/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:50:30,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:50:30,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:50:30,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:50:30,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 17:50:30,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 17:50:30,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 17:50:30,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 17:50:30,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 17:50:30,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 17:50:30,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 17:50:30,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 17:50:30,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 17:50:30,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 17:50:30,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 17:50:30,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 17:50:30,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 17:50:30,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:50:30,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:50:30,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:50:30,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 17:50:30,664 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:50:30,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:50:30,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:50:30,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:50:30,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:50:30,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:50:30,668 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:50:30,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:50:30,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:50:30,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:50:30,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:50:30,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:50:30,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:50:30,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:50:30,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:50:30,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:50:30,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:50:30,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:50:30,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:50:30,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:50:30,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:50:30,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:50:30,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:50:30,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:50:30,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:50:30,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:50:30,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:50:30,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:50:30,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:50:30,672 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:50:30,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:50:30,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:50:30,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:50:30,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:50:30,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:50:30,982 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:50:30,983 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:50:30,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-03-10 17:50:31,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e767b19/3d0111ce684d44d79c285064a4329895/FLAGa1cf3333b [2021-03-10 17:50:31,569 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:50:31,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-03-10 17:50:31,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e767b19/3d0111ce684d44d79c285064a4329895/FLAGa1cf3333b [2021-03-10 17:50:32,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e767b19/3d0111ce684d44d79c285064a4329895 [2021-03-10 17:50:32,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:50:32,026 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:50:32,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:50:32,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:50:32,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:50:32,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:32,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696f8d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32, skipping insertion in model container [2021-03-10 17:50:32,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:32,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:50:32,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:50:32,195 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 17:50:32,548 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-03-10 17:50:32,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:50:32,571 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:50:32,581 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 17:50:32,610 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2021-03-10 17:50:32,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:50:32,908 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:50:32,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32 WrapperNode [2021-03-10 17:50:32,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:50:32,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:50:32,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:50:32,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:50:32,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:32,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:32,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:50:32,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:50:32,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:50:32,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:50:32,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:32,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:32,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:32,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:33,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:33,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:33,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... [2021-03-10 17:50:33,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:50:33,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:50:33,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:50:33,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:50:33,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:50:33,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:50:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 17:50:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-10 17:50:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:50:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:50:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-10 17:50:33,100 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-10 17:50:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:50:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:50:33,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:50:33,101 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:50:33,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:50:33,826 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-03-10 17:50:33,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:50:33 BoogieIcfgContainer [2021-03-10 17:50:33,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:50:33,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:50:33,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:50:33,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:50:33,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:50:32" (1/3) ... [2021-03-10 17:50:33,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c16e558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:50:33, skipping insertion in model container [2021-03-10 17:50:33,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:50:32" (2/3) ... [2021-03-10 17:50:33,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c16e558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:50:33, skipping insertion in model container [2021-03-10 17:50:33,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:50:33" (3/3) ... [2021-03-10 17:50:33,837 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-03-10 17:50:33,845 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:50:33,845 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:50:33,849 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-03-10 17:50:33,850 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:50:33,874 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,874 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,874 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,875 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,888 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,888 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,888 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,888 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,890 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,890 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,890 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,890 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,890 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,891 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,893 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:50:33,900 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-10 17:50:33,914 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-10 17:50:33,930 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:50:33,930 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:50:33,930 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:50:33,930 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:50:33,930 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:50:33,930 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:50:33,930 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:50:33,930 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:50:33,941 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 135 places, 137 transitions, 296 flow [2021-03-10 17:50:34,130 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4959 states, 4950 states have (on average 2.787272727272727) internal successors, (13797), 4958 states have internal predecessors, (13797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:34,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 4959 states, 4950 states have (on average 2.787272727272727) internal successors, (13797), 4958 states have internal predecessors, (13797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:34,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-03-10 17:50:34,156 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:34,157 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:34,157 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:34,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:34,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1314548479, now seen corresponding path program 1 times [2021-03-10 17:50:34,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:34,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234396677] [2021-03-10 17:50:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:34,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234396677] [2021-03-10 17:50:34,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:34,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:50:34,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046595859] [2021-03-10 17:50:34,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:50:34,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:34,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:50:34,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:50:34,623 INFO L87 Difference]: Start difference. First operand has 4959 states, 4950 states have (on average 2.787272727272727) internal successors, (13797), 4958 states have internal predecessors, (13797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:35,060 INFO L93 Difference]: Finished difference Result 6688 states and 18247 transitions. [2021-03-10 17:50:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-10 17:50:35,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-03-10 17:50:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:35,109 INFO L225 Difference]: With dead ends: 6688 [2021-03-10 17:50:35,110 INFO L226 Difference]: Without dead ends: 5569 [2021-03-10 17:50:35,111 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 98.3ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:50:35,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2021-03-10 17:50:35,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 4289. [2021-03-10 17:50:35,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 4284 states have (on average 2.7180205415499534) internal successors, (11644), 4288 states have internal predecessors, (11644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 11644 transitions. [2021-03-10 17:50:35,347 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 11644 transitions. Word has length 48 [2021-03-10 17:50:35,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:35,348 INFO L480 AbstractCegarLoop]: Abstraction has 4289 states and 11644 transitions. [2021-03-10 17:50:35,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:35,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 11644 transitions. [2021-03-10 17:50:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-03-10 17:50:35,358 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:35,358 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:35,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:50:35,359 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:35,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:35,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1149159558, now seen corresponding path program 1 times [2021-03-10 17:50:35,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:35,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503215064] [2021-03-10 17:50:35,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:35,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503215064] [2021-03-10 17:50:35,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:35,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:50:35,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714923908] [2021-03-10 17:50:35,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:50:35,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:35,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:50:35,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:50:35,563 INFO L87 Difference]: Start difference. First operand 4289 states and 11644 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:35,843 INFO L93 Difference]: Finished difference Result 6005 states and 16154 transitions. [2021-03-10 17:50:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:50:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-03-10 17:50:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:35,865 INFO L225 Difference]: With dead ends: 6005 [2021-03-10 17:50:35,865 INFO L226 Difference]: Without dead ends: 5075 [2021-03-10 17:50:35,866 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 74.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:50:35,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5075 states. [2021-03-10 17:50:35,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5075 to 4905. [2021-03-10 17:50:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4905 states, 4901 states have (on average 2.720261171189553) internal successors, (13332), 4904 states have internal predecessors, (13332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:36,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 13332 transitions. [2021-03-10 17:50:36,003 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 13332 transitions. Word has length 54 [2021-03-10 17:50:36,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:36,004 INFO L480 AbstractCegarLoop]: Abstraction has 4905 states and 13332 transitions. [2021-03-10 17:50:36,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:36,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 13332 transitions. [2021-03-10 17:50:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 17:50:36,016 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:36,016 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:36,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:50:36,016 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:36,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:36,017 INFO L82 PathProgramCache]: Analyzing trace with hash -2000295627, now seen corresponding path program 1 times [2021-03-10 17:50:36,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:36,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754901732] [2021-03-10 17:50:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:36,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754901732] [2021-03-10 17:50:36,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:36,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:50:36,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443754891] [2021-03-10 17:50:36,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:50:36,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:36,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:50:36,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:50:36,134 INFO L87 Difference]: Start difference. First operand 4905 states and 13332 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:36,167 INFO L93 Difference]: Finished difference Result 1772 states and 4642 transitions. [2021-03-10 17:50:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:50:36,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 17:50:36,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:36,174 INFO L225 Difference]: With dead ends: 1772 [2021-03-10 17:50:36,175 INFO L226 Difference]: Without dead ends: 1772 [2021-03-10 17:50:36,175 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:50:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2021-03-10 17:50:36,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2021-03-10 17:50:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1770 states have (on average 2.622598870056497) internal successors, (4642), 1771 states have internal predecessors, (4642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 4642 transitions. [2021-03-10 17:50:36,215 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 4642 transitions. Word has length 60 [2021-03-10 17:50:36,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:36,215 INFO L480 AbstractCegarLoop]: Abstraction has 1772 states and 4642 transitions. [2021-03-10 17:50:36,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:36,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 4642 transitions. [2021-03-10 17:50:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:36,219 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:36,219 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:36,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:50:36,219 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:36,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:36,221 INFO L82 PathProgramCache]: Analyzing trace with hash 51289725, now seen corresponding path program 1 times [2021-03-10 17:50:36,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:36,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636956045] [2021-03-10 17:50:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:36,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636956045] [2021-03-10 17:50:36,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:36,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:36,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832034222] [2021-03-10 17:50:36,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:36,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:36,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:36,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:36,915 INFO L87 Difference]: Start difference. First operand 1772 states and 4642 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:37,575 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-03-10 17:50:37,711 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-03-10 17:50:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:38,230 INFO L93 Difference]: Finished difference Result 2508 states and 6171 transitions. [2021-03-10 17:50:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:50:38,231 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:38,240 INFO L225 Difference]: With dead ends: 2508 [2021-03-10 17:50:38,240 INFO L226 Difference]: Without dead ends: 2508 [2021-03-10 17:50:38,241 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1209.5ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:50:38,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2021-03-10 17:50:38,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 1987. [2021-03-10 17:50:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1985 states have (on average 2.5682619647355165) internal successors, (5098), 1986 states have internal predecessors, (5098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 5098 transitions. [2021-03-10 17:50:38,289 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 5098 transitions. Word has length 88 [2021-03-10 17:50:38,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:38,290 INFO L480 AbstractCegarLoop]: Abstraction has 1987 states and 5098 transitions. [2021-03-10 17:50:38,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:38,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 5098 transitions. [2021-03-10 17:50:38,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:38,297 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:38,297 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:38,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:50:38,297 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:38,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:38,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1196588487, now seen corresponding path program 1 times [2021-03-10 17:50:38,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:38,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785046523] [2021-03-10 17:50:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:38,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785046523] [2021-03-10 17:50:38,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:38,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-10 17:50:38,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333641148] [2021-03-10 17:50:38,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-10 17:50:38,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:38,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-10 17:50:38,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-03-10 17:50:38,857 INFO L87 Difference]: Start difference. First operand 1987 states and 5098 transitions. Second operand has 22 states, 22 states have (on average 4.0) internal successors, (88), 22 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:44,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:44,758 INFO L93 Difference]: Finished difference Result 1987 states and 5096 transitions. [2021-03-10 17:50:44,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-03-10 17:50:44,758 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.0) internal successors, (88), 22 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:44,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:44,765 INFO L225 Difference]: With dead ends: 1987 [2021-03-10 17:50:44,766 INFO L226 Difference]: Without dead ends: 1917 [2021-03-10 17:50:44,768 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1141 ImplicationChecksByTransitivity, 4884.1ms TimeCoverageRelationStatistics Valid=2664, Invalid=5892, Unknown=0, NotChecked=0, Total=8556 [2021-03-10 17:50:44,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2021-03-10 17:50:44,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1917. [2021-03-10 17:50:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1915 states have (on average 2.593211488250653) internal successors, (4966), 1916 states have internal predecessors, (4966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:44,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 4966 transitions. [2021-03-10 17:50:44,806 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 4966 transitions. Word has length 88 [2021-03-10 17:50:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:44,806 INFO L480 AbstractCegarLoop]: Abstraction has 1917 states and 4966 transitions. [2021-03-10 17:50:44,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 4.0) internal successors, (88), 22 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 4966 transitions. [2021-03-10 17:50:44,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:44,810 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:44,811 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:44,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:50:44,811 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:44,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:44,811 INFO L82 PathProgramCache]: Analyzing trace with hash 27638491, now seen corresponding path program 2 times [2021-03-10 17:50:44,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:44,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264322615] [2021-03-10 17:50:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:45,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264322615] [2021-03-10 17:50:45,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:45,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:45,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591563234] [2021-03-10 17:50:45,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:45,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:45,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:45,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:45,271 INFO L87 Difference]: Start difference. First operand 1917 states and 4966 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:46,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:46,538 INFO L93 Difference]: Finished difference Result 2312 states and 5818 transitions. [2021-03-10 17:50:46,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:50:46,538 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:46,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:46,560 INFO L225 Difference]: With dead ends: 2312 [2021-03-10 17:50:46,560 INFO L226 Difference]: Without dead ends: 2312 [2021-03-10 17:50:46,560 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1107.8ms TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:50:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2021-03-10 17:50:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2082. [2021-03-10 17:50:46,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2080 states have (on average 2.5831730769230767) internal successors, (5373), 2081 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 5373 transitions. [2021-03-10 17:50:46,607 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 5373 transitions. Word has length 88 [2021-03-10 17:50:46,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:46,608 INFO L480 AbstractCegarLoop]: Abstraction has 2082 states and 5373 transitions. [2021-03-10 17:50:46,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:46,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 5373 transitions. [2021-03-10 17:50:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:46,616 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:46,616 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:46,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:50:46,616 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:46,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:46,617 INFO L82 PathProgramCache]: Analyzing trace with hash 922356861, now seen corresponding path program 3 times [2021-03-10 17:50:46,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:46,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263244866] [2021-03-10 17:50:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:47,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263244866] [2021-03-10 17:50:47,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:47,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:47,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348955981] [2021-03-10 17:50:47,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:47,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:47,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:47,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:47,085 INFO L87 Difference]: Start difference. First operand 2082 states and 5373 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:48,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:48,224 INFO L93 Difference]: Finished difference Result 2479 states and 6120 transitions. [2021-03-10 17:50:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:50:48,225 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:48,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:48,229 INFO L225 Difference]: With dead ends: 2479 [2021-03-10 17:50:48,230 INFO L226 Difference]: Without dead ends: 2479 [2021-03-10 17:50:48,230 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1080.3ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:50:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2021-03-10 17:50:48,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2082. [2021-03-10 17:50:48,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2080 states have (on average 2.5831730769230767) internal successors, (5373), 2081 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:48,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 5373 transitions. [2021-03-10 17:50:48,275 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 5373 transitions. Word has length 88 [2021-03-10 17:50:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:48,275 INFO L480 AbstractCegarLoop]: Abstraction has 2082 states and 5373 transitions. [2021-03-10 17:50:48,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 5373 transitions. [2021-03-10 17:50:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:48,279 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:48,279 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:48,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:50:48,279 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:48,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:48,280 INFO L82 PathProgramCache]: Analyzing trace with hash -614513957, now seen corresponding path program 4 times [2021-03-10 17:50:48,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:48,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496854177] [2021-03-10 17:50:48,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:48,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496854177] [2021-03-10 17:50:48,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:48,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:48,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509783019] [2021-03-10 17:50:48,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:48,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:48,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:48,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:48,701 INFO L87 Difference]: Start difference. First operand 2082 states and 5373 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:49,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:49,811 INFO L93 Difference]: Finished difference Result 2596 states and 6401 transitions. [2021-03-10 17:50:49,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:50:49,811 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:49,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:49,815 INFO L225 Difference]: With dead ends: 2596 [2021-03-10 17:50:49,815 INFO L226 Difference]: Without dead ends: 2596 [2021-03-10 17:50:49,816 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1017.3ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:50:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2021-03-10 17:50:49,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 2082. [2021-03-10 17:50:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2080 states have (on average 2.5831730769230767) internal successors, (5373), 2081 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:49,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 5373 transitions. [2021-03-10 17:50:49,864 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 5373 transitions. Word has length 88 [2021-03-10 17:50:49,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:49,864 INFO L480 AbstractCegarLoop]: Abstraction has 2082 states and 5373 transitions. [2021-03-10 17:50:49,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:49,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 5373 transitions. [2021-03-10 17:50:49,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:49,868 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:49,868 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:49,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:50:49,869 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:49,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:49,869 INFO L82 PathProgramCache]: Analyzing trace with hash -914842499, now seen corresponding path program 5 times [2021-03-10 17:50:49,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:49,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165859298] [2021-03-10 17:50:49,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:50,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165859298] [2021-03-10 17:50:50,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:50,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:50,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087158025] [2021-03-10 17:50:50,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:50,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:50,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:50,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:50,283 INFO L87 Difference]: Start difference. First operand 2082 states and 5373 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:51,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:51,401 INFO L93 Difference]: Finished difference Result 2677 states and 6590 transitions. [2021-03-10 17:50:51,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:50:51,401 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:51,404 INFO L225 Difference]: With dead ends: 2677 [2021-03-10 17:50:51,404 INFO L226 Difference]: Without dead ends: 2677 [2021-03-10 17:50:51,405 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1041.7ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:50:51,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2021-03-10 17:50:51,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2082. [2021-03-10 17:50:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2080 states have (on average 2.5831730769230767) internal successors, (5373), 2081 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 5373 transitions. [2021-03-10 17:50:51,446 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 5373 transitions. Word has length 88 [2021-03-10 17:50:51,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:51,447 INFO L480 AbstractCegarLoop]: Abstraction has 2082 states and 5373 transitions. [2021-03-10 17:50:51,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 5373 transitions. [2021-03-10 17:50:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:51,451 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:51,451 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:51,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:50:51,451 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:51,451 INFO L82 PathProgramCache]: Analyzing trace with hash -574966373, now seen corresponding path program 6 times [2021-03-10 17:50:51,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:51,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101709299] [2021-03-10 17:50:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:51,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:51,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101709299] [2021-03-10 17:50:51,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:51,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:50:51,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942183863] [2021-03-10 17:50:51,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:50:51,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:51,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:50:51,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:50:51,823 INFO L87 Difference]: Start difference. First operand 2082 states and 5373 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:52,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:52,827 INFO L93 Difference]: Finished difference Result 2295 states and 5789 transitions. [2021-03-10 17:50:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:50:52,827 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:52,831 INFO L225 Difference]: With dead ends: 2295 [2021-03-10 17:50:52,831 INFO L226 Difference]: Without dead ends: 2295 [2021-03-10 17:50:52,832 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 890.1ms TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:50:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2021-03-10 17:50:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 1947. [2021-03-10 17:50:52,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1945 states have (on average 2.6005141388174806) internal successors, (5058), 1946 states have internal predecessors, (5058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:52,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 5058 transitions. [2021-03-10 17:50:52,870 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 5058 transitions. Word has length 88 [2021-03-10 17:50:52,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:52,871 INFO L480 AbstractCegarLoop]: Abstraction has 1947 states and 5058 transitions. [2021-03-10 17:50:52,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:52,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 5058 transitions. [2021-03-10 17:50:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:52,874 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:52,875 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:52,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 17:50:52,875 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:52,875 INFO L82 PathProgramCache]: Analyzing trace with hash 420061967, now seen corresponding path program 7 times [2021-03-10 17:50:52,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:52,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889018223] [2021-03-10 17:50:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:53,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889018223] [2021-03-10 17:50:53,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:53,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:50:53,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847265946] [2021-03-10 17:50:53,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:50:53,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:53,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:50:53,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:50:53,481 INFO L87 Difference]: Start difference. First operand 1947 states and 5058 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:54,202 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:50:54,346 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:50:54,710 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:50:54,889 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:50:55,110 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:50:55,351 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:50:55,576 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:50:55,825 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:50:55,991 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:50:56,154 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-10 17:50:56,332 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-03-10 17:50:56,475 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:50:56,623 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-03-10 17:50:56,771 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 17:50:56,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:50:56,776 INFO L93 Difference]: Finished difference Result 3579 states and 8927 transitions. [2021-03-10 17:50:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:50:56,776 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:50:56,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:50:56,781 INFO L225 Difference]: With dead ends: 3579 [2021-03-10 17:50:56,781 INFO L226 Difference]: Without dead ends: 3579 [2021-03-10 17:50:56,782 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3031.1ms TimeCoverageRelationStatistics Valid=529, Invalid=1541, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:50:56,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2021-03-10 17:50:56,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 2073. [2021-03-10 17:50:56,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2071 states have (on average 2.607436021245775) internal successors, (5400), 2072 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 5400 transitions. [2021-03-10 17:50:56,827 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 5400 transitions. Word has length 88 [2021-03-10 17:50:56,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:50:56,827 INFO L480 AbstractCegarLoop]: Abstraction has 2073 states and 5400 transitions. [2021-03-10 17:50:56,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:56,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 5400 transitions. [2021-03-10 17:50:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:50:56,831 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:50:56,831 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:50:56,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-10 17:50:56,831 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:50:56,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:50:56,832 INFO L82 PathProgramCache]: Analyzing trace with hash 51581903, now seen corresponding path program 8 times [2021-03-10 17:50:56,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:50:56,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558478131] [2021-03-10 17:50:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:50:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:50:57,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:50:57,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558478131] [2021-03-10 17:50:57,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:50:57,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:50:57,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40689255] [2021-03-10 17:50:57,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:50:57,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:50:57,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:50:57,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:50:57,433 INFO L87 Difference]: Start difference. First operand 2073 states and 5400 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:50:58,158 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:50:58,335 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:50:58,505 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:50:58,732 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:50:58,955 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:50:59,189 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:50:59,582 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-03-10 17:50:59,900 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:51:00,127 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:51:00,346 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:51:00,558 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:51:00,772 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:00,779 INFO L93 Difference]: Finished difference Result 3337 states and 8454 transitions. [2021-03-10 17:51:00,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 17:51:00,779 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:00,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:00,783 INFO L225 Difference]: With dead ends: 3337 [2021-03-10 17:51:00,783 INFO L226 Difference]: Without dead ends: 3337 [2021-03-10 17:51:00,784 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3119.8ms TimeCoverageRelationStatistics Valid=532, Invalid=1360, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 17:51:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2021-03-10 17:51:00,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 2370. [2021-03-10 17:51:00,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2368 states have (on average 2.6427364864864864) internal successors, (6258), 2369 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 6258 transitions. [2021-03-10 17:51:00,828 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 6258 transitions. Word has length 88 [2021-03-10 17:51:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:00,828 INFO L480 AbstractCegarLoop]: Abstraction has 2370 states and 6258 transitions. [2021-03-10 17:51:00,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 6258 transitions. [2021-03-10 17:51:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:00,832 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:00,832 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:00,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-10 17:51:00,833 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:00,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1707979535, now seen corresponding path program 9 times [2021-03-10 17:51:00,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:00,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015069123] [2021-03-10 17:51:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:01,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015069123] [2021-03-10 17:51:01,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:01,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:01,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773175364] [2021-03-10 17:51:01,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:01,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:01,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:01,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:01,397 INFO L87 Difference]: Start difference. First operand 2370 states and 6258 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:02,262 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:02,434 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:02,665 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:02,883 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:51:03,114 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:51:03,518 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:03,754 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:04,090 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:51:04,304 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:51:04,526 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:51:04,741 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:51:04,976 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:04,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:04,983 INFO L93 Difference]: Finished difference Result 3219 states and 8154 transitions. [2021-03-10 17:51:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 17:51:04,984 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:04,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:04,986 INFO L225 Difference]: With dead ends: 3219 [2021-03-10 17:51:04,986 INFO L226 Difference]: Without dead ends: 3219 [2021-03-10 17:51:04,987 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3282.6ms TimeCoverageRelationStatistics Valid=541, Invalid=1439, Unknown=0, NotChecked=0, Total=1980 [2021-03-10 17:51:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2021-03-10 17:51:05,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 2370. [2021-03-10 17:51:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2368 states have (on average 2.6427364864864864) internal successors, (6258), 2369 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 6258 transitions. [2021-03-10 17:51:05,026 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 6258 transitions. Word has length 88 [2021-03-10 17:51:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:05,027 INFO L480 AbstractCegarLoop]: Abstraction has 2370 states and 6258 transitions. [2021-03-10 17:51:05,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 6258 transitions. [2021-03-10 17:51:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:05,031 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:05,031 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:05,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-10 17:51:05,031 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:05,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:05,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1140815857, now seen corresponding path program 10 times [2021-03-10 17:51:05,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:05,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762907758] [2021-03-10 17:51:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:05,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762907758] [2021-03-10 17:51:05,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:05,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:05,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116247666] [2021-03-10 17:51:05,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:05,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:05,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:05,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:05,590 INFO L87 Difference]: Start difference. First operand 2370 states and 6258 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:06,388 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:06,575 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:06,802 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:07,155 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:07,382 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:07,601 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:07,892 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-03-10 17:51:08,099 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-03-10 17:51:08,294 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-03-10 17:51:08,500 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-03-10 17:51:08,676 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:08,876 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-03-10 17:51:09,076 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-03-10 17:51:09,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:09,087 INFO L93 Difference]: Finished difference Result 3305 states and 8319 transitions. [2021-03-10 17:51:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:09,090 INFO L225 Difference]: With dead ends: 3305 [2021-03-10 17:51:09,090 INFO L226 Difference]: Without dead ends: 3305 [2021-03-10 17:51:09,091 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3256.7ms TimeCoverageRelationStatistics Valid=559, Invalid=1511, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2021-03-10 17:51:09,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 2370. [2021-03-10 17:51:09,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2368 states have (on average 2.6427364864864864) internal successors, (6258), 2369 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 6258 transitions. [2021-03-10 17:51:09,151 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 6258 transitions. Word has length 88 [2021-03-10 17:51:09,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:09,151 INFO L480 AbstractCegarLoop]: Abstraction has 2370 states and 6258 transitions. [2021-03-10 17:51:09,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 6258 transitions. [2021-03-10 17:51:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:09,158 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:09,158 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:09,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-10 17:51:09,158 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:09,159 INFO L82 PathProgramCache]: Analyzing trace with hash 470098703, now seen corresponding path program 11 times [2021-03-10 17:51:09,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:09,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969248016] [2021-03-10 17:51:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:09,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969248016] [2021-03-10 17:51:09,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:09,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:09,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135587995] [2021-03-10 17:51:09,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:09,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:09,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:09,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:09,818 INFO L87 Difference]: Start difference. First operand 2370 states and 6258 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:10,731 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:10,904 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:11,284 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:11,477 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:11,687 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:11,909 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:12,185 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-03-10 17:51:12,356 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-03-10 17:51:12,529 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-03-10 17:51:12,710 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-03-10 17:51:12,863 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:13,037 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-03-10 17:51:13,229 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-03-10 17:51:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:13,239 INFO L93 Difference]: Finished difference Result 3356 states and 8433 transitions. [2021-03-10 17:51:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:13,240 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:13,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:13,242 INFO L225 Difference]: With dead ends: 3356 [2021-03-10 17:51:13,242 INFO L226 Difference]: Without dead ends: 3356 [2021-03-10 17:51:13,243 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 3209.4ms TimeCoverageRelationStatistics Valid=544, Invalid=1526, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2021-03-10 17:51:13,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 2370. [2021-03-10 17:51:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2368 states have (on average 2.6427364864864864) internal successors, (6258), 2369 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:13,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 6258 transitions. [2021-03-10 17:51:13,280 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 6258 transitions. Word has length 88 [2021-03-10 17:51:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:13,280 INFO L480 AbstractCegarLoop]: Abstraction has 2370 states and 6258 transitions. [2021-03-10 17:51:13,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 6258 transitions. [2021-03-10 17:51:13,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:13,284 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:13,284 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:13,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-10 17:51:13,285 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:13,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:13,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1798862833, now seen corresponding path program 12 times [2021-03-10 17:51:13,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:13,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092508374] [2021-03-10 17:51:13,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:13,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092508374] [2021-03-10 17:51:13,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:13,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:13,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298314338] [2021-03-10 17:51:13,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:13,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:13,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:13,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:13,920 INFO L87 Difference]: Start difference. First operand 2370 states and 6258 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:15,119 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:51:15,289 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:15,500 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:15,714 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:15,967 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:16,332 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:51:16,463 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-03-10 17:51:16,600 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-03-10 17:51:16,846 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-03-10 17:51:16,980 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-03-10 17:51:16,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:16,988 INFO L93 Difference]: Finished difference Result 3131 states and 7964 transitions. [2021-03-10 17:51:16,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:16,989 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:16,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:16,991 INFO L225 Difference]: With dead ends: 3131 [2021-03-10 17:51:16,991 INFO L226 Difference]: Without dead ends: 3131 [2021-03-10 17:51:16,992 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2894.3ms TimeCoverageRelationStatistics Valid=514, Invalid=1556, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:16,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2021-03-10 17:51:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 2376. [2021-03-10 17:51:17,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2374 states have (on average 2.642375737152485) internal successors, (6273), 2375 states have internal predecessors, (6273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 6273 transitions. [2021-03-10 17:51:17,033 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 6273 transitions. Word has length 88 [2021-03-10 17:51:17,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:17,034 INFO L480 AbstractCegarLoop]: Abstraction has 2376 states and 6273 transitions. [2021-03-10 17:51:17,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 6273 transitions. [2021-03-10 17:51:17,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:17,038 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:17,038 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:17,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-10 17:51:17,038 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:17,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:17,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1274102963, now seen corresponding path program 13 times [2021-03-10 17:51:17,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:17,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301555776] [2021-03-10 17:51:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:17,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301555776] [2021-03-10 17:51:17,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:17,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:17,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677925528] [2021-03-10 17:51:17,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:17,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:17,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:17,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:17,606 INFO L87 Difference]: Start difference. First operand 2376 states and 6273 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:18,448 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:18,813 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:51:18,992 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:19,196 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:19,408 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:19,631 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:19,918 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:51:20,067 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:51:20,221 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-10 17:51:20,384 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-03-10 17:51:20,524 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:51:20,676 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-03-10 17:51:20,841 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 17:51:20,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:20,849 INFO L93 Difference]: Finished difference Result 5697 states and 14417 transitions. [2021-03-10 17:51:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:20,849 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:20,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:20,853 INFO L225 Difference]: With dead ends: 5697 [2021-03-10 17:51:20,853 INFO L226 Difference]: Without dead ends: 5697 [2021-03-10 17:51:20,854 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2923.2ms TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:20,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5697 states. [2021-03-10 17:51:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5697 to 2453. [2021-03-10 17:51:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2451 states have (on average 2.653610771113831) internal successors, (6504), 2452 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 6504 transitions. [2021-03-10 17:51:20,902 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 6504 transitions. Word has length 88 [2021-03-10 17:51:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:20,902 INFO L480 AbstractCegarLoop]: Abstraction has 2453 states and 6504 transitions. [2021-03-10 17:51:20,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:20,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 6504 transitions. [2021-03-10 17:51:20,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:20,906 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:20,906 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:20,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-10 17:51:20,906 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:20,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:20,907 INFO L82 PathProgramCache]: Analyzing trace with hash 905622899, now seen corresponding path program 14 times [2021-03-10 17:51:20,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:20,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634460676] [2021-03-10 17:51:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:21,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:21,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634460676] [2021-03-10 17:51:21,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:21,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:21,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454028044] [2021-03-10 17:51:21,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:21,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:21,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:21,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:21,486 INFO L87 Difference]: Start difference. First operand 2453 states and 6504 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:22,305 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:22,481 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:22,740 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:22,960 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:51:23,188 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:51:23,571 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-03-10 17:51:23,892 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:51:24,102 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:51:24,322 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:51:24,558 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:51:24,771 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:24,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:24,779 INFO L93 Difference]: Finished difference Result 5455 states and 13944 transitions. [2021-03-10 17:51:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 17:51:24,779 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:24,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:24,783 INFO L225 Difference]: With dead ends: 5455 [2021-03-10 17:51:24,783 INFO L226 Difference]: Without dead ends: 5455 [2021-03-10 17:51:24,783 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3068.4ms TimeCoverageRelationStatistics Valid=531, Invalid=1361, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 17:51:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2021-03-10 17:51:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 2585. [2021-03-10 17:51:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2583 states have (on average 2.671312427409988) internal successors, (6900), 2584 states have internal predecessors, (6900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:24,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 6900 transitions. [2021-03-10 17:51:24,828 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 6900 transitions. Word has length 88 [2021-03-10 17:51:24,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:24,829 INFO L480 AbstractCegarLoop]: Abstraction has 2585 states and 6900 transitions. [2021-03-10 17:51:24,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 6900 transitions. [2021-03-10 17:51:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:24,833 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:24,833 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:24,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-10 17:51:24,833 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:24,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:24,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1732946765, now seen corresponding path program 15 times [2021-03-10 17:51:24,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:24,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940548233] [2021-03-10 17:51:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:25,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940548233] [2021-03-10 17:51:25,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:25,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:25,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4244172] [2021-03-10 17:51:25,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:25,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:25,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:25,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:25,475 INFO L87 Difference]: Start difference. First operand 2585 states and 6900 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:26,302 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:26,500 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:26,737 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:26,958 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:51:27,190 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:51:27,579 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:27,789 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:28,149 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:51:28,376 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:51:28,608 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:51:28,826 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:51:29,046 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:29,053 INFO L93 Difference]: Finished difference Result 5337 states and 13644 transitions. [2021-03-10 17:51:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 17:51:29,053 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:29,057 INFO L225 Difference]: With dead ends: 5337 [2021-03-10 17:51:29,057 INFO L226 Difference]: Without dead ends: 5337 [2021-03-10 17:51:29,057 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3323.7ms TimeCoverageRelationStatistics Valid=540, Invalid=1440, Unknown=0, NotChecked=0, Total=1980 [2021-03-10 17:51:29,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2021-03-10 17:51:29,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 2552. [2021-03-10 17:51:29,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 2.6670588235294117) internal successors, (6801), 2551 states have internal predecessors, (6801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 6801 transitions. [2021-03-10 17:51:29,106 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 6801 transitions. Word has length 88 [2021-03-10 17:51:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:29,107 INFO L480 AbstractCegarLoop]: Abstraction has 2552 states and 6801 transitions. [2021-03-10 17:51:29,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 6801 transitions. [2021-03-10 17:51:29,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:29,111 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:29,111 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:29,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-10 17:51:29,111 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:29,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:29,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1994856853, now seen corresponding path program 16 times [2021-03-10 17:51:29,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:29,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799959352] [2021-03-10 17:51:29,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:29,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799959352] [2021-03-10 17:51:29,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:29,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:29,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609620625] [2021-03-10 17:51:29,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:29,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:29,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:29,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:29,749 INFO L87 Difference]: Start difference. First operand 2552 states and 6801 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:30,603 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:30,780 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:31,016 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:31,379 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:31,585 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:31,805 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:32,120 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-03-10 17:51:32,329 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-03-10 17:51:32,529 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-03-10 17:51:32,737 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-03-10 17:51:32,916 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:33,117 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-03-10 17:51:33,319 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-03-10 17:51:33,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:33,329 INFO L93 Difference]: Finished difference Result 5423 states and 13809 transitions. [2021-03-10 17:51:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:33,330 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:33,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:33,333 INFO L225 Difference]: With dead ends: 5423 [2021-03-10 17:51:33,333 INFO L226 Difference]: Without dead ends: 5423 [2021-03-10 17:51:33,333 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 3366.7ms TimeCoverageRelationStatistics Valid=558, Invalid=1512, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2021-03-10 17:51:33,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 2519. [2021-03-10 17:51:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2517 states have (on average 2.6626936829559) internal successors, (6702), 2518 states have internal predecessors, (6702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 6702 transitions. [2021-03-10 17:51:33,373 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 6702 transitions. Word has length 88 [2021-03-10 17:51:33,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:33,373 INFO L480 AbstractCegarLoop]: Abstraction has 2519 states and 6702 transitions. [2021-03-10 17:51:33,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:33,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 6702 transitions. [2021-03-10 17:51:33,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:33,377 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:33,377 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:33,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-10 17:51:33,377 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:33,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:33,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1324139699, now seen corresponding path program 17 times [2021-03-10 17:51:33,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:33,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538441661] [2021-03-10 17:51:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:34,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538441661] [2021-03-10 17:51:34,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:34,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:34,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977914658] [2021-03-10 17:51:34,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:34,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:34,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:34,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:34,022 INFO L87 Difference]: Start difference. First operand 2519 states and 6702 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:34,942 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:35,120 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:35,496 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:35,692 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:35,906 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:36,139 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:36,524 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-03-10 17:51:36,701 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-03-10 17:51:36,876 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-03-10 17:51:37,061 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-03-10 17:51:37,235 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:37,413 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-03-10 17:51:37,593 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-03-10 17:51:37,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:37,604 INFO L93 Difference]: Finished difference Result 5474 states and 13923 transitions. [2021-03-10 17:51:37,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:37,604 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:37,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:37,608 INFO L225 Difference]: With dead ends: 5474 [2021-03-10 17:51:37,608 INFO L226 Difference]: Without dead ends: 5474 [2021-03-10 17:51:37,608 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 3283.1ms TimeCoverageRelationStatistics Valid=543, Invalid=1527, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:37,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2021-03-10 17:51:37,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 2420. [2021-03-10 17:51:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2418 states have (on average 2.6488833746898264) internal successors, (6405), 2419 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 6405 transitions. [2021-03-10 17:51:37,656 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 6405 transitions. Word has length 88 [2021-03-10 17:51:37,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:37,656 INFO L480 AbstractCegarLoop]: Abstraction has 2420 states and 6405 transitions. [2021-03-10 17:51:37,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 6405 transitions. [2021-03-10 17:51:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:37,660 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:37,660 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:37,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-10 17:51:37,660 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:37,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:37,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1642063467, now seen corresponding path program 18 times [2021-03-10 17:51:37,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:37,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568359225] [2021-03-10 17:51:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:38,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:38,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568359225] [2021-03-10 17:51:38,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:38,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:38,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691962434] [2021-03-10 17:51:38,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:38,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:38,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:38,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:38,302 INFO L87 Difference]: Start difference. First operand 2420 states and 6405 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:39,540 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:51:39,717 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:39,939 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:40,190 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:40,440 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:40,746 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:51:40,886 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:51:41,019 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-03-10 17:51:41,162 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-03-10 17:51:41,411 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-03-10 17:51:41,555 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-03-10 17:51:41,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:41,569 INFO L93 Difference]: Finished difference Result 5063 states and 12906 transitions. [2021-03-10 17:51:41,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:41,569 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:41,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:41,573 INFO L225 Difference]: With dead ends: 5063 [2021-03-10 17:51:41,573 INFO L226 Difference]: Without dead ends: 5063 [2021-03-10 17:51:41,573 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 2851.9ms TimeCoverageRelationStatistics Valid=513, Invalid=1557, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5063 states. [2021-03-10 17:51:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5063 to 2387. [2021-03-10 17:51:41,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2385 states have (on average 2.6440251572327043) internal successors, (6306), 2386 states have internal predecessors, (6306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:41,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 6306 transitions. [2021-03-10 17:51:41,618 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 6306 transitions. Word has length 88 [2021-03-10 17:51:41,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:41,619 INFO L480 AbstractCegarLoop]: Abstraction has 2387 states and 6306 transitions. [2021-03-10 17:51:41,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:41,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 6306 transitions. [2021-03-10 17:51:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:41,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:41,623 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:41,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-10 17:51:41,623 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:41,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:41,623 INFO L82 PathProgramCache]: Analyzing trace with hash 944455497, now seen corresponding path program 19 times [2021-03-10 17:51:41,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:41,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262801471] [2021-03-10 17:51:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:42,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262801471] [2021-03-10 17:51:42,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:42,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:42,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554312246] [2021-03-10 17:51:42,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:42,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:42,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:42,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:42,232 INFO L87 Difference]: Start difference. First operand 2387 states and 6306 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:43,083 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:43,438 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:51:43,606 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:51:43,812 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:44,028 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:44,251 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:44,530 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:51:44,681 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:51:44,848 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-10 17:51:45,011 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-03-10 17:51:45,152 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:51:45,305 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-03-10 17:51:45,462 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 17:51:45,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:45,471 INFO L93 Difference]: Finished difference Result 4681 states and 11772 transitions. [2021-03-10 17:51:45,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:45,471 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:45,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:45,474 INFO L225 Difference]: With dead ends: 4681 [2021-03-10 17:51:45,474 INFO L226 Difference]: Without dead ends: 4681 [2021-03-10 17:51:45,475 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3031.1ms TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:45,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2021-03-10 17:51:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 2431. [2021-03-10 17:51:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2431 states, 2429 states have (on average 2.650473445862495) internal successors, (6438), 2430 states have internal predecessors, (6438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 6438 transitions. [2021-03-10 17:51:45,508 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 6438 transitions. Word has length 88 [2021-03-10 17:51:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:45,508 INFO L480 AbstractCegarLoop]: Abstraction has 2431 states and 6438 transitions. [2021-03-10 17:51:45,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 6438 transitions. [2021-03-10 17:51:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:45,512 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:45,512 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:45,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-10 17:51:45,513 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:45,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:45,513 INFO L82 PathProgramCache]: Analyzing trace with hash 575975433, now seen corresponding path program 20 times [2021-03-10 17:51:45,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:45,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833277161] [2021-03-10 17:51:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:46,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833277161] [2021-03-10 17:51:46,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:46,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:46,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320133975] [2021-03-10 17:51:46,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:46,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:46,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:46,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:46,165 INFO L87 Difference]: Start difference. First operand 2431 states and 6438 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:47,059 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:47,253 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:47,496 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:47,721 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:51:47,954 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:51:48,351 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-03-10 17:51:48,675 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:51:48,892 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:51:49,118 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:51:49,338 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:51:49,584 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:49,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:49,592 INFO L93 Difference]: Finished difference Result 5414 states and 13762 transitions. [2021-03-10 17:51:49,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 17:51:49,592 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:49,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:49,596 INFO L225 Difference]: With dead ends: 5414 [2021-03-10 17:51:49,596 INFO L226 Difference]: Without dead ends: 5414 [2021-03-10 17:51:49,596 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3199.6ms TimeCoverageRelationStatistics Valid=531, Invalid=1361, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 17:51:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2021-03-10 17:51:49,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 2563. [2021-03-10 17:51:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2561 states have (on average 2.668488871534557) internal successors, (6834), 2562 states have internal predecessors, (6834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:49,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 6834 transitions. [2021-03-10 17:51:49,639 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 6834 transitions. Word has length 88 [2021-03-10 17:51:49,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:49,639 INFO L480 AbstractCegarLoop]: Abstraction has 2563 states and 6834 transitions. [2021-03-10 17:51:49,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 6834 transitions. [2021-03-10 17:51:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:49,644 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:49,644 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:49,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-10 17:51:49,644 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:49,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:49,644 INFO L82 PathProgramCache]: Analyzing trace with hash -2062594231, now seen corresponding path program 21 times [2021-03-10 17:51:49,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:49,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670490468] [2021-03-10 17:51:49,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:50,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670490468] [2021-03-10 17:51:50,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:50,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:50,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240951217] [2021-03-10 17:51:50,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:50,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:50,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:50,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:50,327 INFO L87 Difference]: Start difference. First operand 2563 states and 6834 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:51,225 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:51,414 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:51,670 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:51,913 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:51:52,157 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:51:52,579 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:52,792 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:53,169 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:51:53,390 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:51:53,624 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:51:53,849 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:51:54,080 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:54,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:54,088 INFO L93 Difference]: Finished difference Result 5296 states and 13462 transitions. [2021-03-10 17:51:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 17:51:54,089 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:54,093 INFO L225 Difference]: With dead ends: 5296 [2021-03-10 17:51:54,093 INFO L226 Difference]: Without dead ends: 5296 [2021-03-10 17:51:54,094 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3421.5ms TimeCoverageRelationStatistics Valid=540, Invalid=1440, Unknown=0, NotChecked=0, Total=1980 [2021-03-10 17:51:54,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5296 states. [2021-03-10 17:51:54,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5296 to 2530. [2021-03-10 17:51:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2528 states have (on average 2.664161392405063) internal successors, (6735), 2529 states have internal predecessors, (6735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 6735 transitions. [2021-03-10 17:51:54,157 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 6735 transitions. Word has length 88 [2021-03-10 17:51:54,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:54,157 INFO L480 AbstractCegarLoop]: Abstraction has 2530 states and 6735 transitions. [2021-03-10 17:51:54,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 6735 transitions. [2021-03-10 17:51:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:54,161 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:54,161 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:54,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-10 17:51:54,161 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:54,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:54,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1665209387, now seen corresponding path program 22 times [2021-03-10 17:51:54,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:54,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750866075] [2021-03-10 17:51:54,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:54,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750866075] [2021-03-10 17:51:54,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:54,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:54,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679398692] [2021-03-10 17:51:54,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:54,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:54,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:54,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:54,736 INFO L87 Difference]: Start difference. First operand 2530 states and 6735 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:55,603 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:51:55,797 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:51:56,041 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:51:56,419 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:56,645 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:51:56,870 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:51:57,194 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-03-10 17:51:57,396 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-03-10 17:51:57,599 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-03-10 17:51:57,812 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-03-10 17:51:57,996 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:51:58,202 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-03-10 17:51:58,411 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-03-10 17:51:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:51:58,422 INFO L93 Difference]: Finished difference Result 5382 states and 13627 transitions. [2021-03-10 17:51:58,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:51:58,423 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:51:58,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:51:58,426 INFO L225 Difference]: With dead ends: 5382 [2021-03-10 17:51:58,426 INFO L226 Difference]: Without dead ends: 5382 [2021-03-10 17:51:58,427 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 3372.4ms TimeCoverageRelationStatistics Valid=558, Invalid=1512, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:51:58,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5382 states. [2021-03-10 17:51:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5382 to 2497. [2021-03-10 17:51:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2495 states have (on average 2.6597194388777554) internal successors, (6636), 2496 states have internal predecessors, (6636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:58,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 6636 transitions. [2021-03-10 17:51:58,470 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 6636 transitions. Word has length 88 [2021-03-10 17:51:58,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:51:58,471 INFO L480 AbstractCegarLoop]: Abstraction has 2497 states and 6636 transitions. [2021-03-10 17:51:58,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:51:58,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 6636 transitions. [2021-03-10 17:51:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:51:58,475 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:51:58,475 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:51:58,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-10 17:51:58,475 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:51:58,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:51:58,475 INFO L82 PathProgramCache]: Analyzing trace with hash 994492233, now seen corresponding path program 23 times [2021-03-10 17:51:58,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:51:58,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090264198] [2021-03-10 17:51:58,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:51:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:51:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:51:59,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090264198] [2021-03-10 17:51:59,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:51:59,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:51:59,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983920353] [2021-03-10 17:51:59,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:51:59,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:51:59,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:51:59,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:51:59,111 INFO L87 Difference]: Start difference. First operand 2497 states and 6636 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:00,003 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:52:00,192 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:52:00,613 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:52:00,818 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:52:01,039 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:52:01,297 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:52:01,624 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-03-10 17:52:01,808 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-03-10 17:52:01,987 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-03-10 17:52:02,177 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-03-10 17:52:02,337 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:52:02,520 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-03-10 17:52:02,710 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-03-10 17:52:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:02,720 INFO L93 Difference]: Finished difference Result 5433 states and 13741 transitions. [2021-03-10 17:52:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:52:02,721 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:02,724 INFO L225 Difference]: With dead ends: 5433 [2021-03-10 17:52:02,724 INFO L226 Difference]: Without dead ends: 5433 [2021-03-10 17:52:02,725 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 3266.0ms TimeCoverageRelationStatistics Valid=543, Invalid=1527, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:52:02,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2021-03-10 17:52:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 2398. [2021-03-10 17:52:02,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2396 states have (on average 2.6456594323873124) internal successors, (6339), 2397 states have internal predecessors, (6339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 6339 transitions. [2021-03-10 17:52:02,761 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 6339 transitions. Word has length 88 [2021-03-10 17:52:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:02,761 INFO L480 AbstractCegarLoop]: Abstraction has 2398 states and 6339 transitions. [2021-03-10 17:52:02,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 6339 transitions. [2021-03-10 17:52:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:02,764 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:02,764 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:02,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-10 17:52:02,764 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:02,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:02,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1749626155, now seen corresponding path program 24 times [2021-03-10 17:52:02,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:02,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431463821] [2021-03-10 17:52:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:03,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:03,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431463821] [2021-03-10 17:52:03,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:03,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:03,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095541067] [2021-03-10 17:52:03,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:03,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:03,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:03,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:03,323 INFO L87 Difference]: Start difference. First operand 2398 states and 6339 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:04,402 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:52:04,552 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:52:04,738 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:52:04,968 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:52:05,193 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:52:05,427 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:52:05,711 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:52:05,852 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:52:06,009 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-03-10 17:52:06,161 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-03-10 17:52:06,285 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:52:06,431 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-03-10 17:52:06,578 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-03-10 17:52:06,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:06,587 INFO L93 Difference]: Finished difference Result 4394 states and 11005 transitions. [2021-03-10 17:52:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:52:06,587 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:06,590 INFO L225 Difference]: With dead ends: 4394 [2021-03-10 17:52:06,590 INFO L226 Difference]: Without dead ends: 4394 [2021-03-10 17:52:06,590 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 2916.4ms TimeCoverageRelationStatistics Valid=513, Invalid=1557, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:52:06,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2021-03-10 17:52:06,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 2400. [2021-03-10 17:52:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2400 states, 2398 states have (on average 2.645537948290242) internal successors, (6344), 2399 states have internal predecessors, (6344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:06,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 6344 transitions. [2021-03-10 17:52:06,619 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 6344 transitions. Word has length 88 [2021-03-10 17:52:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:06,619 INFO L480 AbstractCegarLoop]: Abstraction has 2400 states and 6344 transitions. [2021-03-10 17:52:06,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 6344 transitions. [2021-03-10 17:52:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:06,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:06,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:06,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-10 17:52:06,622 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:06,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:06,622 INFO L82 PathProgramCache]: Analyzing trace with hash -65740713, now seen corresponding path program 25 times [2021-03-10 17:52:06,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:06,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096313597] [2021-03-10 17:52:06,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:06,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096313597] [2021-03-10 17:52:06,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:06,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:06,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455390241] [2021-03-10 17:52:06,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:06,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:06,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:06,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:06,979 INFO L87 Difference]: Start difference. First operand 2400 states and 6344 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:08,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:08,142 INFO L93 Difference]: Finished difference Result 3124 states and 7791 transitions. [2021-03-10 17:52:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:08,142 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:08,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:08,145 INFO L225 Difference]: With dead ends: 3124 [2021-03-10 17:52:08,145 INFO L226 Difference]: Without dead ends: 3124 [2021-03-10 17:52:08,145 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1051.7ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:08,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2021-03-10 17:52:08,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2438. [2021-03-10 17:52:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 2436 states have (on average 2.6424466338259442) internal successors, (6437), 2437 states have internal predecessors, (6437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 6437 transitions. [2021-03-10 17:52:08,198 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 6437 transitions. Word has length 88 [2021-03-10 17:52:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:08,199 INFO L480 AbstractCegarLoop]: Abstraction has 2438 states and 6437 transitions. [2021-03-10 17:52:08,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 6437 transitions. [2021-03-10 17:52:08,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:08,201 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:08,201 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:08,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-10 17:52:08,201 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:08,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:08,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1617217735, now seen corresponding path program 26 times [2021-03-10 17:52:08,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:08,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247860651] [2021-03-10 17:52:08,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:08,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247860651] [2021-03-10 17:52:08,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:08,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:08,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509003002] [2021-03-10 17:52:08,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:08,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:08,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:08,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:08,822 INFO L87 Difference]: Start difference. First operand 2438 states and 6437 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:10,039 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:52:10,218 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:52:10,413 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:52:10,636 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:10,840 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-10 17:52:11,083 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:52:11,390 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 17:52:11,527 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-03-10 17:52:11,667 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:52:11,812 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:52:11,969 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:52:12,106 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:52:12,245 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 17:52:12,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:12,250 INFO L93 Difference]: Finished difference Result 4526 states and 11297 transitions. [2021-03-10 17:52:12,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:52:12,250 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:12,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:12,253 INFO L225 Difference]: With dead ends: 4526 [2021-03-10 17:52:12,253 INFO L226 Difference]: Without dead ends: 4526 [2021-03-10 17:52:12,254 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3114.4ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:52:12,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2021-03-10 17:52:12,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 2450. [2021-03-10 17:52:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 2.641748366013072) internal successors, (6467), 2449 states have internal predecessors, (6467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 6467 transitions. [2021-03-10 17:52:12,287 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 6467 transitions. Word has length 88 [2021-03-10 17:52:12,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:12,288 INFO L480 AbstractCegarLoop]: Abstraction has 2450 states and 6467 transitions. [2021-03-10 17:52:12,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 6467 transitions. [2021-03-10 17:52:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:12,290 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:12,290 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:12,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-10 17:52:12,291 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:12,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:12,291 INFO L82 PathProgramCache]: Analyzing trace with hash -292939901, now seen corresponding path program 27 times [2021-03-10 17:52:12,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:12,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685209351] [2021-03-10 17:52:12,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:12,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:12,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685209351] [2021-03-10 17:52:12,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:12,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:12,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574488722] [2021-03-10 17:52:12,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:12,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:12,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:12,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:12,935 INFO L87 Difference]: Start difference. First operand 2450 states and 6467 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,116 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:52:14,293 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:52:14,484 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:52:14,704 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:52:14,891 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:52:15,156 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:52:15,471 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 17:52:15,608 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-03-10 17:52:15,742 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:52:15,892 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:52:16,012 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:52:16,153 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:52:16,292 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 17:52:16,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:16,301 INFO L93 Difference]: Finished difference Result 4640 states and 11532 transitions. [2021-03-10 17:52:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:52:16,302 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:16,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:16,305 INFO L225 Difference]: With dead ends: 4640 [2021-03-10 17:52:16,305 INFO L226 Difference]: Without dead ends: 4640 [2021-03-10 17:52:16,305 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3141.6ms TimeCoverageRelationStatistics Valid=549, Invalid=1613, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:52:16,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4640 states. [2021-03-10 17:52:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4640 to 2450. [2021-03-10 17:52:16,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 2.641748366013072) internal successors, (6467), 2449 states have internal predecessors, (6467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 6467 transitions. [2021-03-10 17:52:16,337 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 6467 transitions. Word has length 88 [2021-03-10 17:52:16,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:16,337 INFO L480 AbstractCegarLoop]: Abstraction has 2450 states and 6467 transitions. [2021-03-10 17:52:16,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 6467 transitions. [2021-03-10 17:52:16,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:16,339 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:16,339 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:16,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-10 17:52:16,339 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:16,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:16,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1548162933, now seen corresponding path program 28 times [2021-03-10 17:52:16,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:16,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253550869] [2021-03-10 17:52:16,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:16,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:16,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253550869] [2021-03-10 17:52:16,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:16,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:16,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195675679] [2021-03-10 17:52:16,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:16,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:16,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:16,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:16,978 INFO L87 Difference]: Start difference. First operand 2450 states and 6467 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,713 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:52:18,188 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:52:18,352 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 17:52:18,597 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 17:52:18,789 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:52:19,013 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:52:19,199 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:52:19,444 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:52:19,751 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 17:52:19,890 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-03-10 17:52:20,023 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:52:20,187 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:52:20,446 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:52:20,588 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 17:52:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:20,596 INFO L93 Difference]: Finished difference Result 4583 states and 11420 transitions. [2021-03-10 17:52:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:52:20,597 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:20,600 INFO L225 Difference]: With dead ends: 4583 [2021-03-10 17:52:20,600 INFO L226 Difference]: Without dead ends: 4583 [2021-03-10 17:52:20,600 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 3310.0ms TimeCoverageRelationStatistics Valid=582, Invalid=1674, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:52:20,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2021-03-10 17:52:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 2450. [2021-03-10 17:52:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 2.641748366013072) internal successors, (6467), 2449 states have internal predecessors, (6467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 6467 transitions. [2021-03-10 17:52:20,629 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 6467 transitions. Word has length 88 [2021-03-10 17:52:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:20,629 INFO L480 AbstractCegarLoop]: Abstraction has 2450 states and 6467 transitions. [2021-03-10 17:52:20,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 6467 transitions. [2021-03-10 17:52:20,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:20,631 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:20,631 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:20,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-10 17:52:20,631 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:20,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:20,632 INFO L82 PathProgramCache]: Analyzing trace with hash -234862539, now seen corresponding path program 29 times [2021-03-10 17:52:20,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:20,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786050338] [2021-03-10 17:52:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:21,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786050338] [2021-03-10 17:52:21,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:21,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:21,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865285523] [2021-03-10 17:52:21,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:21,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:21,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:21,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:21,021 INFO L87 Difference]: Start difference. First operand 2450 states and 6467 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:22,102 INFO L93 Difference]: Finished difference Result 3138 states and 8002 transitions. [2021-03-10 17:52:22,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:22,103 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:22,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:22,106 INFO L225 Difference]: With dead ends: 3138 [2021-03-10 17:52:22,106 INFO L226 Difference]: Without dead ends: 3138 [2021-03-10 17:52:22,106 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 990.6ms TimeCoverageRelationStatistics Valid=311, Invalid=745, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:52:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3138 states. [2021-03-10 17:52:22,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3138 to 2450. [2021-03-10 17:52:22,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 2.641748366013072) internal successors, (6467), 2449 states have internal predecessors, (6467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 6467 transitions. [2021-03-10 17:52:22,136 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 6467 transitions. Word has length 88 [2021-03-10 17:52:22,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:22,136 INFO L480 AbstractCegarLoop]: Abstraction has 2450 states and 6467 transitions. [2021-03-10 17:52:22,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 6467 transitions. [2021-03-10 17:52:22,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:22,138 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:22,139 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:22,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-10 17:52:22,139 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:22,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:22,139 INFO L82 PathProgramCache]: Analyzing trace with hash 788104279, now seen corresponding path program 30 times [2021-03-10 17:52:22,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:22,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389967098] [2021-03-10 17:52:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:22,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389967098] [2021-03-10 17:52:22,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:22,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:22,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265382402] [2021-03-10 17:52:22,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:22,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:22,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:22,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:22,583 INFO L87 Difference]: Start difference. First operand 2450 states and 6467 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:23,818 INFO L93 Difference]: Finished difference Result 3131 states and 7885 transitions. [2021-03-10 17:52:23,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:23,819 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:23,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:23,821 INFO L225 Difference]: With dead ends: 3131 [2021-03-10 17:52:23,821 INFO L226 Difference]: Without dead ends: 3131 [2021-03-10 17:52:23,822 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1129.8ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:23,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2021-03-10 17:52:23,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 2417. [2021-03-10 17:52:23,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2415 states have (on average 2.641407867494824) internal successors, (6379), 2416 states have internal predecessors, (6379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 6379 transitions. [2021-03-10 17:52:23,849 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 6379 transitions. Word has length 88 [2021-03-10 17:52:23,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:23,849 INFO L480 AbstractCegarLoop]: Abstraction has 2417 states and 6379 transitions. [2021-03-10 17:52:23,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 6379 transitions. [2021-03-10 17:52:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:23,852 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:23,852 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:23,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-10 17:52:23,852 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:23,853 INFO L82 PathProgramCache]: Analyzing trace with hash -850628969, now seen corresponding path program 31 times [2021-03-10 17:52:23,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:23,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292956819] [2021-03-10 17:52:23,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:24,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292956819] [2021-03-10 17:52:24,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:24,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:24,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379858112] [2021-03-10 17:52:24,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:24,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:24,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:24,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:24,474 INFO L87 Difference]: Start difference. First operand 2417 states and 6379 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,320 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:52:25,510 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:52:25,708 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:52:25,915 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:52:26,110 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:52:26,346 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-03-10 17:52:26,729 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:26,956 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2021-03-10 17:52:27,303 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:52:27,520 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:52:27,787 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:52:28,048 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2021-03-10 17:52:28,250 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:52:28,484 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-03-10 17:52:28,686 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:52:28,912 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2021-03-10 17:52:29,109 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:29,332 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:52:29,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:29,344 INFO L93 Difference]: Finished difference Result 5087 states and 12851 transitions. [2021-03-10 17:52:29,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:52:29,344 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:29,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:29,347 INFO L225 Difference]: With dead ends: 5087 [2021-03-10 17:52:29,347 INFO L226 Difference]: Without dead ends: 5087 [2021-03-10 17:52:29,348 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 4622.7ms TimeCoverageRelationStatistics Valid=777, Invalid=1773, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 17:52:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5087 states. [2021-03-10 17:52:29,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5087 to 2494. [2021-03-10 17:52:29,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2492 states have (on average 2.6524879614767256) internal successors, (6610), 2493 states have internal predecessors, (6610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:29,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 6610 transitions. [2021-03-10 17:52:29,378 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 6610 transitions. Word has length 88 [2021-03-10 17:52:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:29,379 INFO L480 AbstractCegarLoop]: Abstraction has 2494 states and 6610 transitions. [2021-03-10 17:52:29,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:29,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 6610 transitions. [2021-03-10 17:52:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:29,381 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:29,381 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:29,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-10 17:52:29,382 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:29,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:29,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1072157707, now seen corresponding path program 32 times [2021-03-10 17:52:29,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:29,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559243674] [2021-03-10 17:52:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:30,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559243674] [2021-03-10 17:52:30,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:30,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:30,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889452894] [2021-03-10 17:52:30,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:30,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:30,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:30,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:30,014 INFO L87 Difference]: Start difference. First operand 2494 states and 6610 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,889 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:52:31,090 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:52:31,298 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:52:31,514 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:52:31,709 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:52:31,963 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:52:32,388 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:32,590 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-10 17:52:32,820 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:52:33,217 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:52:33,424 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-03-10 17:52:33,618 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:52:33,834 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:52:34,039 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:52:34,276 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:52:34,478 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:52:34,696 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-03-10 17:52:34,896 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:35,103 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-03-10 17:52:35,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:35,114 INFO L93 Difference]: Finished difference Result 4874 states and 12313 transitions. [2021-03-10 17:52:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:52:35,115 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:35,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:35,118 INFO L225 Difference]: With dead ends: 4874 [2021-03-10 17:52:35,118 INFO L226 Difference]: Without dead ends: 4874 [2021-03-10 17:52:35,118 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 4650.8ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:52:35,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2021-03-10 17:52:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 2483. [2021-03-10 17:52:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 2.6509471987101976) internal successors, (6577), 2482 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 6577 transitions. [2021-03-10 17:52:35,145 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 6577 transitions. Word has length 88 [2021-03-10 17:52:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:35,145 INFO L480 AbstractCegarLoop]: Abstraction has 2483 states and 6577 transitions. [2021-03-10 17:52:35,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 6577 transitions. [2021-03-10 17:52:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:35,147 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:35,147 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:35,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-10 17:52:35,148 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:35,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:35,148 INFO L82 PathProgramCache]: Analyzing trace with hash -207804615, now seen corresponding path program 33 times [2021-03-10 17:52:35,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:35,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650924645] [2021-03-10 17:52:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:35,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650924645] [2021-03-10 17:52:35,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:35,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:35,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040992795] [2021-03-10 17:52:35,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:35,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:35,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:35,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:35,896 INFO L87 Difference]: Start difference. First operand 2483 states and 6577 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:36,785 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:52:36,981 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:52:37,182 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:52:37,402 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:52:37,811 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:52:38,006 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:38,222 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-10 17:52:38,467 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:52:38,855 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:52:39,082 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:52:39,294 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:52:39,475 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:52:39,669 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:52:39,868 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:39,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:39,876 INFO L93 Difference]: Finished difference Result 4414 states and 11113 transitions. [2021-03-10 17:52:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:52:39,876 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:39,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:39,880 INFO L225 Difference]: With dead ends: 4414 [2021-03-10 17:52:39,880 INFO L226 Difference]: Without dead ends: 4414 [2021-03-10 17:52:39,880 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3702.3ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:52:39,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4414 states. [2021-03-10 17:52:39,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4414 to 2483. [2021-03-10 17:52:39,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 2.6509471987101976) internal successors, (6577), 2482 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:39,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 6577 transitions. [2021-03-10 17:52:39,906 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 6577 transitions. Word has length 88 [2021-03-10 17:52:39,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:39,906 INFO L480 AbstractCegarLoop]: Abstraction has 2483 states and 6577 transitions. [2021-03-10 17:52:39,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 6577 transitions. [2021-03-10 17:52:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:39,908 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:39,908 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:39,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-10 17:52:39,908 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:39,909 INFO L82 PathProgramCache]: Analyzing trace with hash 470049889, now seen corresponding path program 34 times [2021-03-10 17:52:39,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:39,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729445669] [2021-03-10 17:52:39,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:40,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729445669] [2021-03-10 17:52:40,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:40,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:40,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583847126] [2021-03-10 17:52:40,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:40,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:40,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:40,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:40,587 INFO L87 Difference]: Start difference. First operand 2483 states and 6577 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:41,518 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:52:41,713 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:52:41,910 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:52:42,131 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2021-03-10 17:52:42,307 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-03-10 17:52:42,545 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:52:42,954 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:52:43,181 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:52:43,557 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-03-10 17:52:43,796 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-03-10 17:52:43,987 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-03-10 17:52:44,227 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2021-03-10 17:52:44,427 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:52:44,668 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-03-10 17:52:44,860 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-10 17:52:45,089 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-03-10 17:52:45,287 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:52:45,515 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:52:45,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:45,527 INFO L93 Difference]: Finished difference Result 5730 states and 14468 transitions. [2021-03-10 17:52:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:52:45,527 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:45,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:45,531 INFO L225 Difference]: With dead ends: 5730 [2021-03-10 17:52:45,531 INFO L226 Difference]: Without dead ends: 5730 [2021-03-10 17:52:45,531 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 4558.1ms TimeCoverageRelationStatistics Valid=784, Invalid=1766, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 17:52:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2021-03-10 17:52:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 2505. [2021-03-10 17:52:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2503 states have (on average 2.654015181781862) internal successors, (6643), 2504 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 6643 transitions. [2021-03-10 17:52:45,561 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 6643 transitions. Word has length 88 [2021-03-10 17:52:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:45,561 INFO L480 AbstractCegarLoop]: Abstraction has 2505 states and 6643 transitions. [2021-03-10 17:52:45,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 6643 transitions. [2021-03-10 17:52:45,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:45,563 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:45,563 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:45,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-10 17:52:45,563 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:45,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:45,564 INFO L82 PathProgramCache]: Analyzing trace with hash -172028511, now seen corresponding path program 35 times [2021-03-10 17:52:45,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:45,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478853640] [2021-03-10 17:52:45,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:46,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478853640] [2021-03-10 17:52:46,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:46,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:46,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976605775] [2021-03-10 17:52:46,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:46,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:46,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:46,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:46,193 INFO L87 Difference]: Start difference. First operand 2505 states and 6643 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:47,105 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:52:47,316 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:52:47,521 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:52:47,751 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2021-03-10 17:52:47,928 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:52:48,161 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2021-03-10 17:52:48,618 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-03-10 17:52:48,804 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:52:49,045 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:52:49,463 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:52:49,678 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-03-10 17:52:49,868 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:50,095 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-03-10 17:52:50,298 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:52:50,528 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2021-03-10 17:52:50,740 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:52:50,965 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:52:51,166 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:52:51,377 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-03-10 17:52:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:51,389 INFO L93 Difference]: Finished difference Result 5517 states and 13930 transitions. [2021-03-10 17:52:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:52:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:51,393 INFO L225 Difference]: With dead ends: 5517 [2021-03-10 17:52:51,393 INFO L226 Difference]: Without dead ends: 5517 [2021-03-10 17:52:51,393 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 4640.7ms TimeCoverageRelationStatistics Valid=780, Invalid=1872, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:52:51,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2021-03-10 17:52:51,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 2494. [2021-03-10 17:52:51,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2492 states have (on average 2.6524879614767256) internal successors, (6610), 2493 states have internal predecessors, (6610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:51,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 6610 transitions. [2021-03-10 17:52:51,423 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 6610 transitions. Word has length 88 [2021-03-10 17:52:51,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:51,423 INFO L480 AbstractCegarLoop]: Abstraction has 2494 states and 6610 transitions. [2021-03-10 17:52:51,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:51,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 6610 transitions. [2021-03-10 17:52:51,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:51,425 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:51,426 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:51,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-10 17:52:51,426 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:51,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:51,426 INFO L82 PathProgramCache]: Analyzing trace with hash 244523523, now seen corresponding path program 36 times [2021-03-10 17:52:51,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:51,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23049701] [2021-03-10 17:52:51,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:52,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23049701] [2021-03-10 17:52:52,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:52,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:52,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912503649] [2021-03-10 17:52:52,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:52,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:52,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:52,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:52,018 INFO L87 Difference]: Start difference. First operand 2494 states and 6610 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:52,919 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:52:53,120 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:52:53,321 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:52:53,531 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:52:53,916 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:52:54,104 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:52:54,311 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-03-10 17:52:54,553 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:52:54,929 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:52:55,119 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:55,340 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:52:55,515 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:52:55,703 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:52:55,903 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:52:55,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:55,911 INFO L93 Difference]: Finished difference Result 4969 states and 12568 transitions. [2021-03-10 17:52:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:52:55,912 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:52:55,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:55,915 INFO L225 Difference]: With dead ends: 4969 [2021-03-10 17:52:55,915 INFO L226 Difference]: Without dead ends: 4969 [2021-03-10 17:52:55,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3468.4ms TimeCoverageRelationStatistics Valid=594, Invalid=1568, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:52:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4969 states. [2021-03-10 17:52:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4969 to 2483. [2021-03-10 17:52:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 2.6509471987101976) internal successors, (6577), 2482 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 6577 transitions. [2021-03-10 17:52:55,947 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 6577 transitions. Word has length 88 [2021-03-10 17:52:55,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:55,947 INFO L480 AbstractCegarLoop]: Abstraction has 2483 states and 6577 transitions. [2021-03-10 17:52:55,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:55,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 6577 transitions. [2021-03-10 17:52:55,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:52:55,949 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:55,949 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:55,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-10 17:52:55,949 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:55,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:55,950 INFO L82 PathProgramCache]: Analyzing trace with hash -179593449, now seen corresponding path program 37 times [2021-03-10 17:52:55,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:55,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765234657] [2021-03-10 17:52:55,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:56,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:56,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765234657] [2021-03-10 17:52:56,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:56,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:52:56,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263633612] [2021-03-10 17:52:56,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:52:56,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:56,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:52:56,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:52:56,647 INFO L87 Difference]: Start difference. First operand 2483 states and 6577 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,498 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:52:57,714 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:52:58,065 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:52:58,250 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:52:58,454 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:52:58,659 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-10 17:52:58,901 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:52:59,230 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:52:59,409 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:52:59,589 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:52:59,775 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:52:59,929 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:53:00,116 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:53:00,296 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:53:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:00,306 INFO L93 Difference]: Finished difference Result 4411 states and 11044 transitions. [2021-03-10 17:53:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:53:00,307 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:00,310 INFO L225 Difference]: With dead ends: 4411 [2021-03-10 17:53:00,310 INFO L226 Difference]: Without dead ends: 4411 [2021-03-10 17:53:00,310 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 3495.7ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:53:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4411 states. [2021-03-10 17:53:00,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4411 to 2485. [2021-03-10 17:53:00,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2483 states have (on average 2.6508256141763997) internal successors, (6582), 2484 states have internal predecessors, (6582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 6582 transitions. [2021-03-10 17:53:00,338 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 6582 transitions. Word has length 88 [2021-03-10 17:53:00,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:00,338 INFO L480 AbstractCegarLoop]: Abstraction has 2485 states and 6582 transitions. [2021-03-10 17:53:00,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 6582 transitions. [2021-03-10 17:53:00,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:00,340 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:00,340 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:00,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-10 17:53:00,340 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:00,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:00,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1144684385, now seen corresponding path program 38 times [2021-03-10 17:53:00,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:00,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957087517] [2021-03-10 17:53:00,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:00,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957087517] [2021-03-10 17:53:00,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:00,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:00,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679190943] [2021-03-10 17:53:00,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:00,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:00,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:00,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:00,925 INFO L87 Difference]: Start difference. First operand 2485 states and 6582 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,821 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:02,027 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:53:02,444 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:53:02,632 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:53:02,852 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:53:03,040 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:53:03,283 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:53:03,649 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:53:03,832 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:53:04,008 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:53:04,191 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:53:04,345 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:53:04,522 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:53:04,703 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:53:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:04,714 INFO L93 Difference]: Finished difference Result 4316 states and 10853 transitions. [2021-03-10 17:53:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:53:04,714 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:04,718 INFO L225 Difference]: With dead ends: 4316 [2021-03-10 17:53:04,718 INFO L226 Difference]: Without dead ends: 4316 [2021-03-10 17:53:04,719 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 3398.2ms TimeCoverageRelationStatistics Valid=579, Invalid=1583, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:53:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4316 states. [2021-03-10 17:53:04,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4316 to 2483. [2021-03-10 17:53:04,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 2.6509471987101976) internal successors, (6577), 2482 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 6577 transitions. [2021-03-10 17:53:04,762 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 6577 transitions. Word has length 88 [2021-03-10 17:53:04,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:04,762 INFO L480 AbstractCegarLoop]: Abstraction has 2483 states and 6577 transitions. [2021-03-10 17:53:04,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 6577 transitions. [2021-03-10 17:53:04,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:04,764 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:04,764 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:04,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-10 17:53:04,765 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:04,765 INFO L82 PathProgramCache]: Analyzing trace with hash 243347411, now seen corresponding path program 39 times [2021-03-10 17:53:04,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:04,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463266827] [2021-03-10 17:53:04,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:05,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463266827] [2021-03-10 17:53:05,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:05,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:05,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334534478] [2021-03-10 17:53:05,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:05,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:05,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:05,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:05,367 INFO L87 Difference]: Start difference. First operand 2483 states and 6577 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:06,243 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:06,411 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:53:06,595 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:53:06,791 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:53:07,020 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:53:07,216 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-03-10 17:53:07,477 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-03-10 17:53:07,838 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-03-10 17:53:08,061 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:53:08,297 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:53:08,645 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:53:08,869 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:53:09,047 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:53:09,291 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2021-03-10 17:53:09,486 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:53:09,742 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-03-10 17:53:09,915 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:53:10,147 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2021-03-10 17:53:10,323 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:53:10,549 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:53:10,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:10,561 INFO L93 Difference]: Finished difference Result 5613 states and 14110 transitions. [2021-03-10 17:53:10,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:53:10,561 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:10,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:10,565 INFO L225 Difference]: With dead ends: 5613 [2021-03-10 17:53:10,565 INFO L226 Difference]: Without dead ends: 5613 [2021-03-10 17:53:10,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 4779.1ms TimeCoverageRelationStatistics Valid=843, Invalid=1913, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:53:10,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5613 states. [2021-03-10 17:53:10,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5613 to 2527. [2021-03-10 17:53:10,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2525 states have (on average 2.657029702970297) internal successors, (6709), 2526 states have internal predecessors, (6709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 6709 transitions. [2021-03-10 17:53:10,597 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 6709 transitions. Word has length 88 [2021-03-10 17:53:10,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:10,597 INFO L480 AbstractCegarLoop]: Abstraction has 2527 states and 6709 transitions. [2021-03-10 17:53:10,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 6709 transitions. [2021-03-10 17:53:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:10,600 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:10,600 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:10,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-10 17:53:10,601 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:10,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:10,601 INFO L82 PathProgramCache]: Analyzing trace with hash -398730989, now seen corresponding path program 40 times [2021-03-10 17:53:10,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:10,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660338351] [2021-03-10 17:53:10,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:11,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660338351] [2021-03-10 17:53:11,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:11,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:11,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069776030] [2021-03-10 17:53:11,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:11,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:11,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:11,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:11,234 INFO L87 Difference]: Start difference. First operand 2527 states and 6709 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:12,143 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:12,317 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:53:12,512 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:53:12,711 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:53:12,942 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:53:13,122 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:53:13,364 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2021-03-10 17:53:13,739 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:53:13,980 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:53:14,168 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:53:14,429 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:53:14,819 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:53:15,040 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-03-10 17:53:15,213 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 17:53:15,441 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-03-10 17:53:15,622 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 17:53:15,856 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2021-03-10 17:53:16,033 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 17:53:16,258 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:53:16,443 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 17:53:16,680 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-03-10 17:53:16,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:16,691 INFO L93 Difference]: Finished difference Result 5400 states and 13572 transitions. [2021-03-10 17:53:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:53:16,692 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:16,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:16,696 INFO L225 Difference]: With dead ends: 5400 [2021-03-10 17:53:16,696 INFO L226 Difference]: Without dead ends: 5400 [2021-03-10 17:53:16,696 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 4957.3ms TimeCoverageRelationStatistics Valid=836, Invalid=2026, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:53:16,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states. [2021-03-10 17:53:16,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 2516. [2021-03-10 17:53:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2514 states have (on average 2.6555290373906124) internal successors, (6676), 2515 states have internal predecessors, (6676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 6676 transitions. [2021-03-10 17:53:16,727 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 6676 transitions. Word has length 88 [2021-03-10 17:53:16,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:16,727 INFO L480 AbstractCegarLoop]: Abstraction has 2516 states and 6676 transitions. [2021-03-10 17:53:16,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 6676 transitions. [2021-03-10 17:53:16,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:16,730 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:16,730 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:16,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-10 17:53:16,730 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:16,731 INFO L82 PathProgramCache]: Analyzing trace with hash 17821045, now seen corresponding path program 41 times [2021-03-10 17:53:16,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:16,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707714759] [2021-03-10 17:53:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:17,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707714759] [2021-03-10 17:53:17,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:17,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:17,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955697009] [2021-03-10 17:53:17,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:17,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:17,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:17,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:17,414 INFO L87 Difference]: Start difference. First operand 2516 states and 6676 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:18,287 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:18,458 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:53:18,643 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:53:18,837 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:53:19,063 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:53:19,450 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:53:19,641 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:53:19,841 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:53:20,049 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:53:20,305 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:53:20,706 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:53:20,893 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:53:21,067 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 17:53:21,262 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:53:21,459 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 17:53:21,662 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:53:21,844 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:53:22,012 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 17:53:22,203 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:53:22,381 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 17:53:22,568 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:53:22,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:22,579 INFO L93 Difference]: Finished difference Result 5749 states and 14337 transitions. [2021-03-10 17:53:22,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:53:22,580 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:22,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:22,584 INFO L225 Difference]: With dead ends: 5749 [2021-03-10 17:53:22,584 INFO L226 Difference]: Without dead ends: 5749 [2021-03-10 17:53:22,584 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 4786.5ms TimeCoverageRelationStatistics Valid=820, Invalid=2042, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:53:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5749 states. [2021-03-10 17:53:22,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5749 to 2505. [2021-03-10 17:53:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2503 states have (on average 2.654015181781862) internal successors, (6643), 2504 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 6643 transitions. [2021-03-10 17:53:22,618 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 6643 transitions. Word has length 88 [2021-03-10 17:53:22,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:22,618 INFO L480 AbstractCegarLoop]: Abstraction has 2505 states and 6643 transitions. [2021-03-10 17:53:22,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:22,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 6643 transitions. [2021-03-10 17:53:22,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:22,621 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:22,621 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:22,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-10 17:53:22,621 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:22,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:22,622 INFO L82 PathProgramCache]: Analyzing trace with hash -296269549, now seen corresponding path program 42 times [2021-03-10 17:53:22,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:22,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604987761] [2021-03-10 17:53:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:23,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604987761] [2021-03-10 17:53:23,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:23,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:23,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712984708] [2021-03-10 17:53:23,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:23,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:23,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:23,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:23,200 INFO L87 Difference]: Start difference. First operand 2505 states and 6643 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:23,961 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:53:24,123 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:24,303 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:53:24,501 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:53:24,945 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-10 17:53:25,113 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:53:25,302 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:53:25,500 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:53:25,706 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:53:25,953 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:53:26,338 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:53:26,513 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 17:53:26,695 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 17:53:26,853 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-10 17:53:27,024 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 17:53:27,200 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 17:53:27,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:27,208 INFO L93 Difference]: Finished difference Result 4777 states and 12005 transitions. [2021-03-10 17:53:27,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:53:27,208 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:27,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:27,211 INFO L225 Difference]: With dead ends: 4777 [2021-03-10 17:53:27,211 INFO L226 Difference]: Without dead ends: 4777 [2021-03-10 17:53:27,211 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3515.2ms TimeCoverageRelationStatistics Valid=612, Invalid=1644, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:53:27,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4777 states. [2021-03-10 17:53:27,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4777 to 2483. [2021-03-10 17:53:27,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 2.6509471987101976) internal successors, (6577), 2482 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:27,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 6577 transitions. [2021-03-10 17:53:27,238 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 6577 transitions. Word has length 88 [2021-03-10 17:53:27,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:27,238 INFO L480 AbstractCegarLoop]: Abstraction has 2483 states and 6577 transitions. [2021-03-10 17:53:27,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:27,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 6577 transitions. [2021-03-10 17:53:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:27,240 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:27,240 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:27,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-10 17:53:27,240 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:27,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:27,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1326467271, now seen corresponding path program 43 times [2021-03-10 17:53:27,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:27,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700386538] [2021-03-10 17:53:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:27,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700386538] [2021-03-10 17:53:27,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:27,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:27,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927106725] [2021-03-10 17:53:27,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:27,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:27,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:27,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:27,977 INFO L87 Difference]: Start difference. First operand 2483 states and 6577 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:28,751 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:53:28,904 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:29,228 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:29,397 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:53:29,585 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:53:29,791 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:53:29,998 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-10 17:53:30,241 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:53:30,562 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:53:30,731 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 17:53:30,889 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:53:31,057 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 17:53:31,206 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:31,366 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 17:53:31,532 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 17:53:31,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:31,542 INFO L93 Difference]: Finished difference Result 3961 states and 9845 transitions. [2021-03-10 17:53:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:53:31,543 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:31,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:31,546 INFO L225 Difference]: With dead ends: 3961 [2021-03-10 17:53:31,546 INFO L226 Difference]: Without dead ends: 3961 [2021-03-10 17:53:31,546 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 3409.6ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:53:31,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states. [2021-03-10 17:53:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 2489. [2021-03-10 17:53:31,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2487 states have (on average 2.650583031765179) internal successors, (6592), 2488 states have internal predecessors, (6592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 6592 transitions. [2021-03-10 17:53:31,572 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 6592 transitions. Word has length 88 [2021-03-10 17:53:31,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:31,572 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 6592 transitions. [2021-03-10 17:53:31,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 6592 transitions. [2021-03-10 17:53:31,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:31,574 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:31,574 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:31,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-10 17:53:31,575 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash -2189437, now seen corresponding path program 44 times [2021-03-10 17:53:31,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:31,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826934418] [2021-03-10 17:53:31,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:32,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826934418] [2021-03-10 17:53:32,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:32,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:32,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016933284] [2021-03-10 17:53:32,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:32,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:32,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:32,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:32,156 INFO L87 Difference]: Start difference. First operand 2489 states and 6592 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:33,021 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:33,353 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:33,549 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:53:33,754 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:53:33,973 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:53:34,161 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:53:34,401 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:53:34,727 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:53:34,890 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 17:53:35,047 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:53:35,213 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 17:53:35,351 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:35,511 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 17:53:35,675 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 17:53:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:35,686 INFO L93 Difference]: Finished difference Result 4075 states and 10080 transitions. [2021-03-10 17:53:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:53:35,687 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:35,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:35,690 INFO L225 Difference]: With dead ends: 4075 [2021-03-10 17:53:35,690 INFO L226 Difference]: Without dead ends: 4075 [2021-03-10 17:53:35,690 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 3264.1ms TimeCoverageRelationStatistics Valid=564, Invalid=1598, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:53:35,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2021-03-10 17:53:35,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 2487. [2021-03-10 17:53:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2485 states have (on average 2.6507042253521127) internal successors, (6587), 2486 states have internal predecessors, (6587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:35,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 6587 transitions. [2021-03-10 17:53:35,735 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 6587 transitions. Word has length 88 [2021-03-10 17:53:35,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:35,735 INFO L480 AbstractCegarLoop]: Abstraction has 2487 states and 6587 transitions. [2021-03-10 17:53:35,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:35,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 6587 transitions. [2021-03-10 17:53:35,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:35,738 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:35,738 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:35,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-10 17:53:35,738 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:35,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1838913397, now seen corresponding path program 45 times [2021-03-10 17:53:35,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:35,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589573014] [2021-03-10 17:53:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:36,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589573014] [2021-03-10 17:53:36,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:36,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:36,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501173573] [2021-03-10 17:53:36,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:36,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:36,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:36,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:36,323 INFO L87 Difference]: Start difference. First operand 2487 states and 6587 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:37,049 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:53:37,206 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:53:37,552 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:37,722 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 17:53:37,912 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 17:53:38,098 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:53:38,334 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:53:38,521 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:53:38,773 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:53:39,091 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:53:39,256 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 17:53:39,413 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:53:39,579 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 17:53:39,715 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:39,875 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 17:53:40,040 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 17:53:40,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:40,051 INFO L93 Difference]: Finished difference Result 3873 states and 9673 transitions. [2021-03-10 17:53:40,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:53:40,052 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:40,055 INFO L225 Difference]: With dead ends: 3873 [2021-03-10 17:53:40,055 INFO L226 Difference]: Without dead ends: 3873 [2021-03-10 17:53:40,056 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3406.9ms TimeCoverageRelationStatistics Valid=597, Invalid=1659, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:53:40,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2021-03-10 17:53:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 2483. [2021-03-10 17:53:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 2.6509471987101976) internal successors, (6577), 2482 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 6577 transitions. [2021-03-10 17:53:40,081 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 6577 transitions. Word has length 88 [2021-03-10 17:53:40,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:40,081 INFO L480 AbstractCegarLoop]: Abstraction has 2483 states and 6577 transitions. [2021-03-10 17:53:40,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 6577 transitions. [2021-03-10 17:53:40,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:40,083 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:40,083 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:40,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-10 17:53:40,083 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:40,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:40,084 INFO L82 PathProgramCache]: Analyzing trace with hash -857873505, now seen corresponding path program 46 times [2021-03-10 17:53:40,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:40,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219904071] [2021-03-10 17:53:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:40,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219904071] [2021-03-10 17:53:40,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:40,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:40,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908051043] [2021-03-10 17:53:40,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:40,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:40,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:40,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:40,764 INFO L87 Difference]: Start difference. First operand 2483 states and 6577 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:41,877 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-03-10 17:53:42,052 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:53:42,252 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:53:42,509 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:53:42,756 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:53:43,005 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:53:43,565 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 17:53:43,699 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-10 17:53:43,938 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 17:53:44,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:44,080 INFO L93 Difference]: Finished difference Result 3735 states and 9393 transitions. [2021-03-10 17:53:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:53:44,080 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:44,083 INFO L225 Difference]: With dead ends: 3735 [2021-03-10 17:53:44,083 INFO L226 Difference]: Without dead ends: 3735 [2021-03-10 17:53:44,083 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2992.7ms TimeCoverageRelationStatistics Valid=498, Invalid=1572, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:53:44,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2021-03-10 17:53:44,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 2485. [2021-03-10 17:53:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2483 states have (on average 2.6508256141763997) internal successors, (6582), 2484 states have internal predecessors, (6582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:44,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 6582 transitions. [2021-03-10 17:53:44,107 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 6582 transitions. Word has length 88 [2021-03-10 17:53:44,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:44,107 INFO L480 AbstractCegarLoop]: Abstraction has 2485 states and 6582 transitions. [2021-03-10 17:53:44,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:44,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 6582 transitions. [2021-03-10 17:53:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:44,109 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:44,109 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:44,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-10 17:53:44,109 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:44,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:44,109 INFO L82 PathProgramCache]: Analyzing trace with hash 539006217, now seen corresponding path program 47 times [2021-03-10 17:53:44,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:44,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836732932] [2021-03-10 17:53:44,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:44,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836732932] [2021-03-10 17:53:44,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:44,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:44,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750845970] [2021-03-10 17:53:44,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:44,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:44,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:44,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:44,667 INFO L87 Difference]: Start difference. First operand 2485 states and 6582 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:45,742 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:53:45,902 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:53:46,100 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:53:46,344 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:53:46,585 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:53:46,834 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:53:47,290 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-03-10 17:53:47,431 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 17:53:47,572 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-10 17:53:47,814 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 17:53:47,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:47,960 INFO L93 Difference]: Finished difference Result 3840 states and 9594 transitions. [2021-03-10 17:53:47,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:53:47,961 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:47,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:47,964 INFO L225 Difference]: With dead ends: 3840 [2021-03-10 17:53:47,964 INFO L226 Difference]: Without dead ends: 3840 [2021-03-10 17:53:47,964 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2920.0ms TimeCoverageRelationStatistics Valid=498, Invalid=1572, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:53:47,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2021-03-10 17:53:47,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 2487. [2021-03-10 17:53:47,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2485 states have (on average 2.6507042253521127) internal successors, (6587), 2486 states have internal predecessors, (6587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:47,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 6587 transitions. [2021-03-10 17:53:47,990 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 6587 transitions. Word has length 88 [2021-03-10 17:53:47,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:47,990 INFO L480 AbstractCegarLoop]: Abstraction has 2487 states and 6587 transitions. [2021-03-10 17:53:47,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:47,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 6587 transitions. [2021-03-10 17:53:47,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:47,992 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:47,993 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:47,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-10 17:53:47,993 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:47,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:47,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1467129623, now seen corresponding path program 48 times [2021-03-10 17:53:47,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:47,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930175211] [2021-03-10 17:53:47,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:48,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930175211] [2021-03-10 17:53:48,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:48,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:48,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546212443] [2021-03-10 17:53:48,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:48,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:48,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:48,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:48,600 INFO L87 Difference]: Start difference. First operand 2487 states and 6587 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:49,587 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:53:49,740 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:49,920 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:53:50,111 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:53:50,319 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:53:50,554 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-10 17:53:50,807 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:53:51,490 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:53:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:51,856 INFO L93 Difference]: Finished difference Result 3710 states and 9311 transitions. [2021-03-10 17:53:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:53:51,856 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:51,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:51,859 INFO L225 Difference]: With dead ends: 3710 [2021-03-10 17:53:51,859 INFO L226 Difference]: Without dead ends: 3710 [2021-03-10 17:53:51,859 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 3035.6ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:53:51,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2021-03-10 17:53:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 2493. [2021-03-10 17:53:51,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 2491 states have (on average 2.6503412284223202) internal successors, (6602), 2492 states have internal predecessors, (6602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:51,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 6602 transitions. [2021-03-10 17:53:51,885 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 6602 transitions. Word has length 88 [2021-03-10 17:53:51,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:51,885 INFO L480 AbstractCegarLoop]: Abstraction has 2493 states and 6602 transitions. [2021-03-10 17:53:51,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:51,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 6602 transitions. [2021-03-10 17:53:51,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:51,887 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:51,887 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:51,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-10 17:53:51,887 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:51,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:51,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1503559839, now seen corresponding path program 49 times [2021-03-10 17:53:51,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:51,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433405360] [2021-03-10 17:53:51,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:52,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433405360] [2021-03-10 17:53:52,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:52,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:52,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501405996] [2021-03-10 17:53:52,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:52,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:52,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:52,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:52,630 INFO L87 Difference]: Start difference. First operand 2493 states and 6602 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:53,630 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:53:53,786 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:53,971 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:53:54,165 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:53:54,387 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:53:54,578 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:53:54,826 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:53:55,387 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-03-10 17:53:55,519 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:53:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:55,898 INFO L93 Difference]: Finished difference Result 3824 states and 9546 transitions. [2021-03-10 17:53:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:53:55,898 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:53:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:55,901 INFO L225 Difference]: With dead ends: 3824 [2021-03-10 17:53:55,901 INFO L226 Difference]: Without dead ends: 3824 [2021-03-10 17:53:55,901 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 3161.1ms TimeCoverageRelationStatistics Valid=534, Invalid=1628, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:53:55,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2021-03-10 17:53:55,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 2491. [2021-03-10 17:53:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2489 states have (on average 2.650462032944958) internal successors, (6597), 2490 states have internal predecessors, (6597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 6597 transitions. [2021-03-10 17:53:55,927 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 6597 transitions. Word has length 88 [2021-03-10 17:53:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:55,928 INFO L480 AbstractCegarLoop]: Abstraction has 2491 states and 6597 transitions. [2021-03-10 17:53:55,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 6597 transitions. [2021-03-10 17:53:55,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:53:55,929 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:55,929 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:55,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-10 17:53:55,930 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:55,930 INFO L82 PathProgramCache]: Analyzing trace with hash 337542995, now seen corresponding path program 50 times [2021-03-10 17:53:55,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:55,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173404379] [2021-03-10 17:53:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:56,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173404379] [2021-03-10 17:53:56,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:56,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:53:56,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589715576] [2021-03-10 17:53:56,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:53:56,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:56,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:53:56,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:53:56,599 INFO L87 Difference]: Start difference. First operand 2491 states and 6597 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:57,598 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:53:57,754 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:53:57,928 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 17:53:58,135 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 17:53:58,328 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:53:58,561 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:53:58,755 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:53:59,015 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:53:59,711 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:53:59,946 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:54:00,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:00,084 INFO L93 Difference]: Finished difference Result 3760 states and 9427 transitions. [2021-03-10 17:54:00,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:54:00,085 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:00,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:00,088 INFO L225 Difference]: With dead ends: 3760 [2021-03-10 17:54:00,088 INFO L226 Difference]: Without dead ends: 3760 [2021-03-10 17:54:00,088 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3260.3ms TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:54:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2021-03-10 17:54:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 2485. [2021-03-10 17:54:00,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2483 states have (on average 2.6508256141763997) internal successors, (6582), 2484 states have internal predecessors, (6582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 6582 transitions. [2021-03-10 17:54:00,115 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 6582 transitions. Word has length 88 [2021-03-10 17:54:00,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:00,115 INFO L480 AbstractCegarLoop]: Abstraction has 2485 states and 6582 transitions. [2021-03-10 17:54:00,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 6582 transitions. [2021-03-10 17:54:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:00,117 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:00,117 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:00,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-10 17:54:00,117 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:00,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:00,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1783088467, now seen corresponding path program 51 times [2021-03-10 17:54:00,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:00,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52571217] [2021-03-10 17:54:00,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:00,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52571217] [2021-03-10 17:54:00,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:00,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:00,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42951305] [2021-03-10 17:54:00,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:00,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:00,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:00,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:00,710 INFO L87 Difference]: Start difference. First operand 2485 states and 6582 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:01,688 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:02,114 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:54:02,297 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:54:02,524 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:02,757 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:03,000 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:03,342 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:54:03,507 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:54:03,673 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-10 17:54:03,847 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-03-10 17:54:04,004 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:54:04,176 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-03-10 17:54:04,357 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 17:54:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:04,366 INFO L93 Difference]: Finished difference Result 6492 states and 16550 transitions. [2021-03-10 17:54:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:04,366 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:04,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:04,371 INFO L225 Difference]: With dead ends: 6492 [2021-03-10 17:54:04,371 INFO L226 Difference]: Without dead ends: 6492 [2021-03-10 17:54:04,371 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3220.9ms TimeCoverageRelationStatistics Valid=527, Invalid=1543, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:04,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6492 states. [2021-03-10 17:54:04,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6492 to 2584. [2021-03-10 17:54:04,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2582 states have (on average 2.664213787761425) internal successors, (6879), 2583 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 6879 transitions. [2021-03-10 17:54:04,408 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 6879 transitions. Word has length 88 [2021-03-10 17:54:04,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:04,408 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 6879 transitions. [2021-03-10 17:54:04,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 6879 transitions. [2021-03-10 17:54:04,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:04,410 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:04,410 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:04,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-10 17:54:04,411 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:04,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:04,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1414608403, now seen corresponding path program 52 times [2021-03-10 17:54:04,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:04,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982403963] [2021-03-10 17:54:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:05,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982403963] [2021-03-10 17:54:05,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:05,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:05,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580769282] [2021-03-10 17:54:05,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:05,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:05,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:05,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:05,044 INFO L87 Difference]: Start difference. First operand 2584 states and 6879 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:06,102 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:06,293 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:06,554 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:54:06,796 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:54:07,044 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:54:07,466 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-03-10 17:54:07,813 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:54:08,042 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:54:08,301 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:54:08,541 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:54:08,787 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:08,796 INFO L93 Difference]: Finished difference Result 6220 states and 16012 transitions. [2021-03-10 17:54:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 17:54:08,797 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:08,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:08,801 INFO L225 Difference]: With dead ends: 6220 [2021-03-10 17:54:08,801 INFO L226 Difference]: Without dead ends: 6220 [2021-03-10 17:54:08,801 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3444.5ms TimeCoverageRelationStatistics Valid=530, Invalid=1362, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 17:54:08,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6220 states. [2021-03-10 17:54:08,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6220 to 2716. [2021-03-10 17:54:08,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2714 states have (on average 2.680545320560059) internal successors, (7275), 2715 states have internal predecessors, (7275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 7275 transitions. [2021-03-10 17:54:08,839 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 7275 transitions. Word has length 88 [2021-03-10 17:54:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:08,839 INFO L480 AbstractCegarLoop]: Abstraction has 2716 states and 7275 transitions. [2021-03-10 17:54:08,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 7275 transitions. [2021-03-10 17:54:08,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:08,841 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:08,841 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:08,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-10 17:54:08,841 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:08,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1223961261, now seen corresponding path program 53 times [2021-03-10 17:54:08,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:08,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810408802] [2021-03-10 17:54:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:09,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810408802] [2021-03-10 17:54:09,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:09,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:09,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456102322] [2021-03-10 17:54:09,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:09,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:09,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:09,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:09,459 INFO L87 Difference]: Start difference. First operand 2716 states and 7275 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:10,471 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:10,682 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:10,956 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:54:11,204 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:54:11,465 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:54:11,933 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:12,167 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:12,584 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:54:12,833 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:54:13,092 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:54:13,345 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:54:13,590 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:13,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:13,598 INFO L93 Difference]: Finished difference Result 6018 states and 15497 transitions. [2021-03-10 17:54:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 17:54:13,599 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:13,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:13,602 INFO L225 Difference]: With dead ends: 6018 [2021-03-10 17:54:13,602 INFO L226 Difference]: Without dead ends: 6018 [2021-03-10 17:54:13,602 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3639.5ms TimeCoverageRelationStatistics Valid=539, Invalid=1441, Unknown=0, NotChecked=0, Total=1980 [2021-03-10 17:54:13,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-03-10 17:54:13,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 2683. [2021-03-10 17:54:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2681 states have (on average 2.6766132040283477) internal successors, (7176), 2682 states have internal predecessors, (7176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 7176 transitions. [2021-03-10 17:54:13,646 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 7176 transitions. Word has length 88 [2021-03-10 17:54:13,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:13,646 INFO L480 AbstractCegarLoop]: Abstraction has 2683 states and 7176 transitions. [2021-03-10 17:54:13,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 7176 transitions. [2021-03-10 17:54:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:13,649 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:13,649 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:13,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-10 17:54:13,650 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:13,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:13,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1791124939, now seen corresponding path program 54 times [2021-03-10 17:54:13,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:13,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236573671] [2021-03-10 17:54:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:14,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236573671] [2021-03-10 17:54:14,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:14,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:14,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002410333] [2021-03-10 17:54:14,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:14,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:14,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:14,239 INFO L87 Difference]: Start difference. First operand 2683 states and 7176 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:15,251 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:15,453 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:15,737 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:54:16,183 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:16,414 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:16,663 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:17,049 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-03-10 17:54:17,273 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-03-10 17:54:17,493 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-03-10 17:54:17,721 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-03-10 17:54:17,916 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:18,136 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-03-10 17:54:18,373 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-03-10 17:54:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:18,385 INFO L93 Difference]: Finished difference Result 6122 states and 15701 transitions. [2021-03-10 17:54:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:18,386 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:18,390 INFO L225 Difference]: With dead ends: 6122 [2021-03-10 17:54:18,390 INFO L226 Difference]: Without dead ends: 6122 [2021-03-10 17:54:18,390 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3655.6ms TimeCoverageRelationStatistics Valid=557, Invalid=1513, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2021-03-10 17:54:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 2650. [2021-03-10 17:54:18,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2648 states have (on average 2.672583081570997) internal successors, (7077), 2649 states have internal predecessors, (7077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 7077 transitions. [2021-03-10 17:54:18,422 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 7077 transitions. Word has length 88 [2021-03-10 17:54:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:18,422 INFO L480 AbstractCegarLoop]: Abstraction has 2650 states and 7077 transitions. [2021-03-10 17:54:18,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 7077 transitions. [2021-03-10 17:54:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:18,424 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:18,424 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:18,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-10 17:54:18,424 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:18,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:18,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1833125203, now seen corresponding path program 55 times [2021-03-10 17:54:18,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:18,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724726058] [2021-03-10 17:54:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:19,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724726058] [2021-03-10 17:54:19,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:19,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:19,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835081076] [2021-03-10 17:54:19,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:19,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:19,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:19,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:19,085 INFO L87 Difference]: Start difference. First operand 2650 states and 7077 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:19,930 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:20,110 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:20,312 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:20,788 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:54:21,022 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:21,264 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:21,517 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:21,891 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-03-10 17:54:22,091 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-03-10 17:54:22,284 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-03-10 17:54:22,488 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-03-10 17:54:22,661 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:54:22,857 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-03-10 17:54:23,062 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-03-10 17:54:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:23,074 INFO L93 Difference]: Finished difference Result 6173 states and 15815 transitions. [2021-03-10 17:54:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:23,075 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:23,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:23,080 INFO L225 Difference]: With dead ends: 6173 [2021-03-10 17:54:23,080 INFO L226 Difference]: Without dead ends: 6173 [2021-03-10 17:54:23,080 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 3518.4ms TimeCoverageRelationStatistics Valid=542, Invalid=1528, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6173 states. [2021-03-10 17:54:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6173 to 2551. [2021-03-10 17:54:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2549 states have (on average 2.659866614358572) internal successors, (6780), 2550 states have internal predecessors, (6780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:23,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 6780 transitions. [2021-03-10 17:54:23,113 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 6780 transitions. Word has length 88 [2021-03-10 17:54:23,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:23,113 INFO L480 AbstractCegarLoop]: Abstraction has 2551 states and 6780 transitions. [2021-03-10 17:54:23,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 6780 transitions. [2021-03-10 17:54:23,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:23,115 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:23,115 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:23,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-10 17:54:23,116 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:23,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:23,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1133077963, now seen corresponding path program 56 times [2021-03-10 17:54:23,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:23,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824932481] [2021-03-10 17:54:23,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:23,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824932481] [2021-03-10 17:54:23,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:23,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:23,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178537518] [2021-03-10 17:54:23,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:23,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:23,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:23,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:23,740 INFO L87 Difference]: Start difference. First operand 2551 states and 6780 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:24,562 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:24,969 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:54:25,136 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:54:25,332 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:54:25,575 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:25,825 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:26,098 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:26,426 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:54:26,583 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:54:26,735 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-03-10 17:54:26,895 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-03-10 17:54:27,025 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:54:27,178 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-03-10 17:54:27,339 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-03-10 17:54:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:27,350 INFO L93 Difference]: Finished difference Result 5643 states and 14486 transitions. [2021-03-10 17:54:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:27,351 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:27,355 INFO L225 Difference]: With dead ends: 5643 [2021-03-10 17:54:27,355 INFO L226 Difference]: Without dead ends: 5643 [2021-03-10 17:54:27,355 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3160.9ms TimeCoverageRelationStatistics Valid=512, Invalid=1558, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2021-03-10 17:54:27,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 2518. [2021-03-10 17:54:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2516 states have (on average 2.6554054054054053) internal successors, (6681), 2517 states have internal predecessors, (6681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 6681 transitions. [2021-03-10 17:54:27,386 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 6681 transitions. Word has length 88 [2021-03-10 17:54:27,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:27,386 INFO L480 AbstractCegarLoop]: Abstraction has 2518 states and 6681 transitions. [2021-03-10 17:54:27,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 6681 transitions. [2021-03-10 17:54:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:27,388 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:27,388 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:27,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-10 17:54:27,388 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:27,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:27,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1453441001, now seen corresponding path program 57 times [2021-03-10 17:54:27,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:27,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930139650] [2021-03-10 17:54:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:27,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930139650] [2021-03-10 17:54:27,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:27,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:27,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407791826] [2021-03-10 17:54:27,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:27,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:27,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:27,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:27,969 INFO L87 Difference]: Start difference. First operand 2518 states and 6681 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:28,843 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:29,014 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:29,488 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:54:29,679 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:54:29,935 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:30,179 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:30,447 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:30,830 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:54:31,003 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:54:31,182 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-10 17:54:31,380 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-03-10 17:54:31,541 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:54:31,711 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-03-10 17:54:31,893 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 17:54:31,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:31,901 INFO L93 Difference]: Finished difference Result 7615 states and 19440 transitions. [2021-03-10 17:54:31,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:31,902 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:31,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:31,907 INFO L225 Difference]: With dead ends: 7615 [2021-03-10 17:54:31,907 INFO L226 Difference]: Without dead ends: 7615 [2021-03-10 17:54:31,907 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 3413.5ms TimeCoverageRelationStatistics Valid=527, Invalid=1543, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:31,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7615 states. [2021-03-10 17:54:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7615 to 2562. [2021-03-10 17:54:31,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2562 states, 2560 states have (on average 2.661328125) internal successors, (6813), 2561 states have internal predecessors, (6813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 6813 transitions. [2021-03-10 17:54:31,943 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 6813 transitions. Word has length 88 [2021-03-10 17:54:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:31,943 INFO L480 AbstractCegarLoop]: Abstraction has 2562 states and 6813 transitions. [2021-03-10 17:54:31,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 6813 transitions. [2021-03-10 17:54:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:31,944 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:31,945 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:31,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-10 17:54:31,945 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:31,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:31,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1084960937, now seen corresponding path program 58 times [2021-03-10 17:54:31,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:31,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941941545] [2021-03-10 17:54:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:32,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941941545] [2021-03-10 17:54:32,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:32,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:32,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410862694] [2021-03-10 17:54:32,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:32,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:32,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:32,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:32,574 INFO L87 Difference]: Start difference. First operand 2562 states and 6813 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:33,423 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:33,596 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:33,815 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:34,124 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:54:34,381 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:54:34,646 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:54:35,156 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-03-10 17:54:35,557 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:54:35,796 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:54:36,044 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:54:36,285 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:54:36,539 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:36,547 INFO L93 Difference]: Finished difference Result 8414 states and 21610 transitions. [2021-03-10 17:54:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 17:54:36,548 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:36,553 INFO L225 Difference]: With dead ends: 8414 [2021-03-10 17:54:36,553 INFO L226 Difference]: Without dead ends: 8414 [2021-03-10 17:54:36,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3509.9ms TimeCoverageRelationStatistics Valid=530, Invalid=1362, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 17:54:36,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8414 states. [2021-03-10 17:54:36,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8414 to 2694. [2021-03-10 17:54:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2692 states have (on average 2.677934621099554) internal successors, (7209), 2693 states have internal predecessors, (7209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 7209 transitions. [2021-03-10 17:54:36,607 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 7209 transitions. Word has length 88 [2021-03-10 17:54:36,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:36,607 INFO L480 AbstractCegarLoop]: Abstraction has 2694 states and 7209 transitions. [2021-03-10 17:54:36,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:36,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 7209 transitions. [2021-03-10 17:54:36,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:36,610 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:36,610 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:36,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-10 17:54:36,610 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:36,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:36,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1553608727, now seen corresponding path program 59 times [2021-03-10 17:54:36,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:36,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325650879] [2021-03-10 17:54:36,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:37,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325650879] [2021-03-10 17:54:37,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:37,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:37,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137113959] [2021-03-10 17:54:37,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:37,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:37,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:37,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:37,247 INFO L87 Difference]: Start difference. First operand 2694 states and 7209 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:38,136 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:38,331 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:38,551 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:38,850 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:54:39,125 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:54:39,420 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:54:39,904 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:40,146 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:40,597 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:54:40,843 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:54:41,102 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:54:41,352 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:54:41,607 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:41,615 INFO L93 Difference]: Finished difference Result 8212 states and 21095 transitions. [2021-03-10 17:54:41,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 17:54:41,616 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:41,623 INFO L225 Difference]: With dead ends: 8212 [2021-03-10 17:54:41,623 INFO L226 Difference]: Without dead ends: 8212 [2021-03-10 17:54:41,624 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3816.1ms TimeCoverageRelationStatistics Valid=539, Invalid=1441, Unknown=0, NotChecked=0, Total=1980 [2021-03-10 17:54:41,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8212 states. [2021-03-10 17:54:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8212 to 2661. [2021-03-10 17:54:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2659 states have (on average 2.6739375705152315) internal successors, (7110), 2660 states have internal predecessors, (7110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:41,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 7110 transitions. [2021-03-10 17:54:41,695 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 7110 transitions. Word has length 88 [2021-03-10 17:54:41,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:41,695 INFO L480 AbstractCegarLoop]: Abstraction has 2661 states and 7110 transitions. [2021-03-10 17:54:41,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:41,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 7110 transitions. [2021-03-10 17:54:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:41,697 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:41,698 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:41,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-10 17:54:41,698 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:41,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:41,698 INFO L82 PathProgramCache]: Analyzing trace with hash -2120772405, now seen corresponding path program 60 times [2021-03-10 17:54:41,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:41,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12386529] [2021-03-10 17:54:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:42,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:42,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12386529] [2021-03-10 17:54:42,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:42,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:42,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661884239] [2021-03-10 17:54:42,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:42,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:42,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:42,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:42,312 INFO L87 Difference]: Start difference. First operand 2661 states and 7110 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:43,254 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:43,435 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:43,661 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:43,961 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:54:44,440 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:44,691 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:44,950 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:45,388 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-03-10 17:54:45,642 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-03-10 17:54:45,870 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-03-10 17:54:46,108 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-03-10 17:54:46,315 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:46,547 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-03-10 17:54:46,788 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-03-10 17:54:46,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:46,802 INFO L93 Difference]: Finished difference Result 8316 states and 21299 transitions. [2021-03-10 17:54:46,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:46,802 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:46,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:46,810 INFO L225 Difference]: With dead ends: 8316 [2021-03-10 17:54:46,810 INFO L226 Difference]: Without dead ends: 8316 [2021-03-10 17:54:46,811 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 3829.4ms TimeCoverageRelationStatistics Valid=557, Invalid=1513, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8316 states. [2021-03-10 17:54:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8316 to 2628. [2021-03-10 17:54:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 2626 states have (on average 2.66984006092917) internal successors, (7011), 2627 states have internal predecessors, (7011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 7011 transitions. [2021-03-10 17:54:46,860 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 7011 transitions. Word has length 88 [2021-03-10 17:54:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:46,860 INFO L480 AbstractCegarLoop]: Abstraction has 2628 states and 7011 transitions. [2021-03-10 17:54:46,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:46,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 7011 transitions. [2021-03-10 17:54:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:46,862 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:46,862 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:46,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-10 17:54:46,863 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:46,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:46,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1503477737, now seen corresponding path program 61 times [2021-03-10 17:54:46,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:46,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427214902] [2021-03-10 17:54:46,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:47,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427214902] [2021-03-10 17:54:47,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:47,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:47,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573453787] [2021-03-10 17:54:47,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:47,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:47,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:47,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:47,503 INFO L87 Difference]: Start difference. First operand 2628 states and 7011 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:48,427 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:48,608 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:54:48,833 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:54:49,319 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:54:49,548 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:54:49,798 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:54:50,072 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:54:50,482 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-03-10 17:54:50,693 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-03-10 17:54:50,896 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-03-10 17:54:51,109 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-03-10 17:54:51,289 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:54:51,493 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-03-10 17:54:51,709 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-03-10 17:54:51,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:51,722 INFO L93 Difference]: Finished difference Result 8367 states and 21413 transitions. [2021-03-10 17:54:51,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:51,723 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:51,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:51,729 INFO L225 Difference]: With dead ends: 8367 [2021-03-10 17:54:51,729 INFO L226 Difference]: Without dead ends: 8367 [2021-03-10 17:54:51,730 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 3658.7ms TimeCoverageRelationStatistics Valid=542, Invalid=1528, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8367 states. [2021-03-10 17:54:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8367 to 2529. [2021-03-10 17:54:51,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2527 states have (on average 2.6569054214483576) internal successors, (6714), 2528 states have internal predecessors, (6714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 6714 transitions. [2021-03-10 17:54:51,771 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 6714 transitions. Word has length 88 [2021-03-10 17:54:51,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:51,771 INFO L480 AbstractCegarLoop]: Abstraction has 2529 states and 6714 transitions. [2021-03-10 17:54:51,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 6714 transitions. [2021-03-10 17:54:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:51,773 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:51,773 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:51,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-10 17:54:51,773 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:51,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:51,773 INFO L82 PathProgramCache]: Analyzing trace with hash -2036355637, now seen corresponding path program 62 times [2021-03-10 17:54:51,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:51,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099924843] [2021-03-10 17:54:51,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:52,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099924843] [2021-03-10 17:54:52,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:52,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:52,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492594784] [2021-03-10 17:54:52,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:52,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:52,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:52,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:52,442 INFO L87 Difference]: Start difference. First operand 2529 states and 6714 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:53,352 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:54:53,754 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:54:53,934 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:54:54,149 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:54:54,416 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:54:54,695 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:54:54,958 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:54:55,360 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:54:55,534 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:54:55,701 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-03-10 17:54:55,876 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-03-10 17:54:56,019 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:54:56,186 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-03-10 17:54:56,363 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-03-10 17:54:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:56,376 INFO L93 Difference]: Finished difference Result 7191 states and 18322 transitions. [2021-03-10 17:54:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:54:56,376 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:54:56,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:56,381 INFO L225 Difference]: With dead ends: 7191 [2021-03-10 17:54:56,381 INFO L226 Difference]: Without dead ends: 7191 [2021-03-10 17:54:56,382 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3435.6ms TimeCoverageRelationStatistics Valid=512, Invalid=1558, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:54:56,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7191 states. [2021-03-10 17:54:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7191 to 2531. [2021-03-10 17:54:56,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2529 states have (on average 2.656781336496639) internal successors, (6719), 2530 states have internal predecessors, (6719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 6719 transitions. [2021-03-10 17:54:56,427 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 6719 transitions. Word has length 88 [2021-03-10 17:54:56,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:56,428 INFO L480 AbstractCegarLoop]: Abstraction has 2531 states and 6719 transitions. [2021-03-10 17:54:56,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:56,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 6719 transitions. [2021-03-10 17:54:56,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:54:56,430 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:56,430 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:56,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-10 17:54:56,431 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:56,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:56,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1108232231, now seen corresponding path program 63 times [2021-03-10 17:54:56,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:56,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032453457] [2021-03-10 17:54:56,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:57,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032453457] [2021-03-10 17:54:57,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:57,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:54:57,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194050732] [2021-03-10 17:54:57,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:54:57,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:57,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:54:57,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:54:57,153 INFO L87 Difference]: Start difference. First operand 2531 states and 6719 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:58,109 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:54:58,584 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:54:58,760 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:54:58,971 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:54:59,190 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:54:59,429 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:54:59,665 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:54:59,950 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:55:00,388 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 17:55:00,556 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-03-10 17:55:00,718 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:55:00,887 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:55:01,055 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:55:01,214 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:55:01,383 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 17:55:01,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:01,392 INFO L93 Difference]: Finished difference Result 7237 states and 18413 transitions. [2021-03-10 17:55:01,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:55:01,393 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:01,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:01,398 INFO L225 Difference]: With dead ends: 7237 [2021-03-10 17:55:01,398 INFO L226 Difference]: Without dead ends: 7237 [2021-03-10 17:55:01,399 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3609.7ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:55:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7237 states. [2021-03-10 17:55:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7237 to 2537. [2021-03-10 17:55:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2535 states have (on average 2.6564102564102563) internal successors, (6734), 2536 states have internal predecessors, (6734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 6734 transitions. [2021-03-10 17:55:01,436 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 6734 transitions. Word has length 88 [2021-03-10 17:55:01,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:01,436 INFO L480 AbstractCegarLoop]: Abstraction has 2537 states and 6734 transitions. [2021-03-10 17:55:01,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 6734 transitions. [2021-03-10 17:55:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:01,438 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:01,438 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:01,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-10 17:55:01,438 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:01,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:01,439 INFO L82 PathProgramCache]: Analyzing trace with hash 216045603, now seen corresponding path program 64 times [2021-03-10 17:55:01,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:01,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322245723] [2021-03-10 17:55:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:02,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:02,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322245723] [2021-03-10 17:55:02,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:02,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:02,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432646177] [2021-03-10 17:55:02,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:02,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:02,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:02,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:02,127 INFO L87 Difference]: Start difference. First operand 2537 states and 6734 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:03,008 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:03,404 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:55:03,576 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:55:03,793 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:55:04,011 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:55:04,265 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:55:04,482 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:55:04,779 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:55:05,193 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 17:55:05,361 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-03-10 17:55:05,524 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:55:05,697 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:55:05,839 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:55:06,006 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:55:06,182 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 17:55:06,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:06,195 INFO L93 Difference]: Finished difference Result 7351 states and 18648 transitions. [2021-03-10 17:55:06,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:55:06,196 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:06,202 INFO L225 Difference]: With dead ends: 7351 [2021-03-10 17:55:06,202 INFO L226 Difference]: Without dead ends: 7351 [2021-03-10 17:55:06,202 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3650.5ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:55:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7351 states. [2021-03-10 17:55:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7351 to 2535. [2021-03-10 17:55:06,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2533 states have (on average 2.656533754441374) internal successors, (6729), 2534 states have internal predecessors, (6729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 6729 transitions. [2021-03-10 17:55:06,240 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 6729 transitions. Word has length 88 [2021-03-10 17:55:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:06,240 INFO L480 AbstractCegarLoop]: Abstraction has 2535 states and 6729 transitions. [2021-03-10 17:55:06,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:06,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 6729 transitions. [2021-03-10 17:55:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:06,242 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:06,242 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:06,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-10 17:55:06,242 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:06,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:06,243 INFO L82 PathProgramCache]: Analyzing trace with hash 2057148437, now seen corresponding path program 65 times [2021-03-10 17:55:06,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:06,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961098051] [2021-03-10 17:55:06,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:06,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961098051] [2021-03-10 17:55:06,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:06,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:06,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531506543] [2021-03-10 17:55:06,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:06,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:06,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:06,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:06,931 INFO L87 Difference]: Start difference. First operand 2535 states and 6729 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:07,833 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:08,238 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:55:08,410 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:55:08,603 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 17:55:08,822 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 17:55:09,038 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:55:09,341 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:55:09,571 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:55:09,875 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:55:10,307 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 17:55:10,483 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-03-10 17:55:10,650 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:55:10,823 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:55:10,964 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:55:11,128 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:55:11,304 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 17:55:11,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:11,317 INFO L93 Difference]: Finished difference Result 7294 states and 18536 transitions. [2021-03-10 17:55:11,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:55:11,318 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:11,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:11,323 INFO L225 Difference]: With dead ends: 7294 [2021-03-10 17:55:11,323 INFO L226 Difference]: Without dead ends: 7294 [2021-03-10 17:55:11,324 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 3851.9ms TimeCoverageRelationStatistics Valid=581, Invalid=1675, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:55:11,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2021-03-10 17:55:11,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 2529. [2021-03-10 17:55:11,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2527 states have (on average 2.6569054214483576) internal successors, (6714), 2528 states have internal predecessors, (6714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 6714 transitions. [2021-03-10 17:55:11,369 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 6714 transitions. Word has length 88 [2021-03-10 17:55:11,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:11,369 INFO L480 AbstractCegarLoop]: Abstraction has 2529 states and 6714 transitions. [2021-03-10 17:55:11,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 6714 transitions. [2021-03-10 17:55:11,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:11,371 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:11,371 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:11,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-10 17:55:11,371 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:11,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:11,371 INFO L82 PathProgramCache]: Analyzing trace with hash -341643465, now seen corresponding path program 66 times [2021-03-10 17:55:11,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:11,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24260549] [2021-03-10 17:55:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:12,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24260549] [2021-03-10 17:55:12,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:12,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:12,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315138882] [2021-03-10 17:55:12,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:12,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:12,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:12,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:12,208 INFO L87 Difference]: Start difference. First operand 2529 states and 6714 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:13,169 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:13,357 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:13,610 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:13,856 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:55:14,111 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:55:14,341 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:55:14,634 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-03-10 17:55:15,169 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:15,439 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:55:15,932 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:55:16,206 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-03-10 17:55:16,436 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:55:16,706 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2021-03-10 17:55:16,949 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:55:17,239 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-03-10 17:55:17,477 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:55:17,753 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-03-10 17:55:18,005 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:18,275 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:55:18,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:18,289 INFO L93 Difference]: Finished difference Result 7795 states and 19950 transitions. [2021-03-10 17:55:18,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:55:18,290 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:18,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:18,295 INFO L225 Difference]: With dead ends: 7795 [2021-03-10 17:55:18,295 INFO L226 Difference]: Without dead ends: 7795 [2021-03-10 17:55:18,295 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 5530.2ms TimeCoverageRelationStatistics Valid=776, Invalid=1774, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 17:55:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7795 states. [2021-03-10 17:55:18,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7795 to 2584. [2021-03-10 17:55:18,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2582 states have (on average 2.664213787761425) internal successors, (6879), 2583 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:18,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 6879 transitions. [2021-03-10 17:55:18,332 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 6879 transitions. Word has length 88 [2021-03-10 17:55:18,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:18,332 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 6879 transitions. [2021-03-10 17:55:18,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:18,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 6879 transitions. [2021-03-10 17:55:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:18,334 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:18,334 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:18,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-10 17:55:18,335 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:18,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:18,335 INFO L82 PathProgramCache]: Analyzing trace with hash -563172203, now seen corresponding path program 67 times [2021-03-10 17:55:18,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:18,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258580781] [2021-03-10 17:55:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:19,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258580781] [2021-03-10 17:55:19,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:19,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:19,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574940519] [2021-03-10 17:55:19,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:19,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:19,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:19,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:19,158 INFO L87 Difference]: Start difference. First operand 2584 states and 6879 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:20,034 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:20,219 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:20,455 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:20,716 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:55:20,972 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:55:21,208 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:55:21,489 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:55:21,995 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:22,236 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-10 17:55:22,513 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:55:22,990 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:55:23,243 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2021-03-10 17:55:23,492 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:55:23,769 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-03-10 17:55:24,015 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:55:24,282 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:55:24,532 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:55:24,805 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2021-03-10 17:55:25,047 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:25,305 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-03-10 17:55:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:25,320 INFO L93 Difference]: Finished difference Result 7582 states and 19412 transitions. [2021-03-10 17:55:25,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:55:25,321 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:25,325 INFO L225 Difference]: With dead ends: 7582 [2021-03-10 17:55:25,325 INFO L226 Difference]: Without dead ends: 7582 [2021-03-10 17:55:25,326 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 5747.9ms TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:55:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7582 states. [2021-03-10 17:55:25,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7582 to 2573. [2021-03-10 17:55:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 2.662777129521587) internal successors, (6846), 2572 states have internal predecessors, (6846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:25,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6846 transitions. [2021-03-10 17:55:25,361 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6846 transitions. Word has length 88 [2021-03-10 17:55:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:25,361 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 6846 transitions. [2021-03-10 17:55:25,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6846 transitions. [2021-03-10 17:55:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:25,363 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:25,363 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:25,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-10 17:55:25,363 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:25,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:25,363 INFO L82 PathProgramCache]: Analyzing trace with hash 301180889, now seen corresponding path program 68 times [2021-03-10 17:55:25,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:25,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162029536] [2021-03-10 17:55:25,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:26,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162029536] [2021-03-10 17:55:26,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:26,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:26,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058035415] [2021-03-10 17:55:26,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:26,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:26,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:26,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:26,128 INFO L87 Difference]: Start difference. First operand 2573 states and 6846 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:27,066 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:27,252 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:27,497 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:27,740 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:55:28,001 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:55:28,485 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:55:28,716 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:28,970 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:55:29,283 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:55:29,784 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:55:30,019 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:55:30,264 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:55:30,479 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:55:30,712 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:55:30,957 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:30,967 INFO L93 Difference]: Finished difference Result 7110 states and 18184 transitions. [2021-03-10 17:55:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:55:30,968 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:30,973 INFO L225 Difference]: With dead ends: 7110 [2021-03-10 17:55:30,973 INFO L226 Difference]: Without dead ends: 7110 [2021-03-10 17:55:30,973 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 4335.7ms TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:55:30,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2021-03-10 17:55:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 2562. [2021-03-10 17:55:31,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2562 states, 2560 states have (on average 2.661328125) internal successors, (6813), 2561 states have internal predecessors, (6813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:31,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 6813 transitions. [2021-03-10 17:55:31,010 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 6813 transitions. Word has length 88 [2021-03-10 17:55:31,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:31,010 INFO L480 AbstractCegarLoop]: Abstraction has 2562 states and 6813 transitions. [2021-03-10 17:55:31,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:31,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 6813 transitions. [2021-03-10 17:55:31,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:31,012 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:31,012 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:31,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-10 17:55:31,013 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:31,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:31,013 INFO L82 PathProgramCache]: Analyzing trace with hash 979035393, now seen corresponding path program 69 times [2021-03-10 17:55:31,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:31,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299317889] [2021-03-10 17:55:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:31,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299317889] [2021-03-10 17:55:31,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:31,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:31,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412346602] [2021-03-10 17:55:31,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:31,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:31,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:31,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:31,757 INFO L87 Difference]: Start difference. First operand 2562 states and 6813 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:32,537 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:55:32,713 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:32,899 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:33,139 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:33,374 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:55:33,643 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2021-03-10 17:55:33,858 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-03-10 17:55:34,147 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:55:34,647 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:55:34,926 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:55:35,367 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-03-10 17:55:35,640 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-03-10 17:55:35,867 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-03-10 17:55:36,148 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2021-03-10 17:55:36,388 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:55:36,687 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-03-10 17:55:36,923 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-10 17:55:37,202 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-03-10 17:55:37,434 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:55:37,738 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:55:37,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:37,754 INFO L93 Difference]: Finished difference Result 8485 states and 21667 transitions. [2021-03-10 17:55:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:55:37,755 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:37,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:37,761 INFO L225 Difference]: With dead ends: 8485 [2021-03-10 17:55:37,761 INFO L226 Difference]: Without dead ends: 8485 [2021-03-10 17:55:37,761 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 5570.9ms TimeCoverageRelationStatistics Valid=783, Invalid=1767, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 17:55:37,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8485 states. [2021-03-10 17:55:37,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8485 to 2584. [2021-03-10 17:55:37,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2582 states have (on average 2.664213787761425) internal successors, (6879), 2583 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 6879 transitions. [2021-03-10 17:55:37,801 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 6879 transitions. Word has length 88 [2021-03-10 17:55:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:37,801 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 6879 transitions. [2021-03-10 17:55:37,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 6879 transitions. [2021-03-10 17:55:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:37,803 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:37,804 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:37,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-10 17:55:37,804 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:37,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:37,804 INFO L82 PathProgramCache]: Analyzing trace with hash 336956993, now seen corresponding path program 70 times [2021-03-10 17:55:37,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:37,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864705127] [2021-03-10 17:55:37,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:38,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:38,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864705127] [2021-03-10 17:55:38,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:38,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:38,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593008188] [2021-03-10 17:55:38,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:38,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:38,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:38,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:38,542 INFO L87 Difference]: Start difference. First operand 2584 states and 6879 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:39,462 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:39,656 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:39,906 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:40,143 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:55:40,426 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2021-03-10 17:55:40,643 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:55:40,923 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2021-03-10 17:55:41,452 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-03-10 17:55:41,676 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:55:41,963 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:55:42,450 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:55:42,702 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-03-10 17:55:42,931 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:43,192 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-03-10 17:55:43,446 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:55:43,719 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2021-03-10 17:55:43,954 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:55:44,217 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:55:44,453 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:55:44,711 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-03-10 17:55:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:44,726 INFO L93 Difference]: Finished difference Result 8272 states and 21129 transitions. [2021-03-10 17:55:44,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:55:44,727 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:44,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:44,732 INFO L225 Difference]: With dead ends: 8272 [2021-03-10 17:55:44,732 INFO L226 Difference]: Without dead ends: 8272 [2021-03-10 17:55:44,732 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 5654.0ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:55:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2021-03-10 17:55:44,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 2573. [2021-03-10 17:55:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 2.662777129521587) internal successors, (6846), 2572 states have internal predecessors, (6846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:44,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6846 transitions. [2021-03-10 17:55:44,770 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6846 transitions. Word has length 88 [2021-03-10 17:55:44,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:44,770 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 6846 transitions. [2021-03-10 17:55:44,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:44,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6846 transitions. [2021-03-10 17:55:44,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:44,772 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:44,772 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:44,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-10 17:55:44,772 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:44,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:44,773 INFO L82 PathProgramCache]: Analyzing trace with hash 753509027, now seen corresponding path program 71 times [2021-03-10 17:55:44,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:44,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086096755] [2021-03-10 17:55:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:45,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086096755] [2021-03-10 17:55:45,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:45,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:45,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600498014] [2021-03-10 17:55:45,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:45,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:45,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:45,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:45,545 INFO L87 Difference]: Start difference. First operand 2573 states and 6846 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:46,518 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:46,712 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:46,963 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:47,209 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:55:47,463 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:55:47,921 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:55:48,149 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:55:48,395 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-03-10 17:55:48,694 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:55:49,197 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:55:49,427 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:49,668 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:55:49,880 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:55:50,108 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:55:50,345 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:55:50,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:50,355 INFO L93 Difference]: Finished difference Result 7712 states and 19739 transitions. [2021-03-10 17:55:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:55:50,356 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:50,361 INFO L225 Difference]: With dead ends: 7712 [2021-03-10 17:55:50,361 INFO L226 Difference]: Without dead ends: 7712 [2021-03-10 17:55:50,361 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 4337.3ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:55:50,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7712 states. [2021-03-10 17:55:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7712 to 2562. [2021-03-10 17:55:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2562 states, 2560 states have (on average 2.661328125) internal successors, (6813), 2561 states have internal predecessors, (6813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 6813 transitions. [2021-03-10 17:55:50,400 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 6813 transitions. Word has length 88 [2021-03-10 17:55:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:50,400 INFO L480 AbstractCegarLoop]: Abstraction has 2562 states and 6813 transitions. [2021-03-10 17:55:50,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:50,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 6813 transitions. [2021-03-10 17:55:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:50,402 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:50,402 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:50,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-10 17:55:50,403 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:50,403 INFO L82 PathProgramCache]: Analyzing trace with hash 329392055, now seen corresponding path program 72 times [2021-03-10 17:55:50,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:50,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630299637] [2021-03-10 17:55:50,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:51,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:51,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630299637] [2021-03-10 17:55:51,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:51,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:51,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419488720] [2021-03-10 17:55:51,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:51,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:51,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:51,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:51,212 INFO L87 Difference]: Start difference. First operand 2562 states and 6813 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:51,852 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:55:52,194 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:52,392 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:52,644 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:53,118 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:55:53,345 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:55:53,591 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:55:53,840 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:55:54,144 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:55:54,608 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:55:54,829 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:55:55,056 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:55:55,280 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:55:55,460 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:55:55,678 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:55:55,902 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:55:55,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:55,916 INFO L93 Difference]: Finished difference Result 7107 states and 18115 transitions. [2021-03-10 17:55:55,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:55:55,917 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:55:55,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:55,921 INFO L225 Difference]: With dead ends: 7107 [2021-03-10 17:55:55,922 INFO L226 Difference]: Without dead ends: 7107 [2021-03-10 17:55:55,922 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 4265.0ms TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:55:55,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2021-03-10 17:55:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 2564. [2021-03-10 17:55:55,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2562 states have (on average 2.66120218579235) internal successors, (6818), 2563 states have internal predecessors, (6818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 6818 transitions. [2021-03-10 17:55:55,957 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 6818 transitions. Word has length 88 [2021-03-10 17:55:55,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:55,957 INFO L480 AbstractCegarLoop]: Abstraction has 2564 states and 6818 transitions. [2021-03-10 17:55:55,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:55,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 6818 transitions. [2021-03-10 17:55:55,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:55:55,959 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:55,959 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:55,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-10 17:55:55,960 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:55,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:55,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1653669889, now seen corresponding path program 73 times [2021-03-10 17:55:55,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:55,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985023111] [2021-03-10 17:55:55,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:56,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985023111] [2021-03-10 17:55:56,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:56,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:55:56,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457019610] [2021-03-10 17:55:56,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:55:56,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:56,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:55:56,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:55:56,700 INFO L87 Difference]: Start difference. First operand 2564 states and 6818 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:57,709 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:55:57,928 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:55:58,183 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:55:58,652 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:55:58,881 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:55:59,139 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:55:59,376 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:55:59,680 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:56:00,180 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:56:00,408 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:56:00,623 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:56:00,870 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:56:01,059 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:56:01,276 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:56:01,504 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:56:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:01,518 INFO L93 Difference]: Finished difference Result 7012 states and 17924 transitions. [2021-03-10 17:56:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:56:01,519 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:01,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:01,524 INFO L225 Difference]: With dead ends: 7012 [2021-03-10 17:56:01,524 INFO L226 Difference]: Without dead ends: 7012 [2021-03-10 17:56:01,524 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 4243.1ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:56:01,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7012 states. [2021-03-10 17:56:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7012 to 2551. [2021-03-10 17:56:01,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2549 states have (on average 2.659866614358572) internal successors, (6780), 2550 states have internal predecessors, (6780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:01,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 6780 transitions. [2021-03-10 17:56:01,558 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 6780 transitions. Word has length 88 [2021-03-10 17:56:01,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:01,558 INFO L480 AbstractCegarLoop]: Abstraction has 2551 states and 6780 transitions. [2021-03-10 17:56:01,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:01,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 6780 transitions. [2021-03-10 17:56:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:01,560 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:01,560 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:01,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-10 17:56:01,560 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:01,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:01,561 INFO L82 PathProgramCache]: Analyzing trace with hash 752332915, now seen corresponding path program 74 times [2021-03-10 17:56:01,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:01,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895343659] [2021-03-10 17:56:01,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:02,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895343659] [2021-03-10 17:56:02,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:02,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:02,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089336530] [2021-03-10 17:56:02,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:02,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:02,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:02,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:02,342 INFO L87 Difference]: Start difference. First operand 2551 states and 6780 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:03,390 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:56:03,585 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:56:03,811 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:56:04,078 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:56:04,344 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:56:04,638 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:56:04,861 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-03-10 17:56:05,191 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-03-10 17:56:05,730 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-03-10 17:56:06,011 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:56:06,302 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:56:06,837 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:56:07,129 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:56:07,344 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:56:07,640 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2021-03-10 17:56:07,866 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:56:08,166 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-03-10 17:56:08,392 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:56:08,690 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2021-03-10 17:56:08,921 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:56:09,213 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:56:09,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:09,229 INFO L93 Difference]: Finished difference Result 8374 states and 21324 transitions. [2021-03-10 17:56:09,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:56:09,230 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:09,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:09,236 INFO L225 Difference]: With dead ends: 8374 [2021-03-10 17:56:09,236 INFO L226 Difference]: Without dead ends: 8374 [2021-03-10 17:56:09,237 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 5991.6ms TimeCoverageRelationStatistics Valid=842, Invalid=1914, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:56:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8374 states. [2021-03-10 17:56:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8374 to 2595. [2021-03-10 17:56:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2593 states have (on average 2.665638256845353) internal successors, (6912), 2594 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 6912 transitions. [2021-03-10 17:56:09,276 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 6912 transitions. Word has length 88 [2021-03-10 17:56:09,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:09,276 INFO L480 AbstractCegarLoop]: Abstraction has 2595 states and 6912 transitions. [2021-03-10 17:56:09,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 6912 transitions. [2021-03-10 17:56:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:09,278 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:09,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:09,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-10 17:56:09,278 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:09,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:09,279 INFO L82 PathProgramCache]: Analyzing trace with hash 110254515, now seen corresponding path program 75 times [2021-03-10 17:56:09,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:09,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028043295] [2021-03-10 17:56:09,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:10,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028043295] [2021-03-10 17:56:10,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:10,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:10,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336025041] [2021-03-10 17:56:10,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:10,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:10,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:10,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:10,156 INFO L87 Difference]: Start difference. First operand 2595 states and 6912 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:11,030 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:56:11,220 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:56:11,427 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:56:11,655 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:56:11,919 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:56:12,187 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:56:12,489 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:56:12,711 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:56:13,043 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2021-03-10 17:56:13,593 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:56:13,898 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:56:14,133 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:56:14,460 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:56:15,064 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:56:15,327 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-03-10 17:56:15,544 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 17:56:15,820 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-03-10 17:56:16,044 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 17:56:16,355 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2021-03-10 17:56:16,579 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 17:56:16,847 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:56:17,075 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 17:56:17,343 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-03-10 17:56:17,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:17,359 INFO L93 Difference]: Finished difference Result 8161 states and 20786 transitions. [2021-03-10 17:56:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:56:17,360 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:17,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:17,366 INFO L225 Difference]: With dead ends: 8161 [2021-03-10 17:56:17,366 INFO L226 Difference]: Without dead ends: 8161 [2021-03-10 17:56:17,366 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 6262.7ms TimeCoverageRelationStatistics Valid=835, Invalid=2027, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:56:17,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2021-03-10 17:56:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 2584. [2021-03-10 17:56:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2582 states have (on average 2.664213787761425) internal successors, (6879), 2583 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 6879 transitions. [2021-03-10 17:56:17,404 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 6879 transitions. Word has length 88 [2021-03-10 17:56:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:17,404 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 6879 transitions. [2021-03-10 17:56:17,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 6879 transitions. [2021-03-10 17:56:17,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:17,406 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:17,407 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:17,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-10 17:56:17,407 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:17,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:17,407 INFO L82 PathProgramCache]: Analyzing trace with hash 526806549, now seen corresponding path program 76 times [2021-03-10 17:56:17,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:17,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22538763] [2021-03-10 17:56:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:18,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:18,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22538763] [2021-03-10 17:56:18,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:18,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:18,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472332062] [2021-03-10 17:56:18,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:18,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:18,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:18,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:18,162 INFO L87 Difference]: Start difference. First operand 2584 states and 6879 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:19,031 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:56:19,225 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:56:19,439 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:56:19,681 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:56:19,932 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:56:20,191 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:56:20,475 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:56:21,022 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:56:21,257 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:56:21,516 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:56:21,785 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:56:22,143 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:56:22,743 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:56:22,979 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:56:23,204 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 17:56:23,450 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:56:23,678 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 17:56:23,938 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:56:24,174 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:56:24,394 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 17:56:24,640 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:56:24,875 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 17:56:25,111 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:56:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:25,127 INFO L93 Difference]: Finished difference Result 8543 states and 21618 transitions. [2021-03-10 17:56:25,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:56:25,128 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:25,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:25,134 INFO L225 Difference]: With dead ends: 8543 [2021-03-10 17:56:25,134 INFO L226 Difference]: Without dead ends: 8543 [2021-03-10 17:56:25,134 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 6075.4ms TimeCoverageRelationStatistics Valid=819, Invalid=2043, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:56:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8543 states. [2021-03-10 17:56:25,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8543 to 2573. [2021-03-10 17:56:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 2.662777129521587) internal successors, (6846), 2572 states have internal predecessors, (6846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6846 transitions. [2021-03-10 17:56:25,191 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6846 transitions. Word has length 88 [2021-03-10 17:56:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:25,191 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 6846 transitions. [2021-03-10 17:56:25,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6846 transitions. [2021-03-10 17:56:25,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:25,193 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:25,193 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:25,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-10 17:56:25,194 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:25,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:25,194 INFO L82 PathProgramCache]: Analyzing trace with hash 212715955, now seen corresponding path program 77 times [2021-03-10 17:56:25,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:25,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772041366] [2021-03-10 17:56:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:25,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772041366] [2021-03-10 17:56:25,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:25,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:25,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97532592] [2021-03-10 17:56:25,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:25,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:25,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:25,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:25,960 INFO L87 Difference]: Start difference. First operand 2573 states and 6846 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:26,779 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:56:26,969 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:56:27,175 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:56:27,402 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:56:27,649 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:56:28,174 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-10 17:56:28,393 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:56:28,652 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:56:28,908 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:56:29,168 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:56:29,488 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:56:29,990 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:56:30,211 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 17:56:30,443 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 17:56:30,650 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-10 17:56:30,869 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 17:56:31,096 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 17:56:31,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:31,107 INFO L93 Difference]: Finished difference Result 7524 states and 19186 transitions. [2021-03-10 17:56:31,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:56:31,108 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:31,114 INFO L225 Difference]: With dead ends: 7524 [2021-03-10 17:56:31,114 INFO L226 Difference]: Without dead ends: 7524 [2021-03-10 17:56:31,115 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4592.1ms TimeCoverageRelationStatistics Valid=611, Invalid=1645, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:56:31,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7524 states. [2021-03-10 17:56:31,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7524 to 2551. [2021-03-10 17:56:31,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2549 states have (on average 2.659866614358572) internal successors, (6780), 2550 states have internal predecessors, (6780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:31,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 6780 transitions. [2021-03-10 17:56:31,155 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 6780 transitions. Word has length 88 [2021-03-10 17:56:31,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:31,155 INFO L480 AbstractCegarLoop]: Abstraction has 2551 states and 6780 transitions. [2021-03-10 17:56:31,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:31,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 6780 transitions. [2021-03-10 17:56:31,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:31,157 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:31,157 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:31,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-10 17:56:31,157 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:31,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:31,158 INFO L82 PathProgramCache]: Analyzing trace with hash -817481767, now seen corresponding path program 78 times [2021-03-10 17:56:31,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:31,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628051424] [2021-03-10 17:56:31,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:31,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628051424] [2021-03-10 17:56:31,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:31,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:31,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049615581] [2021-03-10 17:56:31,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:31,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:31,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:31,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:31,989 INFO L87 Difference]: Start difference. First operand 2551 states and 6780 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:32,883 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:56:33,078 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:56:33,286 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:56:33,801 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:56:34,026 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:56:34,269 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:56:34,535 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:56:34,825 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:56:35,147 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:56:35,654 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:56:35,875 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 17:56:36,074 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:56:36,283 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 17:56:36,465 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:56:36,676 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 17:56:36,902 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 17:56:36,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:36,918 INFO L93 Difference]: Finished difference Result 6657 states and 16916 transitions. [2021-03-10 17:56:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:56:36,919 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:36,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:36,924 INFO L225 Difference]: With dead ends: 6657 [2021-03-10 17:56:36,925 INFO L226 Difference]: Without dead ends: 6657 [2021-03-10 17:56:36,925 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 4340.9ms TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:56:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6657 states. [2021-03-10 17:56:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6657 to 2557. [2021-03-10 17:56:36,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2555 states have (on average 2.659491193737769) internal successors, (6795), 2556 states have internal predecessors, (6795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6795 transitions. [2021-03-10 17:56:36,960 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6795 transitions. Word has length 88 [2021-03-10 17:56:36,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:36,960 INFO L480 AbstractCegarLoop]: Abstraction has 2557 states and 6795 transitions. [2021-03-10 17:56:36,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6795 transitions. [2021-03-10 17:56:36,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:36,962 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:36,962 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:36,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-10 17:56:36,963 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:36,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:36,963 INFO L82 PathProgramCache]: Analyzing trace with hash 506796067, now seen corresponding path program 79 times [2021-03-10 17:56:36,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:36,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922353319] [2021-03-10 17:56:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:37,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922353319] [2021-03-10 17:56:37,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:37,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:37,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923769203] [2021-03-10 17:56:37,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:37,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:37,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:37,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:37,776 INFO L87 Difference]: Start difference. First operand 2557 states and 6795 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:38,643 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:56:38,830 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:56:39,034 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:56:39,512 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:56:39,738 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:56:39,983 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:56:40,256 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:56:40,501 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:56:40,825 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:56:41,376 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:56:41,601 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 17:56:41,808 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:56:42,029 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 17:56:42,211 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:56:42,415 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 17:56:42,635 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 17:56:42,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:42,651 INFO L93 Difference]: Finished difference Result 6771 states and 17151 transitions. [2021-03-10 17:56:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:56:42,652 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:42,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:42,656 INFO L225 Difference]: With dead ends: 6771 [2021-03-10 17:56:42,656 INFO L226 Difference]: Without dead ends: 6771 [2021-03-10 17:56:42,657 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 4315.6ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:56:42,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2021-03-10 17:56:42,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 2555. [2021-03-10 17:56:42,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2553 states have (on average 2.6596161378770073) internal successors, (6790), 2554 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:42,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 6790 transitions. [2021-03-10 17:56:42,691 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 6790 transitions. Word has length 88 [2021-03-10 17:56:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:42,691 INFO L480 AbstractCegarLoop]: Abstraction has 2555 states and 6790 transitions. [2021-03-10 17:56:42,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 6790 transitions. [2021-03-10 17:56:42,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:42,693 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:42,693 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:42,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-10 17:56:42,694 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:42,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:42,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1947068395, now seen corresponding path program 80 times [2021-03-10 17:56:42,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:42,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970774628] [2021-03-10 17:56:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:43,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970774628] [2021-03-10 17:56:43,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:43,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:43,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997414649] [2021-03-10 17:56:43,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:43,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:43,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:43,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:43,494 INFO L87 Difference]: Start difference. First operand 2555 states and 6790 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:44,403 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:56:44,604 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 17:56:44,821 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:56:45,372 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:56:45,591 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 17:56:45,835 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 17:56:46,075 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:56:46,380 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:56:46,627 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:56:46,972 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:56:47,498 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:56:47,737 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 17:56:47,943 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:56:48,160 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 17:56:48,343 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:56:48,560 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 17:56:48,787 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 17:56:48,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:48,802 INFO L93 Difference]: Finished difference Result 6569 states and 16744 transitions. [2021-03-10 17:56:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:56:48,803 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:48,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:48,808 INFO L225 Difference]: With dead ends: 6569 [2021-03-10 17:56:48,808 INFO L226 Difference]: Without dead ends: 6569 [2021-03-10 17:56:48,808 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 4593.6ms TimeCoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:56:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6569 states. [2021-03-10 17:56:48,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6569 to 2518. [2021-03-10 17:56:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2516 states have (on average 2.6554054054054053) internal successors, (6681), 2517 states have internal predecessors, (6681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 6681 transitions. [2021-03-10 17:56:48,840 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 6681 transitions. Word has length 88 [2021-03-10 17:56:48,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:48,840 INFO L480 AbstractCegarLoop]: Abstraction has 2518 states and 6681 transitions. [2021-03-10 17:56:48,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 6681 transitions. [2021-03-10 17:56:48,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:48,842 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:48,842 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:48,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-10 17:56:48,842 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:48,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:48,843 INFO L82 PathProgramCache]: Analyzing trace with hash -348888001, now seen corresponding path program 81 times [2021-03-10 17:56:48,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:48,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873548190] [2021-03-10 17:56:48,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:49,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:49,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873548190] [2021-03-10 17:56:49,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:49,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:49,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303192270] [2021-03-10 17:56:49,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:49,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:49,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:49,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:49,635 INFO L87 Difference]: Start difference. First operand 2518 states and 6681 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:50,615 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-03-10 17:56:51,123 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-03-10 17:56:51,299 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-03-10 17:56:51,533 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:56:51,795 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:56:52,117 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:56:52,419 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:56:52,724 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:56:53,185 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2021-03-10 17:56:53,372 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-03-10 17:56:53,546 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 17:56:53,729 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-10 17:56:53,878 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-03-10 17:56:54,058 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 17:56:54,254 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-03-10 17:56:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:54,270 INFO L93 Difference]: Finished difference Result 6006 states and 15321 transitions. [2021-03-10 17:56:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:56:54,271 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:54,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:54,277 INFO L225 Difference]: With dead ends: 6006 [2021-03-10 17:56:54,277 INFO L226 Difference]: Without dead ends: 6006 [2021-03-10 17:56:54,277 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3936.2ms TimeCoverageRelationStatistics Valid=497, Invalid=1573, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:56:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2021-03-10 17:56:54,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 2520. [2021-03-10 17:56:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 2518 states have (on average 2.6552819698173153) internal successors, (6686), 2519 states have internal predecessors, (6686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:54,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 6686 transitions. [2021-03-10 17:56:54,325 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 6686 transitions. Word has length 88 [2021-03-10 17:56:54,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:54,325 INFO L480 AbstractCegarLoop]: Abstraction has 2520 states and 6686 transitions. [2021-03-10 17:56:54,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 6686 transitions. [2021-03-10 17:56:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:54,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:54,327 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:54,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-10 17:56:54,328 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:54,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:54,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1047991721, now seen corresponding path program 82 times [2021-03-10 17:56:54,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:54,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919235984] [2021-03-10 17:56:54,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:55,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:55,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919235984] [2021-03-10 17:56:55,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:55,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:56:55,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099702530] [2021-03-10 17:56:55,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:56:55,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:55,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:56:55,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:56:55,148 INFO L87 Difference]: Start difference. First operand 2520 states and 6686 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:56,120 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-03-10 17:56:56,604 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-03-10 17:56:56,796 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:56:57,013 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:56:57,277 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:56:57,610 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:56:57,940 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:56:58,258 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:56:58,738 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2021-03-10 17:56:58,926 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-03-10 17:56:59,103 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 17:56:59,294 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-10 17:56:59,442 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-03-10 17:56:59,629 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 17:56:59,829 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-03-10 17:56:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:59,845 INFO L93 Difference]: Finished difference Result 6125 states and 15557 transitions. [2021-03-10 17:56:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:56:59,846 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:56:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:59,851 INFO L225 Difference]: With dead ends: 6125 [2021-03-10 17:56:59,851 INFO L226 Difference]: Without dead ends: 6125 [2021-03-10 17:56:59,852 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 4006.3ms TimeCoverageRelationStatistics Valid=497, Invalid=1573, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:56:59,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6125 states. [2021-03-10 17:56:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6125 to 2522. [2021-03-10 17:56:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 2520 states have (on average 2.65515873015873) internal successors, (6691), 2521 states have internal predecessors, (6691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 6691 transitions. [2021-03-10 17:56:59,886 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 6691 transitions. Word has length 88 [2021-03-10 17:56:59,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:59,886 INFO L480 AbstractCegarLoop]: Abstraction has 2522 states and 6691 transitions. [2021-03-10 17:56:59,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:59,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 6691 transitions. [2021-03-10 17:56:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:56:59,888 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:59,888 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:59,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-10 17:56:59,888 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:59,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:59,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1976115127, now seen corresponding path program 83 times [2021-03-10 17:56:59,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:59,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127828938] [2021-03-10 17:56:59,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:00,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:00,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127828938] [2021-03-10 17:57:00,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:00,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:00,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540830878] [2021-03-10 17:57:00,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:00,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:00,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:00,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:00,794 INFO L87 Difference]: Start difference. First operand 2522 states and 6691 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:01,796 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:57:02,324 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-03-10 17:57:02,516 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:57:02,731 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:57:02,996 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:57:03,262 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:57:03,556 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:57:03,832 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:57:04,173 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:57:04,708 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-03-10 17:57:04,911 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-10 17:57:05,098 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-03-10 17:57:05,272 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:57:05,406 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-03-10 17:57:05,584 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:57:05,784 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-03-10 17:57:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:05,800 INFO L93 Difference]: Finished difference Result 5995 states and 15274 transitions. [2021-03-10 17:57:05,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:57:05,801 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:05,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:05,805 INFO L225 Difference]: With dead ends: 5995 [2021-03-10 17:57:05,805 INFO L226 Difference]: Without dead ends: 5995 [2021-03-10 17:57:05,805 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4265.9ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:57:05,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5995 states. [2021-03-10 17:57:05,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5995 to 2528. [2021-03-10 17:57:05,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2526 states have (on average 2.6547901821060966) internal successors, (6706), 2527 states have internal predecessors, (6706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 6706 transitions. [2021-03-10 17:57:05,839 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 6706 transitions. Word has length 88 [2021-03-10 17:57:05,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:05,839 INFO L480 AbstractCegarLoop]: Abstraction has 2528 states and 6706 transitions. [2021-03-10 17:57:05,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:05,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 6706 transitions. [2021-03-10 17:57:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:05,841 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:05,841 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:05,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-10 17:57:05,841 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:05,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:05,841 INFO L82 PathProgramCache]: Analyzing trace with hash -994574335, now seen corresponding path program 84 times [2021-03-10 17:57:05,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:05,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178151428] [2021-03-10 17:57:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:06,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:06,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178151428] [2021-03-10 17:57:06,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:06,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:06,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486581685] [2021-03-10 17:57:06,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:06,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:06,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:06,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:06,775 INFO L87 Difference]: Start difference. First operand 2528 states and 6706 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:07,670 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:57:08,110 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-03-10 17:57:08,290 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:57:08,499 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:57:08,765 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:57:09,027 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:57:09,321 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:57:09,572 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:57:09,913 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:57:10,417 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-03-10 17:57:10,602 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-10 17:57:10,770 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-03-10 17:57:10,959 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:57:11,108 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-03-10 17:57:11,289 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:57:11,480 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-03-10 17:57:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:11,497 INFO L93 Difference]: Finished difference Result 6109 states and 15509 transitions. [2021-03-10 17:57:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:57:11,498 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:11,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:11,503 INFO L225 Difference]: With dead ends: 6109 [2021-03-10 17:57:11,503 INFO L226 Difference]: Without dead ends: 6109 [2021-03-10 17:57:11,503 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4250.7ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:57:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2021-03-10 17:57:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 2526. [2021-03-10 17:57:11,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 2524 states have (on average 2.6549128367670365) internal successors, (6701), 2525 states have internal predecessors, (6701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 6701 transitions. [2021-03-10 17:57:11,540 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 6701 transitions. Word has length 88 [2021-03-10 17:57:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:11,540 INFO L480 AbstractCegarLoop]: Abstraction has 2526 states and 6701 transitions. [2021-03-10 17:57:11,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 6701 transitions. [2021-03-10 17:57:11,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:11,542 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:11,542 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:11,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-10 17:57:11,542 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:11,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:11,543 INFO L82 PathProgramCache]: Analyzing trace with hash 846528499, now seen corresponding path program 85 times [2021-03-10 17:57:11,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:11,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689908573] [2021-03-10 17:57:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:12,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689908573] [2021-03-10 17:57:12,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:12,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:12,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907321747] [2021-03-10 17:57:12,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:12,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:12,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:12,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:12,440 INFO L87 Difference]: Start difference. First operand 2526 states and 6701 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:13,397 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 17:57:13,842 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-03-10 17:57:14,027 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:57:14,246 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:57:14,482 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 17:57:14,743 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 17:57:15,004 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:57:15,318 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:57:15,591 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:57:15,957 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:57:16,459 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-03-10 17:57:16,661 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-10 17:57:16,838 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-03-10 17:57:17,029 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:57:17,181 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-03-10 17:57:17,361 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:57:17,555 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-03-10 17:57:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:17,569 INFO L93 Difference]: Finished difference Result 6052 states and 15397 transitions. [2021-03-10 17:57:17,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:57:17,570 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:17,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:17,574 INFO L225 Difference]: With dead ends: 6052 [2021-03-10 17:57:17,574 INFO L226 Difference]: Without dead ends: 6052 [2021-03-10 17:57:17,574 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 4549.3ms TimeCoverageRelationStatistics Valid=566, Invalid=1690, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:57:17,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6052 states. [2021-03-10 17:57:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6052 to 2507. [2021-03-10 17:57:17,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 2505 states have (on average 2.6538922155688622) internal successors, (6648), 2506 states have internal predecessors, (6648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:17,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6648 transitions. [2021-03-10 17:57:17,607 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6648 transitions. Word has length 88 [2021-03-10 17:57:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:17,607 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6648 transitions. [2021-03-10 17:57:17,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6648 transitions. [2021-03-10 17:57:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:17,609 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:17,609 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:17,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-10 17:57:17,609 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:17,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1013647857, now seen corresponding path program 86 times [2021-03-10 17:57:17,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:17,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106352270] [2021-03-10 17:57:17,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:18,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106352270] [2021-03-10 17:57:18,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:18,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:18,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418882771] [2021-03-10 17:57:18,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:18,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:18,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:18,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:18,477 INFO L87 Difference]: Start difference. First operand 2507 states and 6648 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:19,481 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-03-10 17:57:19,750 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:57:19,983 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:57:20,665 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:57:20,912 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:57:21,230 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:57:21,547 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:57:21,879 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:57:22,380 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:57:22,606 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:57:22,847 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-10 17:57:23,088 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-03-10 17:57:23,296 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:57:23,519 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-03-10 17:57:23,764 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 17:57:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:23,775 INFO L93 Difference]: Finished difference Result 5383 states and 13660 transitions. [2021-03-10 17:57:23,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:57:23,776 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:23,780 INFO L225 Difference]: With dead ends: 5383 [2021-03-10 17:57:23,780 INFO L226 Difference]: Without dead ends: 5383 [2021-03-10 17:57:23,780 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 4534.4ms TimeCoverageRelationStatistics Valid=527, Invalid=1543, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:57:23,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5383 states. [2021-03-10 17:57:23,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5383 to 2573. [2021-03-10 17:57:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 2.662777129521587) internal successors, (6846), 2572 states have internal predecessors, (6846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6846 transitions. [2021-03-10 17:57:23,811 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6846 transitions. Word has length 88 [2021-03-10 17:57:23,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:23,811 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 6846 transitions. [2021-03-10 17:57:23,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6846 transitions. [2021-03-10 17:57:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:23,813 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:23,814 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:23,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-10 17:57:23,814 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:23,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1382127921, now seen corresponding path program 87 times [2021-03-10 17:57:23,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:23,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521183872] [2021-03-10 17:57:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:24,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:24,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521183872] [2021-03-10 17:57:24,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:24,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:24,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461816296] [2021-03-10 17:57:24,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:24,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:24,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:24,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:24,712 INFO L87 Difference]: Start difference. First operand 2573 states and 6846 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:25,563 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2021-03-10 17:57:25,764 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-03-10 17:57:26,031 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:57:26,265 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:57:26,573 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:57:26,962 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:57:27,299 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:57:27,650 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:57:28,324 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-03-10 17:57:28,874 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:57:29,187 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:57:29,510 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:57:29,823 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:57:30,150 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:57:30,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:30,163 INFO L93 Difference]: Finished difference Result 6182 states and 15830 transitions. [2021-03-10 17:57:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 17:57:30,165 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:30,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:30,169 INFO L225 Difference]: With dead ends: 6182 [2021-03-10 17:57:30,169 INFO L226 Difference]: Without dead ends: 6182 [2021-03-10 17:57:30,169 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 4711.0ms TimeCoverageRelationStatistics Valid=530, Invalid=1362, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 17:57:30,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6182 states. [2021-03-10 17:57:30,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6182 to 2705. [2021-03-10 17:57:30,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2703 states have (on average 2.6792452830188678) internal successors, (7242), 2704 states have internal predecessors, (7242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:30,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 7242 transitions. [2021-03-10 17:57:30,205 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 7242 transitions. Word has length 88 [2021-03-10 17:57:30,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:30,205 INFO L480 AbstractCegarLoop]: Abstraction has 2705 states and 7242 transitions. [2021-03-10 17:57:30,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 7242 transitions. [2021-03-10 17:57:30,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:30,207 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:30,207 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:30,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-10 17:57:30,207 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:30,208 INFO L82 PathProgramCache]: Analyzing trace with hash 274269711, now seen corresponding path program 88 times [2021-03-10 17:57:30,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:30,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869165808] [2021-03-10 17:57:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:31,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869165808] [2021-03-10 17:57:31,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:31,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:31,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366469643] [2021-03-10 17:57:31,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:31,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:31,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:31,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:31,185 INFO L87 Difference]: Start difference. First operand 2705 states and 7242 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:32,101 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2021-03-10 17:57:32,304 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-03-10 17:57:32,569 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:57:32,805 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:57:33,095 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:57:33,484 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:57:33,839 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-03-10 17:57:34,202 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-03-10 17:57:34,868 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:57:35,184 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:57:35,828 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2021-03-10 17:57:36,153 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-03-10 17:57:36,478 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-03-10 17:57:36,798 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-03-10 17:57:37,138 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:57:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:37,150 INFO L93 Difference]: Finished difference Result 5980 states and 15315 transitions. [2021-03-10 17:57:37,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 17:57:37,152 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:37,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:37,157 INFO L225 Difference]: With dead ends: 5980 [2021-03-10 17:57:37,157 INFO L226 Difference]: Without dead ends: 5980 [2021-03-10 17:57:37,157 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 5150.3ms TimeCoverageRelationStatistics Valid=539, Invalid=1441, Unknown=0, NotChecked=0, Total=1980 [2021-03-10 17:57:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5980 states. [2021-03-10 17:57:37,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5980 to 2672. [2021-03-10 17:57:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2670 states have (on average 2.6752808988764043) internal successors, (7143), 2671 states have internal predecessors, (7143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 7143 transitions. [2021-03-10 17:57:37,204 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 7143 transitions. Word has length 88 [2021-03-10 17:57:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:37,204 INFO L480 AbstractCegarLoop]: Abstraction has 2672 states and 7143 transitions. [2021-03-10 17:57:37,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 7143 transitions. [2021-03-10 17:57:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:37,206 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:37,207 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:37,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-10 17:57:37,207 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:37,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:37,207 INFO L82 PathProgramCache]: Analyzing trace with hash -292893967, now seen corresponding path program 89 times [2021-03-10 17:57:37,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:37,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192211164] [2021-03-10 17:57:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:38,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:38,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192211164] [2021-03-10 17:57:38,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:38,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:38,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694420785] [2021-03-10 17:57:38,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:38,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:38,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:38,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:38,088 INFO L87 Difference]: Start difference. First operand 2672 states and 7143 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:38,999 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2021-03-10 17:57:39,210 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-03-10 17:57:39,481 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:57:39,725 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:57:40,040 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:57:40,473 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:57:41,212 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:57:41,531 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:57:41,880 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:57:42,457 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-03-10 17:57:42,767 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-03-10 17:57:43,074 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2021-03-10 17:57:43,393 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2021-03-10 17:57:43,667 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:57:43,960 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-03-10 17:57:44,283 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2021-03-10 17:57:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:44,303 INFO L93 Difference]: Finished difference Result 6084 states and 15519 transitions. [2021-03-10 17:57:44,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:57:44,305 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:44,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:44,309 INFO L225 Difference]: With dead ends: 6084 [2021-03-10 17:57:44,309 INFO L226 Difference]: Without dead ends: 6084 [2021-03-10 17:57:44,310 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 5211.7ms TimeCoverageRelationStatistics Valid=557, Invalid=1513, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:57:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2021-03-10 17:57:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 2639. [2021-03-10 17:57:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2637 states have (on average 2.671217292377702) internal successors, (7044), 2638 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 7044 transitions. [2021-03-10 17:57:44,346 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 7044 transitions. Word has length 88 [2021-03-10 17:57:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:44,346 INFO L480 AbstractCegarLoop]: Abstraction has 2639 states and 7044 transitions. [2021-03-10 17:57:44,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 7044 transitions. [2021-03-10 17:57:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:44,348 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:44,348 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:44,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-10 17:57:44,348 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:44,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:44,348 INFO L82 PathProgramCache]: Analyzing trace with hash -963611121, now seen corresponding path program 90 times [2021-03-10 17:57:44,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:44,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926472322] [2021-03-10 17:57:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:45,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926472322] [2021-03-10 17:57:45,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:45,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:45,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134664767] [2021-03-10 17:57:45,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:45,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:45,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:45,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:45,349 INFO L87 Difference]: Start difference. First operand 2639 states and 7044 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:46,264 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2021-03-10 17:57:46,481 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-03-10 17:57:46,751 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:57:46,993 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 17:57:47,290 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-10 17:57:48,013 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:57:48,322 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-03-10 17:57:48,654 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-03-10 17:57:49,015 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-03-10 17:57:49,562 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2021-03-10 17:57:49,861 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-03-10 17:57:50,150 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-03-10 17:57:50,449 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-03-10 17:57:50,693 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-10 17:57:50,971 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-03-10 17:57:51,269 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-03-10 17:57:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:51,288 INFO L93 Difference]: Finished difference Result 6135 states and 15633 transitions. [2021-03-10 17:57:51,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:57:51,290 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:51,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:51,295 INFO L225 Difference]: With dead ends: 6135 [2021-03-10 17:57:51,295 INFO L226 Difference]: Without dead ends: 6135 [2021-03-10 17:57:51,295 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 5124.3ms TimeCoverageRelationStatistics Valid=542, Invalid=1528, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:57:51,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2021-03-10 17:57:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 2540. [2021-03-10 17:57:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2538 states have (on average 2.65839243498818) internal successors, (6747), 2539 states have internal predecessors, (6747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:51,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6747 transitions. [2021-03-10 17:57:51,331 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6747 transitions. Word has length 88 [2021-03-10 17:57:51,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:51,331 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6747 transitions. [2021-03-10 17:57:51,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:51,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6747 transitions. [2021-03-10 17:57:51,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:51,333 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:51,333 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:51,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-10 17:57:51,333 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:51,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:51,334 INFO L82 PathProgramCache]: Analyzing trace with hash -208477199, now seen corresponding path program 91 times [2021-03-10 17:57:51,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:51,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743423718] [2021-03-10 17:57:51,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:52,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743423718] [2021-03-10 17:57:52,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:52,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:52,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711974878] [2021-03-10 17:57:52,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:52,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:52,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:52,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:52,308 INFO L87 Difference]: Start difference. First operand 2540 states and 6747 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:53,166 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2021-03-10 17:57:53,383 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-03-10 17:57:53,659 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-10 17:57:54,305 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:57:54,541 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 17:57:54,813 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:57:55,183 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:57:55,528 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:57:55,890 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 17:57:56,487 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-03-10 17:57:56,728 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-10 17:57:56,954 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-03-10 17:57:57,187 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-03-10 17:57:57,388 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 17:57:57,612 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-03-10 17:57:57,863 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-03-10 17:57:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:57,882 INFO L93 Difference]: Finished difference Result 5832 states and 14775 transitions. [2021-03-10 17:57:57,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:57:57,884 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:57:57,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:57,887 INFO L225 Difference]: With dead ends: 5832 [2021-03-10 17:57:57,887 INFO L226 Difference]: Without dead ends: 5832 [2021-03-10 17:57:57,888 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 4782.7ms TimeCoverageRelationStatistics Valid=512, Invalid=1558, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 17:57:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5832 states. [2021-03-10 17:57:57,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5832 to 2542. [2021-03-10 17:57:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2540 states have (on average 2.658267716535433) internal successors, (6752), 2541 states have internal predecessors, (6752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 6752 transitions. [2021-03-10 17:57:57,928 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 6752 transitions. Word has length 88 [2021-03-10 17:57:57,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:57,928 INFO L480 AbstractCegarLoop]: Abstraction has 2542 states and 6752 transitions. [2021-03-10 17:57:57,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 6752 transitions. [2021-03-10 17:57:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:57:57,930 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:57,930 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:57,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-10 17:57:57,930 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:57,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:57,930 INFO L82 PathProgramCache]: Analyzing trace with hash 719646207, now seen corresponding path program 92 times [2021-03-10 17:57:57,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:57,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386443018] [2021-03-10 17:57:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:58,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386443018] [2021-03-10 17:57:58,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:58,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:57:58,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781488860] [2021-03-10 17:57:58,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:57:58,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:58,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:57:58,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:57:58,977 INFO L87 Difference]: Start difference. First operand 2542 states and 6752 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:59,850 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:00,039 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:00,303 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:00,863 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 17:58:01,089 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:58:01,366 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:58:01,664 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:58:01,984 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:58:02,296 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:58:02,677 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:58:03,230 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-03-10 17:58:03,465 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-03-10 17:58:03,676 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-03-10 17:58:03,898 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-03-10 17:58:04,095 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 17:58:04,316 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-03-10 17:58:04,543 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-03-10 17:58:04,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:04,556 INFO L93 Difference]: Finished difference Result 5878 states and 14866 transitions. [2021-03-10 17:58:04,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:58:04,558 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:58:04,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:04,561 INFO L225 Difference]: With dead ends: 5878 [2021-03-10 17:58:04,561 INFO L226 Difference]: Without dead ends: 5878 [2021-03-10 17:58:04,562 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4991.8ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:58:04,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2021-03-10 17:58:04,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 2548. [2021-03-10 17:58:04,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2546 states have (on average 2.6578947368421053) internal successors, (6767), 2547 states have internal predecessors, (6767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 6767 transitions. [2021-03-10 17:58:04,599 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 6767 transitions. Word has length 88 [2021-03-10 17:58:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:04,599 INFO L480 AbstractCegarLoop]: Abstraction has 2548 states and 6767 transitions. [2021-03-10 17:58:04,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:04,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 6767 transitions. [2021-03-10 17:58:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:58:04,601 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:04,601 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:04,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-10 17:58:04,601 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:04,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:04,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2043924041, now seen corresponding path program 93 times [2021-03-10 17:58:04,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:04,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097578656] [2021-03-10 17:58:04,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:05,356 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 17:58:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:05,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097578656] [2021-03-10 17:58:05,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:05,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:58:05,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783701505] [2021-03-10 17:58:05,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:58:05,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:05,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:58:05,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:58:05,609 INFO L87 Difference]: Start difference. First operand 2548 states and 6767 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:06,494 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:06,671 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:06,911 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:07,483 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 17:58:07,718 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:58:07,995 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:58:08,305 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:58:08,631 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:58:08,912 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:58:09,286 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:58:09,877 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-03-10 17:58:10,113 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-03-10 17:58:10,325 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-03-10 17:58:10,552 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-03-10 17:58:10,738 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 17:58:10,949 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-03-10 17:58:11,189 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-03-10 17:58:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:11,208 INFO L93 Difference]: Finished difference Result 5992 states and 15101 transitions. [2021-03-10 17:58:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:58:11,209 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:58:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:11,214 INFO L225 Difference]: With dead ends: 5992 [2021-03-10 17:58:11,214 INFO L226 Difference]: Without dead ends: 5992 [2021-03-10 17:58:11,214 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4932.1ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:58:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2021-03-10 17:58:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 2546. [2021-03-10 17:58:11,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2544 states have (on average 2.6580188679245285) internal successors, (6762), 2545 states have internal predecessors, (6762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:11,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 6762 transitions. [2021-03-10 17:58:11,252 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 6762 transitions. Word has length 88 [2021-03-10 17:58:11,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:11,253 INFO L480 AbstractCegarLoop]: Abstraction has 2546 states and 6762 transitions. [2021-03-10 17:58:11,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:11,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 6762 transitions. [2021-03-10 17:58:11,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:58:11,255 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:11,255 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:11,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-10 17:58:11,255 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:11,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:11,255 INFO L82 PathProgramCache]: Analyzing trace with hash -409940421, now seen corresponding path program 94 times [2021-03-10 17:58:11,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:11,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258901871] [2021-03-10 17:58:11,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:12,068 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 17:58:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:12,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258901871] [2021-03-10 17:58:12,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:12,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:58:12,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105583156] [2021-03-10 17:58:12,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:58:12,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:12,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:58:12,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:58:12,326 INFO L87 Difference]: Start difference. First operand 2546 states and 6762 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:13,197 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:13,400 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:13,671 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:14,248 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 17:58:14,478 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 17:58:14,730 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 17:58:15,010 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 17:58:15,306 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:58:15,654 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:58:15,952 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:58:16,358 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 17:58:16,955 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2021-03-10 17:58:17,204 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-03-10 17:58:17,429 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-03-10 17:58:17,659 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-03-10 17:58:17,846 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 17:58:18,051 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-03-10 17:58:18,282 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-03-10 17:58:18,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:18,301 INFO L93 Difference]: Finished difference Result 5935 states and 14989 transitions. [2021-03-10 17:58:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:58:18,302 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:58:18,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:18,307 INFO L225 Difference]: With dead ends: 5935 [2021-03-10 17:58:18,307 INFO L226 Difference]: Without dead ends: 5935 [2021-03-10 17:58:18,307 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 5289.3ms TimeCoverageRelationStatistics Valid=581, Invalid=1675, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 17:58:18,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2021-03-10 17:58:18,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 2540. [2021-03-10 17:58:18,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2538 states have (on average 2.65839243498818) internal successors, (6747), 2539 states have internal predecessors, (6747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6747 transitions. [2021-03-10 17:58:18,341 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6747 transitions. Word has length 88 [2021-03-10 17:58:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:18,341 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6747 transitions. [2021-03-10 17:58:18,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:18,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6747 transitions. [2021-03-10 17:58:18,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:58:18,343 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:18,343 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:18,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-10 17:58:18,343 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:18,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1486234973, now seen corresponding path program 95 times [2021-03-10 17:58:18,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:18,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347227156] [2021-03-10 17:58:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:19,202 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 17:58:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:19,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347227156] [2021-03-10 17:58:19,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:19,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:58:19,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675253387] [2021-03-10 17:58:19,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:58:19,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:19,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:58:19,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:58:19,490 INFO L87 Difference]: Start difference. First operand 2540 states and 6747 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:20,421 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:20,607 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:20,870 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:21,117 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:58:21,415 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:58:21,722 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:58:22,056 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:58:22,351 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:58:22,738 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-03-10 17:58:23,421 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:58:23,776 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:58:24,430 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:58:24,795 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-03-10 17:58:25,081 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:58:25,450 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2021-03-10 17:58:25,771 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:58:26,167 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-03-10 17:58:26,482 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:58:26,851 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-03-10 17:58:27,166 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:58:27,519 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:58:27,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:27,541 INFO L93 Difference]: Finished difference Result 7732 states and 19700 transitions. [2021-03-10 17:58:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:58:27,543 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:58:27,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:27,548 INFO L225 Difference]: With dead ends: 7732 [2021-03-10 17:58:27,548 INFO L226 Difference]: Without dead ends: 7732 [2021-03-10 17:58:27,548 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 7431.8ms TimeCoverageRelationStatistics Valid=776, Invalid=1774, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 17:58:27,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2021-03-10 17:58:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 2595. [2021-03-10 17:58:27,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2593 states have (on average 2.665638256845353) internal successors, (6912), 2594 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 6912 transitions. [2021-03-10 17:58:27,600 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 6912 transitions. Word has length 88 [2021-03-10 17:58:27,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:27,600 INFO L480 AbstractCegarLoop]: Abstraction has 2595 states and 6912 transitions. [2021-03-10 17:58:27,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:27,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 6912 transitions. [2021-03-10 17:58:27,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:58:27,602 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:27,602 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:27,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-10 17:58:27,602 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:27,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1264706235, now seen corresponding path program 96 times [2021-03-10 17:58:27,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:27,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988804000] [2021-03-10 17:58:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:28,604 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 17:58:28,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:28,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988804000] [2021-03-10 17:58:28,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:28,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:58:28,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770483396] [2021-03-10 17:58:28,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:58:28,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:28,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:58:28,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:58:28,830 INFO L87 Difference]: Start difference. First operand 2595 states and 6912 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:29,753 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:29,945 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:30,216 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:30,500 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:58:30,879 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:58:31,251 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:58:31,630 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:58:31,954 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:58:32,332 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:58:33,135 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:58:33,455 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-10 17:58:33,840 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:58:34,587 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:58:34,894 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2021-03-10 17:58:35,203 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:58:35,552 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-03-10 17:58:35,905 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:58:36,260 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:58:36,579 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:58:36,906 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2021-03-10 17:58:37,212 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:58:37,538 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-03-10 17:58:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:37,557 INFO L93 Difference]: Finished difference Result 7519 states and 19162 transitions. [2021-03-10 17:58:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:58:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:58:37,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:37,564 INFO L225 Difference]: With dead ends: 7519 [2021-03-10 17:58:37,565 INFO L226 Difference]: Without dead ends: 7519 [2021-03-10 17:58:37,565 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 7760.6ms TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:58:37,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7519 states. [2021-03-10 17:58:37,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7519 to 2584. [2021-03-10 17:58:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2582 states have (on average 2.664213787761425) internal successors, (6879), 2583 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:37,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 6879 transitions. [2021-03-10 17:58:37,603 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 6879 transitions. Word has length 88 [2021-03-10 17:58:37,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:37,603 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 6879 transitions. [2021-03-10 17:58:37,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:37,603 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 6879 transitions. [2021-03-10 17:58:37,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:58:37,605 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:37,605 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:37,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-10 17:58:37,605 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:37,606 INFO L82 PathProgramCache]: Analyzing trace with hash 2129059327, now seen corresponding path program 97 times [2021-03-10 17:58:37,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:37,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219303731] [2021-03-10 17:58:37,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:38,516 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 17:58:38,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:38,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219303731] [2021-03-10 17:58:38,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:38,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:58:38,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180515639] [2021-03-10 17:58:38,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:58:38,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:38,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:58:38,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:58:38,759 INFO L87 Difference]: Start difference. First operand 2584 states and 6879 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:39,454 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 17:58:39,708 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:39,898 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:40,164 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:40,447 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:58:40,822 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:58:41,188 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:58:41,563 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:58:42,344 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:58:42,650 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:58:42,988 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:58:43,396 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:58:44,130 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 17:58:44,446 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 17:58:44,753 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 17:58:45,041 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:58:45,352 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:58:45,674 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:58:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:45,688 INFO L93 Difference]: Finished difference Result 7047 states and 17934 transitions. [2021-03-10 17:58:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:58:45,690 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:58:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:45,695 INFO L225 Difference]: With dead ends: 7047 [2021-03-10 17:58:45,695 INFO L226 Difference]: Without dead ends: 7047 [2021-03-10 17:58:45,695 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 6009.1ms TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:58:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7047 states. [2021-03-10 17:58:45,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7047 to 2573. [2021-03-10 17:58:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 2.662777129521587) internal successors, (6846), 2572 states have internal predecessors, (6846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:45,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6846 transitions. [2021-03-10 17:58:45,731 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6846 transitions. Word has length 88 [2021-03-10 17:58:45,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:45,732 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 6846 transitions. [2021-03-10 17:58:45,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6846 transitions. [2021-03-10 17:58:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:58:45,734 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:45,734 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:45,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-10 17:58:45,734 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:45,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:45,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1488053465, now seen corresponding path program 98 times [2021-03-10 17:58:45,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:45,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326252668] [2021-03-10 17:58:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:46,565 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 17:58:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:46,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326252668] [2021-03-10 17:58:46,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:46,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:58:46,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101669709] [2021-03-10 17:58:46,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:58:46,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:46,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:58:46,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:58:46,845 INFO L87 Difference]: Start difference. First operand 2573 states and 6846 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:47,743 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:47,941 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:48,200 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:48,462 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:58:48,813 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:58:49,167 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:58:49,528 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:58:49,822 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-03-10 17:58:50,265 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-03-10 17:58:51,098 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:58:51,451 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:58:52,148 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-03-10 17:58:52,508 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-03-10 17:58:52,799 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2021-03-10 17:58:53,172 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2021-03-10 17:58:53,482 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 17:58:53,872 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-03-10 17:58:54,184 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-10 17:58:54,563 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-03-10 17:58:54,869 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:58:55,220 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:58:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:55,243 INFO L93 Difference]: Finished difference Result 8422 states and 21417 transitions. [2021-03-10 17:58:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:58:55,245 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:58:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:55,250 INFO L225 Difference]: With dead ends: 8422 [2021-03-10 17:58:55,250 INFO L226 Difference]: Without dead ends: 8422 [2021-03-10 17:58:55,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 7491.5ms TimeCoverageRelationStatistics Valid=783, Invalid=1767, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 17:58:55,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8422 states. [2021-03-10 17:58:55,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8422 to 2595. [2021-03-10 17:58:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2593 states have (on average 2.665638256845353) internal successors, (6912), 2594 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:55,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 6912 transitions. [2021-03-10 17:58:55,312 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 6912 transitions. Word has length 88 [2021-03-10 17:58:55,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:55,312 INFO L480 AbstractCegarLoop]: Abstraction has 2595 states and 6912 transitions. [2021-03-10 17:58:55,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 6912 transitions. [2021-03-10 17:58:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:58:55,314 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:55,315 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:55,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-10 17:58:55,315 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:55,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:55,315 INFO L82 PathProgramCache]: Analyzing trace with hash -2130131865, now seen corresponding path program 99 times [2021-03-10 17:58:55,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:55,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808043338] [2021-03-10 17:58:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:56,265 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 17:58:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:56,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808043338] [2021-03-10 17:58:56,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:56,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:58:56,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631178169] [2021-03-10 17:58:56,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:58:56,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:56,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:58:56,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:58:56,512 INFO L87 Difference]: Start difference. First operand 2595 states and 6912 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:57,461 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:58:57,668 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:58:57,952 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:58:58,220 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:58:58,595 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:58:58,964 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:58:59,357 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:58:59,657 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:59:00,044 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2021-03-10 17:59:00,984 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:59:01,295 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:59:01,705 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:59:02,490 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:59:02,817 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-03-10 17:59:03,118 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:59:03,456 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-03-10 17:59:03,774 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:59:04,151 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2021-03-10 17:59:04,473 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:59:04,796 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:59:05,118 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:59:05,461 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-03-10 17:59:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:05,484 INFO L93 Difference]: Finished difference Result 8209 states and 20879 transitions. [2021-03-10 17:59:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:59:05,486 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:59:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:05,492 INFO L225 Difference]: With dead ends: 8209 [2021-03-10 17:59:05,492 INFO L226 Difference]: Without dead ends: 8209 [2021-03-10 17:59:05,492 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 7795.1ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:59:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8209 states. [2021-03-10 17:59:05,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8209 to 2584. [2021-03-10 17:59:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2582 states have (on average 2.664213787761425) internal successors, (6879), 2583 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 6879 transitions. [2021-03-10 17:59:05,537 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 6879 transitions. Word has length 88 [2021-03-10 17:59:05,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:05,537 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 6879 transitions. [2021-03-10 17:59:05,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 6879 transitions. [2021-03-10 17:59:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:59:05,539 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:05,539 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:05,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-10 17:59:05,539 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:05,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1713579831, now seen corresponding path program 100 times [2021-03-10 17:59:05,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:05,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813220101] [2021-03-10 17:59:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:06,429 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 17:59:06,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:06,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813220101] [2021-03-10 17:59:06,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:06,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:59:06,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536409293] [2021-03-10 17:59:06,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:59:06,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:06,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:59:06,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:59:06,679 INFO L87 Difference]: Start difference. First operand 2584 states and 6879 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:07,670 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:59:07,888 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:59:08,173 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:59:08,440 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:59:08,812 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:59:09,173 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:59:09,552 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:59:10,302 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:59:10,610 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:59:10,942 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:59:11,368 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2021-03-10 17:59:12,184 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:59:12,499 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:59:12,823 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 17:59:13,106 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:59:13,406 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 17:59:13,728 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 17:59:13,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:13,742 INFO L93 Difference]: Finished difference Result 7649 states and 19489 transitions. [2021-03-10 17:59:13,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:59:13,744 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:59:13,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:13,749 INFO L225 Difference]: With dead ends: 7649 [2021-03-10 17:59:13,749 INFO L226 Difference]: Without dead ends: 7649 [2021-03-10 17:59:13,749 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 6007.1ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:59:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7649 states. [2021-03-10 17:59:13,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7649 to 2573. [2021-03-10 17:59:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2571 states have (on average 2.662777129521587) internal successors, (6846), 2572 states have internal predecessors, (6846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6846 transitions. [2021-03-10 17:59:13,789 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6846 transitions. Word has length 88 [2021-03-10 17:59:13,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:13,789 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 6846 transitions. [2021-03-10 17:59:13,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:13,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6846 transitions. [2021-03-10 17:59:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:59:13,791 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:13,791 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:13,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-10 17:59:13,791 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:13,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:13,791 INFO L82 PathProgramCache]: Analyzing trace with hash -2137696803, now seen corresponding path program 101 times [2021-03-10 17:59:13,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:13,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949474607] [2021-03-10 17:59:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:14,672 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 17:59:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:14,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949474607] [2021-03-10 17:59:14,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:14,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:59:14,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522162710] [2021-03-10 17:59:14,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:59:14,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:14,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:59:14,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:59:14,928 INFO L87 Difference]: Start difference. First operand 2573 states and 6846 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:15,911 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:59:16,129 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:59:16,399 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:59:16,660 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:59:17,013 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:59:17,743 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:59:18,047 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:59:18,379 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 17:59:18,703 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 17:59:19,130 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:59:19,818 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:59:20,114 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:59:20,412 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:59:20,715 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:59:20,967 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:59:21,253 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:59:21,559 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:59:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:21,579 INFO L93 Difference]: Finished difference Result 7044 states and 17865 transitions. [2021-03-10 17:59:21,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:59:21,581 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:59:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:21,587 INFO L225 Difference]: With dead ends: 7044 [2021-03-10 17:59:21,588 INFO L226 Difference]: Without dead ends: 7044 [2021-03-10 17:59:21,588 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 5828.8ms TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:59:21,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2021-03-10 17:59:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 2575. [2021-03-10 17:59:21,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2573 states have (on average 2.6626506024096384) internal successors, (6851), 2574 states have internal predecessors, (6851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:21,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 6851 transitions. [2021-03-10 17:59:21,627 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 6851 transitions. Word has length 88 [2021-03-10 17:59:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:21,627 INFO L480 AbstractCegarLoop]: Abstraction has 2575 states and 6851 transitions. [2021-03-10 17:59:21,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:21,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 6851 transitions. [2021-03-10 17:59:21,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:59:21,629 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:21,629 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:21,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-10 17:59:21,629 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:21,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:21,630 INFO L82 PathProgramCache]: Analyzing trace with hash -813418969, now seen corresponding path program 102 times [2021-03-10 17:59:21,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:21,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588658904] [2021-03-10 17:59:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:22,517 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 17:59:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588658904] [2021-03-10 17:59:22,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:22,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:59:22,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701126647] [2021-03-10 17:59:22,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:59:22,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:22,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:59:22,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:59:22,778 INFO L87 Difference]: Start difference. First operand 2575 states and 6851 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:23,806 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:59:24,018 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:59:24,315 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:59:24,596 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:59:24,985 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-03-10 17:59:25,789 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:59:26,103 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 17:59:26,459 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 17:59:26,759 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 17:59:27,181 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 17:59:27,907 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:59:28,212 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:59:28,500 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:59:28,796 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:59:29,062 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 17:59:29,353 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:59:29,676 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:59:29,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:29,697 INFO L93 Difference]: Finished difference Result 6949 states and 17674 transitions. [2021-03-10 17:59:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:59:29,699 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:59:29,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:29,704 INFO L225 Difference]: With dead ends: 6949 [2021-03-10 17:59:29,704 INFO L226 Difference]: Without dead ends: 6949 [2021-03-10 17:59:29,704 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 5840.6ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 17:59:29,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2021-03-10 17:59:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 2562. [2021-03-10 17:59:29,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2562 states, 2560 states have (on average 2.661328125) internal successors, (6813), 2561 states have internal predecessors, (6813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 6813 transitions. [2021-03-10 17:59:29,742 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 6813 transitions. Word has length 88 [2021-03-10 17:59:29,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:29,742 INFO L480 AbstractCegarLoop]: Abstraction has 2562 states and 6813 transitions. [2021-03-10 17:59:29,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 6813 transitions. [2021-03-10 17:59:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:59:29,744 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:29,744 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:29,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-10 17:59:29,745 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:29,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:29,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1714755943, now seen corresponding path program 103 times [2021-03-10 17:59:29,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:29,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580064785] [2021-03-10 17:59:29,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:30,644 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 17:59:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:30,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580064785] [2021-03-10 17:59:30,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:30,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:59:30,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291877324] [2021-03-10 17:59:30,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:59:30,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:30,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:59:30,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:59:30,974 INFO L87 Difference]: Start difference. First operand 2562 states and 6813 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:31,911 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:59:32,104 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:59:32,381 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:59:32,658 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:59:32,954 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:59:33,298 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2021-03-10 17:59:33,649 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:59:34,022 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:59:34,317 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-03-10 17:59:34,777 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-03-10 17:59:35,447 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2021-03-10 17:59:35,825 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2021-03-10 17:59:36,212 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2021-03-10 17:59:36,855 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-03-10 17:59:37,248 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:59:37,528 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-03-10 17:59:37,947 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2021-03-10 17:59:38,250 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-03-10 17:59:38,681 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-03-10 17:59:38,980 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 17:59:39,386 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2021-03-10 17:59:39,675 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:59:40,072 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:59:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:40,094 INFO L93 Difference]: Finished difference Result 8299 states and 21044 transitions. [2021-03-10 17:59:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:59:40,097 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:59:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:40,103 INFO L225 Difference]: With dead ends: 8299 [2021-03-10 17:59:40,103 INFO L226 Difference]: Without dead ends: 8299 [2021-03-10 17:59:40,103 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 8409.2ms TimeCoverageRelationStatistics Valid=842, Invalid=1914, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:59:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8299 states. [2021-03-10 17:59:40,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8299 to 2606. [2021-03-10 17:59:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2604 states have (on average 2.6670506912442398) internal successors, (6945), 2605 states have internal predecessors, (6945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 6945 transitions. [2021-03-10 17:59:40,145 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 6945 transitions. Word has length 88 [2021-03-10 17:59:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:40,145 INFO L480 AbstractCegarLoop]: Abstraction has 2606 states and 6945 transitions. [2021-03-10 17:59:40,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 6945 transitions. [2021-03-10 17:59:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:59:40,147 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:40,147 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:40,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-10 17:59:40,147 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:40,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:40,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1938132953, now seen corresponding path program 104 times [2021-03-10 17:59:40,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:40,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201489347] [2021-03-10 17:59:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:41,153 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2021-03-10 17:59:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:41,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201489347] [2021-03-10 17:59:41,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:41,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:59:41,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877130926] [2021-03-10 17:59:41,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:59:41,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:41,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:59:41,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:59:41,403 INFO L87 Difference]: Start difference. First operand 2606 states and 6945 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:42,148 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 17:59:42,435 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:59:42,671 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:59:43,000 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:59:43,275 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:59:43,640 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:59:44,032 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:59:44,428 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:59:44,861 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2021-03-10 17:59:45,166 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:59:45,604 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2021-03-10 17:59:46,481 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:59:46,912 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:59:47,233 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:59:47,689 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:59:48,546 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:59:48,898 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-03-10 17:59:49,164 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 17:59:49,533 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-03-10 17:59:49,848 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 17:59:50,228 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2021-03-10 17:59:50,557 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 17:59:50,912 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-03-10 17:59:51,216 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 17:59:51,557 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-03-10 17:59:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:51,579 INFO L93 Difference]: Finished difference Result 8086 states and 20506 transitions. [2021-03-10 17:59:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:59:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 17:59:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:51,586 INFO L225 Difference]: With dead ends: 8086 [2021-03-10 17:59:51,586 INFO L226 Difference]: Without dead ends: 8086 [2021-03-10 17:59:51,586 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 8585.5ms TimeCoverageRelationStatistics Valid=835, Invalid=2027, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:59:51,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8086 states. [2021-03-10 17:59:51,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8086 to 2595. [2021-03-10 17:59:51,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2593 states have (on average 2.665638256845353) internal successors, (6912), 2594 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:51,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 6912 transitions. [2021-03-10 17:59:51,628 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 6912 transitions. Word has length 88 [2021-03-10 17:59:51,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:51,628 INFO L480 AbstractCegarLoop]: Abstraction has 2595 states and 6912 transitions. [2021-03-10 17:59:51,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 6912 transitions. [2021-03-10 17:59:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 17:59:51,630 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:51,631 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:51,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-10 17:59:51,631 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:51,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:51,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1940282309, now seen corresponding path program 105 times [2021-03-10 17:59:51,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:51,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777977360] [2021-03-10 17:59:51,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:52,571 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2021-03-10 17:59:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:52,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777977360] [2021-03-10 17:59:52,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:52,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 17:59:52,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491777451] [2021-03-10 17:59:52,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 17:59:52,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:52,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 17:59:52,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 17:59:52,835 INFO L87 Difference]: Start difference. First operand 2595 states and 6912 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:53,601 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 17:59:53,869 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 17:59:54,098 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 17:59:54,411 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 17:59:54,702 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 17:59:55,011 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 17:59:55,371 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 17:59:55,748 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 17:59:56,159 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 17:59:57,026 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 17:59:57,335 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 17:59:57,671 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 17:59:58,008 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 17:59:58,472 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 17:59:59,368 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 17:59:59,683 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 17:59:59,988 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 18:00:00,328 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:00:00,626 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 18:00:00,976 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 18:00:01,304 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 18:00:01,616 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 18:00:01,958 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-03-10 18:00:02,300 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 18:00:02,630 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 18:00:02,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:02,655 INFO L93 Difference]: Finished difference Result 8468 states and 21338 transitions. [2021-03-10 18:00:02,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 18:00:02,657 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:02,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:02,664 INFO L225 Difference]: With dead ends: 8468 [2021-03-10 18:00:02,664 INFO L226 Difference]: Without dead ends: 8468 [2021-03-10 18:00:02,664 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 8395.1ms TimeCoverageRelationStatistics Valid=819, Invalid=2043, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:00:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8468 states. [2021-03-10 18:00:02,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 2584. [2021-03-10 18:00:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2582 states have (on average 2.664213787761425) internal successors, (6879), 2583 states have internal predecessors, (6879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 6879 transitions. [2021-03-10 18:00:02,709 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 6879 transitions. Word has length 88 [2021-03-10 18:00:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:02,710 INFO L480 AbstractCegarLoop]: Abstraction has 2584 states and 6879 transitions. [2021-03-10 18:00:02,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 6879 transitions. [2021-03-10 18:00:02,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:02,712 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:02,712 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:02,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-10 18:00:02,712 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:02,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:02,712 INFO L82 PathProgramCache]: Analyzing trace with hash 2040594393, now seen corresponding path program 106 times [2021-03-10 18:00:02,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:02,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817238487] [2021-03-10 18:00:02,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:03,650 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2021-03-10 18:00:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:03,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817238487] [2021-03-10 18:00:03,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:03,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:00:03,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065185050] [2021-03-10 18:00:03,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:00:03,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:03,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:00:03,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:00:03,936 INFO L87 Difference]: Start difference. First operand 2584 states and 6879 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:04,647 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:00:04,906 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:00:05,133 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:00:05,449 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 18:00:05,736 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 18:00:06,054 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2021-03-10 18:00:06,415 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 18:00:07,233 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-10 18:00:07,533 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-10 18:00:07,900 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-10 18:00:08,250 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 18:00:08,600 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2021-03-10 18:00:09,060 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-03-10 18:00:09,823 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-03-10 18:00:10,141 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 18:00:10,455 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-03-10 18:00:10,735 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-10 18:00:11,035 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-03-10 18:00:11,359 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-03-10 18:00:11,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:11,375 INFO L93 Difference]: Finished difference Result 7449 states and 18906 transitions. [2021-03-10 18:00:11,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 18:00:11,377 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:11,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:11,384 INFO L225 Difference]: With dead ends: 7449 [2021-03-10 18:00:11,384 INFO L226 Difference]: Without dead ends: 7449 [2021-03-10 18:00:11,385 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6563.5ms TimeCoverageRelationStatistics Valid=611, Invalid=1645, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 18:00:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7449 states. [2021-03-10 18:00:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7449 to 2562. [2021-03-10 18:00:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2562 states, 2560 states have (on average 2.661328125) internal successors, (6813), 2561 states have internal predecessors, (6813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:11,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 6813 transitions. [2021-03-10 18:00:11,428 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 6813 transitions. Word has length 88 [2021-03-10 18:00:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:11,428 INFO L480 AbstractCegarLoop]: Abstraction has 2562 states and 6813 transitions. [2021-03-10 18:00:11,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:11,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 6813 transitions. [2021-03-10 18:00:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:11,430 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:11,430 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:11,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-10 18:00:11,430 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:11,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1010396671, now seen corresponding path program 107 times [2021-03-10 18:00:11,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:11,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988665678] [2021-03-10 18:00:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:12,499 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:00:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:12,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988665678] [2021-03-10 18:00:12,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:12,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:00:12,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024679979] [2021-03-10 18:00:12,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:00:12,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:12,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:00:12,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:00:12,769 INFO L87 Difference]: Start difference. First operand 2562 states and 6813 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:13,548 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:00:13,826 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:00:14,056 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:00:14,372 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 18:00:14,668 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 18:00:15,403 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:00:15,702 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:00:16,034 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:00:16,397 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:00:16,747 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 18:00:17,217 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 18:00:17,936 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 18:00:18,247 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 18:00:18,534 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 18:00:18,837 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 18:00:19,053 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:00:19,346 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 18:00:19,661 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 18:00:19,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:19,685 INFO L93 Difference]: Finished difference Result 6570 states and 16606 transitions. [2021-03-10 18:00:19,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:00:19,687 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:19,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:19,693 INFO L225 Difference]: With dead ends: 6570 [2021-03-10 18:00:19,693 INFO L226 Difference]: Without dead ends: 6570 [2021-03-10 18:00:19,693 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 6262.7ms TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:00:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2021-03-10 18:00:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 2568. [2021-03-10 18:00:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2566 states have (on average 2.660950896336711) internal successors, (6828), 2567 states have internal predecessors, (6828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:19,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 6828 transitions. [2021-03-10 18:00:19,733 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 6828 transitions. Word has length 88 [2021-03-10 18:00:19,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:19,733 INFO L480 AbstractCegarLoop]: Abstraction has 2568 states and 6828 transitions. [2021-03-10 18:00:19,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:19,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 6828 transitions. [2021-03-10 18:00:19,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:19,736 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:19,736 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:19,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-10 18:00:19,736 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:19,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:19,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1960292791, now seen corresponding path program 108 times [2021-03-10 18:00:19,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:19,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513830120] [2021-03-10 18:00:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:20,741 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 18:00:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:21,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513830120] [2021-03-10 18:00:21,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:21,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:00:21,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858062755] [2021-03-10 18:00:21,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:00:21,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:21,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:00:21,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:00:21,055 INFO L87 Difference]: Start difference. First operand 2568 states and 6828 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:21,686 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:00:21,843 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:00:22,118 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:00:22,344 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:00:22,655 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 18:00:22,951 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 18:00:23,748 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:00:24,058 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:00:24,401 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 18:00:24,789 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 18:00:25,119 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 18:00:25,538 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 18:00:26,389 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 18:00:26,723 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 18:00:27,023 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 18:00:27,340 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 18:00:27,593 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:00:27,878 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 18:00:28,175 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 18:00:28,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:28,196 INFO L93 Difference]: Finished difference Result 6684 states and 16841 transitions. [2021-03-10 18:00:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:00:28,197 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:28,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:28,202 INFO L225 Difference]: With dead ends: 6684 [2021-03-10 18:00:28,202 INFO L226 Difference]: Without dead ends: 6684 [2021-03-10 18:00:28,203 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 6251.3ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:00:28,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6684 states. [2021-03-10 18:00:28,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6684 to 2566. [2021-03-10 18:00:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 2.6610764430577225) internal successors, (6823), 2565 states have internal predecessors, (6823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 6823 transitions. [2021-03-10 18:00:28,239 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 6823 transitions. Word has length 88 [2021-03-10 18:00:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:28,239 INFO L480 AbstractCegarLoop]: Abstraction has 2566 states and 6823 transitions. [2021-03-10 18:00:28,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:28,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 6823 transitions. [2021-03-10 18:00:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:28,241 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:28,241 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:28,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-10 18:00:28,242 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:28,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:28,242 INFO L82 PathProgramCache]: Analyzing trace with hash -119189957, now seen corresponding path program 109 times [2021-03-10 18:00:28,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:28,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904423264] [2021-03-10 18:00:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:29,172 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 18:00:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:29,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904423264] [2021-03-10 18:00:29,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:29,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:00:29,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151684926] [2021-03-10 18:00:29,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:00:29,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:29,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:00:29,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:00:29,480 INFO L87 Difference]: Start difference. First operand 2566 states and 6823 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:30,339 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:00:30,608 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:00:30,846 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:00:31,194 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-03-10 18:00:31,504 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-03-10 18:00:32,229 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:00:32,533 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 18:00:32,872 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 18:00:33,206 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 18:00:33,620 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 18:00:33,962 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 18:00:34,435 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 18:00:35,181 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 18:00:35,491 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-10 18:00:35,775 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 18:00:36,094 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-10 18:00:36,339 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:00:36,626 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-10 18:00:36,942 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-10 18:00:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:36,965 INFO L93 Difference]: Finished difference Result 6482 states and 16434 transitions. [2021-03-10 18:00:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 18:00:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:36,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:36,972 INFO L225 Difference]: With dead ends: 6482 [2021-03-10 18:00:36,972 INFO L226 Difference]: Without dead ends: 6482 [2021-03-10 18:00:36,972 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 6563.1ms TimeCoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 18:00:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6482 states. [2021-03-10 18:00:37,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6482 to 2529. [2021-03-10 18:00:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2527 states have (on average 2.6569054214483576) internal successors, (6714), 2528 states have internal predecessors, (6714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 6714 transitions. [2021-03-10 18:00:37,010 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 6714 transitions. Word has length 88 [2021-03-10 18:00:37,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:37,010 INFO L480 AbstractCegarLoop]: Abstraction has 2529 states and 6714 transitions. [2021-03-10 18:00:37,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 6714 transitions. [2021-03-10 18:00:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:37,012 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:37,012 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:37,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-10 18:00:37,012 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:37,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:37,012 INFO L82 PathProgramCache]: Analyzing trace with hash 175203855, now seen corresponding path program 110 times [2021-03-10 18:00:37,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:37,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232196674] [2021-03-10 18:00:37,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:38,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232196674] [2021-03-10 18:00:38,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:38,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:00:38,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768364761] [2021-03-10 18:00:38,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:00:38,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:38,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:00:38,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:00:38,319 INFO L87 Difference]: Start difference. First operand 2529 states and 6714 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:39,195 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:00:39,537 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2021-03-10 18:00:39,820 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-03-10 18:00:40,730 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-03-10 18:00:41,028 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-03-10 18:00:41,352 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-10 18:00:41,747 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-10 18:00:42,233 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-03-10 18:00:42,655 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 18:00:43,097 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-03-10 18:00:43,805 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-03-10 18:00:44,077 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-03-10 18:00:44,334 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 18:00:44,604 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-03-10 18:00:44,785 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-03-10 18:00:45,048 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-03-10 18:00:45,333 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-03-10 18:00:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:45,351 INFO L93 Difference]: Finished difference Result 4923 states and 12447 transitions. [2021-03-10 18:00:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 18:00:45,353 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:45,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:45,357 INFO L225 Difference]: With dead ends: 4923 [2021-03-10 18:00:45,357 INFO L226 Difference]: Without dead ends: 4923 [2021-03-10 18:00:45,358 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 5795.1ms TimeCoverageRelationStatistics Valid=497, Invalid=1573, Unknown=0, NotChecked=0, Total=2070 [2021-03-10 18:00:45,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2021-03-10 18:00:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 2535. [2021-03-10 18:00:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2533 states have (on average 2.656533754441374) internal successors, (6729), 2534 states have internal predecessors, (6729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 6729 transitions. [2021-03-10 18:00:45,393 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 6729 transitions. Word has length 88 [2021-03-10 18:00:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:45,393 INFO L480 AbstractCegarLoop]: Abstraction has 2535 states and 6729 transitions. [2021-03-10 18:00:45,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 6729 transitions. [2021-03-10 18:00:45,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:45,396 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:45,396 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:45,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-10 18:00:45,396 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:45,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:45,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1640163013, now seen corresponding path program 111 times [2021-03-10 18:00:45,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:45,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296514504] [2021-03-10 18:00:45,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:46,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296514504] [2021-03-10 18:00:46,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:46,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 18:00:46,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017641346] [2021-03-10 18:00:46,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 18:00:46,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:46,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 18:00:46,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-03-10 18:00:46,269 INFO L87 Difference]: Start difference. First operand 2535 states and 6729 transitions. Second operand has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:47,515 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-03-10 18:00:47,738 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-03-10 18:00:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:48,775 INFO L93 Difference]: Finished difference Result 3281 states and 8229 transitions. [2021-03-10 18:00:48,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 18:00:48,777 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:48,780 INFO L225 Difference]: With dead ends: 3281 [2021-03-10 18:00:48,780 INFO L226 Difference]: Without dead ends: 3281 [2021-03-10 18:00:48,781 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2294.3ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 18:00:48,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2021-03-10 18:00:48,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 2579. [2021-03-10 18:00:48,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2579 states, 2577 states have (on average 2.6523088863019013) internal successors, (6835), 2578 states have internal predecessors, (6835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 6835 transitions. [2021-03-10 18:00:48,810 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 6835 transitions. Word has length 88 [2021-03-10 18:00:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:48,810 INFO L480 AbstractCegarLoop]: Abstraction has 2579 states and 6835 transitions. [2021-03-10 18:00:48,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 4.631578947368421) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 6835 transitions. [2021-03-10 18:00:48,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:48,812 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:48,812 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:48,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-10 18:00:48,813 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:48,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:48,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1103327261, now seen corresponding path program 112 times [2021-03-10 18:00:48,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:48,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124138292] [2021-03-10 18:00:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:49,856 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:00:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:50,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124138292] [2021-03-10 18:00:50,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:50,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:00:50,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882439119] [2021-03-10 18:00:50,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:00:50,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:50,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:00:50,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:00:50,196 INFO L87 Difference]: Start difference. First operand 2579 states and 6835 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:51,296 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:00:51,540 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:00:52,223 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:00:52,492 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 18:00:52,803 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:00:53,159 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:00:53,514 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:00:53,896 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:00:54,267 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2021-03-10 18:00:54,746 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 18:00:55,437 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:00:55,706 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:00:55,948 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:00:56,213 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:00:56,421 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:00:56,671 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:00:56,930 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:00:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:56,947 INFO L93 Difference]: Finished difference Result 5272 states and 13175 transitions. [2021-03-10 18:00:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:00:56,949 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:00:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:56,953 INFO L225 Difference]: With dead ends: 5272 [2021-03-10 18:00:56,953 INFO L226 Difference]: Without dead ends: 5272 [2021-03-10 18:00:56,953 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6095.7ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:00:56,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2021-03-10 18:00:56,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 2585. [2021-03-10 18:00:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2583 states have (on average 2.6519550909794813) internal successors, (6850), 2584 states have internal predecessors, (6850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:56,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 6850 transitions. [2021-03-10 18:00:56,987 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 6850 transitions. Word has length 88 [2021-03-10 18:00:56,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:56,987 INFO L480 AbstractCegarLoop]: Abstraction has 2585 states and 6850 transitions. [2021-03-10 18:00:56,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 6850 transitions. [2021-03-10 18:00:56,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:00:56,990 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:56,990 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:56,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-10 18:00:56,990 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:56,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:56,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1867362201, now seen corresponding path program 113 times [2021-03-10 18:00:56,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:56,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146932178] [2021-03-10 18:00:56,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:58,047 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 18:00:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:58,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146932178] [2021-03-10 18:00:58,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:58,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:00:58,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191551958] [2021-03-10 18:00:58,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:00:58,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:58,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:00:58,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:00:58,393 INFO L87 Difference]: Start difference. First operand 2585 states and 6850 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:59,294 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:00:59,597 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:00:59,839 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:01:00,582 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:00,866 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 18:01:01,168 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:01:01,562 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:01:01,957 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 18:01:02,366 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 18:01:02,701 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 18:01:03,167 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 18:01:03,888 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:01:04,174 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:01:04,423 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:01:04,683 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:01:04,894 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:05,154 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:01:05,424 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:05,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:05,441 INFO L93 Difference]: Finished difference Result 5386 states and 13410 transitions. [2021-03-10 18:01:05,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:01:05,443 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:01:05,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:05,447 INFO L225 Difference]: With dead ends: 5386 [2021-03-10 18:01:05,448 INFO L226 Difference]: Without dead ends: 5386 [2021-03-10 18:01:05,448 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6138.1ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:01:05,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5386 states. [2021-03-10 18:01:05,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5386 to 2583. [2021-03-10 18:01:05,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2581 states have (on average 2.652072839984502) internal successors, (6845), 2582 states have internal predecessors, (6845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 6845 transitions. [2021-03-10 18:01:05,485 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 6845 transitions. Word has length 88 [2021-03-10 18:01:05,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:05,485 INFO L480 AbstractCegarLoop]: Abstraction has 2583 states and 6845 transitions. [2021-03-10 18:01:05,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:05,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 6845 transitions. [2021-03-10 18:01:05,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:01:05,488 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:05,488 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:05,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-10 18:01:05,488 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:05,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:05,488 INFO L82 PathProgramCache]: Analyzing trace with hash -26259367, now seen corresponding path program 114 times [2021-03-10 18:01:05,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:05,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388479700] [2021-03-10 18:01:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:06,520 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 18:01:06,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:06,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388479700] [2021-03-10 18:01:06,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:06,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:01:06,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038548127] [2021-03-10 18:01:06,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:01:06,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:06,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:01:06,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:01:06,843 INFO L87 Difference]: Start difference. First operand 2583 states and 6845 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:07,673 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:01:07,955 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:01:08,204 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:01:08,896 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:09,158 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2021-03-10 18:01:09,459 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:01:09,785 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 18:01:10,138 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 18:01:10,484 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 18:01:10,920 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2021-03-10 18:01:11,285 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 18:01:11,825 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 18:01:12,602 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:01:12,880 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:01:13,119 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:01:13,369 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:01:13,575 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:13,826 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:01:14,080 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:14,097 INFO L93 Difference]: Finished difference Result 5329 states and 13298 transitions. [2021-03-10 18:01:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 18:01:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:01:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:14,103 INFO L225 Difference]: With dead ends: 5329 [2021-03-10 18:01:14,103 INFO L226 Difference]: Without dead ends: 5329 [2021-03-10 18:01:14,104 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 6375.3ms TimeCoverageRelationStatistics Valid=566, Invalid=1690, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 18:01:14,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5329 states. [2021-03-10 18:01:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5329 to 2577. [2021-03-10 18:01:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 2575 states have (on average 2.652427184466019) internal successors, (6830), 2576 states have internal predecessors, (6830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:14,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 6830 transitions. [2021-03-10 18:01:14,139 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 6830 transitions. Word has length 88 [2021-03-10 18:01:14,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:14,140 INFO L480 AbstractCegarLoop]: Abstraction has 2577 states and 6830 transitions. [2021-03-10 18:01:14,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:14,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 6830 transitions. [2021-03-10 18:01:14,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:01:14,142 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:14,142 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:14,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-10 18:01:14,142 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:14,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:14,142 INFO L82 PathProgramCache]: Analyzing trace with hash -11921929, now seen corresponding path program 115 times [2021-03-10 18:01:14,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:14,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500896883] [2021-03-10 18:01:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:15,339 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:01:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:15,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500896883] [2021-03-10 18:01:15,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:15,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:01:15,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572413619] [2021-03-10 18:01:15,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:01:15,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:15,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:01:15,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:01:15,682 INFO L87 Difference]: Start difference. First operand 2577 states and 6830 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:16,381 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:01:16,552 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:01:16,804 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:01:17,053 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:01:17,856 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:18,126 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-10 18:01:18,463 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-03-10 18:01:18,798 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 18:01:19,168 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:01:19,530 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:01:19,927 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:01:20,313 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-03-10 18:01:20,802 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2021-03-10 18:01:21,499 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:01:21,750 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:01:22,006 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:01:22,277 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:01:22,512 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:22,762 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:01:22,979 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:22,988 INFO L93 Difference]: Finished difference Result 5065 states and 12766 transitions. [2021-03-10 18:01:22,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 18:01:22,990 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:01:22,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:22,994 INFO L225 Difference]: With dead ends: 5065 [2021-03-10 18:01:22,994 INFO L226 Difference]: Without dead ends: 5065 [2021-03-10 18:01:22,994 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 6630.1ms TimeCoverageRelationStatistics Valid=564, Invalid=1692, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 18:01:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2021-03-10 18:01:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 2601. [2021-03-10 18:01:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 2599 states have (on average 2.651019622931897) internal successors, (6890), 2600 states have internal predecessors, (6890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 6890 transitions. [2021-03-10 18:01:23,029 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 6890 transitions. Word has length 88 [2021-03-10 18:01:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:23,029 INFO L480 AbstractCegarLoop]: Abstraction has 2601 states and 6890 transitions. [2021-03-10 18:01:23,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 6890 transitions. [2021-03-10 18:01:23,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:01:23,031 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:23,031 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:23,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-10 18:01:23,031 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:23,031 INFO L82 PathProgramCache]: Analyzing trace with hash -958684145, now seen corresponding path program 116 times [2021-03-10 18:01:23,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:23,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951717757] [2021-03-10 18:01:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:24,165 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:01:24,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:24,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951717757] [2021-03-10 18:01:24,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:24,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:01:24,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614412217] [2021-03-10 18:01:24,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:01:24,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:24,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:01:24,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:01:24,540 INFO L87 Difference]: Start difference. First operand 2601 states and 6890 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:25,406 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:01:25,683 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:01:25,909 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:01:26,590 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:26,868 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-10 18:01:27,181 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-03-10 18:01:27,520 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:01:27,879 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:01:28,271 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:01:28,646 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-10 18:01:29,128 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 18:01:29,855 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:01:30,124 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:01:30,383 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:01:30,654 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:01:30,877 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:31,147 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:01:31,428 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:31,447 INFO L93 Difference]: Finished difference Result 5360 states and 13361 transitions. [2021-03-10 18:01:31,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:01:31,449 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:01:31,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:31,454 INFO L225 Difference]: With dead ends: 5360 [2021-03-10 18:01:31,455 INFO L226 Difference]: Without dead ends: 5360 [2021-03-10 18:01:31,455 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6373.6ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:01:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2021-03-10 18:01:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 2603. [2021-03-10 18:01:31,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2601 states have (on average 2.6509034986543636) internal successors, (6895), 2602 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 6895 transitions. [2021-03-10 18:01:31,506 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 6895 transitions. Word has length 88 [2021-03-10 18:01:31,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:31,506 INFO L480 AbstractCegarLoop]: Abstraction has 2603 states and 6895 transitions. [2021-03-10 18:01:31,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 6895 transitions. [2021-03-10 18:01:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:01:31,509 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:31,509 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:31,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-10 18:01:31,509 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:31,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:31,509 INFO L82 PathProgramCache]: Analyzing trace with hash 365593689, now seen corresponding path program 117 times [2021-03-10 18:01:31,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:31,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107837598] [2021-03-10 18:01:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:32,570 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 18:01:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:32,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107837598] [2021-03-10 18:01:32,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:32,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:01:32,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793517351] [2021-03-10 18:01:32,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:01:32,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:32,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:01:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:01:32,930 INFO L87 Difference]: Start difference. First operand 2603 states and 6895 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:33,788 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:01:34,085 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:01:34,331 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:01:35,135 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:35,410 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-10 18:01:35,717 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-03-10 18:01:36,099 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:01:36,495 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 18:01:36,926 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2021-03-10 18:01:37,284 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 18:01:37,766 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2021-03-10 18:01:38,504 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:01:38,778 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:01:39,037 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:01:39,307 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:01:39,518 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:39,770 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:01:40,048 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:40,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:40,066 INFO L93 Difference]: Finished difference Result 5181 states and 13006 transitions. [2021-03-10 18:01:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:01:40,068 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:01:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:40,072 INFO L225 Difference]: With dead ends: 5181 [2021-03-10 18:01:40,072 INFO L226 Difference]: Without dead ends: 5181 [2021-03-10 18:01:40,072 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6204.7ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:01:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5181 states. [2021-03-10 18:01:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5181 to 2601. [2021-03-10 18:01:40,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 2599 states have (on average 2.651019622931897) internal successors, (6890), 2600 states have internal predecessors, (6890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:40,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 6890 transitions. [2021-03-10 18:01:40,108 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 6890 transitions. Word has length 88 [2021-03-10 18:01:40,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:40,109 INFO L480 AbstractCegarLoop]: Abstraction has 2601 states and 6890 transitions. [2021-03-10 18:01:40,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:40,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 6890 transitions. [2021-03-10 18:01:40,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:01:40,111 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:40,111 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:40,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-10 18:01:40,111 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:40,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:40,111 INFO L82 PathProgramCache]: Analyzing trace with hash -58554949, now seen corresponding path program 118 times [2021-03-10 18:01:40,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:40,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949969112] [2021-03-10 18:01:40,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:41,232 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:01:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:41,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949969112] [2021-03-10 18:01:41,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:41,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:01:41,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592822635] [2021-03-10 18:01:41,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:01:41,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:41,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:01:41,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:01:41,602 INFO L87 Difference]: Start difference. First operand 2601 states and 6890 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:42,336 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:01:42,519 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:01:42,859 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:01:43,118 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:01:43,983 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:44,260 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-10 18:01:44,583 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:01:44,966 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:01:45,354 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:01:45,759 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:01:46,141 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-03-10 18:01:46,659 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 18:01:47,529 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:01:47,809 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:01:48,063 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:01:48,322 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:01:48,500 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:48,761 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:01:49,052 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:49,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:49,070 INFO L93 Difference]: Finished difference Result 5297 states and 13234 transitions. [2021-03-10 18:01:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:01:49,072 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:01:49,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:49,076 INFO L225 Difference]: With dead ends: 5297 [2021-03-10 18:01:49,076 INFO L226 Difference]: Without dead ends: 5297 [2021-03-10 18:01:49,076 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6375.0ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:01:49,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2021-03-10 18:01:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 2607. [2021-03-10 18:01:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2605 states have (on average 2.650671785028791) internal successors, (6905), 2606 states have internal predecessors, (6905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:49,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 6905 transitions. [2021-03-10 18:01:49,111 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 6905 transitions. Word has length 88 [2021-03-10 18:01:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:49,111 INFO L480 AbstractCegarLoop]: Abstraction has 2607 states and 6905 transitions. [2021-03-10 18:01:49,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 6905 transitions. [2021-03-10 18:01:49,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:01:49,114 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:49,114 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:49,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-10 18:01:49,114 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:49,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:49,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1265722885, now seen corresponding path program 119 times [2021-03-10 18:01:49,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:49,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663487952] [2021-03-10 18:01:49,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:50,237 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 18:01:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:50,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663487952] [2021-03-10 18:01:50,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:50,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:01:50,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618530057] [2021-03-10 18:01:50,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:01:50,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:50,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:01:50,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:01:50,606 INFO L87 Difference]: Start difference. First operand 2607 states and 6905 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:51,346 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:01:51,519 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:01:51,832 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:01:52,088 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:01:52,932 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:53,226 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-10 18:01:53,564 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:01:53,970 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2021-03-10 18:01:54,380 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 18:01:54,818 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2021-03-10 18:01:55,176 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 18:01:55,674 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2021-03-10 18:01:56,560 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:01:56,846 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:01:57,113 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:01:57,387 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:01:57,608 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:01:57,872 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:01:58,151 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:58,169 INFO L93 Difference]: Finished difference Result 5433 states and 13515 transitions. [2021-03-10 18:01:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 18:01:58,172 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:01:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:58,176 INFO L225 Difference]: With dead ends: 5433 [2021-03-10 18:01:58,176 INFO L226 Difference]: Without dead ends: 5433 [2021-03-10 18:01:58,177 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 6442.7ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-03-10 18:01:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2021-03-10 18:01:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 2605. [2021-03-10 18:01:58,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2603 states have (on average 2.650787552823665) internal successors, (6900), 2604 states have internal predecessors, (6900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:58,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 6900 transitions. [2021-03-10 18:01:58,227 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 6900 transitions. Word has length 88 [2021-03-10 18:01:58,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:58,227 INFO L480 AbstractCegarLoop]: Abstraction has 2605 states and 6900 transitions. [2021-03-10 18:01:58,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 6900 transitions. [2021-03-10 18:01:58,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:01:58,229 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:58,229 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:58,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-10 18:01:58,230 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:58,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1188141577, now seen corresponding path program 120 times [2021-03-10 18:01:58,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:58,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88061658] [2021-03-10 18:01:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:59,280 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-03-10 18:01:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:59,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88061658] [2021-03-10 18:01:59,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:59,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:01:59,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454055909] [2021-03-10 18:01:59,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:01:59,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:59,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:01:59,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:01:59,649 INFO L87 Difference]: Start difference. First operand 2605 states and 6900 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:00,685 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:02:01,013 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:02:01,296 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:02:02,190 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:02:02,439 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-03-10 18:02:02,774 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:02:03,140 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-10 18:02:03,523 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2021-03-10 18:02:03,923 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-10 18:02:04,364 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2021-03-10 18:02:04,710 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-03-10 18:02:05,225 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2021-03-10 18:02:05,965 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-03-10 18:02:06,260 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-03-10 18:02:06,507 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-03-10 18:02:06,769 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-10 18:02:06,981 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-03-10 18:02:07,239 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-10 18:02:07,526 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:02:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:07,544 INFO L93 Difference]: Finished difference Result 5116 states and 12874 transitions. [2021-03-10 18:02:07,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 18:02:07,546 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:02:07,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:07,550 INFO L225 Difference]: With dead ends: 5116 [2021-03-10 18:02:07,550 INFO L226 Difference]: Without dead ends: 5116 [2021-03-10 18:02:07,550 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 6615.1ms TimeCoverageRelationStatistics Valid=566, Invalid=1690, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 18:02:07,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5116 states. [2021-03-10 18:02:07,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5116 to 2601. [2021-03-10 18:02:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 2599 states have (on average 2.651019622931897) internal successors, (6890), 2600 states have internal predecessors, (6890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 6890 transitions. [2021-03-10 18:02:07,585 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 6890 transitions. Word has length 88 [2021-03-10 18:02:07,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:07,585 INFO L480 AbstractCegarLoop]: Abstraction has 2601 states and 6890 transitions. [2021-03-10 18:02:07,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:07,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 6890 transitions. [2021-03-10 18:02:07,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:02:07,587 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:07,587 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:07,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-10 18:02:07,587 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:07,587 INFO L82 PathProgramCache]: Analyzing trace with hash -821379913, now seen corresponding path program 121 times [2021-03-10 18:02:07,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:07,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417902279] [2021-03-10 18:02:07,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:08,753 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:02:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:09,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417902279] [2021-03-10 18:02:09,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:09,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:02:09,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659717126] [2021-03-10 18:02:09,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:02:09,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:09,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:02:09,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:02:09,145 INFO L87 Difference]: Start difference. First operand 2601 states and 6890 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:09,943 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:02:10,127 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:02:10,461 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:02:10,723 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:02:11,041 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2021-03-10 18:02:11,451 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 18:02:11,832 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-10 18:02:12,256 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 18:02:12,696 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 18:02:13,142 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 18:02:13,528 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 18:02:14,079 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2021-03-10 18:02:15,094 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:15,501 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:15,988 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 76 [2021-03-10 18:02:16,891 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-03-10 18:02:17,339 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2021-03-10 18:02:17,683 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 18:02:18,131 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2021-03-10 18:02:18,492 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:18,948 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2021-03-10 18:02:19,298 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 18:02:19,748 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2021-03-10 18:02:20,108 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:20,544 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2021-03-10 18:02:20,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:20,572 INFO L93 Difference]: Finished difference Result 5631 states and 14349 transitions. [2021-03-10 18:02:20,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 18:02:20,575 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:02:20,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:20,579 INFO L225 Difference]: With dead ends: 5631 [2021-03-10 18:02:20,579 INFO L226 Difference]: Without dead ends: 5631 [2021-03-10 18:02:20,579 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 9917.1ms TimeCoverageRelationStatistics Valid=833, Invalid=1923, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:02:20,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2021-03-10 18:02:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 2755. [2021-03-10 18:02:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2753 states have (on average 2.670541227751544) internal successors, (7352), 2754 states have internal predecessors, (7352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7352 transitions. [2021-03-10 18:02:20,615 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7352 transitions. Word has length 88 [2021-03-10 18:02:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:20,615 INFO L480 AbstractCegarLoop]: Abstraction has 2755 states and 7352 transitions. [2021-03-10 18:02:20,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7352 transitions. [2021-03-10 18:02:20,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:02:20,617 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:20,618 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:20,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-10 18:02:20,618 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:20,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:20,618 INFO L82 PathProgramCache]: Analyzing trace with hash -548469257, now seen corresponding path program 122 times [2021-03-10 18:02:20,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:20,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074992699] [2021-03-10 18:02:20,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:21,882 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:02:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:22,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074992699] [2021-03-10 18:02:22,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:22,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:02:22,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650567204] [2021-03-10 18:02:22,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:02:22,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:22,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:02:22,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:02:22,208 INFO L87 Difference]: Start difference. First operand 2755 states and 7352 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:22,962 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:02:23,152 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:02:23,475 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:02:23,742 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:02:24,062 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2021-03-10 18:02:24,466 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 18:02:24,842 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-10 18:02:25,252 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 18:02:25,666 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 18:02:26,100 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 18:02:26,475 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 18:02:26,964 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-03-10 18:02:27,910 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:28,343 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:28,723 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-03-10 18:02:29,239 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2021-03-10 18:02:30,192 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-03-10 18:02:30,587 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2021-03-10 18:02:30,938 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 18:02:31,360 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-03-10 18:02:31,720 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:32,139 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2021-03-10 18:02:32,498 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 18:02:32,883 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2021-03-10 18:02:33,240 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:33,635 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2021-03-10 18:02:33,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:33,661 INFO L93 Difference]: Finished difference Result 5418 states and 13811 transitions. [2021-03-10 18:02:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 18:02:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:02:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:33,667 INFO L225 Difference]: With dead ends: 5418 [2021-03-10 18:02:33,667 INFO L226 Difference]: Without dead ends: 5418 [2021-03-10 18:02:33,667 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 10120.9ms TimeCoverageRelationStatistics Valid=833, Invalid=2029, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:02:33,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2021-03-10 18:02:33,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 2744. [2021-03-10 18:02:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2742 states have (on average 2.6692195477753464) internal successors, (7319), 2743 states have internal predecessors, (7319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:33,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 7319 transitions. [2021-03-10 18:02:33,702 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 7319 transitions. Word has length 88 [2021-03-10 18:02:33,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:33,702 INFO L480 AbstractCegarLoop]: Abstraction has 2744 states and 7319 transitions. [2021-03-10 18:02:33,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:33,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 7319 transitions. [2021-03-10 18:02:33,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:02:33,705 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:33,705 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:33,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-10 18:02:33,705 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:33,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash 315883835, now seen corresponding path program 123 times [2021-03-10 18:02:33,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:33,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298505724] [2021-03-10 18:02:33,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:35,001 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:02:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:35,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298505724] [2021-03-10 18:02:35,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:35,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:02:35,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981240822] [2021-03-10 18:02:35,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:02:35,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:35,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:02:35,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:02:35,333 INFO L87 Difference]: Start difference. First operand 2744 states and 7319 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:36,078 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:02:36,263 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:02:36,600 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:02:36,863 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:02:37,187 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2021-03-10 18:02:37,607 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 18:02:37,985 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-10 18:02:38,400 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 18:02:38,844 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 18:02:39,301 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 18:02:40,437 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:40,795 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:41,223 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:41,651 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-03-10 18:02:42,176 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2021-03-10 18:02:43,262 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-03-10 18:02:43,654 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2021-03-10 18:02:44,015 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 18:02:44,409 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-03-10 18:02:44,800 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:45,202 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-03-10 18:02:45,559 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:45,907 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 18:02:46,282 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-03-10 18:02:46,659 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:47,022 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:47,055 INFO L93 Difference]: Finished difference Result 5800 states and 14635 transitions. [2021-03-10 18:02:47,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 18:02:47,057 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:02:47,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:47,061 INFO L225 Difference]: With dead ends: 5800 [2021-03-10 18:02:47,062 INFO L226 Difference]: Without dead ends: 5800 [2021-03-10 18:02:47,062 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 10015.6ms TimeCoverageRelationStatistics Valid=817, Invalid=2045, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:02:47,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2021-03-10 18:02:47,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 2733. [2021-03-10 18:02:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2731 states have (on average 2.6678872207982423) internal successors, (7286), 2732 states have internal predecessors, (7286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 7286 transitions. [2021-03-10 18:02:47,097 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 7286 transitions. Word has length 88 [2021-03-10 18:02:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:47,097 INFO L480 AbstractCegarLoop]: Abstraction has 2733 states and 7286 transitions. [2021-03-10 18:02:47,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 7286 transitions. [2021-03-10 18:02:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:02:47,100 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:47,100 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:47,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-10 18:02:47,100 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:47,100 INFO L82 PathProgramCache]: Analyzing trace with hash 730211831, now seen corresponding path program 124 times [2021-03-10 18:02:47,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:47,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849407600] [2021-03-10 18:02:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:48,445 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:02:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:48,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849407600] [2021-03-10 18:02:48,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:48,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:02:48,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103289229] [2021-03-10 18:02:48,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:02:48,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:48,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:02:48,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:02:48,799 INFO L87 Difference]: Start difference. First operand 2733 states and 7286 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:49,478 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:02:49,679 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:02:50,004 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-03-10 18:02:50,267 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-03-10 18:02:50,593 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2021-03-10 18:02:51,019 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 18:02:51,400 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-10 18:02:51,821 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 18:02:52,911 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 18:02:53,251 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:53,629 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:54,051 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:54,460 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2021-03-10 18:02:54,994 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2021-03-10 18:02:55,858 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-03-10 18:02:56,230 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-03-10 18:02:56,614 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-03-10 18:02:56,956 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-10 18:02:57,315 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-03-10 18:02:57,691 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-03-10 18:02:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:57,709 INFO L93 Difference]: Finished difference Result 4890 states and 12421 transitions. [2021-03-10 18:02:57,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 18:02:57,712 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-03-10 18:02:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:57,716 INFO L225 Difference]: With dead ends: 4890 [2021-03-10 18:02:57,716 INFO L226 Difference]: Without dead ends: 4890 [2021-03-10 18:02:57,716 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 7917.0ms TimeCoverageRelationStatistics Valid=609, Invalid=1647, Unknown=0, NotChecked=0, Total=2256 [2021-03-10 18:02:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2021-03-10 18:02:57,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 2733. [2021-03-10 18:02:57,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2731 states have (on average 2.6678872207982423) internal successors, (7286), 2732 states have internal predecessors, (7286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 7286 transitions. [2021-03-10 18:02:57,753 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 7286 transitions. Word has length 88 [2021-03-10 18:02:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:57,753 INFO L480 AbstractCegarLoop]: Abstraction has 2733 states and 7286 transitions. [2021-03-10 18:02:57,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:57,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 7286 transitions. [2021-03-10 18:02:57,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-03-10 18:02:57,756 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:57,756 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:57,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-10 18:02:57,756 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:57,757 INFO L82 PathProgramCache]: Analyzing trace with hash -126802737, now seen corresponding path program 125 times [2021-03-10 18:02:57,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:57,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976929775] [2021-03-10 18:02:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:58,943 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-03-10 18:02:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:59,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976929775] [2021-03-10 18:02:59,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:59,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-03-10 18:02:59,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754070566] [2021-03-10 18:02:59,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 18:02:59,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:59,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 18:02:59,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-03-10 18:02:59,333 INFO L87 Difference]: Start difference. First operand 2733 states and 7286 transitions. Second operand has 25 states, 25 states have (on average 3.52) internal successors, (88), 25 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:00,067 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-03-10 18:03:00,274 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 18:03:00,611 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 Received shutdown request... [2021-03-10 18:03:00,776 WARN L222 SmtUtils]: Removed 11 from assertion stack [2021-03-10 18:03:00,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 18:03:00,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-10 18:03:00,776 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-10 18:03:00,780 WARN L224 ceAbstractionStarter]: Timeout [2021-03-10 18:03:00,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 06:03:00 BasicIcfg [2021-03-10 18:03:00,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 18:03:00,781 INFO L168 Benchmark]: Toolchain (without parser) took 748758.72 ms. Allocated memory was 255.9 MB in the beginning and 1.0 GB in the end (delta: 769.7 MB). Free memory was 231.4 MB in the beginning and 909.8 MB in the end (delta: -678.4 MB). Peak memory consumption was 91.2 MB. Max. memory is 16.0 GB. [2021-03-10 18:03:00,781 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 18:03:00,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 881.24 ms. Allocated memory was 255.9 MB in the beginning and 333.4 MB in the end (delta: 77.6 MB). Free memory was 230.5 MB in the beginning and 250.7 MB in the end (delta: -20.2 MB). Peak memory consumption was 58.3 MB. Max. memory is 16.0 GB. [2021-03-10 18:03:00,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.28 ms. Allocated memory is still 333.4 MB. Free memory was 250.7 MB in the beginning and 310.8 MB in the end (delta: -60.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.0 GB. [2021-03-10 18:03:00,781 INFO L168 Benchmark]: Boogie Preprocessor took 37.22 ms. Allocated memory is still 333.4 MB. Free memory was 310.8 MB in the beginning and 307.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 18:03:00,781 INFO L168 Benchmark]: RCFGBuilder took 802.84 ms. Allocated memory is still 333.4 MB. Free memory was 307.8 MB in the beginning and 261.7 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. [2021-03-10 18:03:00,781 INFO L168 Benchmark]: TraceAbstraction took 746949.13 ms. Allocated memory was 333.4 MB in the beginning and 1.0 GB in the end (delta: 692.1 MB). Free memory was 261.7 MB in the beginning and 909.8 MB in the end (delta: -648.2 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.0 GB. [2021-03-10 18:03:00,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 881.24 ms. Allocated memory was 255.9 MB in the beginning and 333.4 MB in the end (delta: 77.6 MB). Free memory was 230.5 MB in the beginning and 250.7 MB in the end (delta: -20.2 MB). Peak memory consumption was 58.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 78.28 ms. Allocated memory is still 333.4 MB. Free memory was 250.7 MB in the beginning and 310.8 MB in the end (delta: -60.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 37.22 ms. Allocated memory is still 333.4 MB. Free memory was 310.8 MB in the beginning and 307.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 802.84 ms. Allocated memory is still 333.4 MB. Free memory was 307.8 MB in the beginning and 261.7 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 746949.13 ms. Allocated memory was 333.4 MB in the beginning and 1.0 GB in the end (delta: 692.1 MB). Free memory was 261.7 MB in the beginning and 909.8 MB in the end (delta: -648.2 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while BasicCegarLoop was constructing difference of abstraction (2733states) and FLOYD_HOARE automaton (currently 10 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 64ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while BasicCegarLoop was constructing difference of abstraction (2733states) and FLOYD_HOARE automaton (currently 10 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 64ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while BasicCegarLoop was constructing difference of abstraction (2733states) and FLOYD_HOARE automaton (currently 10 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 64ms.. - TimeoutResultAtElement [Line: 1675]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1675). Cancelled while BasicCegarLoop was constructing difference of abstraction (2733states) and FLOYD_HOARE automaton (currently 10 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 53 for 64ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 118 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 746849.3ms, OverallIterations: 129, TraceHistogramMax: 1, EmptinessCheckTime: 346.9ms, AutomataDifference: 634048.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 200.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34180 SDtfs, 110200 SDslu, 312846 SDs, 0 SdLazy, 146641 SolverSat, 7847 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81285.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6210 GetRequests, 385 SyntacticMatches, 128 SemanticMatches, 5696 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31763 ImplicationChecksByTransitivity, 562746.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4959occurred in iteration=0, InterpolantAutomatonStates: 3480, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5199.7ms AutomataMinimizationTime, 128 MinimizatonAttempts, 396271 StatesRemovedByMinimization, 126 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 224.3ms SsaConstructionTime, 1477.5ms SatisfiabilityAnalysisTime, 104262.4ms InterpolantComputationTime, 11250 NumberOfCodeBlocks, 11250 NumberOfCodeBlocksAsserted, 129 NumberOfCheckSat, 11121 ConstructedInterpolants, 0 QuantifiedInterpolants, 167030 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 129 InterpolantComputations, 129 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown