/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 21:41:12,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 21:41:12,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 21:41:12,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 21:41:12,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 21:41:12,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 21:41:12,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 21:41:12,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 21:41:12,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 21:41:12,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 21:41:12,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 21:41:12,919 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 21:41:12,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 21:41:12,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 21:41:12,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 21:41:12,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 21:41:12,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 21:41:12,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 21:41:12,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 21:41:12,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 21:41:12,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 21:41:12,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 21:41:12,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 21:41:12,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 21:41:12,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 21:41:12,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 21:41:12,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 21:41:12,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 21:41:12,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 21:41:12,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 21:41:12,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 21:41:12,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 21:41:12,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 21:41:12,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 21:41:12,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 21:41:12,986 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 21:41:12,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 21:41:12,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 21:41:12,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 21:41:12,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 21:41:12,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 21:41:12,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 21:41:12,988 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 21:41:12,988 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 21:41:12,988 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 21:41:12,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 21:41:12,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 21:41:12,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 21:41:12,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 21:41:12,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 21:41:12,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:41:12,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 21:41:12,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 21:41:12,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 21:41:12,991 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 21:41:12,991 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 21:41:13,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 21:41:13,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 21:41:13,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 21:41:13,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 21:41:13,205 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 21:41:13,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c [2022-01-10 21:41:13,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5528daf25/4c9d8fa20d924aa4b9c05a2f72a2931b/FLAG5ab33917d [2022-01-10 21:41:13,736 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 21:41:13,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c [2022-01-10 21:41:13,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5528daf25/4c9d8fa20d924aa4b9c05a2f72a2931b/FLAG5ab33917d [2022-01-10 21:41:13,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5528daf25/4c9d8fa20d924aa4b9c05a2f72a2931b [2022-01-10 21:41:13,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 21:41:13,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 21:41:13,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 21:41:13,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 21:41:13,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 21:41:13,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:41:13" (1/1) ... [2022-01-10 21:41:13,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751b70d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:13, skipping insertion in model container [2022-01-10 21:41:13,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:41:13" (1/1) ... [2022-01-10 21:41:13,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 21:41:13,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 21:41:14,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2022-01-10 21:41:14,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:41:14,168 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 21:41:14,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/diskperf_simpl1.cil.c[2072,2085] [2022-01-10 21:41:14,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:41:14,246 INFO L208 MainTranslator]: Completed translation [2022-01-10 21:41:14,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14 WrapperNode [2022-01-10 21:41:14,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 21:41:14,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 21:41:14,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 21:41:14,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 21:41:14,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,359 INFO L137 Inliner]: procedures = 38, calls = 66, calls flagged for inlining = 61, calls inlined = 133, statements flattened = 2528 [2022-01-10 21:41:14,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 21:41:14,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 21:41:14,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 21:41:14,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 21:41:14,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 21:41:14,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 21:41:14,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 21:41:14,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 21:41:14,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (1/1) ... [2022-01-10 21:41:14,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:41:14,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:41:14,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 21:41:14,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 21:41:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 21:41:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 21:41:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 21:41:14,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 21:41:14,725 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 21:41:14,726 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 21:41:14,734 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,760 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,762 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,779 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,781 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,782 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,783 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,785 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,785 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,787 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,788 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,789 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,791 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,797 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,798 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,803 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,806 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,810 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,811 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,814 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,816 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:14,818 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:15,882 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##674: assume !false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##673: assume false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##618: assume !false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##617: assume false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##296: assume !false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##295: assume false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##256: assume !false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume false; [2022-01-10 21:41:15,883 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##217: assume !false; [2022-01-10 21:41:15,884 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##216: assume false; [2022-01-10 21:41:15,884 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##247: assume !false; [2022-01-10 21:41:15,884 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume false; [2022-01-10 21:41:15,884 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##724: assume !false; [2022-01-10 21:41:15,884 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##723: assume false; [2022-01-10 21:41:15,884 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2022-01-10 21:41:15,884 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##326: assume !false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##325: assume false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##335: assume !false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##334: assume false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##405: assume !false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##412: assume false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##413: assume !false; [2022-01-10 21:41:15,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##452: assume false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##453: assume !false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##483: assume !false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##482: assume false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##543: assume !false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##542: assume false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##98: assume !false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume false; [2022-01-10 21:41:15,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##80: assume !false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##172: assume !false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##142: assume !false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-01-10 21:41:15,887 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##573: assume !false; [2022-01-10 21:41:15,888 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##572: assume false; [2022-01-10 21:41:15,888 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 21:41:15,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 21:41:15,898 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 21:41:15,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:41:15 BoogieIcfgContainer [2022-01-10 21:41:15,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 21:41:15,900 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 21:41:15,900 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 21:41:15,938 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 21:41:15,941 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:41:15" (1/1) ... [2022-01-10 21:41:16,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:41:16 BasicIcfg [2022-01-10 21:41:16,272 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 21:41:16,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 21:41:16,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 21:41:16,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 21:41:16,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:41:13" (1/4) ... [2022-01-10 21:41:16,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f97b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:41:16, skipping insertion in model container [2022-01-10 21:41:16,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:14" (2/4) ... [2022-01-10 21:41:16,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f97b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:41:16, skipping insertion in model container [2022-01-10 21:41:16,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:41:15" (3/4) ... [2022-01-10 21:41:16,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f97b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:41:16, skipping insertion in model container [2022-01-10 21:41:16,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:41:16" (4/4) ... [2022-01-10 21:41:16,278 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.cTransformedIcfg [2022-01-10 21:41:16,282 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 21:41:16,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 51 error locations. [2022-01-10 21:41:16,329 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 21:41:16,337 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 21:41:16,337 INFO L340 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2022-01-10 21:41:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 621 states, 569 states have (on average 1.5571177504393674) internal successors, (886), 620 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 21:41:16,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:16,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:16,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:16,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1835000546, now seen corresponding path program 1 times [2022-01-10 21:41:16,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:16,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434599878] [2022-01-10 21:41:16,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:16,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:16,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:16,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434599878] [2022-01-10 21:41:16,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434599878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:16,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:16,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:16,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230285891] [2022-01-10 21:41:16,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:16,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:16,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:16,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:16,650 INFO L87 Difference]: Start difference. First operand has 621 states, 569 states have (on average 1.5571177504393674) internal successors, (886), 620 states have internal predecessors, (886), 0 states have call successors, (0), 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 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:17,058 INFO L93 Difference]: Finished difference Result 1394 states and 2019 transitions. [2022-01-10 21:41:17,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:17,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 21:41:17,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:17,086 INFO L225 Difference]: With dead ends: 1394 [2022-01-10 21:41:17,086 INFO L226 Difference]: Without dead ends: 830 [2022-01-10 21:41:17,093 INFO L932 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 [2022-01-10 21:41:17,096 INFO L933 BasicCegarLoop]: 1010 mSDtfsCounter, 521 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:17,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1458 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 21:41:17,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-01-10 21:41:17,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 790. [2022-01-10 21:41:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 750 states have (on average 1.472) internal successors, (1104), 789 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1104 transitions. [2022-01-10 21:41:17,186 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1104 transitions. Word has length 12 [2022-01-10 21:41:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:17,187 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1104 transitions. [2022-01-10 21:41:17,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,187 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1104 transitions. [2022-01-10 21:41:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 21:41:17,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:17,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:17,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 21:41:17,188 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash 957479457, now seen corresponding path program 1 times [2022-01-10 21:41:17,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:17,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282432116] [2022-01-10 21:41:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:17,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:17,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:17,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282432116] [2022-01-10 21:41:17,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282432116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:17,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:17,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:17,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612584953] [2022-01-10 21:41:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:17,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:17,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:17,270 INFO L87 Difference]: Start difference. First operand 790 states and 1104 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:17,451 INFO L93 Difference]: Finished difference Result 812 states and 1129 transitions. [2022-01-10 21:41:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:17,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-01-10 21:41:17,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:17,454 INFO L225 Difference]: With dead ends: 812 [2022-01-10 21:41:17,454 INFO L226 Difference]: Without dead ends: 790 [2022-01-10 21:41:17,458 INFO L932 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 [2022-01-10 21:41:17,460 INFO L933 BasicCegarLoop]: 745 mSDtfsCounter, 4 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:17,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1332 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-01-10 21:41:17,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2022-01-10 21:41:17,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 750 states have (on average 1.4706666666666666) internal successors, (1103), 789 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1103 transitions. [2022-01-10 21:41:17,483 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1103 transitions. Word has length 12 [2022-01-10 21:41:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:17,483 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1103 transitions. [2022-01-10 21:41:17,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1103 transitions. [2022-01-10 21:41:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 21:41:17,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:17,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:17,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 21:41:17,485 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:17,486 INFO L85 PathProgramCache]: Analyzing trace with hash 369165819, now seen corresponding path program 1 times [2022-01-10 21:41:17,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:17,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555080195] [2022-01-10 21:41:17,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:17,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:17,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:17,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:17,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555080195] [2022-01-10 21:41:17,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555080195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:17,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:17,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:17,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301365553] [2022-01-10 21:41:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:17,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:17,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:17,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:17,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:17,597 INFO L87 Difference]: Start difference. First operand 790 states and 1103 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:17,663 INFO L93 Difference]: Finished difference Result 1614 states and 2256 transitions. [2022-01-10 21:41:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:17,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-01-10 21:41:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:17,667 INFO L225 Difference]: With dead ends: 1614 [2022-01-10 21:41:17,667 INFO L226 Difference]: Without dead ends: 1031 [2022-01-10 21:41:17,668 INFO L932 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 [2022-01-10 21:41:17,669 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 407 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:17,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1078 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-01-10 21:41:17,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 892. [2022-01-10 21:41:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 862 states have (on average 1.4535962877030162) internal successors, (1253), 891 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1253 transitions. [2022-01-10 21:41:17,702 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1253 transitions. Word has length 17 [2022-01-10 21:41:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:17,702 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 1253 transitions. [2022-01-10 21:41:17,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1253 transitions. [2022-01-10 21:41:17,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 21:41:17,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:17,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:17,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 21:41:17,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:17,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1295769811, now seen corresponding path program 1 times [2022-01-10 21:41:17,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:17,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069885006] [2022-01-10 21:41:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:17,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:17,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:17,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069885006] [2022-01-10 21:41:17,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069885006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:17,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:17,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:17,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961486586] [2022-01-10 21:41:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:17,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:17,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:17,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:17,750 INFO L87 Difference]: Start difference. First operand 892 states and 1253 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:17,902 INFO L93 Difference]: Finished difference Result 915 states and 1281 transitions. [2022-01-10 21:41:17,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:17,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-10 21:41:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:17,905 INFO L225 Difference]: With dead ends: 915 [2022-01-10 21:41:17,905 INFO L226 Difference]: Without dead ends: 910 [2022-01-10 21:41:17,906 INFO L932 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 [2022-01-10 21:41:17,907 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 25 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:17,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 1067 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:17,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-01-10 21:41:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 907. [2022-01-10 21:41:17,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 877 states have (on average 1.4526795895096922) internal successors, (1274), 906 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1274 transitions. [2022-01-10 21:41:17,938 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1274 transitions. Word has length 22 [2022-01-10 21:41:17,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:17,939 INFO L470 AbstractCegarLoop]: Abstraction has 907 states and 1274 transitions. [2022-01-10 21:41:17,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:17,939 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1274 transitions. [2022-01-10 21:41:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 21:41:17,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:17,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:17,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 21:41:17,940 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1295738034, now seen corresponding path program 1 times [2022-01-10 21:41:17,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:17,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561592466] [2022-01-10 21:41:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:17,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:17,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:17,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561592466] [2022-01-10 21:41:17,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561592466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:17,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:17,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:17,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872139782] [2022-01-10 21:41:17,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:17,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:17,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:17,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:17,982 INFO L87 Difference]: Start difference. First operand 907 states and 1274 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:18,065 INFO L93 Difference]: Finished difference Result 1635 states and 2316 transitions. [2022-01-10 21:41:18,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:18,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-10 21:41:18,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:18,071 INFO L225 Difference]: With dead ends: 1635 [2022-01-10 21:41:18,071 INFO L226 Difference]: Without dead ends: 1604 [2022-01-10 21:41:18,071 INFO L932 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 [2022-01-10 21:41:18,073 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 590 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:18,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 1019 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-01-10 21:41:18,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1542. [2022-01-10 21:41:18,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1512 states have (on average 1.470899470899471) internal successors, (2224), 1541 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2224 transitions. [2022-01-10 21:41:18,169 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2224 transitions. Word has length 22 [2022-01-10 21:41:18,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:18,170 INFO L470 AbstractCegarLoop]: Abstraction has 1542 states and 2224 transitions. [2022-01-10 21:41:18,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2224 transitions. [2022-01-10 21:41:18,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 21:41:18,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:18,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:18,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 21:41:18,171 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:18,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:18,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1513139354, now seen corresponding path program 1 times [2022-01-10 21:41:18,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:18,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721699804] [2022-01-10 21:41:18,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:18,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:18,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:18,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:18,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721699804] [2022-01-10 21:41:18,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721699804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:18,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:18,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:18,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050525466] [2022-01-10 21:41:18,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:18,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:18,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:18,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:18,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:18,212 INFO L87 Difference]: Start difference. First operand 1542 states and 2224 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:18,278 INFO L93 Difference]: Finished difference Result 1556 states and 2240 transitions. [2022-01-10 21:41:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-10 21:41:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:18,284 INFO L225 Difference]: With dead ends: 1556 [2022-01-10 21:41:18,284 INFO L226 Difference]: Without dead ends: 1538 [2022-01-10 21:41:18,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:18,288 INFO L933 BasicCegarLoop]: 610 mSDtfsCounter, 21 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:18,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 1819 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:18,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2022-01-10 21:41:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1538. [2022-01-10 21:41:18,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1508 states have (on average 1.4714854111405835) internal successors, (2219), 1537 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2219 transitions. [2022-01-10 21:41:18,346 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2219 transitions. Word has length 23 [2022-01-10 21:41:18,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:18,347 INFO L470 AbstractCegarLoop]: Abstraction has 1538 states and 2219 transitions. [2022-01-10 21:41:18,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2219 transitions. [2022-01-10 21:41:18,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 21:41:18,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:18,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:18,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 21:41:18,348 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:18,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:18,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1517447124, now seen corresponding path program 1 times [2022-01-10 21:41:18,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:18,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463050736] [2022-01-10 21:41:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:18,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:18,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:18,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463050736] [2022-01-10 21:41:18,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463050736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:18,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:18,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:18,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114155562] [2022-01-10 21:41:18,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:18,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:18,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:18,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:18,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:18,407 INFO L87 Difference]: Start difference. First operand 1538 states and 2219 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:18,576 INFO L93 Difference]: Finished difference Result 1538 states and 2219 transitions. [2022-01-10 21:41:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:18,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-10 21:41:18,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:18,581 INFO L225 Difference]: With dead ends: 1538 [2022-01-10 21:41:18,582 INFO L226 Difference]: Without dead ends: 1534 [2022-01-10 21:41:18,582 INFO L932 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 [2022-01-10 21:41:18,583 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 19 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:18,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1041 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2022-01-10 21:41:18,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1534. [2022-01-10 21:41:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1506 states have (on average 1.4707835325365206) internal successors, (2215), 1533 states have internal predecessors, (2215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2215 transitions. [2022-01-10 21:41:18,638 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2215 transitions. Word has length 23 [2022-01-10 21:41:18,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:18,638 INFO L470 AbstractCegarLoop]: Abstraction has 1534 states and 2215 transitions. [2022-01-10 21:41:18,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2215 transitions. [2022-01-10 21:41:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 21:41:18,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:18,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:18,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 21:41:18,639 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:18,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:18,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1202277771, now seen corresponding path program 1 times [2022-01-10 21:41:18,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:18,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36780179] [2022-01-10 21:41:18,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:18,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:18,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:18,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36780179] [2022-01-10 21:41:18,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36780179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:18,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:18,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:18,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568585060] [2022-01-10 21:41:18,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:18,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:18,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:18,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:18,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:18,735 INFO L87 Difference]: Start difference. First operand 1534 states and 2215 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:18,810 INFO L93 Difference]: Finished difference Result 1552 states and 2235 transitions. [2022-01-10 21:41:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:18,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-10 21:41:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:18,816 INFO L225 Difference]: With dead ends: 1552 [2022-01-10 21:41:18,817 INFO L226 Difference]: Without dead ends: 1534 [2022-01-10 21:41:18,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:18,818 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 37 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:18,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 2384 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2022-01-10 21:41:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1534. [2022-01-10 21:41:18,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1506 states have (on average 1.4701195219123506) internal successors, (2214), 1533 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2214 transitions. [2022-01-10 21:41:18,879 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2214 transitions. Word has length 27 [2022-01-10 21:41:18,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:18,879 INFO L470 AbstractCegarLoop]: Abstraction has 1534 states and 2214 transitions. [2022-01-10 21:41:18,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2214 transitions. [2022-01-10 21:41:18,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 21:41:18,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:18,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:18,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 21:41:18,882 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:18,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:18,883 INFO L85 PathProgramCache]: Analyzing trace with hash -399842444, now seen corresponding path program 1 times [2022-01-10 21:41:18,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:18,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462336190] [2022-01-10 21:41:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:18,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:18,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:18,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462336190] [2022-01-10 21:41:18,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462336190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:18,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:18,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:18,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890273225] [2022-01-10 21:41:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:18,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:18,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:18,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:18,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:18,938 INFO L87 Difference]: Start difference. First operand 1534 states and 2214 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:18,999 INFO L93 Difference]: Finished difference Result 1549 states and 2231 transitions. [2022-01-10 21:41:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-10 21:41:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:19,005 INFO L225 Difference]: With dead ends: 1549 [2022-01-10 21:41:19,005 INFO L226 Difference]: Without dead ends: 1532 [2022-01-10 21:41:19,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:19,008 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 21 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:19,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 1788 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:19,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2022-01-10 21:41:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2022-01-10 21:41:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1504 states have (on average 1.4700797872340425) internal successors, (2211), 1531 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2211 transitions. [2022-01-10 21:41:19,065 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2211 transitions. Word has length 27 [2022-01-10 21:41:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:19,066 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 2211 transitions. [2022-01-10 21:41:19,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2211 transitions. [2022-01-10 21:41:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 21:41:19,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:19,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:19,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 21:41:19,068 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:19,068 INFO L85 PathProgramCache]: Analyzing trace with hash -437268516, now seen corresponding path program 1 times [2022-01-10 21:41:19,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:19,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860007465] [2022-01-10 21:41:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:19,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:19,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:19,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860007465] [2022-01-10 21:41:19,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860007465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:19,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:19,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:19,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355174956] [2022-01-10 21:41:19,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:19,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:19,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:19,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:19,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:19,117 INFO L87 Difference]: Start difference. First operand 1532 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:19,173 INFO L93 Difference]: Finished difference Result 2151 states and 3082 transitions. [2022-01-10 21:41:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:19,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-10 21:41:19,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:19,176 INFO L225 Difference]: With dead ends: 2151 [2022-01-10 21:41:19,176 INFO L226 Difference]: Without dead ends: 778 [2022-01-10 21:41:19,179 INFO L932 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 [2022-01-10 21:41:19,180 INFO L933 BasicCegarLoop]: 478 mSDtfsCounter, 478 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:19,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 478 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-01-10 21:41:19,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2022-01-10 21:41:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 757 states have (on average 1.4029062087186261) internal successors, (1062), 777 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1062 transitions. [2022-01-10 21:41:19,230 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1062 transitions. Word has length 27 [2022-01-10 21:41:19,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:19,231 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1062 transitions. [2022-01-10 21:41:19,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1062 transitions. [2022-01-10 21:41:19,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 21:41:19,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:19,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:19,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 21:41:19,232 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:19,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:19,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1528596529, now seen corresponding path program 1 times [2022-01-10 21:41:19,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:19,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103415483] [2022-01-10 21:41:19,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:19,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:19,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:19,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103415483] [2022-01-10 21:41:19,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103415483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:19,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:19,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:19,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701535794] [2022-01-10 21:41:19,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:19,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:19,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:19,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:19,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:19,287 INFO L87 Difference]: Start difference. First operand 778 states and 1062 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:19,507 INFO L93 Difference]: Finished difference Result 1112 states and 1519 transitions. [2022-01-10 21:41:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:19,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-10 21:41:19,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:19,511 INFO L225 Difference]: With dead ends: 1112 [2022-01-10 21:41:19,511 INFO L226 Difference]: Without dead ends: 1104 [2022-01-10 21:41:19,511 INFO L932 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 [2022-01-10 21:41:19,512 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 273 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:19,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 801 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:19,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-01-10 21:41:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 793. [2022-01-10 21:41:19,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 772 states have (on average 1.3976683937823835) internal successors, (1079), 792 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1079 transitions. [2022-01-10 21:41:19,557 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1079 transitions. Word has length 29 [2022-01-10 21:41:19,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:19,558 INFO L470 AbstractCegarLoop]: Abstraction has 793 states and 1079 transitions. [2022-01-10 21:41:19,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,558 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1079 transitions. [2022-01-10 21:41:19,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 21:41:19,558 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:19,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:19,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 21:41:19,559 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:19,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:19,559 INFO L85 PathProgramCache]: Analyzing trace with hash 532373356, now seen corresponding path program 1 times [2022-01-10 21:41:19,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:19,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881566969] [2022-01-10 21:41:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:19,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:19,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:19,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881566969] [2022-01-10 21:41:19,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881566969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:19,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:19,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:19,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245993106] [2022-01-10 21:41:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:19,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:19,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:19,600 INFO L87 Difference]: Start difference. First operand 793 states and 1079 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:19,655 INFO L93 Difference]: Finished difference Result 936 states and 1253 transitions. [2022-01-10 21:41:19,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:19,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-10 21:41:19,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:19,658 INFO L225 Difference]: With dead ends: 936 [2022-01-10 21:41:19,658 INFO L226 Difference]: Without dead ends: 594 [2022-01-10 21:41:19,659 INFO L932 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 [2022-01-10 21:41:19,659 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 361 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:19,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 612 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:19,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-01-10 21:41:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 580. [2022-01-10 21:41:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 559 states have (on average 1.3613595706618962) internal successors, (761), 579 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 761 transitions. [2022-01-10 21:41:19,695 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 761 transitions. Word has length 29 [2022-01-10 21:41:19,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:19,696 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 761 transitions. [2022-01-10 21:41:19,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 761 transitions. [2022-01-10 21:41:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 21:41:19,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:19,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:19,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 21:41:19,697 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:19,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash -140833020, now seen corresponding path program 1 times [2022-01-10 21:41:19,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:19,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893549447] [2022-01-10 21:41:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:19,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:19,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:19,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893549447] [2022-01-10 21:41:19,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893549447] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:19,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:19,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:19,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174277077] [2022-01-10 21:41:19,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:19,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:19,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:19,739 INFO L87 Difference]: Start difference. First operand 580 states and 761 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:19,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:19,974 INFO L93 Difference]: Finished difference Result 809 states and 1059 transitions. [2022-01-10 21:41:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:19,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-01-10 21:41:19,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:19,977 INFO L225 Difference]: With dead ends: 809 [2022-01-10 21:41:19,977 INFO L226 Difference]: Without dead ends: 801 [2022-01-10 21:41:19,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:19,978 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 983 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:19,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 782 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:19,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-01-10 21:41:20,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 580. [2022-01-10 21:41:20,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 559 states have (on average 1.3595706618962433) internal successors, (760), 579 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 760 transitions. [2022-01-10 21:41:20,014 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 760 transitions. Word has length 30 [2022-01-10 21:41:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:20,014 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 760 transitions. [2022-01-10 21:41:20,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 760 transitions. [2022-01-10 21:41:20,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 21:41:20,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:20,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:20,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 21:41:20,016 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:20,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:20,016 INFO L85 PathProgramCache]: Analyzing trace with hash -668862199, now seen corresponding path program 1 times [2022-01-10 21:41:20,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:20,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230221231] [2022-01-10 21:41:20,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:20,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:20,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:20,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230221231] [2022-01-10 21:41:20,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230221231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:20,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:20,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:20,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66175875] [2022-01-10 21:41:20,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:20,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:20,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:20,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:20,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:20,056 INFO L87 Difference]: Start difference. First operand 580 states and 760 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:20,244 INFO L93 Difference]: Finished difference Result 585 states and 764 transitions. [2022-01-10 21:41:20,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:20,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-01-10 21:41:20,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:20,246 INFO L225 Difference]: With dead ends: 585 [2022-01-10 21:41:20,246 INFO L226 Difference]: Without dead ends: 580 [2022-01-10 21:41:20,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:20,247 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 478 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:20,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 806 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-01-10 21:41:20,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-01-10 21:41:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 559 states have (on average 1.3577817531305902) internal successors, (759), 579 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 759 transitions. [2022-01-10 21:41:20,292 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 759 transitions. Word has length 31 [2022-01-10 21:41:20,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:20,292 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 759 transitions. [2022-01-10 21:41:20,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,293 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 759 transitions. [2022-01-10 21:41:20,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 21:41:20,293 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:20,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:20,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 21:41:20,293 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:20,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:20,294 INFO L85 PathProgramCache]: Analyzing trace with hash -101642147, now seen corresponding path program 1 times [2022-01-10 21:41:20,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:20,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011431306] [2022-01-10 21:41:20,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:20,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:20,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:20,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011431306] [2022-01-10 21:41:20,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011431306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:20,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:20,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:20,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759675202] [2022-01-10 21:41:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:20,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:20,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:20,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:20,354 INFO L87 Difference]: Start difference. First operand 580 states and 759 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:20,595 INFO L93 Difference]: Finished difference Result 801 states and 1050 transitions. [2022-01-10 21:41:20,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:20,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-01-10 21:41:20,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:20,599 INFO L225 Difference]: With dead ends: 801 [2022-01-10 21:41:20,599 INFO L226 Difference]: Without dead ends: 796 [2022-01-10 21:41:20,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:20,601 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 978 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:20,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 780 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:20,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2022-01-10 21:41:20,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 582. [2022-01-10 21:41:20,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 561 states have (on average 1.3547237076648841) internal successors, (760), 581 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 760 transitions. [2022-01-10 21:41:20,647 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 760 transitions. Word has length 31 [2022-01-10 21:41:20,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:20,648 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 760 transitions. [2022-01-10 21:41:20,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 760 transitions. [2022-01-10 21:41:20,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 21:41:20,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:20,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:20,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 21:41:20,649 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:20,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:20,649 INFO L85 PathProgramCache]: Analyzing trace with hash -101641122, now seen corresponding path program 1 times [2022-01-10 21:41:20,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:20,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091583348] [2022-01-10 21:41:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:20,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:20,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:20,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091583348] [2022-01-10 21:41:20,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091583348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:20,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:20,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:20,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754486704] [2022-01-10 21:41:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:20,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:20,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:20,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:20,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:20,779 INFO L87 Difference]: Start difference. First operand 582 states and 760 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:21,117 INFO L93 Difference]: Finished difference Result 1349 states and 1782 transitions. [2022-01-10 21:41:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-01-10 21:41:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:21,121 INFO L225 Difference]: With dead ends: 1349 [2022-01-10 21:41:21,121 INFO L226 Difference]: Without dead ends: 923 [2022-01-10 21:41:21,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:21,122 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 712 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:21,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 2162 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2022-01-10 21:41:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 602. [2022-01-10 21:41:21,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 581 states have (on average 1.3648881239242685) internal successors, (793), 601 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 793 transitions. [2022-01-10 21:41:21,172 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 793 transitions. Word has length 31 [2022-01-10 21:41:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:21,172 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 793 transitions. [2022-01-10 21:41:21,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 793 transitions. [2022-01-10 21:41:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 21:41:21,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:21,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:21,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 21:41:21,173 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash 541799950, now seen corresponding path program 1 times [2022-01-10 21:41:21,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:21,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782474004] [2022-01-10 21:41:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:21,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:21,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:21,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:21,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782474004] [2022-01-10 21:41:21,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782474004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:21,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:21,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:21,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088413687] [2022-01-10 21:41:21,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:21,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:21,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:21,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:21,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:21,238 INFO L87 Difference]: Start difference. First operand 602 states and 793 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:21,513 INFO L93 Difference]: Finished difference Result 655 states and 850 transitions. [2022-01-10 21:41:21,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 21:41:21,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-10 21:41:21,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:21,515 INFO L225 Difference]: With dead ends: 655 [2022-01-10 21:41:21,516 INFO L226 Difference]: Without dead ends: 632 [2022-01-10 21:41:21,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 21:41:21,516 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 439 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:21,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 1794 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-01-10 21:41:21,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 592. [2022-01-10 21:41:21,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 571 states have (on average 1.3677758318739055) internal successors, (781), 591 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 781 transitions. [2022-01-10 21:41:21,564 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 781 transitions. Word has length 32 [2022-01-10 21:41:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:21,565 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 781 transitions. [2022-01-10 21:41:21,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 781 transitions. [2022-01-10 21:41:21,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 21:41:21,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:21,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:21,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 21:41:21,566 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:21,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:21,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1696384427, now seen corresponding path program 1 times [2022-01-10 21:41:21,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:21,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45640681] [2022-01-10 21:41:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:21,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:21,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:21,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45640681] [2022-01-10 21:41:21,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45640681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:21,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:21,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:21,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508494213] [2022-01-10 21:41:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:21,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:21,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:21,605 INFO L87 Difference]: Start difference. First operand 592 states and 781 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:21,787 INFO L93 Difference]: Finished difference Result 1032 states and 1379 transitions. [2022-01-10 21:41:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:21,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-10 21:41:21,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:21,791 INFO L225 Difference]: With dead ends: 1032 [2022-01-10 21:41:21,791 INFO L226 Difference]: Without dead ends: 626 [2022-01-10 21:41:21,792 INFO L932 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 [2022-01-10 21:41:21,792 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 57 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:21,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 827 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:21,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-01-10 21:41:21,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2022-01-10 21:41:21,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 607 states have (on average 1.3624382207578254) internal successors, (827), 625 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 827 transitions. [2022-01-10 21:41:21,850 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 827 transitions. Word has length 32 [2022-01-10 21:41:21,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:21,850 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 827 transitions. [2022-01-10 21:41:21,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 827 transitions. [2022-01-10 21:41:21,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 21:41:21,851 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:21,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:21,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 21:41:21,851 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:21,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash 491686514, now seen corresponding path program 1 times [2022-01-10 21:41:21,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:21,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337807153] [2022-01-10 21:41:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:21,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:21,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:21,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337807153] [2022-01-10 21:41:21,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337807153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:21,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:21,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:21,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773790091] [2022-01-10 21:41:21,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:21,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:21,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:21,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:21,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:21,895 INFO L87 Difference]: Start difference. First operand 626 states and 827 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 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) [2022-01-10 21:41:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:21,973 INFO L93 Difference]: Finished difference Result 640 states and 841 transitions. [2022-01-10 21:41:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 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 [2022-01-10 21:41:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:21,975 INFO L225 Difference]: With dead ends: 640 [2022-01-10 21:41:21,975 INFO L226 Difference]: Without dead ends: 615 [2022-01-10 21:41:21,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:21,977 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 29 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:21,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 1802 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-01-10 21:41:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2022-01-10 21:41:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 596 states have (on average 1.3657718120805369) internal successors, (814), 614 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:22,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 814 transitions. [2022-01-10 21:41:22,039 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 814 transitions. Word has length 33 [2022-01-10 21:41:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:22,039 INFO L470 AbstractCegarLoop]: Abstraction has 615 states and 814 transitions. [2022-01-10 21:41:22,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 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) [2022-01-10 21:41:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 814 transitions. [2022-01-10 21:41:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 21:41:22,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:22,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:22,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 21:41:22,040 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:22,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:22,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1959829285, now seen corresponding path program 1 times [2022-01-10 21:41:22,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:22,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696204636] [2022-01-10 21:41:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:22,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:22,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:22,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696204636] [2022-01-10 21:41:22,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696204636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:22,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:22,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:22,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971303206] [2022-01-10 21:41:22,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:22,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:22,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:22,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:22,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:22,126 INFO L87 Difference]: Start difference. First operand 615 states and 814 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 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) [2022-01-10 21:41:22,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:22,441 INFO L93 Difference]: Finished difference Result 943 states and 1246 transitions. [2022-01-10 21:41:22,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:22,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 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 [2022-01-10 21:41:22,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:22,445 INFO L225 Difference]: With dead ends: 943 [2022-01-10 21:41:22,445 INFO L226 Difference]: Without dead ends: 925 [2022-01-10 21:41:22,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:22,446 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 462 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:22,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 2358 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-01-10 21:41:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 614. [2022-01-10 21:41:22,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 595 states have (on average 1.3647058823529412) internal successors, (812), 613 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 812 transitions. [2022-01-10 21:41:22,498 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 812 transitions. Word has length 33 [2022-01-10 21:41:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:22,499 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 812 transitions. [2022-01-10 21:41:22,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 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) [2022-01-10 21:41:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 812 transitions. [2022-01-10 21:41:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:22,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:22,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:22,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 21:41:22,500 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:22,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1540853487, now seen corresponding path program 1 times [2022-01-10 21:41:22,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:22,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290977630] [2022-01-10 21:41:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:22,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:22,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:22,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:22,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290977630] [2022-01-10 21:41:22,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290977630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:22,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:22,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:22,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209876411] [2022-01-10 21:41:22,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:22,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:22,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:22,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:22,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:22,541 INFO L87 Difference]: Start difference. First operand 614 states and 812 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) [2022-01-10 21:41:22,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:22,780 INFO L93 Difference]: Finished difference Result 914 states and 1214 transitions. [2022-01-10 21:41:22,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:22,780 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 [2022-01-10 21:41:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:22,783 INFO L225 Difference]: With dead ends: 914 [2022-01-10 21:41:22,783 INFO L226 Difference]: Without dead ends: 902 [2022-01-10 21:41:22,784 INFO L932 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 [2022-01-10 21:41:22,784 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 194 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:22,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 917 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:22,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-01-10 21:41:22,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 638. [2022-01-10 21:41:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 619 states have (on average 1.369951534733441) internal successors, (848), 637 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:22,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 848 transitions. [2022-01-10 21:41:22,852 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 848 transitions. Word has length 34 [2022-01-10 21:41:22,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:22,852 INFO L470 AbstractCegarLoop]: Abstraction has 638 states and 848 transitions. [2022-01-10 21:41:22,852 INFO L471 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) [2022-01-10 21:41:22,852 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 848 transitions. [2022-01-10 21:41:22,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:22,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:22,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:22,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 21:41:22,853 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash 582072696, now seen corresponding path program 1 times [2022-01-10 21:41:22,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:22,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416699692] [2022-01-10 21:41:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:22,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:22,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:22,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416699692] [2022-01-10 21:41:22,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416699692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:22,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:22,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:22,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257455172] [2022-01-10 21:41:22,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:22,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:22,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:22,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:22,903 INFO L87 Difference]: Start difference. First operand 638 states and 848 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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) [2022-01-10 21:41:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:23,106 INFO L93 Difference]: Finished difference Result 651 states and 861 transitions. [2022-01-10 21:41:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:23,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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 [2022-01-10 21:41:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:23,109 INFO L225 Difference]: With dead ends: 651 [2022-01-10 21:41:23,109 INFO L226 Difference]: Without dead ends: 631 [2022-01-10 21:41:23,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:23,110 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 444 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:23,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 669 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:23,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-01-10 21:41:23,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2022-01-10 21:41:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 612 states have (on average 1.369281045751634) internal successors, (838), 630 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 838 transitions. [2022-01-10 21:41:23,167 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 838 transitions. Word has length 34 [2022-01-10 21:41:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:23,168 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 838 transitions. [2022-01-10 21:41:23,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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) [2022-01-10 21:41:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 838 transitions. [2022-01-10 21:41:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:23,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:23,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:23,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 21:41:23,169 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash -14660366, now seen corresponding path program 1 times [2022-01-10 21:41:23,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:23,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136778746] [2022-01-10 21:41:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:23,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:23,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:23,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136778746] [2022-01-10 21:41:23,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136778746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:23,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:23,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:23,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416802418] [2022-01-10 21:41:23,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:23,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:23,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:23,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:23,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:23,211 INFO L87 Difference]: Start difference. First operand 631 states and 838 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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) [2022-01-10 21:41:23,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:23,404 INFO L93 Difference]: Finished difference Result 661 states and 870 transitions. [2022-01-10 21:41:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:23,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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 [2022-01-10 21:41:23,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:23,407 INFO L225 Difference]: With dead ends: 661 [2022-01-10 21:41:23,407 INFO L226 Difference]: Without dead ends: 628 [2022-01-10 21:41:23,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:23,408 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 438 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:23,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 699 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:23,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-01-10 21:41:23,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 626. [2022-01-10 21:41:23,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 607 states have (on average 1.3640856672158155) internal successors, (828), 625 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 828 transitions. [2022-01-10 21:41:23,474 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 828 transitions. Word has length 34 [2022-01-10 21:41:23,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:23,474 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 828 transitions. [2022-01-10 21:41:23,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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) [2022-01-10 21:41:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 828 transitions. [2022-01-10 21:41:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:23,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:23,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:23,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 21:41:23,475 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:23,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1107025005, now seen corresponding path program 1 times [2022-01-10 21:41:23,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:23,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742636432] [2022-01-10 21:41:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:23,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:23,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:23,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742636432] [2022-01-10 21:41:23,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742636432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:23,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:23,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:23,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474089496] [2022-01-10 21:41:23,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:23,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:23,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:23,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:23,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:23,512 INFO L87 Difference]: Start difference. First operand 626 states and 828 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) [2022-01-10 21:41:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:23,745 INFO L93 Difference]: Finished difference Result 808 states and 1069 transitions. [2022-01-10 21:41:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:23,745 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 [2022-01-10 21:41:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:23,748 INFO L225 Difference]: With dead ends: 808 [2022-01-10 21:41:23,748 INFO L226 Difference]: Without dead ends: 794 [2022-01-10 21:41:23,749 INFO L932 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 [2022-01-10 21:41:23,749 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 192 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:23,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 910 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:23,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-01-10 21:41:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 622. [2022-01-10 21:41:23,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 604 states have (on average 1.3609271523178808) internal successors, (822), 621 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:23,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 822 transitions. [2022-01-10 21:41:23,812 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 822 transitions. Word has length 34 [2022-01-10 21:41:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:23,812 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 822 transitions. [2022-01-10 21:41:23,813 INFO L471 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) [2022-01-10 21:41:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 822 transitions. [2022-01-10 21:41:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:23,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:23,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:23,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 21:41:23,813 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash -607067183, now seen corresponding path program 1 times [2022-01-10 21:41:23,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:23,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536401004] [2022-01-10 21:41:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:23,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:23,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:23,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:23,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536401004] [2022-01-10 21:41:23,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536401004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:23,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:23,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:23,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256118009] [2022-01-10 21:41:23,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:23,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:23,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:23,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:23,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:23,886 INFO L87 Difference]: Start difference. First operand 622 states and 822 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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) [2022-01-10 21:41:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:24,121 INFO L93 Difference]: Finished difference Result 640 states and 839 transitions. [2022-01-10 21:41:24,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 21:41:24,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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 [2022-01-10 21:41:24,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:24,123 INFO L225 Difference]: With dead ends: 640 [2022-01-10 21:41:24,123 INFO L226 Difference]: Without dead ends: 615 [2022-01-10 21:41:24,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 21:41:24,124 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 428 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:24,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 1600 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2022-01-10 21:41:24,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 600. [2022-01-10 21:41:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 582 states have (on average 1.3694158075601375) internal successors, (797), 599 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 797 transitions. [2022-01-10 21:41:24,189 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 797 transitions. Word has length 34 [2022-01-10 21:41:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:24,189 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 797 transitions. [2022-01-10 21:41:24,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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) [2022-01-10 21:41:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 797 transitions. [2022-01-10 21:41:24,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:24,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:24,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:24,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 21:41:24,190 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:24,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:24,190 INFO L85 PathProgramCache]: Analyzing trace with hash 520822612, now seen corresponding path program 1 times [2022-01-10 21:41:24,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:24,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44915522] [2022-01-10 21:41:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:24,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:24,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:24,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:24,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44915522] [2022-01-10 21:41:24,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44915522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:24,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:24,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:24,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963565614] [2022-01-10 21:41:24,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:24,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:24,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:24,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:24,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:24,233 INFO L87 Difference]: Start difference. First operand 600 states and 797 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:24,331 INFO L93 Difference]: Finished difference Result 1111 states and 1469 transitions. [2022-01-10 21:41:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:24,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-10 21:41:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:24,333 INFO L225 Difference]: With dead ends: 1111 [2022-01-10 21:41:24,334 INFO L226 Difference]: Without dead ends: 661 [2022-01-10 21:41:24,334 INFO L932 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 [2022-01-10 21:41:24,335 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 306 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:24,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 622 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:24,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-01-10 21:41:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 558. [2022-01-10 21:41:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 546 states have (on average 1.3278388278388278) internal successors, (725), 557 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 725 transitions. [2022-01-10 21:41:24,394 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 725 transitions. Word has length 35 [2022-01-10 21:41:24,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:24,395 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 725 transitions. [2022-01-10 21:41:24,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 725 transitions. [2022-01-10 21:41:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:24,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:24,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:24,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 21:41:24,396 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:24,397 INFO L85 PathProgramCache]: Analyzing trace with hash 912652185, now seen corresponding path program 1 times [2022-01-10 21:41:24,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:24,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284040033] [2022-01-10 21:41:24,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:24,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:24,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:24,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284040033] [2022-01-10 21:41:24,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284040033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:24,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:24,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:24,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354704731] [2022-01-10 21:41:24,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:24,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:24,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:24,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:24,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:24,505 INFO L87 Difference]: Start difference. First operand 558 states and 725 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:24,655 INFO L93 Difference]: Finished difference Result 905 states and 1175 transitions. [2022-01-10 21:41:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:24,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-10 21:41:24,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:24,659 INFO L225 Difference]: With dead ends: 905 [2022-01-10 21:41:24,659 INFO L226 Difference]: Without dead ends: 467 [2022-01-10 21:41:24,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:24,661 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 854 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:24,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 640 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:24,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-10 21:41:24,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 464. [2022-01-10 21:41:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 456 states have (on average 1.2828947368421053) internal successors, (585), 463 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 585 transitions. [2022-01-10 21:41:24,730 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 585 transitions. Word has length 35 [2022-01-10 21:41:24,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:24,730 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 585 transitions. [2022-01-10 21:41:24,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,731 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 585 transitions. [2022-01-10 21:41:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:24,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:24,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:24,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 21:41:24,731 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:24,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:24,732 INFO L85 PathProgramCache]: Analyzing trace with hash 42982336, now seen corresponding path program 1 times [2022-01-10 21:41:24,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:24,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021649735] [2022-01-10 21:41:24,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:24,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:24,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:24,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021649735] [2022-01-10 21:41:24,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021649735] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:24,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:24,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:24,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815685123] [2022-01-10 21:41:24,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:24,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:24,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:24,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:24,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:24,783 INFO L87 Difference]: Start difference. First operand 464 states and 585 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:24,936 INFO L93 Difference]: Finished difference Result 467 states and 587 transitions. [2022-01-10 21:41:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:24,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-10 21:41:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:24,938 INFO L225 Difference]: With dead ends: 467 [2022-01-10 21:41:24,938 INFO L226 Difference]: Without dead ends: 464 [2022-01-10 21:41:24,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:24,938 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 374 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:24,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 641 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-01-10 21:41:24,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2022-01-10 21:41:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 456 states have (on average 1.280701754385965) internal successors, (584), 463 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 584 transitions. [2022-01-10 21:41:24,996 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 584 transitions. Word has length 35 [2022-01-10 21:41:24,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:24,996 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 584 transitions. [2022-01-10 21:41:24,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:24,996 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 584 transitions. [2022-01-10 21:41:24,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:24,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:24,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:24,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 21:41:24,997 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash 42983361, now seen corresponding path program 1 times [2022-01-10 21:41:24,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:24,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942986117] [2022-01-10 21:41:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:24,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:25,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:25,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942986117] [2022-01-10 21:41:25,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942986117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:25,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:25,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:25,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253671788] [2022-01-10 21:41:25,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:25,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:25,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:25,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:25,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:25,077 INFO L87 Difference]: Start difference. First operand 464 states and 584 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:25,270 INFO L93 Difference]: Finished difference Result 482 states and 602 transitions. [2022-01-10 21:41:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-10 21:41:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:25,272 INFO L225 Difference]: With dead ends: 482 [2022-01-10 21:41:25,272 INFO L226 Difference]: Without dead ends: 463 [2022-01-10 21:41:25,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:25,273 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 39 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:25,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 2132 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-01-10 21:41:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2022-01-10 21:41:25,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 455 states have (on average 1.279120879120879) internal successors, (582), 462 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 582 transitions. [2022-01-10 21:41:25,328 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 582 transitions. Word has length 35 [2022-01-10 21:41:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:25,328 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 582 transitions. [2022-01-10 21:41:25,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 582 transitions. [2022-01-10 21:41:25,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 21:41:25,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:25,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:25,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 21:41:25,329 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:25,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:25,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1164224562, now seen corresponding path program 1 times [2022-01-10 21:41:25,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:25,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740521603] [2022-01-10 21:41:25,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:25,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:25,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:25,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740521603] [2022-01-10 21:41:25,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740521603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:25,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:25,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:25,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566159975] [2022-01-10 21:41:25,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:25,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:25,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:25,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:25,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:25,398 INFO L87 Difference]: Start difference. First operand 463 states and 582 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:25,555 INFO L93 Difference]: Finished difference Result 475 states and 594 transitions. [2022-01-10 21:41:25,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 21:41:25,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-01-10 21:41:25,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:25,557 INFO L225 Difference]: With dead ends: 475 [2022-01-10 21:41:25,557 INFO L226 Difference]: Without dead ends: 447 [2022-01-10 21:41:25,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 21:41:25,558 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 38 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:25,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 1750 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:25,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-01-10 21:41:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2022-01-10 21:41:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 439 states have (on average 1.284738041002278) internal successors, (564), 446 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 564 transitions. [2022-01-10 21:41:25,610 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 564 transitions. Word has length 36 [2022-01-10 21:41:25,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:25,610 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 564 transitions. [2022-01-10 21:41:25,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 564 transitions. [2022-01-10 21:41:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 21:41:25,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:25,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:25,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 21:41:25,611 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash 324703005, now seen corresponding path program 1 times [2022-01-10 21:41:25,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:25,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809319616] [2022-01-10 21:41:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:25,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:25,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:25,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809319616] [2022-01-10 21:41:25,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809319616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:25,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:25,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:25,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450676890] [2022-01-10 21:41:25,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:25,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:25,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:25,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:25,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:25,664 INFO L87 Difference]: Start difference. First operand 447 states and 564 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:25,818 INFO L93 Difference]: Finished difference Result 791 states and 1004 transitions. [2022-01-10 21:41:25,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:25,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-10 21:41:25,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:25,820 INFO L225 Difference]: With dead ends: 791 [2022-01-10 21:41:25,820 INFO L226 Difference]: Without dead ends: 447 [2022-01-10 21:41:25,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:25,821 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 383 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:25,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 512 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:25,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-01-10 21:41:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2022-01-10 21:41:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 439 states have (on average 1.2574031890660593) internal successors, (552), 446 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 552 transitions. [2022-01-10 21:41:25,876 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 552 transitions. Word has length 37 [2022-01-10 21:41:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:25,876 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 552 transitions. [2022-01-10 21:41:25,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 552 transitions. [2022-01-10 21:41:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 21:41:25,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:25,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:25,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 21:41:25,877 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:25,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1797183279, now seen corresponding path program 1 times [2022-01-10 21:41:25,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:25,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438766032] [2022-01-10 21:41:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:25,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:25,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:25,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438766032] [2022-01-10 21:41:25,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438766032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:25,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:25,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:41:25,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876518614] [2022-01-10 21:41:25,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:25,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:41:25,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:25,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:41:25,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:25,960 INFO L87 Difference]: Start difference. First operand 447 states and 552 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:26,234 INFO L93 Difference]: Finished difference Result 597 states and 743 transitions. [2022-01-10 21:41:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:26,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 21:41:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:26,236 INFO L225 Difference]: With dead ends: 597 [2022-01-10 21:41:26,236 INFO L226 Difference]: Without dead ends: 577 [2022-01-10 21:41:26,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-10 21:41:26,237 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 395 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:26,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 2210 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:26,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-01-10 21:41:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 446. [2022-01-10 21:41:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 438 states have (on average 1.2557077625570776) internal successors, (550), 445 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 550 transitions. [2022-01-10 21:41:26,287 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 550 transitions. Word has length 38 [2022-01-10 21:41:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:26,288 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 550 transitions. [2022-01-10 21:41:26,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 550 transitions. [2022-01-10 21:41:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 21:41:26,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:26,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:26,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 21:41:26,289 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:26,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1306515998, now seen corresponding path program 1 times [2022-01-10 21:41:26,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:26,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392679048] [2022-01-10 21:41:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:26,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:26,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:26,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:26,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392679048] [2022-01-10 21:41:26,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392679048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:26,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:26,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:26,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545291964] [2022-01-10 21:41:26,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:26,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:26,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:26,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:26,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:26,362 INFO L87 Difference]: Start difference. First operand 446 states and 550 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:26,578 INFO L93 Difference]: Finished difference Result 446 states and 550 transitions. [2022-01-10 21:41:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:26,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-10 21:41:26,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:26,580 INFO L225 Difference]: With dead ends: 446 [2022-01-10 21:41:26,580 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 21:41:26,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:26,580 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 390 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:26,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1533 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 21:41:26,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2022-01-10 21:41:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 411 states have (on average 1.2652068126520681) internal successors, (520), 417 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 520 transitions. [2022-01-10 21:41:26,632 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 520 transitions. Word has length 39 [2022-01-10 21:41:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:26,632 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 520 transitions. [2022-01-10 21:41:26,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 520 transitions. [2022-01-10 21:41:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 21:41:26,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:26,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:26,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 21:41:26,633 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash -487530312, now seen corresponding path program 1 times [2022-01-10 21:41:26,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:26,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320755486] [2022-01-10 21:41:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:26,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:26,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:26,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320755486] [2022-01-10 21:41:26,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320755486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:26,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:26,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:26,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672058309] [2022-01-10 21:41:26,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:26,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:26,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:26,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:26,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:26,668 INFO L87 Difference]: Start difference. First operand 418 states and 520 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:26,803 INFO L93 Difference]: Finished difference Result 911 states and 1148 transitions. [2022-01-10 21:41:26,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:26,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 21:41:26,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:26,804 INFO L225 Difference]: With dead ends: 911 [2022-01-10 21:41:26,804 INFO L226 Difference]: Without dead ends: 567 [2022-01-10 21:41:26,805 INFO L932 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 [2022-01-10 21:41:26,805 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 184 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:26,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 792 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-01-10 21:41:26,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 418. [2022-01-10 21:41:26,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 411 states have (on average 1.2652068126520681) internal successors, (520), 417 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 520 transitions. [2022-01-10 21:41:26,859 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 520 transitions. Word has length 40 [2022-01-10 21:41:26,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:26,859 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 520 transitions. [2022-01-10 21:41:26,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 520 transitions. [2022-01-10 21:41:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 21:41:26,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:26,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:26,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 21:41:26,860 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:26,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2139568344, now seen corresponding path program 1 times [2022-01-10 21:41:26,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:26,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346399860] [2022-01-10 21:41:26,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:26,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:26,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:26,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:26,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346399860] [2022-01-10 21:41:26,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346399860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:26,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:26,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:26,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724559241] [2022-01-10 21:41:26,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:26,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:26,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:26,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:26,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:26,954 INFO L87 Difference]: Start difference. First operand 418 states and 520 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:27,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:27,158 INFO L93 Difference]: Finished difference Result 847 states and 1058 transitions. [2022-01-10 21:41:27,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:27,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 21:41:27,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:27,159 INFO L225 Difference]: With dead ends: 847 [2022-01-10 21:41:27,159 INFO L226 Difference]: Without dead ends: 513 [2022-01-10 21:41:27,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:27,160 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 373 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:27,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1536 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-01-10 21:41:27,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 418. [2022-01-10 21:41:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 411 states have (on average 1.245742092457421) internal successors, (512), 417 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 512 transitions. [2022-01-10 21:41:27,231 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 512 transitions. Word has length 40 [2022-01-10 21:41:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:27,231 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 512 transitions. [2022-01-10 21:41:27,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 512 transitions. [2022-01-10 21:41:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 21:41:27,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:27,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:27,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 21:41:27,232 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1992785899, now seen corresponding path program 1 times [2022-01-10 21:41:27,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:27,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570212163] [2022-01-10 21:41:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:27,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:27,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:27,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570212163] [2022-01-10 21:41:27,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570212163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:27,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:27,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:27,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182200737] [2022-01-10 21:41:27,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:27,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:27,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:27,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:27,280 INFO L87 Difference]: Start difference. First operand 418 states and 512 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:27,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:27,431 INFO L93 Difference]: Finished difference Result 688 states and 848 transitions. [2022-01-10 21:41:27,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:27,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-10 21:41:27,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:27,433 INFO L225 Difference]: With dead ends: 688 [2022-01-10 21:41:27,433 INFO L226 Difference]: Without dead ends: 354 [2022-01-10 21:41:27,433 INFO L932 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 [2022-01-10 21:41:27,434 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 87 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:27,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 645 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-01-10 21:41:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2022-01-10 21:41:27,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 349 states have (on average 1.2263610315186246) internal successors, (428), 353 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:27,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 428 transitions. [2022-01-10 21:41:27,481 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 428 transitions. Word has length 47 [2022-01-10 21:41:27,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:27,481 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 428 transitions. [2022-01-10 21:41:27,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:27,481 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 428 transitions. [2022-01-10 21:41:27,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 21:41:27,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:27,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:27,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 21:41:27,482 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:27,482 INFO L85 PathProgramCache]: Analyzing trace with hash -764996126, now seen corresponding path program 1 times [2022-01-10 21:41:27,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:27,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531134004] [2022-01-10 21:41:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:27,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:27,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:27,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531134004] [2022-01-10 21:41:27,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531134004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:27,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:27,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 21:41:27,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483398682] [2022-01-10 21:41:27,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:27,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 21:41:27,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 21:41:27,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:27,583 INFO L87 Difference]: Start difference. First operand 354 states and 428 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:28,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:28,000 INFO L93 Difference]: Finished difference Result 885 states and 1091 transitions. [2022-01-10 21:41:28,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 21:41:28,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-01-10 21:41:28,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:28,003 INFO L225 Difference]: With dead ends: 885 [2022-01-10 21:41:28,003 INFO L226 Difference]: Without dead ends: 864 [2022-01-10 21:41:28,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-01-10 21:41:28,004 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 1494 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:28,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1494 Valid, 3146 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:28,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-01-10 21:41:28,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 360. [2022-01-10 21:41:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 355 states have (on average 1.2225352112676056) internal successors, (434), 359 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:28,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 434 transitions. [2022-01-10 21:41:28,064 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 434 transitions. Word has length 54 [2022-01-10 21:41:28,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:28,064 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 434 transitions. [2022-01-10 21:41:28,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 434 transitions. [2022-01-10 21:41:28,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 21:41:28,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:28,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:28,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 21:41:28,065 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:28,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash -783939896, now seen corresponding path program 1 times [2022-01-10 21:41:28,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:28,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740307762] [2022-01-10 21:41:28,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:28,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:28,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740307762] [2022-01-10 21:41:28,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740307762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:28,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:28,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 21:41:28,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528116499] [2022-01-10 21:41:28,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:28,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 21:41:28,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:28,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 21:41:28,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:28,195 INFO L87 Difference]: Start difference. First operand 360 states and 434 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:28,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:28,664 INFO L93 Difference]: Finished difference Result 885 states and 1090 transitions. [2022-01-10 21:41:28,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 21:41:28,665 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 21:41:28,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:28,667 INFO L225 Difference]: With dead ends: 885 [2022-01-10 21:41:28,667 INFO L226 Difference]: Without dead ends: 864 [2022-01-10 21:41:28,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-01-10 21:41:28,668 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 1048 mSDsluCounter, 5826 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 6591 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:28,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 6591 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-01-10 21:41:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 354. [2022-01-10 21:41:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 349 states have (on average 1.2234957020057307) internal successors, (427), 353 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:28,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 427 transitions. [2022-01-10 21:41:28,726 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 427 transitions. Word has length 55 [2022-01-10 21:41:28,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:28,726 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 427 transitions. [2022-01-10 21:41:28,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 427 transitions. [2022-01-10 21:41:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 21:41:28,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:28,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:28,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 21:41:28,727 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:28,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:28,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1834404625, now seen corresponding path program 1 times [2022-01-10 21:41:28,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:28,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840010541] [2022-01-10 21:41:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:28,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:28,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:28,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:28,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840010541] [2022-01-10 21:41:28,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840010541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:28,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:28,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 21:41:28,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936546468] [2022-01-10 21:41:28,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:28,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 21:41:28,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:28,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 21:41:28,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:28,834 INFO L87 Difference]: Start difference. First operand 354 states and 427 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:29,297 INFO L93 Difference]: Finished difference Result 862 states and 1067 transitions. [2022-01-10 21:41:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 21:41:29,298 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 21:41:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:29,299 INFO L225 Difference]: With dead ends: 862 [2022-01-10 21:41:29,299 INFO L226 Difference]: Without dead ends: 781 [2022-01-10 21:41:29,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-01-10 21:41:29,300 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 1777 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:29,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1777 Valid, 3127 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:29,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-01-10 21:41:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 564. [2022-01-10 21:41:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 559 states have (on average 1.220035778175313) internal successors, (682), 563 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:29,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 682 transitions. [2022-01-10 21:41:29,383 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 682 transitions. Word has length 59 [2022-01-10 21:41:29,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:29,383 INFO L470 AbstractCegarLoop]: Abstraction has 564 states and 682 transitions. [2022-01-10 21:41:29,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:29,383 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 682 transitions. [2022-01-10 21:41:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 21:41:29,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:29,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:29,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 21:41:29,384 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1746857906, now seen corresponding path program 1 times [2022-01-10 21:41:29,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:29,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119464666] [2022-01-10 21:41:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:29,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:29,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:29,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119464666] [2022-01-10 21:41:29,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119464666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:29,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:29,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 21:41:29,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111957792] [2022-01-10 21:41:29,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:29,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 21:41:29,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 21:41:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:29,485 INFO L87 Difference]: Start difference. First operand 564 states and 682 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:30,019 INFO L93 Difference]: Finished difference Result 1132 states and 1397 transitions. [2022-01-10 21:41:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 21:41:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 21:41:30,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:30,022 INFO L225 Difference]: With dead ends: 1132 [2022-01-10 21:41:30,022 INFO L226 Difference]: Without dead ends: 1051 [2022-01-10 21:41:30,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-01-10 21:41:30,023 INFO L933 BasicCegarLoop]: 715 mSDtfsCounter, 1280 mSDsluCounter, 5276 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 5991 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:30,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 5991 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-01-10 21:41:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 558. [2022-01-10 21:41:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 553 states have (on average 1.2206148282097649) internal successors, (675), 557 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 675 transitions. [2022-01-10 21:41:30,095 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 675 transitions. Word has length 60 [2022-01-10 21:41:30,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:30,095 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 675 transitions. [2022-01-10 21:41:30,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 675 transitions. [2022-01-10 21:41:30,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 21:41:30,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:30,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:30,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 21:41:30,095 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:30,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:30,096 INFO L85 PathProgramCache]: Analyzing trace with hash -683160348, now seen corresponding path program 1 times [2022-01-10 21:41:30,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:30,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245464442] [2022-01-10 21:41:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:30,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:30,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:30,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245464442] [2022-01-10 21:41:30,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245464442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:30,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:30,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:30,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551629235] [2022-01-10 21:41:30,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:30,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:30,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:30,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:30,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:30,152 INFO L87 Difference]: Start difference. First operand 558 states and 675 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:30,338 INFO L93 Difference]: Finished difference Result 982 states and 1193 transitions. [2022-01-10 21:41:30,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:30,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 21:41:30,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:30,339 INFO L225 Difference]: With dead ends: 982 [2022-01-10 21:41:30,339 INFO L226 Difference]: Without dead ends: 558 [2022-01-10 21:41:30,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:30,340 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 529 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:30,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 434 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-01-10 21:41:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2022-01-10 21:41:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 553 states have (on average 1.2043399638336347) internal successors, (666), 557 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 666 transitions. [2022-01-10 21:41:30,439 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 666 transitions. Word has length 60 [2022-01-10 21:41:30,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:30,439 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 666 transitions. [2022-01-10 21:41:30,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 666 transitions. [2022-01-10 21:41:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 21:41:30,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:30,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:30,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 21:41:30,440 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:30,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1400584099, now seen corresponding path program 1 times [2022-01-10 21:41:30,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:30,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555363013] [2022-01-10 21:41:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:30,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:30,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:30,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555363013] [2022-01-10 21:41:30,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555363013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:30,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:30,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:30,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220528854] [2022-01-10 21:41:30,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:30,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:30,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:30,493 INFO L87 Difference]: Start difference. First operand 558 states and 666 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:30,631 INFO L93 Difference]: Finished difference Result 900 states and 1083 transitions. [2022-01-10 21:41:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:30,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 21:41:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:30,632 INFO L225 Difference]: With dead ends: 900 [2022-01-10 21:41:30,632 INFO L226 Difference]: Without dead ends: 630 [2022-01-10 21:41:30,633 INFO L932 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 [2022-01-10 21:41:30,633 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 127 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:30,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 552 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-01-10 21:41:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 558. [2022-01-10 21:41:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 553 states have (on average 1.2007233273056057) internal successors, (664), 557 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 664 transitions. [2022-01-10 21:41:30,727 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 664 transitions. Word has length 60 [2022-01-10 21:41:30,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:30,727 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 664 transitions. [2022-01-10 21:41:30,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:30,727 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 664 transitions. [2022-01-10 21:41:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 21:41:30,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:30,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:30,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 21:41:30,728 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:30,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1095691545, now seen corresponding path program 1 times [2022-01-10 21:41:30,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:30,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754041921] [2022-01-10 21:41:30,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:30,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:30,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:30,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:30,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754041921] [2022-01-10 21:41:30,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754041921] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:30,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:30,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 21:41:30,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305304359] [2022-01-10 21:41:30,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:30,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 21:41:30,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:30,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 21:41:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:30,824 INFO L87 Difference]: Start difference. First operand 558 states and 664 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:31,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:31,120 INFO L93 Difference]: Finished difference Result 1132 states and 1340 transitions. [2022-01-10 21:41:31,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 21:41:31,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 21:41:31,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:31,122 INFO L225 Difference]: With dead ends: 1132 [2022-01-10 21:41:31,122 INFO L226 Difference]: Without dead ends: 1070 [2022-01-10 21:41:31,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-01-10 21:41:31,123 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 810 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 3999 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:31,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [810 Valid, 3999 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:31,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-01-10 21:41:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 566. [2022-01-10 21:41:31,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 561 states have (on average 1.1978609625668448) internal successors, (672), 565 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 672 transitions. [2022-01-10 21:41:31,199 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 672 transitions. Word has length 61 [2022-01-10 21:41:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:31,199 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 672 transitions. [2022-01-10 21:41:31,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 672 transitions. [2022-01-10 21:41:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 21:41:31,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:31,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:31,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 21:41:31,201 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:31,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1726150170, now seen corresponding path program 1 times [2022-01-10 21:41:31,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:31,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155192136] [2022-01-10 21:41:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:31,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:31,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:31,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155192136] [2022-01-10 21:41:31,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155192136] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:31,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:31,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 21:41:31,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742877913] [2022-01-10 21:41:31,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:31,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 21:41:31,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 21:41:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:31,285 INFO L87 Difference]: Start difference. First operand 566 states and 672 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:31,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:31,628 INFO L93 Difference]: Finished difference Result 1086 states and 1290 transitions. [2022-01-10 21:41:31,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 21:41:31,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 21:41:31,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:31,630 INFO L225 Difference]: With dead ends: 1086 [2022-01-10 21:41:31,630 INFO L226 Difference]: Without dead ends: 1024 [2022-01-10 21:41:31,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-01-10 21:41:31,631 INFO L933 BasicCegarLoop]: 748 mSDtfsCounter, 811 mSDsluCounter, 5159 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 5907 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:31,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 5907 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:31,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2022-01-10 21:41:31,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 512. [2022-01-10 21:41:31,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 507 states have (on average 1.2110453648915187) internal successors, (614), 511 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 614 transitions. [2022-01-10 21:41:31,726 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 614 transitions. Word has length 61 [2022-01-10 21:41:31,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:31,726 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 614 transitions. [2022-01-10 21:41:31,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:31,726 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 614 transitions. [2022-01-10 21:41:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 21:41:31,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:31,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:31,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 21:41:31,731 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:31,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:31,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1077357403, now seen corresponding path program 1 times [2022-01-10 21:41:31,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:31,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102735815] [2022-01-10 21:41:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:31,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:31,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:31,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:31,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102735815] [2022-01-10 21:41:31,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102735815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:31,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:31,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:31,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611540275] [2022-01-10 21:41:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:31,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:31,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:31,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:31,812 INFO L87 Difference]: Start difference. First operand 512 states and 614 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:32,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:32,110 INFO L93 Difference]: Finished difference Result 1019 states and 1224 transitions. [2022-01-10 21:41:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:32,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-10 21:41:32,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:32,112 INFO L225 Difference]: With dead ends: 1019 [2022-01-10 21:41:32,112 INFO L226 Difference]: Without dead ends: 678 [2022-01-10 21:41:32,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:32,113 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 446 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:32,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 1284 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-01-10 21:41:32,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 484. [2022-01-10 21:41:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 480 states have (on average 1.1854166666666666) internal successors, (569), 483 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:32,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 569 transitions. [2022-01-10 21:41:32,201 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 569 transitions. Word has length 64 [2022-01-10 21:41:32,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:32,201 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 569 transitions. [2022-01-10 21:41:32,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 569 transitions. [2022-01-10 21:41:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 21:41:32,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:32,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:32,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-10 21:41:32,202 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:32,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:32,202 INFO L85 PathProgramCache]: Analyzing trace with hash 995500186, now seen corresponding path program 1 times [2022-01-10 21:41:32,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:32,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225589666] [2022-01-10 21:41:32,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:32,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:32,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:32,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225589666] [2022-01-10 21:41:32,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225589666] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:32,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:32,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:32,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126487579] [2022-01-10 21:41:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:32,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:32,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:32,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:32,324 INFO L87 Difference]: Start difference. First operand 484 states and 569 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:32,680 INFO L93 Difference]: Finished difference Result 1046 states and 1244 transitions. [2022-01-10 21:41:32,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:32,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-01-10 21:41:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:32,682 INFO L225 Difference]: With dead ends: 1046 [2022-01-10 21:41:32,682 INFO L226 Difference]: Without dead ends: 1016 [2022-01-10 21:41:32,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:32,683 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 466 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:32,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 1735 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-01-10 21:41:32,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 482. [2022-01-10 21:41:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 478 states have (on average 1.1820083682008369) internal successors, (565), 481 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:32,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 565 transitions. [2022-01-10 21:41:32,784 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 565 transitions. Word has length 65 [2022-01-10 21:41:32,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:32,784 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 565 transitions. [2022-01-10 21:41:32,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 565 transitions. [2022-01-10 21:41:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 21:41:32,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:32,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:32,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-10 21:41:32,786 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash 670789871, now seen corresponding path program 1 times [2022-01-10 21:41:32,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:32,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137040142] [2022-01-10 21:41:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:32,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:32,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:32,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:32,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137040142] [2022-01-10 21:41:32,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137040142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:32,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:32,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 21:41:32,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535373595] [2022-01-10 21:41:32,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:32,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 21:41:32,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:32,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 21:41:32,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:32,891 INFO L87 Difference]: Start difference. First operand 482 states and 565 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:33,202 INFO L93 Difference]: Finished difference Result 962 states and 1125 transitions. [2022-01-10 21:41:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 21:41:33,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-10 21:41:33,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:33,205 INFO L225 Difference]: With dead ends: 962 [2022-01-10 21:41:33,205 INFO L226 Difference]: Without dead ends: 919 [2022-01-10 21:41:33,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-01-10 21:41:33,205 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 921 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:33,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 3274 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:33,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-01-10 21:41:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 530. [2022-01-10 21:41:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 526 states have (on average 1.173003802281369) internal successors, (617), 529 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 617 transitions. [2022-01-10 21:41:33,319 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 617 transitions. Word has length 66 [2022-01-10 21:41:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:33,319 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 617 transitions. [2022-01-10 21:41:33,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 617 transitions. [2022-01-10 21:41:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 21:41:33,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:33,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:33,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-10 21:41:33,320 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:33,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1137057650, now seen corresponding path program 1 times [2022-01-10 21:41:33,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:33,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418817801] [2022-01-10 21:41:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:33,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:33,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:33,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418817801] [2022-01-10 21:41:33,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418817801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:33,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:33,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 21:41:33,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999601579] [2022-01-10 21:41:33,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:33,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 21:41:33,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:33,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 21:41:33,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:33,416 INFO L87 Difference]: Start difference. First operand 530 states and 617 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:33,691 INFO L93 Difference]: Finished difference Result 729 states and 842 transitions. [2022-01-10 21:41:33,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 21:41:33,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-10 21:41:33,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:33,693 INFO L225 Difference]: With dead ends: 729 [2022-01-10 21:41:33,693 INFO L226 Difference]: Without dead ends: 686 [2022-01-10 21:41:33,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-01-10 21:41:33,694 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 922 mSDsluCounter, 4111 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:33,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 4765 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-01-10 21:41:33,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 249. [2022-01-10 21:41:33,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 246 states have (on average 1.146341463414634) internal successors, (282), 248 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 282 transitions. [2022-01-10 21:41:33,741 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 282 transitions. Word has length 66 [2022-01-10 21:41:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:33,741 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 282 transitions. [2022-01-10 21:41:33,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,741 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 282 transitions. [2022-01-10 21:41:33,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 21:41:33,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:33,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:33,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-10 21:41:33,742 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:33,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:33,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1301811462, now seen corresponding path program 1 times [2022-01-10 21:41:33,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:33,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567186415] [2022-01-10 21:41:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:33,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:33,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:33,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:33,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567186415] [2022-01-10 21:41:33,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567186415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:33,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:33,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:33,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651936284] [2022-01-10 21:41:33,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:33,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:33,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:33,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:33,808 INFO L87 Difference]: Start difference. First operand 249 states and 282 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:33,868 INFO L93 Difference]: Finished difference Result 253 states and 285 transitions. [2022-01-10 21:41:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:33,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 21:41:33,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:33,869 INFO L225 Difference]: With dead ends: 253 [2022-01-10 21:41:33,869 INFO L226 Difference]: Without dead ends: 249 [2022-01-10 21:41:33,869 INFO L932 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 [2022-01-10 21:41:33,870 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 104 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:33,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 325 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-01-10 21:41:33,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-01-10 21:41:33,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 246 states have (on average 1.1422764227642277) internal successors, (281), 248 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 281 transitions. [2022-01-10 21:41:33,925 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 281 transitions. Word has length 88 [2022-01-10 21:41:33,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:33,925 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 281 transitions. [2022-01-10 21:41:33,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:33,925 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 281 transitions. [2022-01-10 21:41:33,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 21:41:33,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:33,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:33,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-10 21:41:33,926 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:33,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:33,927 INFO L85 PathProgramCache]: Analyzing trace with hash 340619004, now seen corresponding path program 1 times [2022-01-10 21:41:33,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:33,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690900626] [2022-01-10 21:41:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:33,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:34,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:34,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690900626] [2022-01-10 21:41:34,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690900626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:34,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:34,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:34,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597940763] [2022-01-10 21:41:34,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:34,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:34,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:34,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:34,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:34,010 INFO L87 Difference]: Start difference. First operand 249 states and 281 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:34,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:34,219 INFO L93 Difference]: Finished difference Result 528 states and 600 transitions. [2022-01-10 21:41:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:34,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 21:41:34,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:34,220 INFO L225 Difference]: With dead ends: 528 [2022-01-10 21:41:34,220 INFO L226 Difference]: Without dead ends: 376 [2022-01-10 21:41:34,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:34,222 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 306 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:34,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 820 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:34,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-01-10 21:41:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 255. [2022-01-10 21:41:34,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 252 states have (on average 1.1388888888888888) internal successors, (287), 254 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:34,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 287 transitions. [2022-01-10 21:41:34,287 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 287 transitions. Word has length 92 [2022-01-10 21:41:34,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:34,288 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 287 transitions. [2022-01-10 21:41:34,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:34,288 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 287 transitions. [2022-01-10 21:41:34,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 21:41:34,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:34,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:34,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-10 21:41:34,289 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:34,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1907699717, now seen corresponding path program 1 times [2022-01-10 21:41:34,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:34,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11289847] [2022-01-10 21:41:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:34,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:34,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:34,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11289847] [2022-01-10 21:41:34,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11289847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:34,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:34,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:34,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656514472] [2022-01-10 21:41:34,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:34,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:34,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:34,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:34,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:34,388 INFO L87 Difference]: Start difference. First operand 255 states and 287 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:34,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:34,637 INFO L93 Difference]: Finished difference Result 475 states and 536 transitions. [2022-01-10 21:41:34,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 21:41:34,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-10 21:41:34,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:34,639 INFO L225 Difference]: With dead ends: 475 [2022-01-10 21:41:34,639 INFO L226 Difference]: Without dead ends: 370 [2022-01-10 21:41:34,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-10 21:41:34,639 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 408 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:34,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 964 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:34,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-01-10 21:41:34,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 248. [2022-01-10 21:41:34,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 1.1300813008130082) internal successors, (278), 247 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 278 transitions. [2022-01-10 21:41:34,698 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 278 transitions. Word has length 93 [2022-01-10 21:41:34,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:34,699 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 278 transitions. [2022-01-10 21:41:34,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:34,699 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 278 transitions. [2022-01-10 21:41:34,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-01-10 21:41:34,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:34,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:34,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-10 21:41:34,700 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:34,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1603715257, now seen corresponding path program 1 times [2022-01-10 21:41:34,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328428793] [2022-01-10 21:41:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:34,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:34,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:34,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328428793] [2022-01-10 21:41:34,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328428793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:34,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:34,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:34,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106901612] [2022-01-10 21:41:34,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:34,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:34,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:34,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:34,861 INFO L87 Difference]: Start difference. First operand 248 states and 278 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:35,084 INFO L93 Difference]: Finished difference Result 435 states and 489 transitions. [2022-01-10 21:41:35,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:35,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-01-10 21:41:35,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:35,085 INFO L225 Difference]: With dead ends: 435 [2022-01-10 21:41:35,085 INFO L226 Difference]: Without dead ends: 398 [2022-01-10 21:41:35,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:35,088 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 290 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:35,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 1117 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-01-10 21:41:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 246. [2022-01-10 21:41:35,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 244 states have (on average 1.1270491803278688) internal successors, (275), 245 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 275 transitions. [2022-01-10 21:41:35,149 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 275 transitions. Word has length 93 [2022-01-10 21:41:35,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:35,150 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 275 transitions. [2022-01-10 21:41:35,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 275 transitions. [2022-01-10 21:41:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 21:41:35,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:35,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:35,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-10 21:41:35,151 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1317415909, now seen corresponding path program 1 times [2022-01-10 21:41:35,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:35,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759462209] [2022-01-10 21:41:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:35,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:35,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:35,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:35,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759462209] [2022-01-10 21:41:35,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759462209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:35,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:35,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:35,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948584147] [2022-01-10 21:41:35,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:35,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:35,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:35,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:35,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:35,326 INFO L87 Difference]: Start difference. First operand 246 states and 275 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:35,480 INFO L93 Difference]: Finished difference Result 299 states and 336 transitions. [2022-01-10 21:41:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:35,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 21:41:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:35,481 INFO L225 Difference]: With dead ends: 299 [2022-01-10 21:41:35,481 INFO L226 Difference]: Without dead ends: 235 [2022-01-10 21:41:35,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:35,482 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 169 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:35,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 927 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:35,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-01-10 21:41:35,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 197. [2022-01-10 21:41:35,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 195 states have (on average 1.1025641025641026) internal successors, (215), 196 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 215 transitions. [2022-01-10 21:41:35,531 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 215 transitions. Word has length 114 [2022-01-10 21:41:35,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:35,531 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 215 transitions. [2022-01-10 21:41:35,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 215 transitions. [2022-01-10 21:41:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 21:41:35,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:35,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:35,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-10 21:41:35,532 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:35,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:35,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1478112836, now seen corresponding path program 1 times [2022-01-10 21:41:35,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:35,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118230446] [2022-01-10 21:41:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:35,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:35,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:35,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118230446] [2022-01-10 21:41:35,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118230446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:35,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:35,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:35,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224071030] [2022-01-10 21:41:35,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:35,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:35,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:35,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:35,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:35,683 INFO L87 Difference]: Start difference. First operand 197 states and 215 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:35,896 INFO L93 Difference]: Finished difference Result 331 states and 362 transitions. [2022-01-10 21:41:35,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:35,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 21:41:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:35,897 INFO L225 Difference]: With dead ends: 331 [2022-01-10 21:41:35,897 INFO L226 Difference]: Without dead ends: 286 [2022-01-10 21:41:35,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:35,898 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 217 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:35,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 1018 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-01-10 21:41:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 191. [2022-01-10 21:41:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 189 states have (on average 1.1005291005291005) internal successors, (208), 190 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 208 transitions. [2022-01-10 21:41:35,946 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 208 transitions. Word has length 116 [2022-01-10 21:41:35,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:35,946 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 208 transitions. [2022-01-10 21:41:35,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:35,947 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 208 transitions. [2022-01-10 21:41:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 21:41:35,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:35,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:35,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-10 21:41:35,948 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:35,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:35,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1157312849, now seen corresponding path program 1 times [2022-01-10 21:41:35,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:35,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295548169] [2022-01-10 21:41:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:35,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:36,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:36,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295548169] [2022-01-10 21:41:36,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295548169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:36,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:36,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:36,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203572498] [2022-01-10 21:41:36,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:36,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:36,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:36,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:36,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:36,127 INFO L87 Difference]: Start difference. First operand 191 states and 208 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:36,235 INFO L93 Difference]: Finished difference Result 287 states and 313 transitions. [2022-01-10 21:41:36,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:36,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-10 21:41:36,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:36,236 INFO L225 Difference]: With dead ends: 287 [2022-01-10 21:41:36,236 INFO L226 Difference]: Without dead ends: 227 [2022-01-10 21:41:36,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:36,236 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 89 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:36,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 702 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-01-10 21:41:36,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 190. [2022-01-10 21:41:36,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 188 states have (on average 1.0957446808510638) internal successors, (206), 189 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 206 transitions. [2022-01-10 21:41:36,280 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 206 transitions. Word has length 121 [2022-01-10 21:41:36,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:36,281 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 206 transitions. [2022-01-10 21:41:36,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 206 transitions. [2022-01-10 21:41:36,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 21:41:36,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:36,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:36,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-10 21:41:36,282 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:36,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:36,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1660330664, now seen corresponding path program 1 times [2022-01-10 21:41:36,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:36,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49493894] [2022-01-10 21:41:36,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:36,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:36,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:36,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:36,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49493894] [2022-01-10 21:41:36,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49493894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:36,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:36,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:36,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606311589] [2022-01-10 21:41:36,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:36,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:36,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:36,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:36,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:36,381 INFO L87 Difference]: Start difference. First operand 190 states and 206 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:36,493 INFO L93 Difference]: Finished difference Result 277 states and 301 transitions. [2022-01-10 21:41:36,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:36,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-10 21:41:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:36,495 INFO L225 Difference]: With dead ends: 277 [2022-01-10 21:41:36,495 INFO L226 Difference]: Without dead ends: 217 [2022-01-10 21:41:36,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:36,495 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 91 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:36,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 748 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-01-10 21:41:36,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 180. [2022-01-10 21:41:36,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 1.0898876404494382) internal successors, (194), 179 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 194 transitions. [2022-01-10 21:41:36,556 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 194 transitions. Word has length 122 [2022-01-10 21:41:36,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:36,556 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 194 transitions. [2022-01-10 21:41:36,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 194 transitions. [2022-01-10 21:41:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 21:41:36,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:36,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:36,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-10 21:41:36,558 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (and 48 more)] === [2022-01-10 21:41:36,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash 553695048, now seen corresponding path program 1 times [2022-01-10 21:41:36,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:36,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023325212] [2022-01-10 21:41:36,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:36,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:36,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:36,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023325212] [2022-01-10 21:41:36,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023325212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:36,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:36,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:36,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338368574] [2022-01-10 21:41:36,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:36,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:36,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:36,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:36,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:36,777 INFO L87 Difference]: Start difference. First operand 180 states and 194 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:36,883 INFO L93 Difference]: Finished difference Result 205 states and 223 transitions. [2022-01-10 21:41:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:36,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-01-10 21:41:36,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:36,884 INFO L225 Difference]: With dead ends: 205 [2022-01-10 21:41:36,884 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 21:41:36,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:36,885 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 121 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:36,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 602 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 21:41:36,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 21:41:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 21:41:36,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 122 [2022-01-10 21:41:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:36,886 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 21:41:36,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 21:41:36,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 21:41:36,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (50 of 51 remaining) [2022-01-10 21:41:36,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION (49 of 51 remaining) [2022-01-10 21:41:36,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (48 of 51 remaining) [2022-01-10 21:41:36,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION (47 of 51 remaining) [2022-01-10 21:41:36,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION (46 of 51 remaining) [2022-01-10 21:41:36,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION (45 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (44 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (43 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (42 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (41 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (40 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (39 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (38 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (37 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (36 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (35 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION (34 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION (33 of 51 remaining) [2022-01-10 21:41:36,890 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION (32 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION (31 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION (30 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (29 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (28 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (27 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (26 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (25 of 51 remaining) [2022-01-10 21:41:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (24 of 51 remaining) [2022-01-10 21:41:36,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION (23 of 51 remaining) [2022-01-10 21:41:36,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (22 of 51 remaining) [2022-01-10 21:41:36,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (21 of 51 remaining) [2022-01-10 21:41:36,892 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (20 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (19 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (18 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (17 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (16 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (15 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (14 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (13 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (12 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (11 of 51 remaining) [2022-01-10 21:41:36,893 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (10 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (9 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (8 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (7 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (6 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (5 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (4 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (3 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (2 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (1 of 51 remaining) [2022-01-10 21:41:36,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (0 of 51 remaining) [2022-01-10 21:41:36,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-10 21:41:36,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.