 INFO L168 Benchmark]: Toolchain (without parser) took 234953.64 ms. Allocated memory was 302.0 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 275.5 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-01-20 15:12:00,946 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 15:12:00,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1583.68 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 176.8 MB in the end (delta: 98.4 MB). Peak memory consumption was 99.7 MB. Max. memory is 16.0 GB. [2021-01-20 15:12:00,947 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.74 ms. Allocated memory is still 302.0 MB. Free memory was 176.8 MB in the beginning and 173.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 15:12:00,947 INFO L168 Benchmark]: Boogie Preprocessor took 49.47 ms. Allocated memory is still 302.0 MB. Free memory was 173.6 MB in the beginning and 170.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 15:12:00,947 INFO L168 Benchmark]: RCFGBuilder took 856.50 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 170.5 MB in the beginning and 329.4 MB in the end (delta: -158.9 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. [2021-01-20 15:12:00,948 INFO L168 Benchmark]: TraceAbstraction took 232336.06 ms. Allocated memory was 362.8 MB in the beginning and 2.5 GB in the end (delta: 2.1 GB). Free memory was 328.4 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-01-20 15:12:00,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1583.68 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 176.8 MB in the end (delta: 98.4 MB). Peak memory consumption was 99.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 114.74 ms. Allocated memory is still 302.0 MB. Free memory was 176.8 MB in the beginning and 173.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 49.47 ms. Allocated memory is still 302.0 MB. Free memory was 173.6 MB in the beginning and 170.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 856.50 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 170.5 MB in the beginning and 329.4 MB in the end (delta: -158.9 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 232336.06 ms. Allocated memory was 362.8 MB in the beginning and 2.5 GB in the end (delta: 2.1 GB). Free memory was 328.4 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1671]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={7:0}, t2={8:0}] [L1688] 0 struct device *my_dev; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1727] 0 return 0; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1733] 0 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1734] COND TRUE 0 ret==0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1735] 0 int probe_ret; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1736] 0 struct my_data data; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1705] 0 data->shared.a = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1706] 0 data->shared.b = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1707] 0 data->shared.a VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1708] 0 data->shared.b VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1709] 0 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1710] COND FALSE 0 !(\read(res)) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1712] 0 my_dev = &data->dev VAL [my_dev={9:24}, t1={7:0}, t2={8:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 1 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 2 struct my_data *data; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1715] 0 return 0; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 1 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1737] 0 probe_ret = my_drv_probe(&data) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1738] COND TRUE 0 probe_ret==0 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1699] 2 data->shared.b = lb + 1 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 2 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1740] 0 data.shared.a VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1741] 0 data.shared.b VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND TRUE 0 !expression VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1671] COND FALSE 0 !(0) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1671] 0 __assert_fail ("0", "race-3_2-container_of-global.c", 14, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 231.8s, OverallIterations: 58, TraceHistogramMax: 1, AutomataDifference: 174.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 10824 SDtfs, 35068 SDslu, 80668 SDs, 0 SdLazy, 40730 SolverSat, 3051 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2160 GetRequests, 186 SyntacticMatches, 41 SemanticMatches, 1933 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11541 ImplicationChecksByTransitivity, 155.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24985occurred in iteration=55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 51.0s InterpolantComputationTime, 5717 NumberOfCodeBlocks, 5717 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 5553 ConstructedInterpolants, 0 QuantifiedInterpolants, 8010985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...