/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-344d29da17dfcedfb91d6006a5dbd12b556a868d-344d29d [2021-02-16 18:28:06,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-16 18:28:06,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-16 18:28:06,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-16 18:28:06,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-16 18:28:06,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-16 18:28:06,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-16 18:28:06,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-16 18:28:06,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-16 18:28:06,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-16 18:28:06,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-16 18:28:06,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-16 18:28:06,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-16 18:28:06,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-16 18:28:06,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-16 18:28:06,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-16 18:28:06,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-16 18:28:06,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-16 18:28:06,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-16 18:28:06,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-16 18:28:06,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-16 18:28:06,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-16 18:28:06,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-16 18:28:06,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-16 18:28:06,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-16 18:28:06,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-16 18:28:06,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-16 18:28:06,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-16 18:28:06,999 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 [2021-02-16 18:28:07,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-16 18:28:07,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-16 18:28:07,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-16 18:28:07,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-16 18:28:07,036 INFO L138 SettingsManager]: * Use SBE=true [2021-02-16 18:28:07,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-16 18:28:07,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-16 18:28:07,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-16 18:28:07,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-16 18:28:07,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-16 18:28:07,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-16 18:28:07,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-16 18:28:07,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-16 18:28:07,039 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-16 18:28:07,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-16 18:28:07,039 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-16 18:28:07,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-16 18:28:07,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-16 18:28:07,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-16 18:28:07,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-16 18:28:07,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-16 18:28:07,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-16 18:28:07,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-16 18:28:07,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-16 18:28:07,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-16 18:28:07,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-16 18:28:07,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-16 18:28:07,042 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-16 18:28:07,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-16 18:28:07,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-16 18:28:07,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-16 18:28:07,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-16 18:28:07,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-16 18:28:07,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-16 18:28:07,621 INFO L275 PluginConnector]: CDTParser initialized [2021-02-16 18:28:07,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2021-02-16 18:28:07,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bce8db38/0bd924c8edbe405eaf88a13a8eeffdce/FLAG67353f4b3 [2021-02-16 18:28:08,846 INFO L306 CDTParser]: Found 1 translation units. [2021-02-16 18:28:08,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2021-02-16 18:28:08,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bce8db38/0bd924c8edbe405eaf88a13a8eeffdce/FLAG67353f4b3 [2021-02-16 18:28:08,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bce8db38/0bd924c8edbe405eaf88a13a8eeffdce [2021-02-16 18:28:08,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-16 18:28:08,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-02-16 18:28:08,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-16 18:28:08,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-16 18:28:08,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-16 18:28:08,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 06:28:08" (1/1) ... [2021-02-16 18:28:08,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629b8145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:08, skipping insertion in model container [2021-02-16 18:28:08,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 06:28:08" (1/1) ... [2021-02-16 18:28:09,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-16 18:28:09,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-16 18:28:09,243 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-02-16 18:28:09,692 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39095,39108] [2021-02-16 18:28:09,700 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39180,39193] [2021-02-16 18:28:09,701 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39232,39245] [2021-02-16 18:28:09,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 18:28:09,720 INFO L203 MainTranslator]: Completed pre-run [2021-02-16 18:28:09,738 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-02-16 18:28:09,780 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39095,39108] [2021-02-16 18:28:09,782 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39180,39193] [2021-02-16 18:28:09,784 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i[39232,39245] [2021-02-16 18:28:09,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-16 18:28:10,018 INFO L208 MainTranslator]: Completed translation [2021-02-16 18:28:10,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10 WrapperNode [2021-02-16 18:28:10,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-16 18:28:10,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-16 18:28:10,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-16 18:28:10,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-16 18:28:10,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-16 18:28:10,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-16 18:28:10,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-16 18:28:10,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-16 18:28:10,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (1/1) ... [2021-02-16 18:28:10,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-16 18:28:10,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-16 18:28:10,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-16 18:28:10,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-16 18:28:10,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (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 [2021-02-16 18:28:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2021-02-16 18:28:10,328 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2021-02-16 18:28:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-16 18:28:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-16 18:28:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-16 18:28:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-16 18:28:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-16 18:28:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-16 18:28:10,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-16 18:28:10,331 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-16 18:28:11,211 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-16 18:28:11,212 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-02-16 18:28:11,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 06:28:11 BoogieIcfgContainer [2021-02-16 18:28:11,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-16 18:28:11,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-16 18:28:11,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-16 18:28:11,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-16 18:28:11,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 06:28:08" (1/3) ... [2021-02-16 18:28:11,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca95165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 06:28:11, skipping insertion in model container [2021-02-16 18:28:11,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 06:28:10" (2/3) ... [2021-02-16 18:28:11,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca95165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 06:28:11, skipping insertion in model container [2021-02-16 18:28:11,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 06:28:11" (3/3) ... [2021-02-16 18:28:11,232 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2021-02-16 18:28:11,242 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-16 18:28:11,243 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-16 18:28:11,250 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-02-16 18:28:11,252 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-16 18:28:11,331 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,332 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,332 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,333 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,333 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,334 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,334 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,334 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,335 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,336 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,336 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,336 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,336 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,337 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,337 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,337 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,337 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,337 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,338 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,338 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,338 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,339 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,340 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,340 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,340 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,341 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,341 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,341 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,341 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,341 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,341 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,342 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,343 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,343 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,343 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,343 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,343 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,343 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,345 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,345 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,345 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,345 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,346 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,348 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,348 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,348 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,349 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,349 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,349 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,349 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,350 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,350 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,350 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,350 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,350 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,350 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,351 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,351 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,351 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,351 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,351 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,352 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,352 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,352 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,353 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,353 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,354 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,354 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,354 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,354 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,355 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,355 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,355 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,356 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,356 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,356 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,356 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,357 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,357 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,357 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,357 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,358 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,358 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,358 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,359 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,359 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,359 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,359 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,359 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,360 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,360 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,360 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,360 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,360 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,361 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,361 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,362 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,367 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,373 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,375 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,375 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,375 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,379 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,381 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,381 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,381 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,382 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,382 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,383 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,384 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,384 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,384 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,385 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,385 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,386 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,387 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,387 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,387 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,388 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,388 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,388 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,388 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,388 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,389 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,389 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,389 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,389 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,390 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,390 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,390 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,390 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,390 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,390 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,391 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,391 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,391 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,391 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,392 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,392 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,392 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,392 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,392 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,393 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,393 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,393 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,393 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,394 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,394 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,394 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,394 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,394 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,395 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,398 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,398 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,398 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,398 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,399 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,399 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,399 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,399 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,400 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,400 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,400 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,400 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,400 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,400 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,403 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,403 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,403 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,403 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,403 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,404 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,404 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,404 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,404 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,404 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,404 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,405 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,405 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,405 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,405 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,405 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,405 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,406 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,406 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,406 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,406 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,406 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,406 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,407 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,407 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,407 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,407 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,407 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,407 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,408 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,408 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,408 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,408 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,408 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,409 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,409 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,409 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,409 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,410 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,410 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,410 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,410 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,410 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,410 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,411 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,411 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,411 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,411 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,411 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,412 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,413 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,413 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,414 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,414 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,414 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,414 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,415 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,415 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,416 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,422 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,422 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,423 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,425 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,425 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,428 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,429 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,429 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,429 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,429 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,430 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,431 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,431 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,431 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,432 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,438 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,441 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,442 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,442 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,442 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,442 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,443 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,444 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,444 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,444 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,445 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,445 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,445 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,450 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,451 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,451 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,452 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,452 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,453 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,455 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,455 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,456 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,456 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,457 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-16 18:28:11,471 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-02-16 18:28:11,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-02-16 18:28:11,548 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-16 18:28:11,549 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-16 18:28:11,549 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-16 18:28:11,549 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-16 18:28:11,549 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-16 18:28:11,549 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-16 18:28:11,549 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-16 18:28:11,549 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-16 18:28:11,580 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 133 places, 139 transitions, 286 flow [2021-02-16 18:28:11,736 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2145 states, 2141 states have (on average 2.1550677253619805) internal successors, (4614), 2144 states have internal predecessors, (4614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:11,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 2145 states, 2141 states have (on average 2.1550677253619805) internal successors, (4614), 2144 states have internal predecessors, (4614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:11,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-16 18:28:11,762 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:28:11,763 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:28:11,764 INFO L428 AbstractCegarLoop]: === Iteration 1 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:28:11,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:28:11,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1330572047, now seen corresponding path program 1 times [2021-02-16 18:28:11,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:28:11,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534868989] [2021-02-16 18:28:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:28:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:28:12,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:12,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:12,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:12,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:12,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:28:12,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534868989] [2021-02-16 18:28:12,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:28:12,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-16 18:28:12,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532395041] [2021-02-16 18:28:12,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-02-16 18:28:12,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:28:12,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-02-16 18:28:12,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-02-16 18:28:12,127 INFO L87 Difference]: Start difference. First operand has 2145 states, 2141 states have (on average 2.1550677253619805) internal successors, (4614), 2144 states have internal predecessors, (4614), 0 states have call successors, (0), 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 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:12,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:28:12,230 INFO L93 Difference]: Finished difference Result 2145 states and 4354 transitions. [2021-02-16 18:28:12,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-16 18:28:12,232 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-02-16 18:28:12,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:28:12,276 INFO L225 Difference]: With dead ends: 2145 [2021-02-16 18:28:12,276 INFO L226 Difference]: Without dead ends: 2005 [2021-02-16 18:28:12,278 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-02-16 18:28:12,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2021-02-16 18:28:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 2005. [2021-02-16 18:28:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 2002 states have (on average 2.036963036963037) internal successors, (4078), 2004 states have internal predecessors, (4078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 4078 transitions. [2021-02-16 18:28:12,526 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 4078 transitions. Word has length 33 [2021-02-16 18:28:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:28:12,527 INFO L480 AbstractCegarLoop]: Abstraction has 2005 states and 4078 transitions. [2021-02-16 18:28:12,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:12,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 4078 transitions. [2021-02-16 18:28:12,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-02-16 18:28:12,531 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:28:12,531 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:28:12,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-16 18:28:12,532 INFO L428 AbstractCegarLoop]: === Iteration 2 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:28:12,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:28:12,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1701970972, now seen corresponding path program 1 times [2021-02-16 18:28:12,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:28:12,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535363181] [2021-02-16 18:28:12,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:28:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:28:12,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:12,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:12,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:12,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:28:12,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:12,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:12,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:28:12,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535363181] [2021-02-16 18:28:12,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:28:12,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-16 18:28:12,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443764801] [2021-02-16 18:28:12,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-16 18:28:12,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:28:12,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-16 18:28:12,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-16 18:28:12,694 INFO L87 Difference]: Start difference. First operand 2005 states and 4078 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:28:12,781 INFO L93 Difference]: Finished difference Result 3259 states and 6657 transitions. [2021-02-16 18:28:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-16 18:28:12,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-02-16 18:28:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:28:12,822 INFO L225 Difference]: With dead ends: 3259 [2021-02-16 18:28:12,822 INFO L226 Difference]: Without dead ends: 3259 [2021-02-16 18:28:12,826 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-16 18:28:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2021-02-16 18:28:12,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 2467. [2021-02-16 18:28:12,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2464 states have (on average 2.049107142857143) internal successors, (5049), 2466 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 5049 transitions. [2021-02-16 18:28:12,959 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 5049 transitions. Word has length 34 [2021-02-16 18:28:12,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:28:12,961 INFO L480 AbstractCegarLoop]: Abstraction has 2467 states and 5049 transitions. [2021-02-16 18:28:12,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 5049 transitions. [2021-02-16 18:28:12,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-16 18:28:12,980 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:28:12,981 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:28:12,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-16 18:28:12,982 INFO L428 AbstractCegarLoop]: === Iteration 3 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:28:12,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:28:12,983 INFO L82 PathProgramCache]: Analyzing trace with hash 155975240, now seen corresponding path program 1 times [2021-02-16 18:28:12,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:28:12,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657818325] [2021-02-16 18:28:12,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:28:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:28:13,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:13,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:28:13,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:28:13,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:13,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:13,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:28:13,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-16 18:28:13,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:28:13,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:28:13,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:28:13,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:28:13,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:28:13,676 WARN L141 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-02-16 18:28:13,678 WARN L147 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size 13 [2021-02-16 18:28:13,707 WARN L141 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-02-16 18:28:13,708 WARN L147 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size 9 [2021-02-16 18:28:13,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:28:13,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:28:13,789 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:28:13,791 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:28:13,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:13,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:28:13,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657818325] [2021-02-16 18:28:13,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:28:13,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-16 18:28:13,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194244404] [2021-02-16 18:28:13,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-16 18:28:13,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:28:13,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-16 18:28:13,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-02-16 18:28:13,874 INFO L87 Difference]: Start difference. First operand 2467 states and 5049 transitions. Second operand has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:14,816 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-02-16 18:28:14,992 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2021-02-16 18:28:15,203 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2021-02-16 18:28:15,392 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2021-02-16 18:28:15,595 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2021-02-16 18:28:15,807 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2021-02-16 18:28:16,006 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2021-02-16 18:28:16,219 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2021-02-16 18:28:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:28:17,405 INFO L93 Difference]: Finished difference Result 2781 states and 5695 transitions. [2021-02-16 18:28:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-16 18:28:17,407 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-02-16 18:28:17,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:28:17,425 INFO L225 Difference]: With dead ends: 2781 [2021-02-16 18:28:17,426 INFO L226 Difference]: Without dead ends: 2666 [2021-02-16 18:28:17,427 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2021-02-16 18:28:17,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2021-02-16 18:28:17,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2478. [2021-02-16 18:28:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2478 states, 2475 states have (on average 2.052929292929293) internal successors, (5081), 2477 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2478 states to 2478 states and 5081 transitions. [2021-02-16 18:28:17,531 INFO L78 Accepts]: Start accepts. Automaton has 2478 states and 5081 transitions. Word has length 63 [2021-02-16 18:28:17,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:28:17,532 INFO L480 AbstractCegarLoop]: Abstraction has 2478 states and 5081 transitions. [2021-02-16 18:28:17,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:17,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2478 states and 5081 transitions. [2021-02-16 18:28:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:28:17,538 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:28:17,538 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:28:17,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-16 18:28:17,539 INFO L428 AbstractCegarLoop]: === Iteration 4 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:28:17,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:28:17,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1459840288, now seen corresponding path program 1 times [2021-02-16 18:28:17,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:28:17,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781457353] [2021-02-16 18:28:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:28:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:28:17,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:17,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:17,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:17,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:28:17,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:17,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:28:17,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:17,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:17,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:17,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:18,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:28:18,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:28:18,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:28:18,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:18,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:18,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:18,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:18,239 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:18,241 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:18,278 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:28:18,285 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:28:18,320 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:28:18,322 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:28:18,362 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:28:18,365 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:28:18,398 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:28:18,402 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:28:18,437 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:28:18,438 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:28:18,490 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:28:18,494 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:28:18,569 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:28:18,576 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:28:18,669 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:28:18,671 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:28:18,757 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:28:18,760 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:28:18,844 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:28:18,846 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:28:18,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:28:18,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:18,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:28:18,969 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:28:18,972 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:28:19,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:19,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:28:19,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781457353] [2021-02-16 18:28:19,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:28:19,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:28:19,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078186899] [2021-02-16 18:28:19,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:28:19,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:28:19,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:28:19,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:28:19,100 INFO L87 Difference]: Start difference. First operand 2478 states and 5081 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:20,229 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-02-16 18:28:20,481 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2021-02-16 18:28:20,724 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2021-02-16 18:28:20,971 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2021-02-16 18:28:21,206 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-02-16 18:28:21,487 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-02-16 18:28:21,736 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2021-02-16 18:28:21,990 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-02-16 18:28:22,276 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-02-16 18:28:22,569 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2021-02-16 18:28:22,853 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-02-16 18:28:23,112 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-02-16 18:28:23,390 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:28:23,661 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-02-16 18:28:23,959 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:28:24,328 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:28:24,623 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-02-16 18:28:25,031 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:28:25,315 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-02-16 18:28:25,674 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:28:25,987 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:28:26,400 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:28:26,779 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:28:27,147 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:28:27,503 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:28:27,863 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:28:28,326 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:28:28,682 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:28:29,111 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:28:29,489 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2021-02-16 18:28:29,992 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2021-02-16 18:28:30,464 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-02-16 18:28:30,950 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:28:31,400 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:28:31,621 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2021-02-16 18:28:32,128 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:28:32,345 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2021-02-16 18:28:32,534 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2021-02-16 18:28:33,052 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:28:33,283 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-02-16 18:28:33,478 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-02-16 18:28:33,847 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-02-16 18:28:34,078 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2021-02-16 18:28:34,517 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2021-02-16 18:28:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:28:35,244 INFO L93 Difference]: Finished difference Result 2992 states and 6129 transitions. [2021-02-16 18:28:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-16 18:28:35,246 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:28:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:28:35,269 INFO L225 Difference]: With dead ends: 2992 [2021-02-16 18:28:35,269 INFO L226 Difference]: Without dead ends: 2992 [2021-02-16 18:28:35,272 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1917, Invalid=5223, Unknown=0, NotChecked=0, Total=7140 [2021-02-16 18:28:35,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-02-16 18:28:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2500. [2021-02-16 18:28:35,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2500 states, 2497 states have (on average 2.052863436123348) internal successors, (5126), 2499 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 5126 transitions. [2021-02-16 18:28:35,379 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 5126 transitions. Word has length 82 [2021-02-16 18:28:35,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:28:35,380 INFO L480 AbstractCegarLoop]: Abstraction has 2500 states and 5126 transitions. [2021-02-16 18:28:35,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 5126 transitions. [2021-02-16 18:28:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:28:35,385 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:28:35,386 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:28:35,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-16 18:28:35,387 INFO L428 AbstractCegarLoop]: === Iteration 5 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:28:35,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:28:35,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1287117670, now seen corresponding path program 2 times [2021-02-16 18:28:35,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:28:35,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145057652] [2021-02-16 18:28:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:28:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:28:35,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:35,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:28:35,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:28:35,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:35,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:35,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:28:35,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:28:35,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:28:35,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:35,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:35,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:35,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:35,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:35,951 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:35,953 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:35,993 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:35,995 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:36,027 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:36,028 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:36,066 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:36,067 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:36,116 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:28:36,117 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:28:36,188 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:28:36,189 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:28:36,235 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:28:36,236 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:28:36,313 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:28:36,315 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:28:36,413 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:28:36,418 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:28:36,506 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:28:36,508 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:28:36,589 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:28:36,590 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:28:36,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:36,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:28:36,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:36,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:28:36,704 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:28:36,706 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:28:36,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:36,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:36,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:28:36,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145057652] [2021-02-16 18:28:36,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:28:36,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:28:36,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264274628] [2021-02-16 18:28:36,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:28:36,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:28:36,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:28:36,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:28:36,793 INFO L87 Difference]: Start difference. First operand 2500 states and 5126 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:37,596 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:28:37,814 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-02-16 18:28:38,054 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2021-02-16 18:28:38,284 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2021-02-16 18:28:38,488 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2021-02-16 18:28:38,744 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2021-02-16 18:28:38,984 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-02-16 18:28:39,288 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-02-16 18:28:39,539 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2021-02-16 18:28:39,817 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-02-16 18:28:40,104 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-02-16 18:28:40,361 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:28:40,607 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2021-02-16 18:28:40,872 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-02-16 18:28:41,139 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-02-16 18:28:41,404 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:28:41,680 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:28:41,970 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-02-16 18:28:42,226 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2021-02-16 18:28:42,516 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:28:42,889 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:28:43,202 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-02-16 18:28:43,501 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:28:43,926 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:28:44,222 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-02-16 18:28:44,608 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:28:44,872 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-02-16 18:28:45,195 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:28:45,575 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:28:45,918 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:28:46,236 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:28:46,659 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:28:47,025 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:28:47,438 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:28:47,843 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:28:48,236 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:28:48,716 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:28:49,106 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:28:49,538 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:28:49,934 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2021-02-16 18:28:50,469 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2021-02-16 18:28:50,960 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-02-16 18:28:51,496 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:28:51,970 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:28:52,166 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-02-16 18:28:52,673 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:28:52,867 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-02-16 18:28:53,025 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-02-16 18:28:53,554 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:28:53,787 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-02-16 18:28:53,952 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-02-16 18:28:54,282 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-02-16 18:28:54,482 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-02-16 18:28:54,885 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-02-16 18:28:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:28:55,580 INFO L93 Difference]: Finished difference Result 3214 states and 6586 transitions. [2021-02-16 18:28:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-02-16 18:28:55,581 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:28:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:28:55,601 INFO L225 Difference]: With dead ends: 3214 [2021-02-16 18:28:55,601 INFO L226 Difference]: Without dead ends: 3214 [2021-02-16 18:28:55,606 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1718 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=2283, Invalid=6459, Unknown=0, NotChecked=0, Total=8742 [2021-02-16 18:28:55,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3214 states. [2021-02-16 18:28:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3214 to 2507. [2021-02-16 18:28:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 2504 states have (on average 2.0527156549520766) internal successors, (5140), 2506 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 5140 transitions. [2021-02-16 18:28:55,721 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 5140 transitions. Word has length 82 [2021-02-16 18:28:55,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:28:55,722 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 5140 transitions. [2021-02-16 18:28:55,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 5140 transitions. [2021-02-16 18:28:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:28:55,728 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:28:55,728 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:28:55,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-16 18:28:55,729 INFO L428 AbstractCegarLoop]: === Iteration 6 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:28:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:28:55,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1588004984, now seen corresponding path program 3 times [2021-02-16 18:28:55,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:28:55,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046938104] [2021-02-16 18:28:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:28:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:28:55,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:55,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:55,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:55,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:28:55,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:55,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:28:55,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:55,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:56,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:28:56,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:28:56,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:28:56,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:28:56,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:56,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:56,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:56,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:28:56,247 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:56,248 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:56,294 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:56,295 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:56,329 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:56,330 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:56,372 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:56,373 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:56,412 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:28:56,413 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:28:56,456 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:28:56,458 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:28:56,537 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:28:56,539 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:28:56,614 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:28:56,616 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:28:56,706 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:28:56,707 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:28:56,798 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:28:56,799 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:28:56,890 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:28:56,891 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:28:56,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:28:56,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:56,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:28:57,020 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:28:57,021 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:28:57,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:28:57,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:28:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:28:57,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046938104] [2021-02-16 18:28:57,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:28:57,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:28:57,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938166147] [2021-02-16 18:28:57,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:28:57,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:28:57,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:28:57,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:28:57,103 INFO L87 Difference]: Start difference. First operand 2507 states and 5140 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:28:58,355 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-02-16 18:28:58,635 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2021-02-16 18:28:58,877 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2021-02-16 18:28:59,096 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2021-02-16 18:28:59,332 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2021-02-16 18:28:59,566 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-02-16 18:28:59,859 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-02-16 18:29:00,073 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2021-02-16 18:29:00,346 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-02-16 18:29:00,606 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-02-16 18:29:00,853 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:29:01,100 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 52 [2021-02-16 18:29:01,365 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-02-16 18:29:01,641 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-02-16 18:29:01,914 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:29:02,215 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:29:02,498 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-02-16 18:29:02,755 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2021-02-16 18:29:03,049 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:29:03,423 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:29:03,732 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-02-16 18:29:04,048 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:29:04,470 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:29:04,772 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-02-16 18:29:05,106 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:29:05,478 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:29:05,765 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-02-16 18:29:06,105 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:29:06,497 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:29:06,834 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:29:07,156 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:29:07,508 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:29:07,914 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:29:08,292 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:29:08,711 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:29:09,121 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:29:09,518 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:29:09,896 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:29:10,329 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:29:10,719 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:29:11,131 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:29:11,540 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:29:11,973 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:29:12,445 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:29:12,899 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:29:13,412 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:29:13,863 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:29:14,438 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:29:14,912 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:29:15,066 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:29:15,616 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:29:15,776 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:29:16,449 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:29:16,628 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:29:17,049 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:29:17,200 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:29:18,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:29:18,281 INFO L93 Difference]: Finished difference Result 3187 states and 6532 transitions. [2021-02-16 18:29:18,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-02-16 18:29:18,282 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:29:18,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:29:18,299 INFO L225 Difference]: With dead ends: 3187 [2021-02-16 18:29:18,300 INFO L226 Difference]: Without dead ends: 3187 [2021-02-16 18:29:18,304 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=2542, Invalid=7358, Unknown=0, NotChecked=0, Total=9900 [2021-02-16 18:29:18,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2021-02-16 18:29:18,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 2518. [2021-02-16 18:29:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2515 states have (on average 2.052882703777336) internal successors, (5163), 2517 states have internal predecessors, (5163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 5163 transitions. [2021-02-16 18:29:18,399 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 5163 transitions. Word has length 82 [2021-02-16 18:29:18,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:29:18,400 INFO L480 AbstractCegarLoop]: Abstraction has 2518 states and 5163 transitions. [2021-02-16 18:29:18,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:18,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 5163 transitions. [2021-02-16 18:29:18,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:29:18,405 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:29:18,405 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:29:18,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-16 18:29:18,406 INFO L428 AbstractCegarLoop]: === Iteration 7 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:29:18,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:29:18,407 INFO L82 PathProgramCache]: Analyzing trace with hash -778646510, now seen corresponding path program 4 times [2021-02-16 18:29:18,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:29:18,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878143949] [2021-02-16 18:29:18,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:29:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:29:18,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:18,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:29:18,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:18,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:29:18,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:18,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:29:18,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:18,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:29:18,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:18,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:29:18,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:18,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:29:18,751 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:29:18,752 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:29:18,771 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:29:18,772 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:29:18,792 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:29:18,792 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:29:18,814 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:29:18,815 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:29:18,842 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:29:18,843 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:29:18,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:18,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:29:18,931 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:29:18,932 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:29:18,988 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:29:18,989 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:29:19,047 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:29:19,047 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:29:19,118 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:29:19,120 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:29:19,181 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:29:19,182 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:29:19,250 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:29:19,251 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:29:19,327 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:29:19,329 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:29:19,415 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:29:19,416 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:29:19,460 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:29:19,461 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:29:19,551 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:29:19,552 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:29:19,591 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:29:19,592 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:29:19,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:19,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:29:19,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:19,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:29:19,737 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:29:19,742 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:29:19,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:19,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:29:19,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:19,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:29:19,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:19,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:29:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:29:19,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878143949] [2021-02-16 18:29:19,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:29:19,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:29:19,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382172317] [2021-02-16 18:29:19,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:29:19,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:29:19,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:29:19,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:29:19,845 INFO L87 Difference]: Start difference. First operand 2518 states and 5163 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:20,942 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-16 18:29:21,184 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-02-16 18:29:21,412 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2021-02-16 18:29:21,630 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2021-02-16 18:29:21,862 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2021-02-16 18:29:22,094 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-02-16 18:29:22,401 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-02-16 18:29:22,658 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-02-16 18:29:22,928 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2021-02-16 18:29:23,213 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-02-16 18:29:23,472 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-02-16 18:29:23,691 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-02-16 18:29:23,957 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-02-16 18:29:24,218 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-02-16 18:29:24,511 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:29:24,771 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2021-02-16 18:29:25,060 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-02-16 18:29:25,299 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2021-02-16 18:29:25,616 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:29:26,017 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-02-16 18:29:26,335 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:29:26,608 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2021-02-16 18:29:27,043 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-02-16 18:29:27,344 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:29:27,667 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:29:28,048 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:29:28,330 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-02-16 18:29:28,691 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-02-16 18:29:29,086 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:29:29,465 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-02-16 18:29:29,785 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-02-16 18:29:30,181 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-02-16 18:29:30,580 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:29:30,990 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2021-02-16 18:29:31,430 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-02-16 18:29:31,867 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 72 [2021-02-16 18:29:32,327 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 74 [2021-02-16 18:29:32,721 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-02-16 18:29:33,096 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:29:33,582 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-02-16 18:29:34,041 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-02-16 18:29:34,467 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:29:34,897 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 75 [2021-02-16 18:29:35,347 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-02-16 18:29:35,822 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-02-16 18:29:36,296 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-02-16 18:29:36,819 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2021-02-16 18:29:37,297 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-02-16 18:29:37,808 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 75 [2021-02-16 18:29:38,228 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-02-16 18:29:38,724 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2021-02-16 18:29:39,206 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 84 [2021-02-16 18:29:39,823 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 86 [2021-02-16 18:29:40,473 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2021-02-16 18:29:41,040 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2021-02-16 18:29:41,689 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2021-02-16 18:29:42,245 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 88 [2021-02-16 18:29:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:29:43,029 INFO L93 Difference]: Finished difference Result 3288 states and 6733 transitions. [2021-02-16 18:29:43,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-02-16 18:29:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:29:43,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:29:43,049 INFO L225 Difference]: With dead ends: 3288 [2021-02-16 18:29:43,050 INFO L226 Difference]: Without dead ends: 3288 [2021-02-16 18:29:43,053 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=2597, Invalid=6333, Unknown=0, NotChecked=0, Total=8930 [2021-02-16 18:29:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-02-16 18:29:43,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 2787. [2021-02-16 18:29:43,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2784 states have (on average 2.0520833333333335) internal successors, (5713), 2786 states have internal predecessors, (5713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:43,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 5713 transitions. [2021-02-16 18:29:43,156 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 5713 transitions. Word has length 82 [2021-02-16 18:29:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:29:43,156 INFO L480 AbstractCegarLoop]: Abstraction has 2787 states and 5713 transitions. [2021-02-16 18:29:43,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 5713 transitions. [2021-02-16 18:29:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:29:43,163 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:29:43,163 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:29:43,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-16 18:29:43,163 INFO L428 AbstractCegarLoop]: === Iteration 8 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:29:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:29:43,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1732309788, now seen corresponding path program 5 times [2021-02-16 18:29:43,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:29:43,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856962034] [2021-02-16 18:29:43,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:29:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:29:43,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:29:43,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:29:43,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:29:43,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:29:43,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:29:43,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:29:43,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:29:43,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:29:43,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:43,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:43,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:43,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:43,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:43,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:43,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:43,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:43,776 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:29:43,779 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:29:43,825 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:29:43,826 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:29:43,872 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:29:43,873 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:29:43,924 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:29:43,925 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:29:44,004 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:29:44,007 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:29:44,107 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:29:44,108 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:29:44,199 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:29:44,201 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:29:44,291 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:29:44,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:29:44,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:44,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:29:44,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:44,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:29:44,421 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:29:44,422 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:29:44,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:44,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:29:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:29:44,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856962034] [2021-02-16 18:29:44,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:29:44,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:29:44,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684647583] [2021-02-16 18:29:44,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:29:44,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:29:44,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:29:44,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:29:44,520 INFO L87 Difference]: Start difference. First operand 2787 states and 5713 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:45,418 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:29:45,672 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-02-16 18:29:45,897 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:29:46,197 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:29:46,494 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:29:46,914 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:29:47,249 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:29:47,587 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:29:47,984 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:29:48,322 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:29:48,636 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:29:49,013 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:29:49,344 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:29:49,752 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:29:50,109 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:29:50,485 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:29:50,849 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:29:51,243 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:29:51,703 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:29:52,100 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:29:52,534 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:29:52,937 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2021-02-16 18:29:53,450 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2021-02-16 18:29:53,945 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-02-16 18:29:54,441 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:29:54,893 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:29:55,100 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-02-16 18:29:55,579 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:29:55,783 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-02-16 18:29:55,965 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-02-16 18:29:56,483 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:29:56,719 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-02-16 18:29:56,901 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-02-16 18:29:57,244 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-02-16 18:29:57,452 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-02-16 18:29:57,882 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-02-16 18:29:58,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:29:58,606 INFO L93 Difference]: Finished difference Result 3784 states and 7755 transitions. [2021-02-16 18:29:58,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:29:58,607 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:29:58,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:29:58,620 INFO L225 Difference]: With dead ends: 3784 [2021-02-16 18:29:58,620 INFO L226 Difference]: Without dead ends: 3784 [2021-02-16 18:29:58,623 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=1501, Invalid=4199, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:29:58,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2021-02-16 18:29:58,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 2899. [2021-02-16 18:29:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2896 states have (on average 2.050414364640884) internal successors, (5938), 2898 states have internal predecessors, (5938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 5938 transitions. [2021-02-16 18:29:58,728 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 5938 transitions. Word has length 82 [2021-02-16 18:29:58,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:29:58,729 INFO L480 AbstractCegarLoop]: Abstraction has 2899 states and 5938 transitions. [2021-02-16 18:29:58,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:29:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 5938 transitions. [2021-02-16 18:29:58,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:29:58,735 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:29:58,736 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:29:58,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-16 18:29:58,736 INFO L428 AbstractCegarLoop]: === Iteration 9 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:29:58,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:29:58,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1142812866, now seen corresponding path program 6 times [2021-02-16 18:29:58,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:29:58,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330750668] [2021-02-16 18:29:58,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:29:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:29:58,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:29:58,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:29:58,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:29:58,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:29:58,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:29:58,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:29:58,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:29:58,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:58,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:29:59,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:59,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:59,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:59,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:59,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:59,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:59,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:29:59,312 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:29:59,313 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:29:59,363 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:29:59,364 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:29:59,417 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:29:59,418 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:29:59,504 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:29:59,506 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:29:59,600 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:29:59,602 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:29:59,697 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:29:59,699 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:29:59,799 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:29:59,801 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:29:59,893 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:29:59,895 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:29:59,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:29:59,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:29:59,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:30:00,035 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:30:00,036 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:30:00,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:00,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:30:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:30:00,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330750668] [2021-02-16 18:30:00,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:30:00,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:30:00,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042976479] [2021-02-16 18:30:00,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:30:00,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:30:00,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:30:00,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:30:00,148 INFO L87 Difference]: Start difference. First operand 2899 states and 5938 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:30:01,171 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:30:01,440 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-02-16 18:30:01,654 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:30:02,005 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:30:02,322 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:30:02,803 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:30:03,169 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:30:03,539 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:30:03,946 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:30:04,254 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:30:04,630 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:30:04,965 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:30:05,379 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:30:05,713 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:30:06,066 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:30:06,475 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:30:06,844 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:30:07,249 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:30:07,629 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:30:08,032 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:30:08,406 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:30:08,851 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:30:09,266 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:30:09,682 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:30:10,096 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:30:10,515 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:30:10,989 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:30:11,457 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:30:11,966 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:30:12,411 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:30:12,959 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:30:13,475 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:30:13,650 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:30:14,205 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:30:14,381 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:30:15,074 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:30:15,281 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:30:15,732 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:30:15,895 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:30:16,282 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:30:17,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:30:17,119 INFO L93 Difference]: Finished difference Result 3923 states and 8046 transitions. [2021-02-16 18:30:17,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-02-16 18:30:17,120 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:30:17,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:30:17,131 INFO L225 Difference]: With dead ends: 3923 [2021-02-16 18:30:17,132 INFO L226 Difference]: Without dead ends: 3923 [2021-02-16 18:30:17,134 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=1742, Invalid=4900, Unknown=0, NotChecked=0, Total=6642 [2021-02-16 18:30:17,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2021-02-16 18:30:17,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 2910. [2021-02-16 18:30:17,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2910 states, 2907 states have (on average 2.050567595459236) internal successors, (5961), 2909 states have internal predecessors, (5961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:30:17,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 5961 transitions. [2021-02-16 18:30:17,235 INFO L78 Accepts]: Start accepts. Automaton has 2910 states and 5961 transitions. Word has length 82 [2021-02-16 18:30:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:30:17,235 INFO L480 AbstractCegarLoop]: Abstraction has 2910 states and 5961 transitions. [2021-02-16 18:30:17,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:30:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2910 states and 5961 transitions. [2021-02-16 18:30:17,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:30:17,242 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:30:17,242 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:30:17,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-16 18:30:17,242 INFO L428 AbstractCegarLoop]: === Iteration 10 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:30:17,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:30:17,243 INFO L82 PathProgramCache]: Analyzing trace with hash -333454392, now seen corresponding path program 7 times [2021-02-16 18:30:17,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:30:17,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272491872] [2021-02-16 18:30:17,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:30:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:30:17,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:30:17,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:30:17,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:30:17,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:30:17,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:30:17,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:30:17,489 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:30:17,490 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:30:17,508 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:30:17,508 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:30:17,526 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:30:17,528 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:30:17,595 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:30:17,597 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:30:17,632 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:30:17,633 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:30:17,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:30:17,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:30:17,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:30:17,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:17,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:30:17,946 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:30:17,947 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:30:18,020 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:30:18,021 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:30:18,100 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:30:18,101 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:30:18,183 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:30:18,185 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:30:18,275 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:30:18,276 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:30:18,325 WARN L141 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size [2021-02-16 18:30:18,326 WARN L147 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size 53 [2021-02-16 18:30:18,433 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:30:18,434 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:30:18,484 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:30:18,485 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:30:18,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:18,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:30:18,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:18,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:30:18,637 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:30:18,638 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:30:18,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:18,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:30:18,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:18,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:30:18,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:18,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:30:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:30:18,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272491872] [2021-02-16 18:30:18,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:30:18,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:30:18,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401655607] [2021-02-16 18:30:18,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:30:18,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:30:18,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:30:18,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:30:18,739 INFO L87 Difference]: Start difference. First operand 2910 states and 5961 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:30:19,627 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:30:19,873 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-16 18:30:20,076 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:30:20,304 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:30:20,537 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2021-02-16 18:30:20,770 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:30:21,011 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:30:21,264 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2021-02-16 18:30:21,517 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-02-16 18:30:21,790 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:30:22,082 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2021-02-16 18:30:22,348 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-02-16 18:30:22,619 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2021-02-16 18:30:22,915 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-16 18:30:23,205 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-02-16 18:30:23,463 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-02-16 18:30:23,737 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-02-16 18:30:24,031 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-02-16 18:30:24,345 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-02-16 18:30:24,635 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2021-02-16 18:30:24,942 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-02-16 18:30:25,205 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-02-16 18:30:25,548 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-02-16 18:30:25,975 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-02-16 18:30:26,327 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:30:26,635 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:30:27,114 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-02-16 18:30:27,436 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:30:27,801 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-02-16 18:30:28,230 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-16 18:30:28,531 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-02-16 18:30:28,921 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-02-16 18:30:29,335 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-02-16 18:30:29,734 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-02-16 18:30:30,089 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-02-16 18:30:30,510 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-02-16 18:30:30,931 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-02-16 18:30:31,369 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2021-02-16 18:30:31,858 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-02-16 18:30:32,333 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-02-16 18:30:32,813 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-02-16 18:30:33,242 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-02-16 18:30:33,654 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-16 18:30:34,169 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-02-16 18:30:34,637 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 76 [2021-02-16 18:30:35,114 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-02-16 18:30:35,600 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-02-16 18:30:36,117 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-02-16 18:30:36,671 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-02-16 18:30:37,211 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-02-16 18:30:37,807 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 76 [2021-02-16 18:30:38,311 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-02-16 18:30:38,850 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-02-16 18:30:39,324 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-02-16 18:30:39,895 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-02-16 18:30:40,413 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-02-16 18:30:41,044 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-02-16 18:30:41,749 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-02-16 18:30:42,358 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 87 [2021-02-16 18:30:43,007 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-02-16 18:30:43,632 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-02-16 18:30:44,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:30:44,397 INFO L93 Difference]: Finished difference Result 3845 states and 7878 transitions. [2021-02-16 18:30:44,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-16 18:30:44,399 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:30:44,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:30:44,407 INFO L225 Difference]: With dead ends: 3845 [2021-02-16 18:30:44,408 INFO L226 Difference]: Without dead ends: 3845 [2021-02-16 18:30:44,411 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1588 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=2771, Invalid=6735, Unknown=0, NotChecked=0, Total=9506 [2021-02-16 18:30:44,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2021-02-16 18:30:44,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 2844. [2021-02-16 18:30:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2841 states have (on average 2.051742344244984) internal successors, (5829), 2843 states have internal predecessors, (5829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:30:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 5829 transitions. [2021-02-16 18:30:44,501 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 5829 transitions. Word has length 82 [2021-02-16 18:30:44,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:30:44,502 INFO L480 AbstractCegarLoop]: Abstraction has 2844 states and 5829 transitions. [2021-02-16 18:30:44,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:30:44,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 5829 transitions. [2021-02-16 18:30:44,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:30:44,509 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:30:44,510 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:30:44,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-16 18:30:44,510 INFO L428 AbstractCegarLoop]: === Iteration 11 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:30:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:30:44,511 INFO L82 PathProgramCache]: Analyzing trace with hash 289990434, now seen corresponding path program 8 times [2021-02-16 18:30:44,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:30:44,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769463229] [2021-02-16 18:30:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:30:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:30:44,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:30:44,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:30:44,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:30:44,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:30:44,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:30:44,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:30:44,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:30:44,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:30:44,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:44,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:44,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:44,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:44,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:44,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:44,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:45,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:45,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:45,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:45,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:30:45,087 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:30:45,088 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:30:45,138 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:30:45,144 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:30:45,230 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:30:45,231 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:30:45,320 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:30:45,323 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:30:45,426 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:30:45,428 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:30:45,532 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:30:45,533 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:30:45,630 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:30:45,631 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:30:45,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:45,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:30:45,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:45,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:30:45,778 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:30:45,779 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:30:45,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:30:45,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:30:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:30:45,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769463229] [2021-02-16 18:30:45,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:30:45,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:30:45,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279721110] [2021-02-16 18:30:45,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:30:45,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:30:45,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:30:45,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:30:45,908 INFO L87 Difference]: Start difference. First operand 2844 states and 5829 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:30:47,000 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:30:47,279 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-02-16 18:30:47,505 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:30:47,899 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:30:48,251 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:30:48,784 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:30:49,328 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:30:49,753 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:30:50,218 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:30:50,584 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:30:51,039 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:30:51,432 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:30:51,868 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:30:52,226 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:30:52,673 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:30:53,116 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:30:53,468 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:30:53,937 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:30:54,365 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:30:54,765 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:30:55,295 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:30:55,702 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:30:56,225 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:30:56,675 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:30:57,213 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:30:57,730 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:30:57,897 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:30:58,142 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:30:58,603 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:30:59,023 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:30:59,207 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:30:59,656 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:30:59,990 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:31:00,161 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:31:00,516 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:31:01,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:31:01,562 INFO L93 Difference]: Finished difference Result 3694 states and 7579 transitions. [2021-02-16 18:31:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:31:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:31:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:31:01,598 INFO L225 Difference]: With dead ends: 3694 [2021-02-16 18:31:01,598 INFO L226 Difference]: Without dead ends: 3694 [2021-02-16 18:31:01,600 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=1480, Invalid=4220, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:31:01,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2021-02-16 18:31:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 2892. [2021-02-16 18:31:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2889 states have (on average 2.051574939425407) internal successors, (5927), 2891 states have internal predecessors, (5927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 5927 transitions. [2021-02-16 18:31:01,701 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 5927 transitions. Word has length 82 [2021-02-16 18:31:01,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:31:01,702 INFO L480 AbstractCegarLoop]: Abstraction has 2892 states and 5927 transitions. [2021-02-16 18:31:01,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 5927 transitions. [2021-02-16 18:31:01,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:31:01,715 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:31:01,715 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:31:01,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-16 18:31:01,716 INFO L428 AbstractCegarLoop]: === Iteration 12 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:31:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:31:01,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1099348908, now seen corresponding path program 9 times [2021-02-16 18:31:01,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:31:01,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591919610] [2021-02-16 18:31:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:31:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:31:01,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:01,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:01,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:01,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:31:01,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:01,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:31:01,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:01,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:31:01,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:01,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:31:01,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:01,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:31:01,989 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:31:01,990 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:31:02,013 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:31:02,013 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:31:02,036 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:31:02,037 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:31:02,066 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:31:02,068 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:31:02,102 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:31:02,103 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:31:02,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:02,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:02,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:02,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:02,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:02,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:02,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:02,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:02,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:02,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:02,507 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:31:02,508 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:31:02,590 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:31:02,591 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:31:02,678 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:31:02,679 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:31:02,779 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:31:02,780 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:31:02,828 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:31:02,829 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:31:02,929 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:31:02,930 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:31:02,981 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:31:02,981 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:31:03,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:03,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:31:03,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:03,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:31:03,139 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:31:03,140 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:31:03,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:03,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:03,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:03,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:03,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:03,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:03,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:31:03,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591919610] [2021-02-16 18:31:03,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:31:03,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:31:03,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263577954] [2021-02-16 18:31:03,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:31:03,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:31:03,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:31:03,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:31:03,250 INFO L87 Difference]: Start difference. First operand 2892 states and 5927 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:04,331 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:31:04,593 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-16 18:31:04,812 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:31:05,066 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:31:05,316 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2021-02-16 18:31:05,559 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:31:05,817 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:31:06,079 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2021-02-16 18:31:06,342 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-02-16 18:31:06,628 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:31:06,927 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2021-02-16 18:31:07,203 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-02-16 18:31:07,509 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2021-02-16 18:31:07,808 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-16 18:31:08,108 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-02-16 18:31:08,390 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-02-16 18:31:08,667 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-02-16 18:31:08,967 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-02-16 18:31:09,284 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-02-16 18:31:09,631 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-02-16 18:31:09,923 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2021-02-16 18:31:10,251 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-02-16 18:31:10,534 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-02-16 18:31:10,879 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:31:11,327 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-02-16 18:31:11,681 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:31:11,994 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:31:12,510 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-02-16 18:31:12,860 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:31:13,232 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-02-16 18:31:13,686 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:31:13,997 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-02-16 18:31:14,396 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-02-16 18:31:14,862 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-02-16 18:31:15,282 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-02-16 18:31:15,644 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-02-16 18:31:16,083 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-02-16 18:31:16,560 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-02-16 18:31:17,040 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2021-02-16 18:31:17,549 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-02-16 18:31:18,052 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-02-16 18:31:18,556 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-02-16 18:31:19,026 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-02-16 18:31:19,439 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-16 18:31:19,971 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-02-16 18:31:20,472 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 76 [2021-02-16 18:31:20,993 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-02-16 18:31:21,495 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-02-16 18:31:22,009 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-02-16 18:31:22,629 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-02-16 18:31:23,200 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-02-16 18:31:23,816 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 76 [2021-02-16 18:31:24,357 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-02-16 18:31:24,972 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-02-16 18:31:25,475 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-02-16 18:31:26,052 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-02-16 18:31:26,590 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-02-16 18:31:27,278 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-02-16 18:31:28,066 WARN L202 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-02-16 18:31:28,695 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 87 [2021-02-16 18:31:29,420 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-02-16 18:31:30,048 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-02-16 18:31:31,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:31:31,007 INFO L93 Difference]: Finished difference Result 3745 states and 7678 transitions. [2021-02-16 18:31:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-02-16 18:31:31,008 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:31:31,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:31:31,019 INFO L225 Difference]: With dead ends: 3745 [2021-02-16 18:31:31,019 INFO L226 Difference]: Without dead ends: 3745 [2021-02-16 18:31:31,021 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1622 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=2820, Invalid=6882, Unknown=0, NotChecked=0, Total=9702 [2021-02-16 18:31:31,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3745 states. [2021-02-16 18:31:31,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3745 to 2850. [2021-02-16 18:31:31,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2847 states have (on average 2.0516332982086407) internal successors, (5841), 2849 states have internal predecessors, (5841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 5841 transitions. [2021-02-16 18:31:31,148 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 5841 transitions. Word has length 82 [2021-02-16 18:31:31,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:31:31,149 INFO L480 AbstractCegarLoop]: Abstraction has 2850 states and 5841 transitions. [2021-02-16 18:31:31,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 5841 transitions. [2021-02-16 18:31:31,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:31:31,158 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:31:31,158 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:31:31,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-16 18:31:31,158 INFO L428 AbstractCegarLoop]: === Iteration 13 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:31:31,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:31:31,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1190350300, now seen corresponding path program 10 times [2021-02-16 18:31:31,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:31:31,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249547956] [2021-02-16 18:31:31,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:31:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:31:31,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:31,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:31:31,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:31:31,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:31:31,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:31:31,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:31:31,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:31:31,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:31:31,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:31,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:31:31,750 WARN L141 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-02-16 18:31:31,751 WARN L147 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size 47 [2021-02-16 18:31:31,824 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:31:31,826 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:31:31,917 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:31:31,919 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:31:32,011 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:31:32,012 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:31:32,123 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:31:32,124 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:31:32,231 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:31:32,233 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:31:32,339 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:31:32,340 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:31:32,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:32,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:31:32,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:32,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:31:32,494 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:31:32,495 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:31:32,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:32,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:31:32,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249547956] [2021-02-16 18:31:32,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:31:32,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:31:32,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196188665] [2021-02-16 18:31:32,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:31:32,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:31:32,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:31:32,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:31:32,605 INFO L87 Difference]: Start difference. First operand 2850 states and 5841 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:33,592 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-02-16 18:31:33,799 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:31:34,097 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2021-02-16 18:31:34,333 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:31:34,749 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:31:35,103 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:31:35,667 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:31:36,149 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-02-16 18:31:36,774 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-02-16 18:31:37,212 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-02-16 18:31:37,626 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2021-02-16 18:31:38,059 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-02-16 18:31:38,519 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2021-02-16 18:31:38,995 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2021-02-16 18:31:39,434 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-02-16 18:31:39,970 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2021-02-16 18:31:40,371 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 73 [2021-02-16 18:31:40,867 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2021-02-16 18:31:41,313 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:31:41,826 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 82 [2021-02-16 18:31:42,324 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2021-02-16 18:31:42,507 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:31:42,788 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:31:43,254 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-02-16 18:31:43,665 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:31:43,859 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:31:44,293 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2021-02-16 18:31:44,638 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:31:44,813 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:31:45,178 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:31:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:31:46,321 INFO L93 Difference]: Finished difference Result 3550 states and 7279 transitions. [2021-02-16 18:31:46,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-16 18:31:46,322 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:31:46,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:31:46,333 INFO L225 Difference]: With dead ends: 3550 [2021-02-16 18:31:46,333 INFO L226 Difference]: Without dead ends: 3550 [2021-02-16 18:31:46,334 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=1220, Invalid=3610, Unknown=0, NotChecked=0, Total=4830 [2021-02-16 18:31:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2021-02-16 18:31:46,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 2971. [2021-02-16 18:31:46,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2968 states have (on average 2.0539083557951483) internal successors, (6096), 2970 states have internal predecessors, (6096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 6096 transitions. [2021-02-16 18:31:46,420 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 6096 transitions. Word has length 82 [2021-02-16 18:31:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:31:46,421 INFO L480 AbstractCegarLoop]: Abstraction has 2971 states and 6096 transitions. [2021-02-16 18:31:46,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 6096 transitions. [2021-02-16 18:31:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:31:46,427 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:31:46,427 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:31:46,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-16 18:31:46,427 INFO L428 AbstractCegarLoop]: === Iteration 14 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:31:46,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:31:46,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1999708774, now seen corresponding path program 11 times [2021-02-16 18:31:46,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:31:46,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931856285] [2021-02-16 18:31:46,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:31:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:31:46,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:46,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:31:46,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:31:46,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:31:46,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:31:46,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:31:46,651 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:31:46,653 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:31:46,678 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:31:46,679 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:31:46,700 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:31:46,702 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:31:46,732 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:31:46,732 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:31:46,767 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:31:46,768 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:31:46,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:46,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:46,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:46,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:47,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:47,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:47,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:47,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:31:47,181 WARN L141 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-02-16 18:31:47,182 WARN L147 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size 44 [2021-02-16 18:31:47,267 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:31:47,268 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:31:47,356 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:31:47,357 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:31:47,454 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:31:47,455 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:31:47,503 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:31:47,505 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:31:47,606 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:31:47,607 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:31:47,658 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:31:47,688 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:31:47,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:47,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:31:47,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:47,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:31:47,854 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:31:47,854 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:31:47,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:47,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:47,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:47,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:47,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:31:47,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:31:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:31:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931856285] [2021-02-16 18:31:47,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:31:47,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:31:47,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446412904] [2021-02-16 18:31:47,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:31:47,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:31:47,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:31:47,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:31:47,964 INFO L87 Difference]: Start difference. First operand 2971 states and 6096 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:31:48,947 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:31:49,205 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-02-16 18:31:49,425 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:31:49,671 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:31:49,925 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2021-02-16 18:31:50,186 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:31:50,450 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:31:50,718 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2021-02-16 18:31:50,976 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-02-16 18:31:51,273 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:31:51,578 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2021-02-16 18:31:51,856 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-02-16 18:31:52,160 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2021-02-16 18:31:52,486 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-16 18:31:52,799 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-02-16 18:31:53,078 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-02-16 18:31:53,367 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-02-16 18:31:53,679 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-02-16 18:31:54,009 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-02-16 18:31:54,351 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-02-16 18:31:54,641 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2021-02-16 18:31:54,974 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-02-16 18:31:55,250 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-02-16 18:31:55,612 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:31:56,077 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-02-16 18:31:56,444 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:31:56,789 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:31:57,186 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2021-02-16 18:31:57,666 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-02-16 18:31:58,012 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:31:58,400 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2021-02-16 18:31:58,862 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:31:59,185 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-02-16 18:31:59,597 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-02-16 18:32:00,059 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-02-16 18:32:00,490 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-02-16 18:32:00,869 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-02-16 18:32:01,320 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-02-16 18:32:01,802 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-02-16 18:32:02,276 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2021-02-16 18:32:02,782 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2021-02-16 18:32:03,270 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 72 [2021-02-16 18:32:03,756 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-02-16 18:32:04,204 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-02-16 18:32:04,631 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-02-16 18:32:05,171 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-02-16 18:32:05,657 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-02-16 18:32:06,167 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2021-02-16 18:32:06,683 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-02-16 18:32:07,219 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2021-02-16 18:32:07,823 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-02-16 18:32:08,401 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-02-16 18:32:09,017 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-02-16 18:32:09,543 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-02-16 18:32:10,108 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-02-16 18:32:10,612 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-02-16 18:32:11,216 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-02-16 18:32:11,764 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 84 [2021-02-16 18:32:12,456 WARN L202 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2021-02-16 18:32:13,230 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 89 [2021-02-16 18:32:13,888 WARN L202 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2021-02-16 18:32:14,611 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2021-02-16 18:32:15,272 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 88 [2021-02-16 18:32:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:32:16,093 INFO L93 Difference]: Finished difference Result 3643 states and 7474 transitions. [2021-02-16 18:32:16,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-02-16 18:32:16,094 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:32:16,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:32:16,108 INFO L225 Difference]: With dead ends: 3643 [2021-02-16 18:32:16,108 INFO L226 Difference]: Without dead ends: 3643 [2021-02-16 18:32:16,110 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1663 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=2864, Invalid=7036, Unknown=0, NotChecked=0, Total=9900 [2021-02-16 18:32:16,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2021-02-16 18:32:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 2868. [2021-02-16 18:32:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2868 states, 2865 states have (on average 2.0523560209424083) internal successors, (5880), 2867 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:32:16,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2868 states to 2868 states and 5880 transitions. [2021-02-16 18:32:16,208 INFO L78 Accepts]: Start accepts. Automaton has 2868 states and 5880 transitions. Word has length 82 [2021-02-16 18:32:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:32:16,208 INFO L480 AbstractCegarLoop]: Abstraction has 2868 states and 5880 transitions. [2021-02-16 18:32:16,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:32:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2868 states and 5880 transitions. [2021-02-16 18:32:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:32:16,216 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:32:16,217 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:32:16,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-16 18:32:16,217 INFO L428 AbstractCegarLoop]: === Iteration 15 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:32:16,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:32:16,218 INFO L82 PathProgramCache]: Analyzing trace with hash 985485280, now seen corresponding path program 12 times [2021-02-16 18:32:16,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:32:16,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704600333] [2021-02-16 18:32:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:32:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:32:16,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:32:16,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:32:16,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:32:16,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:32:16,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:32:16,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:32:16,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-16 18:32:16,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:32:16,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:32:16,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:32:16,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:32:16,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:32:16,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:32:16,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:32:16,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:16,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:32:17,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:17,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:32:17,151 WARN L141 QuantifierPusher]: treesize reduction 15, result has 77.3 percent of original size [2021-02-16 18:32:17,152 WARN L147 QuantifierPusher]: treesize reduction 15, result has 77.3 percent of original size 51 [2021-02-16 18:32:17,254 WARN L141 QuantifierPusher]: treesize reduction 305, result has 22.4 percent of original size [2021-02-16 18:32:17,258 WARN L147 QuantifierPusher]: treesize reduction 305, result has 22.4 percent of original size 88 [2021-02-16 18:32:17,387 WARN L141 QuantifierPusher]: treesize reduction 301, result has 21.8 percent of original size [2021-02-16 18:32:17,388 WARN L147 QuantifierPusher]: treesize reduction 301, result has 21.8 percent of original size 84 [2021-02-16 18:32:17,447 WARN L141 QuantifierPusher]: treesize reduction 15, result has 81.3 percent of original size [2021-02-16 18:32:17,448 WARN L147 QuantifierPusher]: treesize reduction 15, result has 81.3 percent of original size 65 [2021-02-16 18:32:17,573 WARN L141 QuantifierPusher]: treesize reduction 61, result has 46.0 percent of original size [2021-02-16 18:32:17,575 WARN L147 QuantifierPusher]: treesize reduction 61, result has 46.0 percent of original size 52 [2021-02-16 18:32:17,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:17,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-16 18:32:17,767 WARN L141 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-02-16 18:32:17,768 WARN L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-02-16 18:32:17,831 WARN L141 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-02-16 18:32:17,832 WARN L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-02-16 18:32:17,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:17,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-16 18:32:17,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:17,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:32:18,021 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:32:18,023 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:32:18,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:18,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:32:18,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:18,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:32:18,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:18,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:32:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:32:18,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704600333] [2021-02-16 18:32:18,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:32:18,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:32:18,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476400140] [2021-02-16 18:32:18,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:32:18,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:32:18,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:32:18,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=625, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:32:18,139 INFO L87 Difference]: Start difference. First operand 2868 states and 5880 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:32:19,268 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2021-02-16 18:32:19,534 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-02-16 18:32:19,755 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2021-02-16 18:32:20,015 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2021-02-16 18:32:20,290 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2021-02-16 18:32:20,544 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2021-02-16 18:32:20,840 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2021-02-16 18:32:21,147 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2021-02-16 18:32:21,426 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-02-16 18:32:21,735 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2021-02-16 18:32:22,049 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2021-02-16 18:32:22,334 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-02-16 18:32:22,667 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2021-02-16 18:32:22,974 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-02-16 18:32:23,284 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-02-16 18:32:23,561 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2021-02-16 18:32:23,855 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:32:24,178 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-02-16 18:32:24,517 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 60 [2021-02-16 18:32:24,895 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 60 [2021-02-16 18:32:25,190 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2021-02-16 18:32:25,525 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-02-16 18:32:25,800 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-02-16 18:32:26,177 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-02-16 18:32:26,670 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2021-02-16 18:32:27,057 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-02-16 18:32:27,399 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-02-16 18:32:27,811 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 64 [2021-02-16 18:32:28,321 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-02-16 18:32:28,685 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-02-16 18:32:29,112 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 64 [2021-02-16 18:32:29,591 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-02-16 18:32:29,923 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-02-16 18:32:30,359 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-02-16 18:32:30,773 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-02-16 18:32:31,249 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2021-02-16 18:32:31,692 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-02-16 18:32:32,074 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-02-16 18:32:32,545 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 70 [2021-02-16 18:32:33,072 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-02-16 18:32:33,564 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2021-02-16 18:32:34,084 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-02-16 18:32:34,624 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2021-02-16 18:32:35,141 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2021-02-16 18:32:35,617 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 72 [2021-02-16 18:32:36,079 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-02-16 18:32:36,642 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-02-16 18:32:37,175 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-02-16 18:32:37,706 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 73 [2021-02-16 18:32:38,234 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-02-16 18:32:38,752 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-02-16 18:32:39,254 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-02-16 18:32:39,836 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2021-02-16 18:32:40,428 WARN L202 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-02-16 18:32:41,129 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-02-16 18:32:41,687 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2021-02-16 18:32:42,289 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-02-16 18:32:42,821 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 82 [2021-02-16 18:32:43,469 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 80 [2021-02-16 18:32:44,048 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-02-16 18:32:44,754 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 88 [2021-02-16 18:32:45,529 WARN L202 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 91 [2021-02-16 18:32:46,298 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-02-16 18:32:47,061 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 85 [2021-02-16 18:32:47,863 WARN L202 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 90 [2021-02-16 18:32:48,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:32:48,604 INFO L93 Difference]: Finished difference Result 3253 states and 6663 transitions. [2021-02-16 18:32:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-02-16 18:32:48,605 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:32:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:32:48,613 INFO L225 Difference]: With dead ends: 3253 [2021-02-16 18:32:48,613 INFO L226 Difference]: Without dead ends: 3253 [2021-02-16 18:32:48,615 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1790 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=3021, Invalid=7485, Unknown=0, NotChecked=0, Total=10506 [2021-02-16 18:32:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2021-02-16 18:32:48,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 2768. [2021-02-16 18:32:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 2765 states have (on average 2.052079566003617) internal successors, (5674), 2767 states have internal predecessors, (5674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:32:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 5674 transitions. [2021-02-16 18:32:48,693 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 5674 transitions. Word has length 82 [2021-02-16 18:32:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:32:48,694 INFO L480 AbstractCegarLoop]: Abstraction has 2768 states and 5674 transitions. [2021-02-16 18:32:48,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:32:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 5674 transitions. [2021-02-16 18:32:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:32:48,700 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:32:48,700 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:32:48,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-16 18:32:48,700 INFO L428 AbstractCegarLoop]: === Iteration 16 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:32:48,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:32:48,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1579024460, now seen corresponding path program 13 times [2021-02-16 18:32:48,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:32:48,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749147648] [2021-02-16 18:32:48,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:32:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:32:48,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:32:48,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:32:48,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:32:48,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:32:48,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:32:48,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:32:48,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:32:48,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:32:48,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:48,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:32:49,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:49,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:32:49,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:49,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:32:49,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:49,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:32:49,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:49,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:32:49,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:49,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:32:49,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:49,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:32:49,282 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:32:49,283 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:32:49,340 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:32:49,341 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:32:49,396 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:32:49,397 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:32:49,455 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:32:49,456 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:32:49,564 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:32:49,567 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:32:49,685 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:32:49,686 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:32:49,800 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:32:49,801 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:32:49,915 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:32:49,916 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:32:50,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:50,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:32:50,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:50,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:32:50,111 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:32:50,118 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:32:50,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:32:50,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:32:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:32:50,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749147648] [2021-02-16 18:32:50,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:32:50,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:32:50,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748557314] [2021-02-16 18:32:50,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:32:50,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:32:50,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:32:50,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:32:50,251 INFO L87 Difference]: Start difference. First operand 2768 states and 5674 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:32:51,258 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-02-16 18:32:51,485 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:32:51,712 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:32:52,058 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:32:52,449 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:32:52,827 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:32:53,390 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:32:53,761 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:32:54,158 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:32:54,608 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:32:55,053 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:32:55,393 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:32:55,825 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:32:56,186 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:32:56,630 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:32:57,014 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:32:57,443 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:32:57,860 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:32:58,290 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:32:58,798 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:32:59,229 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:32:59,736 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:33:00,188 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2021-02-16 18:33:00,778 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2021-02-16 18:33:01,332 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-02-16 18:33:01,916 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:33:02,435 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:33:02,668 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-02-16 18:33:03,223 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:33:03,472 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-02-16 18:33:03,671 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-02-16 18:33:04,301 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:33:04,571 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-02-16 18:33:04,779 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-02-16 18:33:05,189 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-02-16 18:33:05,422 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-02-16 18:33:05,922 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-02-16 18:33:07,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:33:07,060 INFO L93 Difference]: Finished difference Result 4828 states and 9901 transitions. [2021-02-16 18:33:07,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:33:07,061 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:33:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:33:07,072 INFO L225 Difference]: With dead ends: 4828 [2021-02-16 18:33:07,072 INFO L226 Difference]: Without dead ends: 4828 [2021-02-16 18:33:07,073 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1499, Invalid=4201, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:33:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4828 states. [2021-02-16 18:33:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4828 to 2898. [2021-02-16 18:33:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2898 states, 2895 states have (on average 2.0500863557858375) internal successors, (5935), 2897 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2898 states to 2898 states and 5935 transitions. [2021-02-16 18:33:07,180 INFO L78 Accepts]: Start accepts. Automaton has 2898 states and 5935 transitions. Word has length 82 [2021-02-16 18:33:07,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:33:07,181 INFO L480 AbstractCegarLoop]: Abstraction has 2898 states and 5935 transitions. [2021-02-16 18:33:07,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2898 states and 5935 transitions. [2021-02-16 18:33:07,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:33:07,188 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:33:07,188 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:33:07,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-16 18:33:07,189 INFO L428 AbstractCegarLoop]: === Iteration 17 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:33:07,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:33:07,190 INFO L82 PathProgramCache]: Analyzing trace with hash -159179818, now seen corresponding path program 14 times [2021-02-16 18:33:07,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:33:07,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762113752] [2021-02-16 18:33:07,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:33:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:33:07,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:07,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:33:07,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:33:07,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:33:07,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:33:07,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:33:07,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:33:07,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:33:07,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:07,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:07,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:07,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:07,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:07,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:07,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:07,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:07,802 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:33:07,803 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:33:07,858 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:33:07,859 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:33:07,922 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:33:07,923 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:33:08,024 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:33:08,025 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:33:08,123 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:33:08,127 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:33:08,255 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:33:08,256 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:33:08,377 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:33:08,379 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:33:08,487 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:33:08,487 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:33:08,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:08,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:33:08,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:08,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:33:08,652 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:33:08,654 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:33:08,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:08,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:33:08,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762113752] [2021-02-16 18:33:08,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:33:08,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:33:08,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386628887] [2021-02-16 18:33:08,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:33:08,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:33:08,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:33:08,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:33:08,771 INFO L87 Difference]: Start difference. First operand 2898 states and 5935 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:09,809 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-02-16 18:33:10,025 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:33:10,260 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:33:10,602 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:33:11,029 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:33:11,407 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:33:12,020 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:33:12,430 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:33:12,853 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:33:13,320 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:33:13,662 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:33:14,085 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:33:14,458 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:33:14,900 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:33:15,269 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:33:15,676 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:33:16,119 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:33:16,526 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:33:16,977 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:33:17,424 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:33:17,866 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:33:18,283 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:33:18,770 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:33:19,244 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:33:19,704 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:33:20,164 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:33:20,627 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:33:21,178 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:33:21,685 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:33:22,256 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:33:22,751 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:33:23,438 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:33:23,978 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:33:24,174 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:33:24,775 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:33:24,972 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:33:25,122 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-02-16 18:33:25,728 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:33:25,961 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:33:26,112 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:33:26,498 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:33:26,689 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:33:27,158 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:33:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:33:28,265 INFO L93 Difference]: Finished difference Result 5091 states and 10452 transitions. [2021-02-16 18:33:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-02-16 18:33:28,266 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:33:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:33:28,273 INFO L225 Difference]: With dead ends: 5091 [2021-02-16 18:33:28,274 INFO L226 Difference]: Without dead ends: 5091 [2021-02-16 18:33:28,275 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=1740, Invalid=4902, Unknown=0, NotChecked=0, Total=6642 [2021-02-16 18:33:28,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5091 states. [2021-02-16 18:33:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5091 to 2909. [2021-02-16 18:33:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2906 states have (on average 2.0502408809359944) internal successors, (5958), 2908 states have internal predecessors, (5958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 5958 transitions. [2021-02-16 18:33:28,373 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 5958 transitions. Word has length 82 [2021-02-16 18:33:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:33:28,374 INFO L480 AbstractCegarLoop]: Abstraction has 2909 states and 5958 transitions. [2021-02-16 18:33:28,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 5958 transitions. [2021-02-16 18:33:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:33:28,380 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:33:28,381 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:33:28,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-16 18:33:28,381 INFO L428 AbstractCegarLoop]: === Iteration 18 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:33:28,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:33:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash 650178656, now seen corresponding path program 15 times [2021-02-16 18:33:28,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:33:28,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322076694] [2021-02-16 18:33:28,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:33:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:33:28,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:28,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:33:28,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:33:28,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:33:28,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:33:28,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:33:28,684 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:33:28,685 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:33:28,713 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:33:28,713 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:33:28,741 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:33:28,743 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:33:28,777 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:33:28,778 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:33:28,811 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:33:28,812 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:33:28,854 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:33:28,855 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:33:28,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:33:28,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:28,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:33:29,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:29,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:33:29,143 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:33:29,144 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:33:29,229 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:33:29,230 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:33:29,325 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:33:29,326 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:33:29,423 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:33:29,425 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:33:29,543 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:33:29,544 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:33:29,603 WARN L141 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size [2021-02-16 18:33:29,605 WARN L147 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size 53 [2021-02-16 18:33:29,743 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:33:29,745 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:33:29,802 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:33:29,804 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:33:29,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:29,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:33:29,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:29,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:33:29,984 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:33:29,985 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:33:30,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:30,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:30,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:30,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:30,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:30,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:33:30,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322076694] [2021-02-16 18:33:30,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:33:30,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:33:30,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795224262] [2021-02-16 18:33:30,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:33:30,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:33:30,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:33:30,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:33:30,103 INFO L87 Difference]: Start difference. First operand 2909 states and 5958 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:31,242 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:33:31,458 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:33:31,780 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:33:32,175 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:33:32,439 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:33:32,814 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:33:33,100 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-02-16 18:33:33,498 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-02-16 18:33:33,891 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-02-16 18:33:34,221 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-16 18:33:34,589 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-02-16 18:33:34,950 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-02-16 18:33:35,270 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-02-16 18:33:35,671 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-02-16 18:33:36,049 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-02-16 18:33:36,349 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-02-16 18:33:36,786 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-02-16 18:33:37,182 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:33:37,527 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:33:38,032 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-02-16 18:33:38,425 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-02-16 18:33:38,781 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:33:39,271 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-16 18:33:39,686 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-02-16 18:33:40,045 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-02-16 18:33:40,476 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-02-16 18:33:40,932 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-02-16 18:33:41,367 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-02-16 18:33:41,759 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-02-16 18:33:42,224 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-02-16 18:33:42,713 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2021-02-16 18:33:43,205 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-02-16 18:33:43,749 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-02-16 18:33:44,270 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-02-16 18:33:44,728 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-02-16 18:33:45,195 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-16 18:33:45,741 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-02-16 18:33:46,261 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 76 [2021-02-16 18:33:46,768 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-02-16 18:33:47,288 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-02-16 18:33:47,783 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-02-16 18:33:48,348 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-02-16 18:33:48,863 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-02-16 18:33:49,442 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 76 [2021-02-16 18:33:49,941 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-02-16 18:33:50,483 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-02-16 18:33:50,944 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-02-16 18:33:51,493 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-02-16 18:33:52,034 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-02-16 18:33:52,760 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-02-16 18:33:53,570 WARN L202 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-02-16 18:33:54,245 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 87 [2021-02-16 18:33:54,994 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-02-16 18:33:55,673 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-02-16 18:33:56,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:33:56,719 INFO L93 Difference]: Finished difference Result 4845 states and 9936 transitions. [2021-02-16 18:33:56,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-02-16 18:33:56,720 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:33:56,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:33:56,730 INFO L225 Difference]: With dead ends: 4845 [2021-02-16 18:33:56,730 INFO L226 Difference]: Without dead ends: 4845 [2021-02-16 18:33:56,732 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=2428, Invalid=5762, Unknown=0, NotChecked=0, Total=8190 [2021-02-16 18:33:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2021-02-16 18:33:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 3136. [2021-02-16 18:33:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3133 states have (on average 2.0510692626875198) internal successors, (6426), 3135 states have internal predecessors, (6426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 6426 transitions. [2021-02-16 18:33:56,837 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 6426 transitions. Word has length 82 [2021-02-16 18:33:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:33:56,838 INFO L480 AbstractCegarLoop]: Abstraction has 3136 states and 6426 transitions. [2021-02-16 18:33:56,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 6426 transitions. [2021-02-16 18:33:56,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:33:56,847 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:33:56,847 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:33:56,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-16 18:33:56,847 INFO L428 AbstractCegarLoop]: === Iteration 19 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:33:56,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:33:56,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1273623482, now seen corresponding path program 16 times [2021-02-16 18:33:56,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:33:56,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487992936] [2021-02-16 18:33:56,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:33:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:33:56,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:56,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:56,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:56,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:33:56,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:56,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:33:56,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:56,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:33:57,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:33:57,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:33:57,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:33:57,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:33:57,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:57,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:33:57,520 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:33:57,521 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:33:57,612 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:33:57,613 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:33:57,716 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:33:57,718 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:33:57,820 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:33:57,822 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:33:57,947 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:33:57,948 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:33:58,073 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:33:58,075 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:33:58,187 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:33:58,188 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:33:58,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:58,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:33:58,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:58,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:33:58,367 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:33:58,368 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:33:58,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:33:58,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:33:58,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:33:58,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487992936] [2021-02-16 18:33:58,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:33:58,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:33:58,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875493148] [2021-02-16 18:33:58,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:33:58,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:33:58,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:33:58,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:33:58,483 INFO L87 Difference]: Start difference. First operand 3136 states and 6426 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:33:59,710 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:33:59,942 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:34:00,284 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:34:00,718 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:34:01,105 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:34:01,703 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:34:02,299 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:34:02,753 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:34:03,269 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:34:03,645 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:34:04,137 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:34:04,567 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:34:05,052 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:34:05,452 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:34:05,914 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:34:06,387 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:34:06,773 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:34:07,266 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:34:07,746 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:34:08,173 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:34:08,763 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:34:09,208 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:34:09,794 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:34:10,252 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:34:10,756 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:34:11,333 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:34:11,537 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:34:11,838 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:34:12,377 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:34:12,533 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-02-16 18:34:12,851 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:34:13,070 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:34:13,572 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:34:13,975 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:34:14,173 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:34:14,565 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:34:14,932 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-02-16 18:34:15,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:34:15,784 INFO L93 Difference]: Finished difference Result 5095 states and 10465 transitions. [2021-02-16 18:34:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:34:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:34:15,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:34:15,789 INFO L225 Difference]: With dead ends: 5095 [2021-02-16 18:34:15,789 INFO L226 Difference]: Without dead ends: 5095 [2021-02-16 18:34:15,790 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=1478, Invalid=4222, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:34:15,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2021-02-16 18:34:15,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 3184. [2021-02-16 18:34:15,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3181 states have (on average 2.050927381326627) internal successors, (6524), 3183 states have internal predecessors, (6524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 6524 transitions. [2021-02-16 18:34:15,897 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 6524 transitions. Word has length 82 [2021-02-16 18:34:15,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:34:15,897 INFO L480 AbstractCegarLoop]: Abstraction has 3184 states and 6524 transitions. [2021-02-16 18:34:15,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 6524 transitions. [2021-02-16 18:34:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:34:15,906 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:34:15,906 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:34:15,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-16 18:34:15,907 INFO L428 AbstractCegarLoop]: === Iteration 20 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:34:15,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:34:15,907 INFO L82 PathProgramCache]: Analyzing trace with hash 2082981956, now seen corresponding path program 17 times [2021-02-16 18:34:15,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:34:15,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373743301] [2021-02-16 18:34:15,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:34:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:34:16,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:16,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:34:16,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:34:16,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:34:16,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:34:16,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:34:16,142 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:34:16,143 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:34:16,172 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:34:16,173 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:34:16,199 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:16,200 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:16,234 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:16,235 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:16,278 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:16,279 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:16,324 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:16,324 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:16,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:16,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:16,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:16,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:16,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:16,695 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:34:16,698 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:34:16,794 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:34:16,796 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:34:16,893 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:34:16,895 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:34:17,010 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:34:17,011 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:34:17,065 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:34:17,066 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:34:17,180 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:34:17,181 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:34:17,244 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:34:17,245 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:34:17,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:17,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:34:17,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:17,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:34:17,439 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:34:17,440 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:34:17,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:17,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:17,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:17,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:17,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:17,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:34:17,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373743301] [2021-02-16 18:34:17,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:34:17,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:34:17,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068264255] [2021-02-16 18:34:17,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:34:17,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:34:17,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:34:17,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:34:17,593 INFO L87 Difference]: Start difference. First operand 3184 states and 6524 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:18,839 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:34:19,071 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:34:19,400 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:34:19,813 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:34:20,089 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:34:20,487 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:34:20,759 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-02-16 18:34:21,144 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-02-16 18:34:21,508 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-02-16 18:34:21,851 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-16 18:34:22,216 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-02-16 18:34:22,578 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-02-16 18:34:22,920 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-02-16 18:34:23,242 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-02-16 18:34:23,636 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:34:24,005 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-02-16 18:34:24,314 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-02-16 18:34:24,752 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-02-16 18:34:25,180 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:34:25,520 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:34:26,028 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-02-16 18:34:26,425 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-02-16 18:34:26,795 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:34:27,310 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:34:27,742 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-02-16 18:34:28,107 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-02-16 18:34:28,580 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-02-16 18:34:29,030 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-02-16 18:34:29,503 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-02-16 18:34:29,902 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-02-16 18:34:30,336 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-02-16 18:34:30,806 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-02-16 18:34:31,280 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 72 [2021-02-16 18:34:31,827 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-02-16 18:34:32,308 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 74 [2021-02-16 18:34:32,739 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-02-16 18:34:33,156 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-02-16 18:34:33,667 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2021-02-16 18:34:34,102 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-02-16 18:34:34,536 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-02-16 18:34:34,974 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-02-16 18:34:35,444 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-02-16 18:34:35,942 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-02-16 18:34:36,438 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-02-16 18:34:37,040 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-02-16 18:34:37,555 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-02-16 18:34:38,102 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-02-16 18:34:38,562 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 80 [2021-02-16 18:34:39,108 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-02-16 18:34:39,595 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 84 [2021-02-16 18:34:40,225 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 86 [2021-02-16 18:34:40,878 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 89 [2021-02-16 18:34:41,429 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 87 [2021-02-16 18:34:42,054 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 83 [2021-02-16 18:34:42,636 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 88 [2021-02-16 18:34:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:34:43,475 INFO L93 Difference]: Finished difference Result 5041 states and 10342 transitions. [2021-02-16 18:34:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-02-16 18:34:43,476 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:34:43,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:34:43,480 INFO L225 Difference]: With dead ends: 5041 [2021-02-16 18:34:43,480 INFO L226 Difference]: Without dead ends: 5041 [2021-02-16 18:34:43,480 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=2477, Invalid=5895, Unknown=0, NotChecked=0, Total=8372 [2021-02-16 18:34:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5041 states. [2021-02-16 18:34:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5041 to 3142. [2021-02-16 18:34:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3139 states have (on average 2.050971647021344) internal successors, (6438), 3141 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) [2021-02-16 18:34:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 6438 transitions. [2021-02-16 18:34:43,541 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 6438 transitions. Word has length 82 [2021-02-16 18:34:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:34:43,541 INFO L480 AbstractCegarLoop]: Abstraction has 3142 states and 6438 transitions. [2021-02-16 18:34:43,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:43,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 6438 transitions. [2021-02-16 18:34:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:34:43,545 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:34:43,545 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:34:43,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-16 18:34:43,546 INFO L428 AbstractCegarLoop]: === Iteration 21 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:34:43,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:34:43,546 INFO L82 PathProgramCache]: Analyzing trace with hash -2120983948, now seen corresponding path program 18 times [2021-02-16 18:34:43,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:34:43,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908160074] [2021-02-16 18:34:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:34:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:34:43,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:43,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:34:43,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:34:43,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:34:43,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:34:43,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:34:43,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:34:43,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:34:43,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:43,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:34:43,956 WARN L141 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-02-16 18:34:43,956 WARN L147 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size 47 [2021-02-16 18:34:44,006 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:34:44,007 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:34:44,071 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:34:44,072 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:34:44,136 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:34:44,137 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:34:44,247 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:34:44,248 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:34:44,322 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:34:44,323 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:34:44,406 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:34:44,407 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:34:44,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:44,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:34:44,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:44,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:34:44,535 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:34:44,536 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:34:44,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:44,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:34:44,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908160074] [2021-02-16 18:34:44,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:34:44,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:34:44,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202790948] [2021-02-16 18:34:44,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:34:44,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:34:44,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:34:44,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:34:44,629 INFO L87 Difference]: Start difference. First operand 3142 states and 6438 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:45,548 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:34:45,734 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:34:45,997 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-02-16 18:34:46,326 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:34:46,624 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:34:47,067 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:34:47,444 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-02-16 18:34:47,975 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-02-16 18:34:48,412 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-02-16 18:34:48,903 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2021-02-16 18:34:49,367 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-02-16 18:34:49,809 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2021-02-16 18:34:50,264 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2021-02-16 18:34:50,710 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-02-16 18:34:51,230 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2021-02-16 18:34:51,583 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 73 [2021-02-16 18:34:52,046 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2021-02-16 18:34:52,427 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:34:52,872 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 82 [2021-02-16 18:34:53,287 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2021-02-16 18:34:53,653 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:34:54,121 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-02-16 18:34:54,278 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-02-16 18:34:54,560 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:34:54,769 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:34:55,245 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2021-02-16 18:34:55,602 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:34:55,778 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:34:56,133 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:34:57,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:34:57,153 INFO L93 Difference]: Finished difference Result 4807 states and 9865 transitions. [2021-02-16 18:34:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-16 18:34:57,154 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:34:57,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:34:57,158 INFO L225 Difference]: With dead ends: 4807 [2021-02-16 18:34:57,158 INFO L226 Difference]: Without dead ends: 4807 [2021-02-16 18:34:57,158 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1218, Invalid=3612, Unknown=0, NotChecked=0, Total=4830 [2021-02-16 18:34:57,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2021-02-16 18:34:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 3263. [2021-02-16 18:34:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 3260 states have (on average 2.0530674846625767) internal successors, (6693), 3262 states have internal predecessors, (6693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:57,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 6693 transitions. [2021-02-16 18:34:57,225 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 6693 transitions. Word has length 82 [2021-02-16 18:34:57,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:34:57,225 INFO L480 AbstractCegarLoop]: Abstraction has 3263 states and 6693 transitions. [2021-02-16 18:34:57,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 6693 transitions. [2021-02-16 18:34:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:34:57,231 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:34:57,231 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:34:57,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-16 18:34:57,231 INFO L428 AbstractCegarLoop]: === Iteration 22 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:34:57,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:34:57,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1311625474, now seen corresponding path program 19 times [2021-02-16 18:34:57,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:34:57,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293838895] [2021-02-16 18:34:57,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:34:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:34:57,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:57,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:34:57,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:34:57,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:34:57,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:34:57,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:34:57,430 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:34:57,432 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:34:57,467 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:34:57,469 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:34:57,492 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:57,492 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:57,515 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:57,516 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:57,544 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:57,544 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:57,571 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:34:57,572 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:34:57,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:57,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:57,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:57,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:57,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:34:57,878 WARN L141 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-02-16 18:34:57,878 WARN L147 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size 44 [2021-02-16 18:34:57,952 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:34:57,954 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:34:58,028 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:34:58,029 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:34:58,116 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:34:58,116 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:34:58,160 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:34:58,161 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:34:58,270 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:34:58,271 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:34:58,317 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:34:58,318 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:34:58,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:58,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:34:58,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:58,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:34:58,457 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:34:58,458 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:34:58,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:58,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:58,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:58,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:58,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:34:58,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:34:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:34:58,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293838895] [2021-02-16 18:34:58,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:34:58,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:34:58,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478235597] [2021-02-16 18:34:58,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:34:58,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:34:58,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:34:58,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:34:58,548 INFO L87 Difference]: Start difference. First operand 3263 states and 6693 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:34:59,661 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:34:59,932 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-16 18:35:00,231 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:35:00,444 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-16 18:35:00,738 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-16 18:35:00,966 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 55 [2021-02-16 18:35:01,267 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-02-16 18:35:01,570 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-02-16 18:35:01,852 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-16 18:35:02,155 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-02-16 18:35:02,441 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-02-16 18:35:02,731 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-02-16 18:35:02,986 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-02-16 18:35:03,311 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:35:03,607 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-02-16 18:35:03,863 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-02-16 18:35:04,318 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-02-16 18:35:04,726 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2021-02-16 18:35:05,138 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:35:05,520 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:35:06,054 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-02-16 18:35:06,468 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2021-02-16 18:35:06,869 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:35:07,378 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:35:07,837 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-02-16 18:35:08,215 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-02-16 18:35:08,687 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-02-16 18:35:09,161 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-02-16 18:35:09,635 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-02-16 18:35:10,054 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-02-16 18:35:10,579 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-02-16 18:35:11,095 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2021-02-16 18:35:11,625 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-02-16 18:35:12,201 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2021-02-16 18:35:12,665 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-02-16 18:35:13,058 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-02-16 18:35:13,447 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 68 [2021-02-16 18:35:13,959 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-02-16 18:35:14,402 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-02-16 18:35:14,879 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-02-16 18:35:15,352 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-02-16 18:35:15,830 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 76 [2021-02-16 18:35:16,418 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-02-16 18:35:16,978 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-02-16 18:35:17,660 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 76 [2021-02-16 18:35:18,263 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-02-16 18:35:18,872 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 73 [2021-02-16 18:35:19,369 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-02-16 18:35:19,907 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2021-02-16 18:35:20,428 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-02-16 18:35:21,037 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-02-16 18:35:21,724 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-02-16 18:35:22,356 WARN L202 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 87 [2021-02-16 18:35:23,056 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-02-16 18:35:23,772 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-02-16 18:35:24,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:35:24,888 INFO L93 Difference]: Finished difference Result 4879 states and 10018 transitions. [2021-02-16 18:35:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-02-16 18:35:24,889 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:35:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:35:24,894 INFO L225 Difference]: With dead ends: 4879 [2021-02-16 18:35:24,894 INFO L226 Difference]: Without dead ends: 4879 [2021-02-16 18:35:24,895 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1361 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=2521, Invalid=6035, Unknown=0, NotChecked=0, Total=8556 [2021-02-16 18:35:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2021-02-16 18:35:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 3160. [2021-02-16 18:35:24,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 3157 states have (on average 2.0516312955337344) internal successors, (6477), 3159 states have internal predecessors, (6477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:35:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 6477 transitions. [2021-02-16 18:35:24,959 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 6477 transitions. Word has length 82 [2021-02-16 18:35:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:35:24,960 INFO L480 AbstractCegarLoop]: Abstraction has 3160 states and 6477 transitions. [2021-02-16 18:35:24,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:35:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 6477 transitions. [2021-02-16 18:35:24,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:35:24,964 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:35:24,964 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:35:24,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-16 18:35:24,965 INFO L428 AbstractCegarLoop]: === Iteration 23 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:35:24,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:35:24,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1969118328, now seen corresponding path program 20 times [2021-02-16 18:35:24,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:35:24,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823342490] [2021-02-16 18:35:24,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:35:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:35:25,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:35:25,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:35:25,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:35:25,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:35:25,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:35:25,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:35:25,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-16 18:35:25,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:35:25,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:35:25,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:35:25,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:35:25,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:35:25,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:35:25,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:35:25,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:35:25,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:25,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:35:25,631 WARN L141 QuantifierPusher]: treesize reduction 15, result has 77.3 percent of original size [2021-02-16 18:35:25,632 WARN L147 QuantifierPusher]: treesize reduction 15, result has 77.3 percent of original size 51 [2021-02-16 18:35:25,719 WARN L141 QuantifierPusher]: treesize reduction 305, result has 22.4 percent of original size [2021-02-16 18:35:25,720 WARN L147 QuantifierPusher]: treesize reduction 305, result has 22.4 percent of original size 88 [2021-02-16 18:35:25,817 WARN L141 QuantifierPusher]: treesize reduction 301, result has 21.8 percent of original size [2021-02-16 18:35:25,817 WARN L147 QuantifierPusher]: treesize reduction 301, result has 21.8 percent of original size 84 [2021-02-16 18:35:25,863 WARN L141 QuantifierPusher]: treesize reduction 15, result has 81.3 percent of original size [2021-02-16 18:35:25,864 WARN L147 QuantifierPusher]: treesize reduction 15, result has 81.3 percent of original size 65 [2021-02-16 18:35:25,965 WARN L141 QuantifierPusher]: treesize reduction 61, result has 46.0 percent of original size [2021-02-16 18:35:25,968 WARN L147 QuantifierPusher]: treesize reduction 61, result has 46.0 percent of original size 52 [2021-02-16 18:35:26,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:26,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-16 18:35:26,109 WARN L141 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-02-16 18:35:26,109 WARN L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-02-16 18:35:26,162 WARN L141 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-02-16 18:35:26,163 WARN L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-02-16 18:35:26,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:26,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-16 18:35:26,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:26,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:35:26,336 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:35:26,337 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:35:26,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:26,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:35:26,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:26,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:35:26,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:26,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:35:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:35:26,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823342490] [2021-02-16 18:35:26,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:35:26,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:35:26,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583316073] [2021-02-16 18:35:26,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:35:26,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:35:26,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:35:26,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:35:26,453 INFO L87 Difference]: Start difference. First operand 3160 states and 6477 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:35:27,647 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2021-02-16 18:35:27,902 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-02-16 18:35:28,113 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2021-02-16 18:35:28,376 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2021-02-16 18:35:28,649 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-02-16 18:35:28,890 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2021-02-16 18:35:29,133 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2021-02-16 18:35:29,398 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-02-16 18:35:29,654 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-02-16 18:35:29,926 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2021-02-16 18:35:30,207 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-02-16 18:35:30,453 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-02-16 18:35:30,746 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2021-02-16 18:35:31,020 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-02-16 18:35:31,323 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-02-16 18:35:31,600 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:35:31,891 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-02-16 18:35:32,203 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-02-16 18:35:32,533 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 60 [2021-02-16 18:35:32,871 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 60 [2021-02-16 18:35:33,115 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2021-02-16 18:35:33,419 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-02-16 18:35:33,681 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-02-16 18:35:34,015 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-02-16 18:35:34,489 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2021-02-16 18:35:34,842 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-02-16 18:35:35,141 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-02-16 18:35:35,503 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 64 [2021-02-16 18:35:35,939 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-02-16 18:35:36,247 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-02-16 18:35:36,621 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 64 [2021-02-16 18:35:37,042 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-02-16 18:35:37,331 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-02-16 18:35:37,741 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 69 [2021-02-16 18:35:38,150 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-02-16 18:35:38,575 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2021-02-16 18:35:38,991 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-02-16 18:35:39,320 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-02-16 18:35:39,758 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2021-02-16 18:35:40,212 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-02-16 18:35:40,644 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-02-16 18:35:41,119 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 74 [2021-02-16 18:35:41,628 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 72 [2021-02-16 18:35:42,119 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 76 [2021-02-16 18:35:42,560 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 72 [2021-02-16 18:35:42,991 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 68 [2021-02-16 18:35:43,512 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-02-16 18:35:43,994 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2021-02-16 18:35:44,498 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2021-02-16 18:35:44,999 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2021-02-16 18:35:45,600 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-02-16 18:35:46,149 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2021-02-16 18:35:46,798 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 73 [2021-02-16 18:35:47,444 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 81 [2021-02-16 18:35:48,232 WARN L202 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 78 [2021-02-16 18:35:48,848 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-02-16 18:35:49,523 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 75 [2021-02-16 18:35:50,136 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 82 [2021-02-16 18:35:50,842 WARN L202 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-02-16 18:35:51,466 WARN L202 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 86 [2021-02-16 18:35:52,312 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 88 [2021-02-16 18:35:53,175 WARN L202 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 91 [2021-02-16 18:35:54,056 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 89 [2021-02-16 18:35:54,984 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 85 [2021-02-16 18:35:55,769 WARN L202 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 90 [2021-02-16 18:35:56,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:35:56,527 INFO L93 Difference]: Finished difference Result 3929 states and 8051 transitions. [2021-02-16 18:35:56,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-02-16 18:35:56,528 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:35:56,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:35:56,531 INFO L225 Difference]: With dead ends: 3929 [2021-02-16 18:35:56,531 INFO L226 Difference]: Without dead ends: 3929 [2021-02-16 18:35:56,532 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1816 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=3087, Invalid=7625, Unknown=0, NotChecked=0, Total=10712 [2021-02-16 18:35:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2021-02-16 18:35:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 2786. [2021-02-16 18:35:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2783 states have (on average 2.0517427236794825) internal successors, (5710), 2785 states have internal predecessors, (5710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:35:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 5710 transitions. [2021-02-16 18:35:56,582 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 5710 transitions. Word has length 82 [2021-02-16 18:35:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:35:56,582 INFO L480 AbstractCegarLoop]: Abstraction has 2786 states and 5710 transitions. [2021-02-16 18:35:56,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:35:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 5710 transitions. [2021-02-16 18:35:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:35:56,586 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:35:56,586 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:35:56,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-16 18:35:56,587 INFO L428 AbstractCegarLoop]: === Iteration 24 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:35:56,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:35:56,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1222376686, now seen corresponding path program 21 times [2021-02-16 18:35:56,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:35:56,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148532257] [2021-02-16 18:35:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:35:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:35:56,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:35:56,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:35:56,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:35:56,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:35:56,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:35:56,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:35:56,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:35:56,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:35:56,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:35:56,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:35:56,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:35:56,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:56,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:35:57,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:57,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:35:57,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:57,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:35:57,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:57,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:35:57,180 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:35:57,182 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:35:57,252 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:35:57,253 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:35:57,296 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:35:57,297 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:35:57,342 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:35:57,343 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:35:57,411 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:35:57,412 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:35:57,496 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:35:57,497 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:35:57,581 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:35:57,582 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:35:57,720 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:35:57,721 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:35:57,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:57,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:35:57,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:57,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:35:57,918 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:35:57,918 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:35:58,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:35:58,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:35:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:35:58,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148532257] [2021-02-16 18:35:58,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:35:58,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:35:58,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166744147] [2021-02-16 18:35:58,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:35:58,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:35:58,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:35:58,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:35:58,062 INFO L87 Difference]: Start difference. First operand 2786 states and 5710 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:35:59,303 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-02-16 18:35:59,555 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:35:59,828 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:36:00,138 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:36:00,690 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:36:01,094 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:36:01,763 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:36:02,226 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:36:02,719 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:36:03,249 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:36:03,743 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:36:04,129 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:36:04,617 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:36:04,999 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:36:05,532 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:36:05,971 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:36:06,452 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:36:06,914 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:36:07,395 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:36:07,999 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:36:08,474 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:36:09,020 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:36:09,505 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2021-02-16 18:36:10,180 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2021-02-16 18:36:10,829 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-02-16 18:36:11,437 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:36:11,996 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:36:12,278 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-02-16 18:36:12,952 WARN L202 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:36:13,239 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-02-16 18:36:13,464 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-02-16 18:36:14,162 WARN L202 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:36:14,476 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-02-16 18:36:14,707 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-02-16 18:36:15,200 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-02-16 18:36:15,467 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-02-16 18:36:16,079 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-02-16 18:36:16,520 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-02-16 18:36:17,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:36:17,544 INFO L93 Difference]: Finished difference Result 4724 states and 9693 transitions. [2021-02-16 18:36:17,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:36:17,546 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:36:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:36:17,551 INFO L225 Difference]: With dead ends: 4724 [2021-02-16 18:36:17,551 INFO L226 Difference]: Without dead ends: 4724 [2021-02-16 18:36:17,552 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=1499, Invalid=4201, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:36:17,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4724 states. [2021-02-16 18:36:17,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4724 to 2865. [2021-02-16 18:36:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2862 states have (on average 2.0506638714185885) internal successors, (5869), 2864 states have internal predecessors, (5869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:36:17,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 5869 transitions. [2021-02-16 18:36:17,651 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 5869 transitions. Word has length 82 [2021-02-16 18:36:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:36:17,652 INFO L480 AbstractCegarLoop]: Abstraction has 2865 states and 5869 transitions. [2021-02-16 18:36:17,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:36:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 5869 transitions. [2021-02-16 18:36:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:36:17,659 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:36:17,660 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:36:17,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-16 18:36:17,660 INFO L428 AbstractCegarLoop]: === Iteration 25 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:36:17,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:36:17,661 INFO L82 PathProgramCache]: Analyzing trace with hash 197467956, now seen corresponding path program 22 times [2021-02-16 18:36:17,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:36:17,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367218891] [2021-02-16 18:36:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:36:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:36:17,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:36:17,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:36:17,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:36:17,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:36:17,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:36:17,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:36:17,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:36:17,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:17,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:36:18,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:18,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:36:18,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:18,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:36:18,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:18,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:36:18,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:18,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:36:18,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:18,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:36:18,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:18,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:36:18,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:18,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:36:18,372 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:36:18,374 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:36:18,437 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:36:18,439 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:36:18,505 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:36:18,507 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:36:18,623 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:36:18,625 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:36:18,768 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:36:18,770 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:36:18,910 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:36:18,912 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:36:19,042 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:36:19,043 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:36:19,176 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:36:19,178 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:36:19,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:19,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:36:19,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:19,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:36:19,374 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:36:19,376 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:36:19,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:19,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:36:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:36:19,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367218891] [2021-02-16 18:36:19,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:36:19,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:36:19,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998720847] [2021-02-16 18:36:19,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:36:19,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:36:19,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:36:19,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:36:19,507 INFO L87 Difference]: Start difference. First operand 2865 states and 5869 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:36:20,684 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-02-16 18:36:20,940 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:36:21,216 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:36:21,531 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:36:22,093 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:36:22,503 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:36:23,152 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:36:23,597 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:36:24,047 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:36:24,521 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:36:24,914 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:36:25,368 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:36:25,739 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:36:26,181 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:36:26,540 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:36:26,936 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:36:27,373 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:36:27,786 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:36:28,257 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:36:28,752 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:36:29,253 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:36:29,741 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:36:30,267 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:36:30,766 WARN L202 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:36:31,262 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:36:31,791 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:36:32,311 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:36:32,893 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:36:33,453 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:36:34,086 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:36:34,651 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:36:35,397 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:36:36,011 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:36:36,240 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:36:36,909 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:36:37,163 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:36:37,337 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-02-16 18:36:38,051 WARN L202 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:36:38,305 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:36:38,482 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:36:38,926 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:36:39,142 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:36:39,698 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:36:40,123 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-02-16 18:36:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:36:41,035 INFO L93 Difference]: Finished difference Result 4987 states and 10244 transitions. [2021-02-16 18:36:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-02-16 18:36:41,037 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:36:41,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:36:41,042 INFO L225 Difference]: With dead ends: 4987 [2021-02-16 18:36:41,042 INFO L226 Difference]: Without dead ends: 4987 [2021-02-16 18:36:41,042 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=1740, Invalid=4902, Unknown=0, NotChecked=0, Total=6642 [2021-02-16 18:36:41,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2021-02-16 18:36:41,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 2876. [2021-02-16 18:36:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2873 states have (on average 2.050817960320223) internal successors, (5892), 2875 states have internal predecessors, (5892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:36:41,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 5892 transitions. [2021-02-16 18:36:41,117 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 5892 transitions. Word has length 82 [2021-02-16 18:36:41,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:36:41,118 INFO L480 AbstractCegarLoop]: Abstraction has 2876 states and 5892 transitions. [2021-02-16 18:36:41,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:36:41,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 5892 transitions. [2021-02-16 18:36:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:36:41,125 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:36:41,125 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:36:41,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-16 18:36:41,126 INFO L428 AbstractCegarLoop]: === Iteration 26 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:36:41,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:36:41,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1006826430, now seen corresponding path program 23 times [2021-02-16 18:36:41,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:36:41,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38204072] [2021-02-16 18:36:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:36:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:36:41,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:36:41,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:36:41,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:36:41,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:36:41,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:36:41,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:36:41,399 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:36:41,400 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:36:41,434 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:36:41,435 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:36:41,467 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:36:41,468 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:36:41,507 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:36:41,509 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:36:41,558 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:36:41,560 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:36:41,610 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:36:41,612 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:36:41,658 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:36:41,659 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:36:41,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:36:41,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:41,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:36:41,896 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:36:41,897 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:36:41,993 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:36:41,994 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:36:42,100 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:36:42,101 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:36:42,213 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:36:42,215 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:36:42,340 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:36:42,341 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:36:42,400 WARN L141 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size [2021-02-16 18:36:42,402 WARN L147 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size 53 [2021-02-16 18:36:42,540 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:36:42,541 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:36:42,610 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:36:42,612 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:36:42,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:42,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:36:42,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:42,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:36:42,823 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:36:42,824 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:36:42,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:42,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:36:42,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:42,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:36:42,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:36:42,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:36:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:36:42,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38204072] [2021-02-16 18:36:42,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:36:42,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:36:42,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197985507] [2021-02-16 18:36:42,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:36:42,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:36:42,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:36:42,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:36:42,960 INFO L87 Difference]: Start difference. First operand 2876 states and 5892 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:36:44,031 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2021-02-16 18:36:44,242 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:36:44,482 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:36:44,764 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-02-16 18:36:45,236 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2021-02-16 18:36:45,640 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-02-16 18:36:46,141 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-16 18:36:46,553 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:36:46,922 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-02-16 18:36:47,347 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-02-16 18:36:47,725 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-02-16 18:36:48,172 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-02-16 18:36:48,601 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-02-16 18:36:49,108 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2021-02-16 18:36:49,520 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-02-16 18:36:49,891 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-02-16 18:36:50,384 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-02-16 18:36:50,822 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-02-16 18:36:51,222 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2021-02-16 18:36:51,686 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:36:52,148 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-02-16 18:36:52,633 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-02-16 18:36:53,056 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-02-16 18:36:53,567 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:36:54,068 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2021-02-16 18:36:54,594 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2021-02-16 18:36:55,162 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2021-02-16 18:36:55,731 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-02-16 18:36:56,237 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-02-16 18:36:56,725 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-02-16 18:36:57,315 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-02-16 18:36:57,867 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 76 [2021-02-16 18:36:58,455 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2021-02-16 18:36:59,009 WARN L202 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-02-16 18:36:59,587 WARN L202 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2021-02-16 18:37:00,270 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-02-16 18:37:00,914 WARN L202 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 81 [2021-02-16 18:37:01,586 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-02-16 18:37:02,174 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-02-16 18:37:02,853 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-02-16 18:37:03,434 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-02-16 18:37:04,069 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-02-16 18:37:04,684 WARN L202 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 84 [2021-02-16 18:37:05,477 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2021-02-16 18:37:06,275 WARN L202 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 89 [2021-02-16 18:37:06,971 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2021-02-16 18:37:07,829 WARN L202 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2021-02-16 18:37:08,550 WARN L202 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 88 [2021-02-16 18:37:09,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:37:09,797 INFO L93 Difference]: Finished difference Result 4725 states and 9696 transitions. [2021-02-16 18:37:09,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-02-16 18:37:09,799 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:37:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:37:09,807 INFO L225 Difference]: With dead ends: 4725 [2021-02-16 18:37:09,807 INFO L226 Difference]: Without dead ends: 4725 [2021-02-16 18:37:09,807 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=2094, Invalid=4878, Unknown=0, NotChecked=0, Total=6972 [2021-02-16 18:37:09,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2021-02-16 18:37:09,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 3097. [2021-02-16 18:37:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3094 states have (on average 2.0517129928894633) internal successors, (6348), 3096 states have internal predecessors, (6348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 6348 transitions. [2021-02-16 18:37:09,895 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 6348 transitions. Word has length 82 [2021-02-16 18:37:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:37:09,895 INFO L480 AbstractCegarLoop]: Abstraction has 3097 states and 6348 transitions. [2021-02-16 18:37:09,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:09,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 6348 transitions. [2021-02-16 18:37:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:37:09,902 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:37:09,902 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:37:09,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-16 18:37:09,902 INFO L428 AbstractCegarLoop]: === Iteration 27 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:37:09,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:37:09,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1630271256, now seen corresponding path program 24 times [2021-02-16 18:37:09,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:37:09,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891852413] [2021-02-16 18:37:09,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:37:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:37:09,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:09,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:37:09,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:09,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:37:10,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:37:10,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:37:10,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:37:10,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:37:10,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:37:10,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:37:10,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:10,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:10,741 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:37:10,743 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:37:10,820 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:37:10,822 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:37:10,956 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:37:10,959 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:37:11,073 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:37:11,075 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:37:11,239 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:37:11,240 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:37:11,391 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:37:11,393 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:37:11,547 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:37:11,547 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:37:11,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:11,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:37:11,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:11,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:37:11,758 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:37:11,759 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:37:11,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:11,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:37:11,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:37:11,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891852413] [2021-02-16 18:37:11,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:37:11,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:37:11,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265142000] [2021-02-16 18:37:11,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:37:11,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:37:11,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:37:11,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:37:11,905 INFO L87 Difference]: Start difference. First operand 3097 states and 6348 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:13,116 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-02-16 18:37:13,373 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:37:13,644 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:37:13,962 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:37:14,513 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:37:14,949 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:37:15,674 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:37:16,437 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:37:16,990 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:37:17,569 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:37:18,001 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:37:18,542 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:37:19,011 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:37:19,553 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:37:19,986 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:37:20,505 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:37:21,025 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:37:21,455 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:37:22,031 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:37:22,554 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:37:23,026 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:37:23,691 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:37:24,176 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:37:24,819 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:37:25,384 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:37:26,032 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:37:26,668 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:37:26,900 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:37:27,258 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:37:27,837 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:37:28,010 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-02-16 18:37:28,393 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:37:28,622 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:37:29,165 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:37:29,614 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:37:29,833 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:37:30,297 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:37:31,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:37:31,413 INFO L93 Difference]: Finished difference Result 4985 states and 10245 transitions. [2021-02-16 18:37:31,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:37:31,414 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:37:31,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:37:31,418 INFO L225 Difference]: With dead ends: 4985 [2021-02-16 18:37:31,418 INFO L226 Difference]: Without dead ends: 4985 [2021-02-16 18:37:31,419 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=1478, Invalid=4222, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:37:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4985 states. [2021-02-16 18:37:31,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4985 to 3145. [2021-02-16 18:37:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3142 states have (on average 2.0515595162316997) internal successors, (6446), 3144 states have internal predecessors, (6446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:31,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 6446 transitions. [2021-02-16 18:37:31,473 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 6446 transitions. Word has length 82 [2021-02-16 18:37:31,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:37:31,473 INFO L480 AbstractCegarLoop]: Abstraction has 3145 states and 6446 transitions. [2021-02-16 18:37:31,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:31,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 6446 transitions. [2021-02-16 18:37:31,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:37:31,477 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:37:31,477 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:37:31,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-02-16 18:37:31,477 INFO L428 AbstractCegarLoop]: === Iteration 28 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:37:31,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:37:31,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1855337566, now seen corresponding path program 25 times [2021-02-16 18:37:31,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:37:31,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374927606] [2021-02-16 18:37:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:37:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:37:31,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:37:31,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:37:31,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:37:31,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:37:31,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:37:31,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:37:31,645 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:37:31,646 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:37:31,665 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:37:31,666 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:37:31,685 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:37:31,686 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:37:31,712 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:37:31,713 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:37:31,743 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:37:31,744 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:37:31,782 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:37:31,783 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:37:31,813 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:37:31,814 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:37:31,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:37:31,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:31,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:37:32,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:32,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:37:32,202 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:37:32,205 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:37:32,321 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:37:32,323 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:37:32,455 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:37:32,456 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:37:32,609 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:37:32,611 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:37:32,687 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:37:32,689 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:37:32,849 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:37:32,850 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:37:32,918 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:37:32,919 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:37:32,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:33,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:37:33,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:33,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:37:33,144 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:37:33,146 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:37:33,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:33,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:37:33,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:33,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:37:33,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:33,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:37:33,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:37:33,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374927606] [2021-02-16 18:37:33,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:37:33,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:37:33,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22103435] [2021-02-16 18:37:33,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:37:33,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:37:33,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:37:33,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:37:33,280 INFO L87 Difference]: Start difference. First operand 3145 states and 6446 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:34,476 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2021-02-16 18:37:34,700 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:37:34,963 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:37:35,274 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-02-16 18:37:35,797 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2021-02-16 18:37:36,207 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-02-16 18:37:36,720 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-16 18:37:37,147 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-02-16 18:37:37,518 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-02-16 18:37:37,878 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-02-16 18:37:38,307 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-02-16 18:37:38,715 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-02-16 18:37:39,174 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-02-16 18:37:39,607 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-02-16 18:37:40,147 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:37:40,577 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-02-16 18:37:40,995 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-02-16 18:37:41,509 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-02-16 18:37:41,963 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-02-16 18:37:42,355 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2021-02-16 18:37:42,838 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-02-16 18:37:43,320 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-02-16 18:37:43,842 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-02-16 18:37:44,268 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-02-16 18:37:44,791 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-02-16 18:37:45,315 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 74 [2021-02-16 18:37:45,864 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-02-16 18:37:46,430 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-02-16 18:37:46,995 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-02-16 18:37:47,517 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-02-16 18:37:48,003 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-02-16 18:37:48,612 WARN L202 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-02-16 18:37:49,169 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 76 [2021-02-16 18:37:49,746 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-02-16 18:37:50,240 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-02-16 18:37:50,715 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-02-16 18:37:51,228 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-02-16 18:37:51,767 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-02-16 18:37:52,380 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 76 [2021-02-16 18:37:52,892 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-02-16 18:37:53,389 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-02-16 18:37:53,838 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-02-16 18:37:54,342 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-02-16 18:37:54,844 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-02-16 18:37:55,482 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-02-16 18:37:56,186 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-02-16 18:37:56,840 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 87 [2021-02-16 18:37:57,555 WARN L202 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-02-16 18:37:58,169 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-02-16 18:37:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:37:59,095 INFO L93 Difference]: Finished difference Result 4921 states and 10102 transitions. [2021-02-16 18:37:59,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-02-16 18:37:59,096 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:37:59,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:37:59,100 INFO L225 Difference]: With dead ends: 4921 [2021-02-16 18:37:59,100 INFO L226 Difference]: Without dead ends: 4921 [2021-02-16 18:37:59,100 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=2143, Invalid=4997, Unknown=0, NotChecked=0, Total=7140 [2021-02-16 18:37:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4921 states. [2021-02-16 18:37:59,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4921 to 3103. [2021-02-16 18:37:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3100 states have (on average 2.0516129032258066) internal successors, (6360), 3102 states have internal predecessors, (6360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 6360 transitions. [2021-02-16 18:37:59,137 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 6360 transitions. Word has length 82 [2021-02-16 18:37:59,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:37:59,137 INFO L480 AbstractCegarLoop]: Abstraction has 3103 states and 6360 transitions. [2021-02-16 18:37:59,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:37:59,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 6360 transitions. [2021-02-16 18:37:59,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:37:59,141 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:37:59,141 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:37:59,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-02-16 18:37:59,142 INFO L428 AbstractCegarLoop]: === Iteration 29 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:37:59,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:37:59,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1764336174, now seen corresponding path program 26 times [2021-02-16 18:37:59,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:37:59,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958944565] [2021-02-16 18:37:59,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:37:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:37:59,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:37:59,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:37:59,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:37:59,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:37:59,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:37:59,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:37:59,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:37:59,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:37:59,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:37:59,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:37:59,612 WARN L141 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-02-16 18:37:59,613 WARN L147 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size 47 [2021-02-16 18:37:59,677 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:37:59,678 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:37:59,781 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:37:59,782 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:37:59,861 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:37:59,862 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:37:59,962 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:37:59,963 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:38:00,057 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:38:00,058 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:38:00,153 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:38:00,154 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:38:00,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:00,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:38:00,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:00,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:38:00,308 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:38:00,309 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:38:00,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:00,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:38:00,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958944565] [2021-02-16 18:38:00,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:38:00,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:38:00,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988853433] [2021-02-16 18:38:00,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:38:00,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:38:00,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:38:00,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:38:00,429 INFO L87 Difference]: Start difference. First operand 3103 states and 6360 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:38:01,473 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:38:01,671 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:38:01,893 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:38:02,286 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:38:02,617 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:38:03,120 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:38:03,564 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-02-16 18:38:04,154 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-02-16 18:38:04,605 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-02-16 18:38:05,023 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2021-02-16 18:38:05,455 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-02-16 18:38:05,879 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2021-02-16 18:38:06,295 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2021-02-16 18:38:06,682 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-02-16 18:38:07,184 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2021-02-16 18:38:07,577 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 73 [2021-02-16 18:38:08,021 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2021-02-16 18:38:08,417 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:38:08,953 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 82 [2021-02-16 18:38:09,534 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2021-02-16 18:38:09,751 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:38:10,066 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:38:10,580 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-02-16 18:38:10,730 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-02-16 18:38:10,999 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:38:11,223 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:38:11,709 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2021-02-16 18:38:12,076 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:38:12,268 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:38:12,636 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:38:13,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:38:13,769 INFO L93 Difference]: Finished difference Result 4697 states and 9645 transitions. [2021-02-16 18:38:13,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-02-16 18:38:13,771 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:38:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:38:13,774 INFO L225 Difference]: With dead ends: 4697 [2021-02-16 18:38:13,774 INFO L226 Difference]: Without dead ends: 4697 [2021-02-16 18:38:13,775 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=1218, Invalid=3612, Unknown=0, NotChecked=0, Total=4830 [2021-02-16 18:38:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2021-02-16 18:38:13,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 3224. [2021-02-16 18:38:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 3221 states have (on average 2.053710027941633) internal successors, (6615), 3223 states have internal predecessors, (6615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:38:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 6615 transitions. [2021-02-16 18:38:13,827 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 6615 transitions. Word has length 82 [2021-02-16 18:38:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:38:13,827 INFO L480 AbstractCegarLoop]: Abstraction has 3224 states and 6615 transitions. [2021-02-16 18:38:13,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:38:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 6615 transitions. [2021-02-16 18:38:13,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:38:13,835 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:38:13,835 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:38:13,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-02-16 18:38:13,836 INFO L428 AbstractCegarLoop]: === Iteration 30 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:38:13,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:38:13,837 INFO L82 PathProgramCache]: Analyzing trace with hash -954977700, now seen corresponding path program 27 times [2021-02-16 18:38:13,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:38:13,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780944252] [2021-02-16 18:38:13,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:38:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:38:13,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:13,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:13,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:13,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:38:13,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:13,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:38:13,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:13,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:38:13,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:13,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:38:14,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:14,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:38:14,049 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:38:14,050 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:38:14,069 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:38:14,069 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:38:14,088 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:38:14,089 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:38:14,114 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:38:14,115 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:38:14,142 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:38:14,142 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:38:14,174 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:38:14,175 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:38:14,207 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:38:14,208 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:38:14,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:14,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:38:14,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:14,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:38:14,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:14,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:38:14,474 WARN L141 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-02-16 18:38:14,478 WARN L147 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size 44 [2021-02-16 18:38:14,559 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:38:14,560 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:38:14,641 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:38:14,642 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:38:14,733 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:38:14,734 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:38:14,776 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:38:14,777 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:38:14,872 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:38:14,872 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:38:14,919 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:38:14,922 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:38:14,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:14,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:38:15,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:15,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:38:15,069 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:38:15,069 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:38:15,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:15,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:15,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:15,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:15,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:15,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:38:15,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780944252] [2021-02-16 18:38:15,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:38:15,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:38:15,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115315136] [2021-02-16 18:38:15,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:38:15,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:38:15,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:38:15,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:38:15,167 INFO L87 Difference]: Start difference. First operand 3224 states and 6615 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:38:16,329 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:38:16,550 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-02-16 18:38:16,947 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2021-02-16 18:38:17,252 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-02-16 18:38:17,627 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2021-02-16 18:38:17,948 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-02-16 18:38:18,233 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-02-16 18:38:18,520 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-02-16 18:38:18,848 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-02-16 18:38:19,161 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-02-16 18:38:19,509 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-02-16 18:38:19,838 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2021-02-16 18:38:20,166 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-02-16 18:38:20,559 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:38:20,896 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2021-02-16 18:38:21,239 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-02-16 18:38:21,757 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-02-16 18:38:22,226 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-02-16 18:38:22,667 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2021-02-16 18:38:23,156 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-02-16 18:38:23,645 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-02-16 18:38:24,160 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-02-16 18:38:24,604 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-02-16 18:38:25,150 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-02-16 18:38:25,674 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2021-02-16 18:38:26,189 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2021-02-16 18:38:26,733 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 72 [2021-02-16 18:38:27,304 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-02-16 18:38:27,838 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-02-16 18:38:28,337 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-02-16 18:38:28,963 WARN L202 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-02-16 18:38:29,455 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-02-16 18:38:29,927 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2021-02-16 18:38:30,438 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-02-16 18:38:30,952 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2021-02-16 18:38:31,521 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-02-16 18:38:32,036 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-02-16 18:38:32,570 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-02-16 18:38:33,040 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-02-16 18:38:33,561 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-02-16 18:38:34,036 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-02-16 18:38:34,580 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-02-16 18:38:35,072 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 84 [2021-02-16 18:38:35,736 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2021-02-16 18:38:36,422 WARN L202 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 89 [2021-02-16 18:38:37,021 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2021-02-16 18:38:37,714 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2021-02-16 18:38:38,286 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 88 [2021-02-16 18:38:39,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:38:39,140 INFO L93 Difference]: Finished difference Result 4759 states and 9778 transitions. [2021-02-16 18:38:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-16 18:38:39,141 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:38:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:38:39,145 INFO L225 Difference]: With dead ends: 4759 [2021-02-16 18:38:39,145 INFO L226 Difference]: Without dead ends: 4759 [2021-02-16 18:38:39,146 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=2187, Invalid=5123, Unknown=0, NotChecked=0, Total=7310 [2021-02-16 18:38:39,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2021-02-16 18:38:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 3121. [2021-02-16 18:38:39,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3118 states have (on average 2.0522771007055804) internal successors, (6399), 3120 states have internal predecessors, (6399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:38:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 6399 transitions. [2021-02-16 18:38:39,191 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 6399 transitions. Word has length 82 [2021-02-16 18:38:39,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:38:39,191 INFO L480 AbstractCegarLoop]: Abstraction has 3121 states and 6399 transitions. [2021-02-16 18:38:39,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:38:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 6399 transitions. [2021-02-16 18:38:39,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:38:39,195 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:38:39,196 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:38:39,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-02-16 18:38:39,196 INFO L428 AbstractCegarLoop]: === Iteration 31 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:38:39,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:38:39,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1969201194, now seen corresponding path program 28 times [2021-02-16 18:38:39,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:38:39,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942698473] [2021-02-16 18:38:39,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:38:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:38:39,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:39,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:38:39,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:38:39,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:38:39,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:38:39,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:38:39,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-16 18:38:39,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:38:39,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:38:39,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:38:39,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:38:39,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:38:39,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-16 18:38:39,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:39,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:38:40,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:40,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:38:40,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:40,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-16 18:38:40,293 WARN L141 QuantifierPusher]: treesize reduction 15, result has 77.3 percent of original size [2021-02-16 18:38:40,295 WARN L147 QuantifierPusher]: treesize reduction 15, result has 77.3 percent of original size 51 [2021-02-16 18:38:40,415 WARN L141 QuantifierPusher]: treesize reduction 305, result has 22.4 percent of original size [2021-02-16 18:38:40,417 WARN L147 QuantifierPusher]: treesize reduction 305, result has 22.4 percent of original size 88 [2021-02-16 18:38:40,562 WARN L141 QuantifierPusher]: treesize reduction 301, result has 21.8 percent of original size [2021-02-16 18:38:40,563 WARN L147 QuantifierPusher]: treesize reduction 301, result has 21.8 percent of original size 84 [2021-02-16 18:38:40,605 WARN L141 QuantifierPusher]: treesize reduction 15, result has 81.3 percent of original size [2021-02-16 18:38:40,606 WARN L147 QuantifierPusher]: treesize reduction 15, result has 81.3 percent of original size 65 [2021-02-16 18:38:40,713 WARN L141 QuantifierPusher]: treesize reduction 61, result has 46.0 percent of original size [2021-02-16 18:38:40,714 WARN L147 QuantifierPusher]: treesize reduction 61, result has 46.0 percent of original size 52 [2021-02-16 18:38:40,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:40,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-16 18:38:40,862 WARN L141 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-02-16 18:38:40,862 WARN L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-02-16 18:38:40,916 WARN L141 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-02-16 18:38:40,917 WARN L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-02-16 18:38:40,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:40,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-16 18:38:41,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:41,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:38:41,147 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:38:41,149 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:38:41,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:41,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:41,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:41,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:41,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:38:41,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:38:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:38:41,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942698473] [2021-02-16 18:38:41,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:38:41,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:38:41,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668640571] [2021-02-16 18:38:41,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:38:41,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:38:41,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:38:41,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:38:41,303 INFO L87 Difference]: Start difference. First operand 3121 states and 6399 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:38:42,300 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2021-02-16 18:38:42,488 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2021-02-16 18:38:42,712 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2021-02-16 18:38:42,956 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-02-16 18:38:43,164 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2021-02-16 18:38:43,408 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2021-02-16 18:38:43,645 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-02-16 18:38:43,881 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2021-02-16 18:38:44,174 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2021-02-16 18:38:44,487 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-02-16 18:38:44,800 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-02-16 18:38:45,131 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 56 [2021-02-16 18:38:45,432 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-02-16 18:38:45,788 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-02-16 18:38:46,184 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2021-02-16 18:38:46,575 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-02-16 18:38:46,968 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 56 [2021-02-16 18:38:47,329 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2021-02-16 18:38:47,652 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-02-16 18:38:47,992 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2021-02-16 18:38:48,331 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-02-16 18:38:48,731 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-02-16 18:38:49,037 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2021-02-16 18:38:49,420 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-02-16 18:38:49,713 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-02-16 18:38:50,100 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-02-16 18:38:50,562 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-02-16 18:38:50,883 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-02-16 18:38:51,202 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-02-16 18:38:51,582 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 64 [2021-02-16 18:38:52,026 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-02-16 18:38:52,361 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-02-16 18:38:52,843 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 64 [2021-02-16 18:38:53,397 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-02-16 18:38:53,801 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-02-16 18:38:54,273 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2021-02-16 18:38:54,780 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-02-16 18:38:55,336 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-02-16 18:38:55,898 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-02-16 18:38:56,355 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-16 18:38:56,938 WARN L202 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-02-16 18:38:57,558 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-02-16 18:38:58,151 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-02-16 18:38:58,811 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-02-16 18:38:59,457 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-02-16 18:39:00,078 WARN L202 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-02-16 18:39:00,662 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-02-16 18:39:01,251 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-02-16 18:39:01,936 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2021-02-16 18:39:02,563 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-02-16 18:39:03,227 WARN L202 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-02-16 18:39:03,883 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-02-16 18:39:04,499 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-02-16 18:39:05,026 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2021-02-16 18:39:05,663 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 73 [2021-02-16 18:39:06,335 WARN L202 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-02-16 18:39:07,133 WARN L202 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-02-16 18:39:07,784 WARN L202 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-02-16 18:39:08,519 WARN L202 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-02-16 18:39:09,163 WARN L202 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 82 [2021-02-16 18:39:09,907 WARN L202 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-02-16 18:39:10,468 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2021-02-16 18:39:11,111 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 88 [2021-02-16 18:39:11,865 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 91 [2021-02-16 18:39:12,628 WARN L202 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 89 [2021-02-16 18:39:13,379 WARN L202 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 85 [2021-02-16 18:39:14,155 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 90 [2021-02-16 18:39:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:39:14,726 INFO L93 Difference]: Finished difference Result 3869 states and 7931 transitions. [2021-02-16 18:39:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-02-16 18:39:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:39:14,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:39:14,731 INFO L225 Difference]: With dead ends: 3869 [2021-02-16 18:39:14,731 INFO L226 Difference]: Without dead ends: 3869 [2021-02-16 18:39:14,732 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1846 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=3149, Invalid=7771, Unknown=0, NotChecked=0, Total=10920 [2021-02-16 18:39:14,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3869 states. [2021-02-16 18:39:14,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3869 to 2792. [2021-02-16 18:39:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2789 states have (on average 2.0516314091072068) internal successors, (5722), 2791 states have internal predecessors, (5722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 5722 transitions. [2021-02-16 18:39:14,786 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 5722 transitions. Word has length 82 [2021-02-16 18:39:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:39:14,786 INFO L480 AbstractCegarLoop]: Abstraction has 2792 states and 5722 transitions. [2021-02-16 18:39:14,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 5722 transitions. [2021-02-16 18:39:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:39:14,790 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:39:14,790 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:39:14,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-02-16 18:39:14,791 INFO L428 AbstractCegarLoop]: === Iteration 32 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:39:14,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:39:14,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1163087026, now seen corresponding path program 29 times [2021-02-16 18:39:14,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:39:14,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659524210] [2021-02-16 18:39:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:39:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:39:14,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:14,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:14,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:14,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:39:14,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:14,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:39:14,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:14,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:39:14,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:14,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:39:14,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:14,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:39:14,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:14,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:39:15,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:39:15,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:15,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:15,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:15,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:15,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:15,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:15,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:15,300 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:39:15,301 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:39:15,354 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:39:15,358 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:39:15,410 WARN L141 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size [2021-02-16 18:39:15,411 WARN L147 QuantifierPusher]: treesize reduction 16, result has 61.9 percent of original size 26 [2021-02-16 18:39:15,467 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:39:15,468 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:39:15,562 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:39:15,564 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:39:15,670 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:39:15,671 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:39:15,780 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:39:15,781 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:39:15,890 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:39:15,891 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:39:15,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:39:15,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:15,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:39:16,047 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:39:16,048 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:39:16,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:16,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:39:16,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659524210] [2021-02-16 18:39:16,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:39:16,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:39:16,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912552650] [2021-02-16 18:39:16,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:39:16,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:39:16,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:39:16,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:39:16,158 INFO L87 Difference]: Start difference. First operand 2792 states and 5722 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:17,396 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:39:17,614 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:39:17,869 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:39:18,115 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2021-02-16 18:39:18,658 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:39:19,214 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:39:19,582 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:39:19,977 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:39:20,400 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:39:20,816 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:39:21,142 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:39:21,558 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:39:21,918 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:39:22,347 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:39:22,715 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:39:23,118 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:39:23,494 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:39:23,922 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:39:24,418 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:39:24,831 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2021-02-16 18:39:25,295 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:39:25,727 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2021-02-16 18:39:26,274 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2021-02-16 18:39:26,803 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2021-02-16 18:39:27,357 WARN L202 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:39:27,868 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:39:28,101 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-02-16 18:39:28,657 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:39:28,885 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-02-16 18:39:29,070 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-02-16 18:39:29,648 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:39:29,910 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2021-02-16 18:39:30,103 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-02-16 18:39:30,488 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-02-16 18:39:30,726 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-02-16 18:39:31,213 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-02-16 18:39:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:39:32,339 INFO L93 Difference]: Finished difference Result 4008 states and 8215 transitions. [2021-02-16 18:39:32,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:39:32,341 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:39:32,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:39:32,344 INFO L225 Difference]: With dead ends: 4008 [2021-02-16 18:39:32,344 INFO L226 Difference]: Without dead ends: 4008 [2021-02-16 18:39:32,345 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=1499, Invalid=4201, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:39:32,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2021-02-16 18:39:32,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 2858. [2021-02-16 18:39:32,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 2855 states have (on average 2.050788091068301) internal successors, (5855), 2857 states have internal predecessors, (5855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 5855 transitions. [2021-02-16 18:39:32,390 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 5855 transitions. Word has length 82 [2021-02-16 18:39:32,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:39:32,390 INFO L480 AbstractCegarLoop]: Abstraction has 2858 states and 5855 transitions. [2021-02-16 18:39:32,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 5855 transitions. [2021-02-16 18:39:32,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:39:32,394 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:39:32,394 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:39:32,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-02-16 18:39:32,395 INFO L428 AbstractCegarLoop]: === Iteration 33 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:39:32,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:39:32,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1712035628, now seen corresponding path program 30 times [2021-02-16 18:39:32,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:39:32,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868587591] [2021-02-16 18:39:32,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:39:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:39:32,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:32,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:39:32,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:39:32,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:39:32,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:39:32,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:39:32,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:39:32,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:39:32,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:32,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:32,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:32,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:32,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:32,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:32,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:32,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:39:32,876 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:39:32,877 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:39:32,927 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:39:32,927 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:39:32,982 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:39:32,983 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:39:33,092 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:39:33,093 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:39:33,186 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:39:33,187 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:39:33,298 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:39:33,299 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:39:33,406 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:39:33,407 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:39:33,510 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:39:33,511 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:39:33,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:33,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:39:33,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:33,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:39:33,663 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:39:33,664 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:39:33,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:33,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:39:33,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868587591] [2021-02-16 18:39:33,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:39:33,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:39:33,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407975544] [2021-02-16 18:39:33,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:39:33,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:39:33,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:39:33,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:39:33,770 INFO L87 Difference]: Start difference. First operand 2858 states and 5855 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:34,897 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:39:35,109 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:39:35,358 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:39:35,622 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2021-02-16 18:39:36,185 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:39:36,735 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-02-16 18:39:37,118 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-16 18:39:37,507 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-02-16 18:39:37,939 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-02-16 18:39:38,260 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:39:38,658 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-02-16 18:39:38,992 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:39:39,400 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-02-16 18:39:39,751 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:39:40,142 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:39:40,537 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-02-16 18:39:40,901 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:39:41,316 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:39:41,731 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:39:42,173 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:39:42,558 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:39:43,021 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:39:43,433 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:39:43,841 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:39:44,290 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:39:44,736 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:39:45,218 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:39:45,696 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:39:46,234 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:39:46,707 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:39:47,336 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:39:47,837 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:39:48,005 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:39:48,551 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:39:48,738 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:39:49,477 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:39:49,689 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:39:49,832 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:39:50,180 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:39:50,356 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:39:50,776 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:39:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:39:51,777 INFO L93 Difference]: Finished difference Result 4271 states and 8766 transitions. [2021-02-16 18:39:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-02-16 18:39:51,778 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:39:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:39:51,783 INFO L225 Difference]: With dead ends: 4271 [2021-02-16 18:39:51,783 INFO L226 Difference]: Without dead ends: 4271 [2021-02-16 18:39:51,784 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=1740, Invalid=4902, Unknown=0, NotChecked=0, Total=6642 [2021-02-16 18:39:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2021-02-16 18:39:51,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 2869. [2021-02-16 18:39:51,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2866 states have (on average 2.0509420795533844) internal successors, (5878), 2868 states have internal predecessors, (5878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 5878 transitions. [2021-02-16 18:39:51,825 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 5878 transitions. Word has length 82 [2021-02-16 18:39:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:39:51,825 INFO L480 AbstractCegarLoop]: Abstraction has 2869 states and 5878 transitions. [2021-02-16 18:39:51,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:51,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 5878 transitions. [2021-02-16 18:39:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:39:51,828 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:39:51,829 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:39:51,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-02-16 18:39:51,829 INFO L428 AbstractCegarLoop]: === Iteration 34 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:39:51,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:39:51,829 INFO L82 PathProgramCache]: Analyzing trace with hash -902677154, now seen corresponding path program 31 times [2021-02-16 18:39:51,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:39:51,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124478836] [2021-02-16 18:39:51,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:39:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:39:51,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:51,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:51,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:51,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:39:51,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:51,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:39:51,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:51,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:39:51,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:51,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:39:51,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:51,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:39:52,021 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:39:52,022 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:39:52,045 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:39:52,046 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:39:52,068 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:39:52,069 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:39:52,100 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:39:52,101 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:39:52,133 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:39:52,134 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:39:52,170 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:39:52,171 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:39:52,204 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:39:52,205 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:39:52,243 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:39:52,244 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:39:52,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:52,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:39:52,364 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:39:52,364 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:39:52,442 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:39:52,443 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:39:52,523 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:39:52,524 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:39:52,610 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:39:52,611 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:39:52,709 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:39:52,710 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:39:52,756 WARN L141 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size [2021-02-16 18:39:52,758 WARN L147 QuantifierPusher]: treesize reduction 54, result has 49.5 percent of original size 53 [2021-02-16 18:39:52,871 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:39:52,872 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:39:52,922 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:39:52,923 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:39:52,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:52,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:39:53,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:53,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:39:53,080 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:39:53,081 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:39:53,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:53,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:53,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:53,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:53,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:39:53,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:39:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:39:53,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124478836] [2021-02-16 18:39:53,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:39:53,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:39:53,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262189520] [2021-02-16 18:39:53,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:39:53,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:39:53,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:39:53,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:39:53,204 INFO L87 Difference]: Start difference. First operand 2869 states and 5878 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:39:54,228 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:39:54,427 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:39:54,670 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-02-16 18:39:54,926 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2021-02-16 18:39:55,433 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-02-16 18:39:55,960 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-02-16 18:39:56,346 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:39:56,746 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-02-16 18:39:57,188 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-02-16 18:39:57,525 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-02-16 18:39:57,941 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:39:58,303 WARN L202 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-02-16 18:39:58,707 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-02-16 18:39:59,091 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-02-16 18:39:59,496 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-02-16 18:39:59,915 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2021-02-16 18:40:00,332 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2021-02-16 18:40:00,761 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-02-16 18:40:01,191 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 72 [2021-02-16 18:40:01,635 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 74 [2021-02-16 18:40:02,058 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-02-16 18:40:02,449 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-02-16 18:40:02,931 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-02-16 18:40:03,383 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-02-16 18:40:03,848 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:40:04,307 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 75 [2021-02-16 18:40:04,787 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-02-16 18:40:05,308 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-02-16 18:40:05,836 WARN L202 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-02-16 18:40:06,387 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2021-02-16 18:40:06,881 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-02-16 18:40:07,405 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 75 [2021-02-16 18:40:07,907 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-02-16 18:40:08,434 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2021-02-16 18:40:08,944 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 84 [2021-02-16 18:40:09,561 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 86 [2021-02-16 18:40:10,252 WARN L202 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2021-02-16 18:40:10,848 WARN L202 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2021-02-16 18:40:11,531 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2021-02-16 18:40:12,145 WARN L202 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 88 [2021-02-16 18:40:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:40:13,110 INFO L93 Difference]: Finished difference Result 4217 states and 8648 transitions. [2021-02-16 18:40:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-16 18:40:13,111 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:40:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:40:13,116 INFO L225 Difference]: With dead ends: 4217 [2021-02-16 18:40:13,116 INFO L226 Difference]: Without dead ends: 4217 [2021-02-16 18:40:13,116 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=1768, Invalid=4084, Unknown=0, NotChecked=0, Total=5852 [2021-02-16 18:40:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4217 states. [2021-02-16 18:40:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4217 to 3072. [2021-02-16 18:40:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 3069 states have (on average 2.0514825676116) internal successors, (6296), 3071 states have internal predecessors, (6296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:13,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 6296 transitions. [2021-02-16 18:40:13,155 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 6296 transitions. Word has length 82 [2021-02-16 18:40:13,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:40:13,155 INFO L480 AbstractCegarLoop]: Abstraction has 3072 states and 6296 transitions. [2021-02-16 18:40:13,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 6296 transitions. [2021-02-16 18:40:13,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:40:13,158 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:40:13,159 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:40:13,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-02-16 18:40:13,159 INFO L428 AbstractCegarLoop]: === Iteration 35 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:40:13,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:40:13,159 INFO L82 PathProgramCache]: Analyzing trace with hash -279232328, now seen corresponding path program 32 times [2021-02-16 18:40:13,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:40:13,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613088344] [2021-02-16 18:40:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:40:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:40:13,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:13,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:40:13,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:40:13,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:40:13,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:40:13,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:40:13,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:40:13,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:40:13,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:13,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:13,701 WARN L141 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-02-16 18:40:13,701 WARN L147 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size 30 [2021-02-16 18:40:13,757 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:40:13,758 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:40:13,848 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:40:13,849 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:40:13,942 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:40:13,943 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:40:14,059 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:40:14,060 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:40:14,169 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:40:14,170 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:40:14,296 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:40:14,297 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:40:14,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:14,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:40:14,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:14,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:40:14,454 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:40:14,456 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:40:14,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:14,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:14,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:40:14,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613088344] [2021-02-16 18:40:14,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:40:14,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:40:14,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057702436] [2021-02-16 18:40:14,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:40:14,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:40:14,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:40:14,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:40:14,566 INFO L87 Difference]: Start difference. First operand 3072 states and 6296 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:15,704 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:40:15,921 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:40:16,165 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:40:16,408 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2021-02-16 18:40:16,943 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:40:17,455 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:40:18,002 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-02-16 18:40:18,420 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-16 18:40:18,866 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-02-16 18:40:19,225 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-02-16 18:40:19,691 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2021-02-16 18:40:20,079 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2021-02-16 18:40:20,521 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 76 [2021-02-16 18:40:20,883 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2021-02-16 18:40:21,339 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-02-16 18:40:21,800 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 79 [2021-02-16 18:40:22,151 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-02-16 18:40:22,611 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-02-16 18:40:23,052 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2021-02-16 18:40:23,450 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-02-16 18:40:24,003 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-02-16 18:40:24,417 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-02-16 18:40:24,947 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-02-16 18:40:25,407 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 78 [2021-02-16 18:40:25,942 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2021-02-16 18:40:26,470 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-02-16 18:40:26,661 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-02-16 18:40:26,921 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-02-16 18:40:27,407 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2021-02-16 18:40:27,855 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-16 18:40:28,058 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2021-02-16 18:40:28,527 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2021-02-16 18:40:28,882 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-16 18:40:29,066 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-02-16 18:40:29,419 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-16 18:40:30,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:40:30,511 INFO L93 Difference]: Finished difference Result 4851 states and 9975 transitions. [2021-02-16 18:40:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-02-16 18:40:30,512 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:40:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:40:30,516 INFO L225 Difference]: With dead ends: 4851 [2021-02-16 18:40:30,516 INFO L226 Difference]: Without dead ends: 4851 [2021-02-16 18:40:30,516 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=1478, Invalid=4222, Unknown=0, NotChecked=0, Total=5700 [2021-02-16 18:40:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-02-16 18:40:30,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 3120. [2021-02-16 18:40:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3117 states have (on average 2.051331408405518) internal successors, (6394), 3119 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 6394 transitions. [2021-02-16 18:40:30,559 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 6394 transitions. Word has length 82 [2021-02-16 18:40:30,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:40:30,559 INFO L480 AbstractCegarLoop]: Abstraction has 3120 states and 6394 transitions. [2021-02-16 18:40:30,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:30,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 6394 transitions. [2021-02-16 18:40:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:40:30,563 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:40:30,563 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:40:30,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-02-16 18:40:30,564 INFO L428 AbstractCegarLoop]: === Iteration 36 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:40:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:40:30,564 INFO L82 PathProgramCache]: Analyzing trace with hash 530126146, now seen corresponding path program 33 times [2021-02-16 18:40:30,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:40:30,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163200313] [2021-02-16 18:40:30,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:40:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:40:30,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:30,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:30,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:30,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:40:30,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:30,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:40:30,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:30,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:40:30,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:30,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:40:30,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:30,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:40:30,753 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-16 18:40:30,754 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-16 18:40:30,786 WARN L141 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-02-16 18:40:30,787 WARN L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-02-16 18:40:30,817 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:40:30,818 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:40:30,853 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:40:30,854 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:40:30,901 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:40:30,902 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:40:30,952 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:40:30,953 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:40:30,995 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:40:30,996 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:40:31,046 WARN L141 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-02-16 18:40:31,047 WARN L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-02-16 18:40:31,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:31,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:40:31,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:31,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-16 18:40:31,274 WARN L141 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-02-16 18:40:31,275 WARN L147 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size 40 [2021-02-16 18:40:31,350 WARN L141 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-02-16 18:40:31,351 WARN L147 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size 44 [2021-02-16 18:40:31,435 WARN L141 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-02-16 18:40:31,436 WARN L147 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size 47 [2021-02-16 18:40:31,530 WARN L141 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size [2021-02-16 18:40:31,531 WARN L147 QuantifierPusher]: treesize reduction 27, result has 65.8 percent of original size 52 [2021-02-16 18:40:31,581 WARN L141 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size [2021-02-16 18:40:31,582 WARN L147 QuantifierPusher]: treesize reduction 61, result has 43.0 percent of original size 46 [2021-02-16 18:40:31,680 WARN L141 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-02-16 18:40:31,681 WARN L147 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size 20 [2021-02-16 18:40:31,734 WARN L141 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-02-16 18:40:31,734 WARN L147 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size 27 [2021-02-16 18:40:31,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:31,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-16 18:40:31,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:31,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:40:31,901 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:40:31,902 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:40:31,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:31,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:31,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:31,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:31,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:31,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:40:32,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163200313] [2021-02-16 18:40:32,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:40:32,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-16 18:40:32,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969376296] [2021-02-16 18:40:32,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-16 18:40:32,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:40:32,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-16 18:40:32,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-02-16 18:40:32,013 INFO L87 Difference]: Start difference. First operand 3120 states and 6394 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:33,124 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2021-02-16 18:40:33,327 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2021-02-16 18:40:33,564 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-02-16 18:40:33,818 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 53 [2021-02-16 18:40:34,291 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-02-16 18:40:34,779 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2021-02-16 18:40:35,100 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2021-02-16 18:40:35,453 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-02-16 18:40:35,840 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-02-16 18:40:36,288 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2021-02-16 18:40:36,643 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-02-16 18:40:37,073 WARN L202 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-02-16 18:40:37,444 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-02-16 18:40:37,861 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-02-16 18:40:38,256 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-02-16 18:40:38,667 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-02-16 18:40:39,098 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2021-02-16 18:40:39,520 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 74 [2021-02-16 18:40:39,958 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2021-02-16 18:40:40,398 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2021-02-16 18:40:40,855 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 74 [2021-02-16 18:40:41,300 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-02-16 18:40:41,698 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-02-16 18:40:42,189 WARN L202 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-02-16 18:40:42,652 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 76 [2021-02-16 18:40:43,126 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2021-02-16 18:40:43,591 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2021-02-16 18:40:44,077 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 78 [2021-02-16 18:40:44,601 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-02-16 18:40:45,141 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 81 [2021-02-16 18:40:45,705 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-02-16 18:40:46,212 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 79 [2021-02-16 18:40:46,741 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-02-16 18:40:47,246 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-02-16 18:40:47,776 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-02-16 18:40:48,301 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 84 [2021-02-16 18:40:48,959 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2021-02-16 18:40:49,680 WARN L202 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 89 [2021-02-16 18:40:50,300 WARN L202 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2021-02-16 18:40:51,009 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2021-02-16 18:40:51,638 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 88 [2021-02-16 18:40:52,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-16 18:40:52,708 INFO L93 Difference]: Finished difference Result 4773 states and 9804 transitions. [2021-02-16 18:40:52,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-02-16 18:40:52,709 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-02-16 18:40:52,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-16 18:40:52,714 INFO L225 Difference]: With dead ends: 4773 [2021-02-16 18:40:52,714 INFO L226 Difference]: Without dead ends: 4773 [2021-02-16 18:40:52,715 INFO L761 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=1816, Invalid=4190, Unknown=0, NotChecked=0, Total=6006 [2021-02-16 18:40:52,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4773 states. [2021-02-16 18:40:52,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4773 to 3078. [2021-02-16 18:40:52,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3075 states have (on average 2.051382113821138) internal successors, (6308), 3077 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:52,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 6308 transitions. [2021-02-16 18:40:52,765 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 6308 transitions. Word has length 82 [2021-02-16 18:40:52,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-16 18:40:52,766 INFO L480 AbstractCegarLoop]: Abstraction has 3078 states and 6308 transitions. [2021-02-16 18:40:52,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 26 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:52,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 6308 transitions. [2021-02-16 18:40:52,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-16 18:40:52,770 INFO L497 BasicCegarLoop]: Found error trace [2021-02-16 18:40:52,770 INFO L505 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-16 18:40:52,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-02-16 18:40:52,770 INFO L428 AbstractCegarLoop]: === Iteration 37 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-16 18:40:52,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-16 18:40:52,771 INFO L82 PathProgramCache]: Analyzing trace with hash 621127538, now seen corresponding path program 34 times [2021-02-16 18:40:52,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-16 18:40:52,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968979020] [2021-02-16 18:40:52,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-16 18:40:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-16 18:40:52,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:52,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-16 18:40:52,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-16 18:40:52,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:40:52,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-16 18:40:52,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-16 18:40:52,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-16 18:40:52,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:52,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-16 18:40:53,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:53,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-16 18:40:53,336 WARN L141 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-02-16 18:40:53,337 WARN L147 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size 47 [2021-02-16 18:40:53,457 WARN L141 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size [2021-02-16 18:40:53,458 WARN L147 QuantifierPusher]: treesize reduction 22, result has 71.1 percent of original size 54 [2021-02-16 18:40:53,546 WARN L141 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size [2021-02-16 18:40:53,547 WARN L147 QuantifierPusher]: treesize reduction 22, result has 69.4 percent of original size 50 [2021-02-16 18:40:53,632 WARN L141 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size [2021-02-16 18:40:53,633 WARN L147 QuantifierPusher]: treesize reduction 28, result has 67.8 percent of original size 59 [2021-02-16 18:40:53,747 WARN L141 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size [2021-02-16 18:40:53,748 WARN L147 QuantifierPusher]: treesize reduction 16, result has 77.1 percent of original size 54 [2021-02-16 18:40:53,859 WARN L141 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size [2021-02-16 18:40:53,860 WARN L147 QuantifierPusher]: treesize reduction 19, result has 72.5 percent of original size 50 [2021-02-16 18:40:53,968 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-16 18:40:53,968 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-16 18:40:54,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:54,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-16 18:40:54,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:54,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-16 18:40:54,128 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-16 18:40:54,129 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-16 18:40:54,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-16 18:40:54,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-16 18:40:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-16 18:40:54,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968979020] [2021-02-16 18:40:54,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-16 18:40:54,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-16 18:40:54,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112490365] [2021-02-16 18:40:54,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-16 18:40:54,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-16 18:40:54,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-16 18:40:54,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-02-16 18:40:54,241 INFO L87 Difference]: Start difference. First operand 3078 states and 6308 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 27 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-16 18:40:55,432 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2021-02-16 18:40:55,658 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-02-16 18:40:55,907 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-02-16 18:40:56,166 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2021-02-16 18:40:56,727 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-16 18:40:57,273 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2021-02-16 18:40:57,751 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-02-16 18:40:58,415 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-02-16 18:40:58,896 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-02-16 18:40:59,334 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2021-02-16 18:40:59,767 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-02-16 18:41:00,218 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2021-02-16 18:41:00,659 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 Received shutdown request... [2021-02-16 18:41:00,933 WARN L219 SmtUtils]: Removed 4 from assertion stack [2021-02-16 18:41:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-16 18:41:00,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-02-16 18:41:00,934 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-16 18:41:00,938 WARN L224 ceAbstractionStarter]: Timeout [2021-02-16 18:41:00,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 06:41:00 BasicIcfg [2021-02-16 18:41:00,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-16 18:41:00,939 INFO L168 Benchmark]: Toolchain (without parser) took 771973.52 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 277.3 MB in the beginning and 355.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 298.8 MB. Max. memory is 16.0 GB. [2021-02-16 18:41:00,939 INFO L168 Benchmark]: CDTParser took 1.90 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-02-16 18:41:00,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1038.01 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 272.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.0 GB. [2021-02-16 18:41:00,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.99 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 269.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 18:41:00,940 INFO L168 Benchmark]: Boogie Preprocessor took 48.51 ms. Allocated memory is still 302.0 MB. Free memory was 269.4 MB in the beginning and 267.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-16 18:41:00,940 INFO L168 Benchmark]: RCFGBuilder took 1008.46 ms. Allocated memory is still 302.0 MB. Free memory was 267.4 MB in the beginning and 234.8 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-02-16 18:41:00,940 INFO L168 Benchmark]: TraceAbstraction took 769718.65 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 233.8 MB in the beginning and 355.3 MB in the end (delta: -121.5 MB). Peak memory consumption was 255.0 MB. Max. memory is 16.0 GB. [2021-02-16 18:41:00,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.90 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1038.01 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 272.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 136.99 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 269.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 48.51 ms. Allocated memory is still 302.0 MB. Free memory was 269.4 MB in the beginning and 267.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1008.46 ms. Allocated memory is still 302.0 MB. Free memory was 267.4 MB in the beginning and 234.8 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 769718.65 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 233.8 MB in the beginning and 355.3 MB in the end (delta: -121.5 MB). Peak memory consumption was 255.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 832]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 832). Cancelled while BasicCegarLoop was constructing difference of abstraction (3078states) and FLOYD_HOARE automaton (currently 23 states, 27 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 103 for 189ms.. - TimeoutResultAtElement [Line: 836]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 836). Cancelled while BasicCegarLoop was constructing difference of abstraction (3078states) and FLOYD_HOARE automaton (currently 23 states, 27 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 103 for 189ms.. - TimeoutResultAtElement [Line: 837]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 837). Cancelled while BasicCegarLoop was constructing difference of abstraction (3078states) and FLOYD_HOARE automaton (currently 23 states, 27 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 103 for 189ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 769.3s, OverallIterations: 37, TraceHistogramMax: 1, AutomataDifference: 712.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 10181 SDtfs, 44193 SDslu, 115871 SDs, 0 SdLazy, 71005 SolverSat, 1607 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2951 GetRequests, 104 SyntacticMatches, 15 SemanticMatches, 2831 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40622 ImplicationChecksByTransitivity, 634.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3263occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 36 MinimizatonAttempts, 44388 StatesRemovedByMinimization, 35 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 51.0s InterpolantComputationTime, 2918 NumberOfCodeBlocks, 2918 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 2881 ConstructedInterpolants, 0 QuantifiedInterpolants, 3301631 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 37 InterpolantComputations, 37 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