/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/floppy_simpl4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 21:41:41,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 21:41:41,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 21:41:41,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 21:41:41,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 21:41:41,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 21:41:41,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 21:41:41,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 21:41:41,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 21:41:41,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 21:41:41,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 21:41:41,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 21:41:41,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 21:41:41,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 21:41:41,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 21:41:41,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 21:41:41,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 21:41:41,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 21:41:41,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 21:41:41,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 21:41:41,510 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 21:41:41,540 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 21:41:41,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 21:41:41,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 21:41:41,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 21:41:41,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 21:41:41,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 21:41:41,542 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 21:41:41,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 21:41:41,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 21:41:41,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 21:41:41,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 21:41:41,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 21:41:41,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 21:41:41,543 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 21:41:41,543 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 21:41:41,544 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 21:41:41,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 21:41:41,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 21:41:41,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 21:41:41,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 21:41:41,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 21:41:41,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:41:41,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 21:41:41,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 21:41:41,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 21:41:41,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 21:41:41,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 21:41:41,546 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 21:41:41,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 21:41:41,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 21:41:41,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 21:41:41,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 21:41:41,547 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 21:41:41,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 21:41:41,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 21:41:41,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 21:41:41,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 21:41:41,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 21:41:41,775 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 21:41:41,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-2.c [2022-01-10 21:41:41,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c81621d/c3a90f1926c241c4a4b27561f44cc910/FLAG1d3f21626 [2022-01-10 21:41:42,229 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 21:41:42,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-2.c [2022-01-10 21:41:42,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c81621d/c3a90f1926c241c4a4b27561f44cc910/FLAG1d3f21626 [2022-01-10 21:41:42,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53c81621d/c3a90f1926c241c4a4b27561f44cc910 [2022-01-10 21:41:42,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 21:41:42,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 21:41:42,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 21:41:42,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 21:41:42,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 21:41:42,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b506df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42, skipping insertion in model container [2022-01-10 21:41:42,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 21:41:42,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 21:41:42,557 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/floppy_simpl4.cil-2.c[48585,48598] [2022-01-10 21:41:42,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:41:42,569 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 21:41:42,656 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/floppy_simpl4.cil-2.c[48585,48598] [2022-01-10 21:41:42,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:41:42,667 INFO L208 MainTranslator]: Completed translation [2022-01-10 21:41:42,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42 WrapperNode [2022-01-10 21:41:42,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 21:41:42,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 21:41:42,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 21:41:42,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 21:41:42,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,766 INFO L137 Inliner]: procedures = 41, calls = 76, calls flagged for inlining = 71, calls inlined = 137, statements flattened = 2437 [2022-01-10 21:41:42,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 21:41:42,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 21:41:42,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 21:41:42,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 21:41:42,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 21:41:42,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 21:41:42,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 21:41:42,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 21:41:42,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (1/1) ... [2022-01-10 21:41:42,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:41:42,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:41:42,847 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 21:41:42,873 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 21:41:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 21:41:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 21:41:42,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 21:41:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 21:41:43,118 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 21:41:43,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 21:41:43,126 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,135 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,137 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,141 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,142 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,143 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,146 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,149 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,151 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,152 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,153 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,154 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,155 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,157 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,158 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,158 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,160 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,161 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,161 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,162 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,163 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,164 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,166 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,168 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,169 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,171 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,172 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,173 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,173 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,174 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 21:41:43,998 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##658: assume !false; [2022-01-10 21:41:43,999 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##657: assume false; [2022-01-10 21:41:43,999 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##665: assume !false; [2022-01-10 21:41:43,999 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##664: assume false; [2022-01-10 21:41:43,999 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##683: assume false; [2022-01-10 21:41:44,000 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume !false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##640: assume !false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2022-01-10 21:41:44,001 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2022-01-10 21:41:44,002 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume !false; [2022-01-10 21:41:44,002 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##284: assume false; [2022-01-10 21:41:44,002 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2022-01-10 21:41:44,002 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2022-01-10 21:41:44,002 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2022-01-10 21:41:44,002 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2022-01-10 21:41:44,002 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##369: assume !false; [2022-01-10 21:41:44,003 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2022-01-10 21:41:44,003 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2022-01-10 21:41:44,003 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-01-10 21:41:44,003 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-01-10 21:41:44,003 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##357: assume false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##358: assume !false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##368: assume false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume !false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##403: assume false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2022-01-10 21:41:44,004 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2022-01-10 21:41:44,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2022-01-10 21:41:44,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2022-01-10 21:41:44,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##485: assume !false; [2022-01-10 21:41:44,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##484: assume false; [2022-01-10 21:41:44,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##524: assume !false; [2022-01-10 21:41:44,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##523: assume false; [2022-01-10 21:41:44,005 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##558: assume !false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##557: assume false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##145: assume !false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2022-01-10 21:41:44,006 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2022-01-10 21:41:44,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2022-01-10 21:41:44,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2022-01-10 21:41:44,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2022-01-10 21:41:44,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2022-01-10 21:41:44,008 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2022-01-10 21:41:44,008 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 21:41:44,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 21:41:44,021 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 21:41:44,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:41:44 BoogieIcfgContainer [2022-01-10 21:41:44,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 21:41:44,024 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 21:41:44,024 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 21:41:44,025 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 21:41:44,027 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:41:44" (1/1) ... [2022-01-10 21:41:44,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:41:44 BasicIcfg [2022-01-10 21:41:44,348 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 21:41:44,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 21:41:44,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 21:41:44,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 21:41:44,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:41:42" (1/4) ... [2022-01-10 21:41:44,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51272877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:41:44, skipping insertion in model container [2022-01-10 21:41:44,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:41:42" (2/4) ... [2022-01-10 21:41:44,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51272877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:41:44, skipping insertion in model container [2022-01-10 21:41:44,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:41:44" (3/4) ... [2022-01-10 21:41:44,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51272877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:41:44, skipping insertion in model container [2022-01-10 21:41:44,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:41:44" (4/4) ... [2022-01-10 21:41:44,353 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-2.cTransformedIcfg [2022-01-10 21:41:44,358 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 21:41:44,358 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2022-01-10 21:41:44,402 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 21:41:44,406 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 21:41:44,406 INFO L340 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-01-10 21:41:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 639 states, 585 states have (on average 1.5316239316239317) internal successors, (896), 638 states have internal predecessors, (896), 0 states have call successors, (0), 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 21:41:44,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 21:41:44,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:44,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:44,438 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:44,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:44,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1448027614, now seen corresponding path program 1 times [2022-01-10 21:41:44,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:44,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054281166] [2022-01-10 21:41:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:44,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:44,709 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 21:41:44,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:44,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054281166] [2022-01-10 21:41:44,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054281166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:44,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:44,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:44,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684263010] [2022-01-10 21:41:44,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:44,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:44,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:44,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:44,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:44,754 INFO L87 Difference]: Start difference. First operand has 639 states, 585 states have (on average 1.5316239316239317) internal successors, (896), 638 states have internal predecessors, (896), 0 states have call successors, (0), 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 21:41:45,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:45,062 INFO L93 Difference]: Finished difference Result 1213 states and 1703 transitions. [2022-01-10 21:41:45,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:45,064 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 21:41:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:45,075 INFO L225 Difference]: With dead ends: 1213 [2022-01-10 21:41:45,076 INFO L226 Difference]: Without dead ends: 702 [2022-01-10 21:41:45,080 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 21:41:45,082 INFO L933 BasicCegarLoop]: 863 mSDtfsCounter, 434 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:45,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1214 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-01-10 21:41:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 679. [2022-01-10 21:41:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 645 states have (on average 1.4232558139534883) internal successors, (918), 678 states have internal predecessors, (918), 0 states have call successors, (0), 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 21:41:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 918 transitions. [2022-01-10 21:41:45,135 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 918 transitions. Word has length 12 [2022-01-10 21:41:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:45,135 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 918 transitions. [2022-01-10 21:41:45,136 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 21:41:45,136 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 918 transitions. [2022-01-10 21:41:45,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 21:41:45,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:45,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:45,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 21:41:45,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:45,137 INFO L85 PathProgramCache]: Analyzing trace with hash -54459679, now seen corresponding path program 1 times [2022-01-10 21:41:45,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:45,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120979244] [2022-01-10 21:41:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:45,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:45,169 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 21:41:45,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:45,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120979244] [2022-01-10 21:41:45,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120979244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:45,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:45,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:45,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624634724] [2022-01-10 21:41:45,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:45,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:45,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:45,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:45,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:45,171 INFO L87 Difference]: Start difference. First operand 679 states and 918 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 21:41:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:45,324 INFO L93 Difference]: Finished difference Result 698 states and 940 transitions. [2022-01-10 21:41:45,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:45,324 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 21:41:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:45,328 INFO L225 Difference]: With dead ends: 698 [2022-01-10 21:41:45,328 INFO L226 Difference]: Without dead ends: 679 [2022-01-10 21:41:45,333 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 21:41:45,334 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 4 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:45,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1298 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-01-10 21:41:45,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-01-10 21:41:45,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 645 states have (on average 1.4217054263565891) internal successors, (917), 678 states have internal predecessors, (917), 0 states have call successors, (0), 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 21:41:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 917 transitions. [2022-01-10 21:41:45,364 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 917 transitions. Word has length 12 [2022-01-10 21:41:45,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:45,364 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 917 transitions. [2022-01-10 21:41:45,365 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 21:41:45,365 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 917 transitions. [2022-01-10 21:41:45,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 21:41:45,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:45,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:41:45,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 21:41:45,366 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:45,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:45,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1995239899, now seen corresponding path program 1 times [2022-01-10 21:41:45,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:45,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676812099] [2022-01-10 21:41:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:45,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:45,445 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 21:41:45,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:45,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676812099] [2022-01-10 21:41:45,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676812099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:45,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:45,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:45,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137377911] [2022-01-10 21:41:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:45,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:45,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:45,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:45,448 INFO L87 Difference]: Start difference. First operand 679 states and 917 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 21:41:45,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:45,475 INFO L93 Difference]: Finished difference Result 775 states and 1034 transitions. [2022-01-10 21:41:45,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:45,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-10 21:41:45,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:45,478 INFO L225 Difference]: With dead ends: 775 [2022-01-10 21:41:45,478 INFO L226 Difference]: Without dead ends: 751 [2022-01-10 21:41:45,478 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 21:41:45,479 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 704 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:45,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 813 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:45,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-01-10 21:41:45,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 696. [2022-01-10 21:41:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 665 states have (on average 1.4255639097744361) internal successors, (948), 695 states have internal predecessors, (948), 0 states have call successors, (0), 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 21:41:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 948 transitions. [2022-01-10 21:41:45,525 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 948 transitions. Word has length 18 [2022-01-10 21:41:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:45,525 INFO L470 AbstractCegarLoop]: Abstraction has 696 states and 948 transitions. [2022-01-10 21:41:45,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 21:41:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 948 transitions. [2022-01-10 21:41:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 21:41:45,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:45,526 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] [2022-01-10 21:41:45,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 21:41:45,527 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:45,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:45,527 INFO L85 PathProgramCache]: Analyzing trace with hash -525905178, now seen corresponding path program 1 times [2022-01-10 21:41:45,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:45,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87338486] [2022-01-10 21:41:45,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:45,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:45,557 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 21:41:45,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:45,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87338486] [2022-01-10 21:41:45,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87338486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:45,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:45,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:45,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190205405] [2022-01-10 21:41:45,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:45,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:45,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:45,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:45,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:45,559 INFO L87 Difference]: Start difference. First operand 696 states and 948 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21:41:45,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:45,706 INFO L93 Difference]: Finished difference Result 724 states and 982 transitions. [2022-01-10 21:41:45,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:45,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 21:41:45,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:45,709 INFO L225 Difference]: With dead ends: 724 [2022-01-10 21:41:45,709 INFO L226 Difference]: Without dead ends: 719 [2022-01-10 21:41:45,709 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 21:41:45,710 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 33 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:45,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 1267 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:45,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-01-10 21:41:45,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2022-01-10 21:41:45,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 688 states have (on average 1.4200581395348837) internal successors, (977), 718 states have internal predecessors, (977), 0 states have call successors, (0), 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 21:41:45,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 977 transitions. [2022-01-10 21:41:45,727 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 977 transitions. Word has length 21 [2022-01-10 21:41:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:45,727 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 977 transitions. [2022-01-10 21:41:45,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21:41:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 977 transitions. [2022-01-10 21:41:45,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 21:41:45,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:45,728 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] [2022-01-10 21:41:45,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 21:41:45,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:45,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash -362481359, now seen corresponding path program 1 times [2022-01-10 21:41:45,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:45,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098422829] [2022-01-10 21:41:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:45,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:45,761 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 21:41:45,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:45,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098422829] [2022-01-10 21:41:45,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098422829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:45,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:45,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:45,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135619078] [2022-01-10 21:41:45,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:45,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:45,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:45,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:45,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:45,762 INFO L87 Difference]: Start difference. First operand 719 states and 977 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21:41:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:45,813 INFO L93 Difference]: Finished difference Result 1226 states and 1657 transitions. [2022-01-10 21:41:45,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:45,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 21:41:45,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:45,816 INFO L225 Difference]: With dead ends: 1226 [2022-01-10 21:41:45,816 INFO L226 Difference]: Without dead ends: 854 [2022-01-10 21:41:45,817 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 21:41:45,817 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 590 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:45,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 850 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:45,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-01-10 21:41:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 692. [2022-01-10 21:41:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 671 states have (on average 1.406855439642325) internal successors, (944), 691 states have internal predecessors, (944), 0 states have call successors, (0), 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 21:41:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 944 transitions. [2022-01-10 21:41:45,837 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 944 transitions. Word has length 21 [2022-01-10 21:41:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:45,837 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 944 transitions. [2022-01-10 21:41:45,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21:41:45,837 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 944 transitions. [2022-01-10 21:41:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 21:41:45,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:45,838 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 21:41:45,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 21:41:45,838 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash 877827723, now seen corresponding path program 1 times [2022-01-10 21:41:45,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:45,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166276230] [2022-01-10 21:41:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:45,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:45,874 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 21:41:45,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:45,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166276230] [2022-01-10 21:41:45,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166276230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:45,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:45,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:45,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295688732] [2022-01-10 21:41:45,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:45,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:45,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:45,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:45,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:45,876 INFO L87 Difference]: Start difference. First operand 692 states and 944 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 21:41:45,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:45,913 INFO L93 Difference]: Finished difference Result 704 states and 957 transitions. [2022-01-10 21:41:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:45,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 21:41:45,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:45,916 INFO L225 Difference]: With dead ends: 704 [2022-01-10 21:41:45,916 INFO L226 Difference]: Without dead ends: 684 [2022-01-10 21:41:45,916 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 21:41:45,918 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 639 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:45,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 1311 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-01-10 21:41:45,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2022-01-10 21:41:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 663 states have (on average 1.4087481146304677) internal successors, (934), 683 states have internal predecessors, (934), 0 states have call successors, (0), 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 21:41:45,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 934 transitions. [2022-01-10 21:41:45,944 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 934 transitions. Word has length 22 [2022-01-10 21:41:45,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:45,944 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 934 transitions. [2022-01-10 21:41:45,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 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 21:41:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 934 transitions. [2022-01-10 21:41:45,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 21:41:45,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:45,945 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] [2022-01-10 21:41:45,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 21:41:45,945 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:45,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:45,946 INFO L85 PathProgramCache]: Analyzing trace with hash 210648265, now seen corresponding path program 1 times [2022-01-10 21:41:45,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:45,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890457245] [2022-01-10 21:41:45,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:45,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:46,001 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 21:41:46,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:46,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890457245] [2022-01-10 21:41:46,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890457245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:46,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:46,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:46,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465842351] [2022-01-10 21:41:46,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:46,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:46,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:46,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:46,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:46,002 INFO L87 Difference]: Start difference. First operand 684 states and 934 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 21:41:46,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:46,142 INFO L93 Difference]: Finished difference Result 684 states and 934 transitions. [2022-01-10 21:41:46,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:46,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-01-10 21:41:46,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:46,144 INFO L225 Difference]: With dead ends: 684 [2022-01-10 21:41:46,144 INFO L226 Difference]: Without dead ends: 668 [2022-01-10 21:41:46,145 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 21:41:46,147 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 97 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:46,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 990 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-01-10 21:41:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2022-01-10 21:41:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 655 states have (on average 1.4) internal successors, (917), 667 states have internal predecessors, (917), 0 states have call successors, (0), 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 21:41:46,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 917 transitions. [2022-01-10 21:41:46,177 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 917 transitions. Word has length 25 [2022-01-10 21:41:46,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:46,177 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 917 transitions. [2022-01-10 21:41:46,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 21:41:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 917 transitions. [2022-01-10 21:41:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 21:41:46,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:46,178 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] [2022-01-10 21:41:46,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 21:41:46,178 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash -723765965, now seen corresponding path program 1 times [2022-01-10 21:41:46,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:46,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851803100] [2022-01-10 21:41:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:46,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:46,220 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 21:41:46,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:46,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851803100] [2022-01-10 21:41:46,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851803100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:46,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:46,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:46,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231845208] [2022-01-10 21:41:46,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:46,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:46,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:46,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:46,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:46,221 INFO L87 Difference]: Start difference. First operand 668 states and 917 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 21:41:46,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:46,257 INFO L93 Difference]: Finished difference Result 681 states and 931 transitions. [2022-01-10 21:41:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:46,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-10 21:41:46,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:46,261 INFO L225 Difference]: With dead ends: 681 [2022-01-10 21:41:46,261 INFO L226 Difference]: Without dead ends: 666 [2022-01-10 21:41:46,261 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 21:41:46,262 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 16 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:46,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 1861 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:46,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-01-10 21:41:46,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2022-01-10 21:41:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 653 states have (on average 1.3996937212863707) internal successors, (914), 665 states have internal predecessors, (914), 0 states have call successors, (0), 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 21:41:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 914 transitions. [2022-01-10 21:41:46,281 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 914 transitions. Word has length 26 [2022-01-10 21:41:46,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:46,281 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 914 transitions. [2022-01-10 21:41:46,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 21:41:46,281 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 914 transitions. [2022-01-10 21:41:46,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 21:41:46,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:46,282 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] [2022-01-10 21:41:46,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 21:41:46,282 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:46,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1512514622, now seen corresponding path program 1 times [2022-01-10 21:41:46,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:46,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091263232] [2022-01-10 21:41:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:46,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:46,313 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 21:41:46,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:46,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091263232] [2022-01-10 21:41:46,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091263232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:46,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:46,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:46,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639812178] [2022-01-10 21:41:46,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:46,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:46,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:46,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:46,314 INFO L87 Difference]: Start difference. First operand 666 states and 914 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 21:41:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:46,473 INFO L93 Difference]: Finished difference Result 865 states and 1180 transitions. [2022-01-10 21:41:46,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:46,474 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 21:41:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:46,476 INFO L225 Difference]: With dead ends: 865 [2022-01-10 21:41:46,476 INFO L226 Difference]: Without dead ends: 857 [2022-01-10 21:41:46,477 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 21:41:46,477 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 128 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:46,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1205 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-01-10 21:41:46,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 684. [2022-01-10 21:41:46,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 671 states have (on average 1.4023845007451565) internal successors, (941), 683 states have internal predecessors, (941), 0 states have call successors, (0), 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 21:41:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 941 transitions. [2022-01-10 21:41:46,501 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 941 transitions. Word has length 27 [2022-01-10 21:41:46,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:46,501 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 941 transitions. [2022-01-10 21:41:46,501 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 21:41:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 941 transitions. [2022-01-10 21:41:46,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 21:41:46,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:46,502 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] [2022-01-10 21:41:46,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 21:41:46,502 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:46,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:46,503 INFO L85 PathProgramCache]: Analyzing trace with hash 355662828, now seen corresponding path program 1 times [2022-01-10 21:41:46,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:46,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800680347] [2022-01-10 21:41:46,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:46,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:46,541 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 21:41:46,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:46,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800680347] [2022-01-10 21:41:46,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800680347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:46,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:46,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:46,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086284985] [2022-01-10 21:41:46,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:46,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:46,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:46,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:46,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:46,543 INFO L87 Difference]: Start difference. First operand 684 states and 941 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 21:41:46,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:46,593 INFO L93 Difference]: Finished difference Result 792 states and 1069 transitions. [2022-01-10 21:41:46,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:46,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-01-10 21:41:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:46,596 INFO L225 Difference]: With dead ends: 792 [2022-01-10 21:41:46,596 INFO L226 Difference]: Without dead ends: 739 [2022-01-10 21:41:46,596 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 21:41:46,597 INFO L933 BasicCegarLoop]: 659 mSDtfsCounter, 56 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:46,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 1913 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:46,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-01-10 21:41:46,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 686. [2022-01-10 21:41:46,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 673 states have (on average 1.401188707280832) internal successors, (943), 685 states have internal predecessors, (943), 0 states have call successors, (0), 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 21:41:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 943 transitions. [2022-01-10 21:41:46,619 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 943 transitions. Word has length 28 [2022-01-10 21:41:46,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:46,620 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 943 transitions. [2022-01-10 21:41:46,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 21:41:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 943 transitions. [2022-01-10 21:41:46,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 21:41:46,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:46,620 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] [2022-01-10 21:41:46,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 21:41:46,621 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:46,621 INFO L85 PathProgramCache]: Analyzing trace with hash 969274777, now seen corresponding path program 1 times [2022-01-10 21:41:46,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:46,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446987401] [2022-01-10 21:41:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:46,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:46,651 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 21:41:46,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:46,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446987401] [2022-01-10 21:41:46,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446987401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:46,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:46,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:46,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337588174] [2022-01-10 21:41:46,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:46,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:46,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:46,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:46,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:46,653 INFO L87 Difference]: Start difference. First operand 686 states and 943 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 21:41:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:46,688 INFO L93 Difference]: Finished difference Result 699 states and 957 transitions. [2022-01-10 21:41:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:46,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-01-10 21:41:46,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:46,690 INFO L225 Difference]: With dead ends: 699 [2022-01-10 21:41:46,690 INFO L226 Difference]: Without dead ends: 684 [2022-01-10 21:41:46,691 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 21:41:46,691 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 16 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1854 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 21:41:46,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 1854 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:46,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-01-10 21:41:46,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2022-01-10 21:41:46,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 671 states have (on average 1.4008941877794336) internal successors, (940), 683 states have internal predecessors, (940), 0 states have call successors, (0), 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 21:41:46,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 940 transitions. [2022-01-10 21:41:46,713 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 940 transitions. Word has length 28 [2022-01-10 21:41:46,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:46,713 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 940 transitions. [2022-01-10 21:41:46,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 21:41:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 940 transitions. [2022-01-10 21:41:46,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 21:41:46,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:46,714 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 21:41:46,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 21:41:46,714 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:46,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:46,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1648243224, now seen corresponding path program 1 times [2022-01-10 21:41:46,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:46,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142272624] [2022-01-10 21:41:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:46,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:46,740 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 21:41:46,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:46,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142272624] [2022-01-10 21:41:46,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142272624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:46,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:46,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:46,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481539275] [2022-01-10 21:41:46,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:46,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:46,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:46,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:46,742 INFO L87 Difference]: Start difference. First operand 684 states and 940 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 21:41:46,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:46,773 INFO L93 Difference]: Finished difference Result 726 states and 990 transitions. [2022-01-10 21:41:46,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:46,774 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 21:41:46,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:46,775 INFO L225 Difference]: With dead ends: 726 [2022-01-10 21:41:46,775 INFO L226 Difference]: Without dead ends: 661 [2022-01-10 21:41:46,776 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 21:41:46,776 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 70 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:46,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 1246 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:46,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-01-10 21:41:46,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 657. [2022-01-10 21:41:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 644 states have (on average 1.3990683229813665) internal successors, (901), 656 states have internal predecessors, (901), 0 states have call successors, (0), 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 21:41:46,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 901 transitions. [2022-01-10 21:41:46,798 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 901 transitions. Word has length 29 [2022-01-10 21:41:46,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:46,798 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 901 transitions. [2022-01-10 21:41:46,798 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 21:41:46,798 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 901 transitions. [2022-01-10 21:41:46,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 21:41:46,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:46,799 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 21:41:46,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 21:41:46,799 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:46,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1613577908, now seen corresponding path program 1 times [2022-01-10 21:41:46,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:46,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107407756] [2022-01-10 21:41:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:46,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:46,830 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 21:41:46,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:46,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107407756] [2022-01-10 21:41:46,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107407756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:46,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:46,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:46,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236360752] [2022-01-10 21:41:46,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:46,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:46,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:46,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:46,831 INFO L87 Difference]: Start difference. First operand 657 states and 901 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 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 21:41:46,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:46,899 INFO L93 Difference]: Finished difference Result 696 states and 943 transitions. [2022-01-10 21:41:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:46,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 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 21:41:46,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:46,902 INFO L225 Difference]: With dead ends: 696 [2022-01-10 21:41:46,902 INFO L226 Difference]: Without dead ends: 675 [2022-01-10 21:41:46,902 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 21:41:46,903 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 37 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:46,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 1824 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-01-10 21:41:46,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 659. [2022-01-10 21:41:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 646 states have (on average 1.3978328173374612) internal successors, (903), 658 states have internal predecessors, (903), 0 states have call successors, (0), 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 21:41:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 903 transitions. [2022-01-10 21:41:46,951 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 903 transitions. Word has length 29 [2022-01-10 21:41:46,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:46,951 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 903 transitions. [2022-01-10 21:41:46,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 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 21:41:46,952 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 903 transitions. [2022-01-10 21:41:46,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 21:41:46,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:46,952 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 21:41:46,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 21:41:46,953 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:46,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:46,953 INFO L85 PathProgramCache]: Analyzing trace with hash -515082759, now seen corresponding path program 1 times [2022-01-10 21:41:46,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:46,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809747128] [2022-01-10 21:41:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:46,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:47,005 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 21:41:47,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:47,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809747128] [2022-01-10 21:41:47,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809747128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:47,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:47,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:47,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622490561] [2022-01-10 21:41:47,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:47,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:47,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:47,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:47,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:47,006 INFO L87 Difference]: Start difference. First operand 659 states and 903 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 21:41:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:47,060 INFO L93 Difference]: Finished difference Result 698 states and 945 transitions. [2022-01-10 21:41:47,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:47,060 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 21:41:47,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:47,062 INFO L225 Difference]: With dead ends: 698 [2022-01-10 21:41:47,062 INFO L226 Difference]: Without dead ends: 677 [2022-01-10 21:41:47,063 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 21:41:47,063 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 37 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:47,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 1824 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-01-10 21:41:47,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 659. [2022-01-10 21:41:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 646 states have (on average 1.3978328173374612) internal successors, (903), 658 states have internal predecessors, (903), 0 states have call successors, (0), 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 21:41:47,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 903 transitions. [2022-01-10 21:41:47,091 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 903 transitions. Word has length 30 [2022-01-10 21:41:47,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:47,091 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 903 transitions. [2022-01-10 21:41:47,091 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 21:41:47,092 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 903 transitions. [2022-01-10 21:41:47,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 21:41:47,092 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:47,093 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 21:41:47,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 21:41:47,093 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:47,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:47,093 INFO L85 PathProgramCache]: Analyzing trace with hash -808485766, now seen corresponding path program 1 times [2022-01-10 21:41:47,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:47,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632715320] [2022-01-10 21:41:47,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:47,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:47,195 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 21:41:47,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:47,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632715320] [2022-01-10 21:41:47,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632715320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:47,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:47,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:47,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647319318] [2022-01-10 21:41:47,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:47,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:47,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:47,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:47,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:47,197 INFO L87 Difference]: Start difference. First operand 659 states and 903 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 21:41:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:47,290 INFO L93 Difference]: Finished difference Result 698 states and 945 transitions. [2022-01-10 21:41:47,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:47,291 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 21:41:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:47,293 INFO L225 Difference]: With dead ends: 698 [2022-01-10 21:41:47,293 INFO L226 Difference]: Without dead ends: 677 [2022-01-10 21:41:47,294 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 21:41:47,295 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 38 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:47,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 1802 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-01-10 21:41:47,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 659. [2022-01-10 21:41:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 646 states have (on average 1.3978328173374612) internal successors, (903), 658 states have internal predecessors, (903), 0 states have call successors, (0), 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 21:41:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 903 transitions. [2022-01-10 21:41:47,325 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 903 transitions. Word has length 30 [2022-01-10 21:41:47,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:47,326 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 903 transitions. [2022-01-10 21:41:47,326 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 21:41:47,326 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 903 transitions. [2022-01-10 21:41:47,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 21:41:47,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:47,327 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 21:41:47,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 21:41:47,327 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:47,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:47,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1069540992, now seen corresponding path program 1 times [2022-01-10 21:41:47,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:47,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900242633] [2022-01-10 21:41:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:47,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:47,386 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 21:41:47,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:47,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900242633] [2022-01-10 21:41:47,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900242633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:47,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:47,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:47,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707178473] [2022-01-10 21:41:47,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:47,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:47,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:47,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:47,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:47,387 INFO L87 Difference]: Start difference. First operand 659 states and 903 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 21:41:47,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:47,598 INFO L93 Difference]: Finished difference Result 942 states and 1258 transitions. [2022-01-10 21:41:47,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:47,599 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 21:41:47,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:47,600 INFO L225 Difference]: With dead ends: 942 [2022-01-10 21:41:47,601 INFO L226 Difference]: Without dead ends: 693 [2022-01-10 21:41:47,601 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 21:41:47,601 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 984 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:47,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 916 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-01-10 21:41:47,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 642. [2022-01-10 21:41:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 630 states have (on average 1.3761904761904762) internal successors, (867), 641 states have internal predecessors, (867), 0 states have call successors, (0), 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 21:41:47,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 867 transitions. [2022-01-10 21:41:47,628 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 867 transitions. Word has length 31 [2022-01-10 21:41:47,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:47,629 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 867 transitions. [2022-01-10 21:41:47,629 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 21:41:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 867 transitions. [2022-01-10 21:41:47,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 21:41:47,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:47,629 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 21:41:47,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 21:41:47,630 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:47,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:47,630 INFO L85 PathProgramCache]: Analyzing trace with hash 936407150, now seen corresponding path program 1 times [2022-01-10 21:41:47,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:47,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976054793] [2022-01-10 21:41:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:47,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:47,682 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 21:41:47,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:47,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976054793] [2022-01-10 21:41:47,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976054793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:47,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:47,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:47,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017103785] [2022-01-10 21:41:47,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:47,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:47,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:47,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:47,684 INFO L87 Difference]: Start difference. First operand 642 states and 867 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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 21:41:47,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:47,831 INFO L93 Difference]: Finished difference Result 647 states and 871 transitions. [2022-01-10 21:41:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:47,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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 21:41:47,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:47,833 INFO L225 Difference]: With dead ends: 647 [2022-01-10 21:41:47,833 INFO L226 Difference]: Without dead ends: 642 [2022-01-10 21:41:47,833 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 21:41:47,834 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 630 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:47,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 1040 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-01-10 21:41:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2022-01-10 21:41:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 630 states have (on average 1.3746031746031746) internal successors, (866), 641 states have internal predecessors, (866), 0 states have call successors, (0), 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 21:41:47,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 866 transitions. [2022-01-10 21:41:47,866 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 866 transitions. Word has length 32 [2022-01-10 21:41:47,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:47,866 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 866 transitions. [2022-01-10 21:41:47,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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 21:41:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 866 transitions. [2022-01-10 21:41:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 21:41:47,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:47,867 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 21:41:47,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 21:41:47,867 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:47,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1066933234, now seen corresponding path program 1 times [2022-01-10 21:41:47,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:47,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679509697] [2022-01-10 21:41:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:47,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:47,897 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 21:41:47,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:47,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679509697] [2022-01-10 21:41:47,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679509697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:47,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:47,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:47,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138781152] [2022-01-10 21:41:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:47,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:47,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:47,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:47,899 INFO L87 Difference]: Start difference. First operand 642 states and 866 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 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 21:41:48,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:48,047 INFO L93 Difference]: Finished difference Result 647 states and 870 transitions. [2022-01-10 21:41:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:48,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 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 21:41:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:48,049 INFO L225 Difference]: With dead ends: 647 [2022-01-10 21:41:48,049 INFO L226 Difference]: Without dead ends: 642 [2022-01-10 21:41:48,050 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 21:41:48,050 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 627 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:48,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 1041 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-01-10 21:41:48,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2022-01-10 21:41:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 630 states have (on average 1.373015873015873) internal successors, (865), 641 states have internal predecessors, (865), 0 states have call successors, (0), 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 21:41:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 865 transitions. [2022-01-10 21:41:48,089 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 865 transitions. Word has length 33 [2022-01-10 21:41:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:48,089 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 865 transitions. [2022-01-10 21:41:48,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 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 21:41:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 865 transitions. [2022-01-10 21:41:48,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 21:41:48,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:48,090 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 21:41:48,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 21:41:48,091 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1329434303, now seen corresponding path program 1 times [2022-01-10 21:41:48,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:48,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993223692] [2022-01-10 21:41:48,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:48,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:48,122 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 21:41:48,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:48,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993223692] [2022-01-10 21:41:48,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993223692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:48,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:48,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:48,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396701652] [2022-01-10 21:41:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:48,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:48,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:48,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:48,124 INFO L87 Difference]: Start difference. First operand 642 states and 865 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 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 21:41:48,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:48,282 INFO L93 Difference]: Finished difference Result 821 states and 1090 transitions. [2022-01-10 21:41:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:48,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 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 21:41:48,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:48,284 INFO L225 Difference]: With dead ends: 821 [2022-01-10 21:41:48,284 INFO L226 Difference]: Without dead ends: 798 [2022-01-10 21:41:48,285 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 21:41:48,286 INFO L933 BasicCegarLoop]: 609 mSDtfsCounter, 175 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:48,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1080 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-01-10 21:41:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 680. [2022-01-10 21:41:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 668 states have (on average 1.3592814371257484) internal successors, (908), 679 states have internal predecessors, (908), 0 states have call successors, (0), 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 21:41:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 908 transitions. [2022-01-10 21:41:48,328 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 908 transitions. Word has length 33 [2022-01-10 21:41:48,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:48,328 INFO L470 AbstractCegarLoop]: Abstraction has 680 states and 908 transitions. [2022-01-10 21:41:48,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 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 21:41:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 908 transitions. [2022-01-10 21:41:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:48,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:48,329 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] [2022-01-10 21:41:48,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 21:41:48,330 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:48,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1262335991, now seen corresponding path program 1 times [2022-01-10 21:41:48,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:48,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702509700] [2022-01-10 21:41:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:48,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:48,375 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 21:41:48,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:48,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702509700] [2022-01-10 21:41:48,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702509700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:48,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:48,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:48,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058832870] [2022-01-10 21:41:48,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:48,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:48,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:48,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:48,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:48,377 INFO L87 Difference]: Start difference. First operand 680 states and 908 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 21:41:48,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:48,449 INFO L93 Difference]: Finished difference Result 693 states and 920 transitions. [2022-01-10 21:41:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 21:41:48,449 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 21:41:48,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:48,451 INFO L225 Difference]: With dead ends: 693 [2022-01-10 21:41:48,451 INFO L226 Difference]: Without dead ends: 672 [2022-01-10 21:41:48,453 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 21:41:48,454 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 33 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:48,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 3012 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:48,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-01-10 21:41:48,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2022-01-10 21:41:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 660 states have (on average 1.3590909090909091) internal successors, (897), 671 states have internal predecessors, (897), 0 states have call successors, (0), 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 21:41:48,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 897 transitions. [2022-01-10 21:41:48,492 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 897 transitions. Word has length 34 [2022-01-10 21:41:48,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:48,492 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 897 transitions. [2022-01-10 21:41:48,492 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 21:41:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 897 transitions. [2022-01-10 21:41:48,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:48,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:48,493 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 21:41:48,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 21:41:48,493 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:48,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:48,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1736190510, now seen corresponding path program 1 times [2022-01-10 21:41:48,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:48,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148563742] [2022-01-10 21:41:48,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:48,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:48,537 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 21:41:48,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:48,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148563742] [2022-01-10 21:41:48,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148563742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:48,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:48,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:48,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254856826] [2022-01-10 21:41:48,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:48,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:48,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:48,539 INFO L87 Difference]: Start difference. First operand 672 states and 897 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 21:41:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:48,707 INFO L93 Difference]: Finished difference Result 798 states and 1061 transitions. [2022-01-10 21:41:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:48,707 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 21:41:48,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:48,709 INFO L225 Difference]: With dead ends: 798 [2022-01-10 21:41:48,709 INFO L226 Difference]: Without dead ends: 790 [2022-01-10 21:41:48,710 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 21:41:48,710 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 898 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:48,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 1041 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-01-10 21:41:48,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 672. [2022-01-10 21:41:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 660 states have (on average 1.3575757575757577) internal successors, (896), 671 states have internal predecessors, (896), 0 states have call successors, (0), 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 21:41:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 896 transitions. [2022-01-10 21:41:48,749 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 896 transitions. Word has length 34 [2022-01-10 21:41:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:48,749 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 896 transitions. [2022-01-10 21:41:48,749 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 21:41:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 896 transitions. [2022-01-10 21:41:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:48,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:48,750 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 21:41:48,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 21:41:48,750 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:48,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:48,750 INFO L85 PathProgramCache]: Analyzing trace with hash -269981295, now seen corresponding path program 1 times [2022-01-10 21:41:48,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:48,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812330257] [2022-01-10 21:41:48,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:48,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:48,803 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 21:41:48,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:48,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812330257] [2022-01-10 21:41:48,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812330257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:48,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:48,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:48,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026806760] [2022-01-10 21:41:48,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:48,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:48,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:48,805 INFO L87 Difference]: Start difference. First operand 672 states and 896 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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 21:41:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:48,879 INFO L93 Difference]: Finished difference Result 690 states and 913 transitions. [2022-01-10 21:41:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:48,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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 21:41:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:48,881 INFO L225 Difference]: With dead ends: 690 [2022-01-10 21:41:48,881 INFO L226 Difference]: Without dead ends: 672 [2022-01-10 21:41:48,881 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 21:41:48,882 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 21 mSDsluCounter, 1751 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:48,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 2343 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:48,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-01-10 21:41:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2022-01-10 21:41:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 660 states have (on average 1.3424242424242425) internal successors, (886), 671 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 21:41:48,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 886 transitions. [2022-01-10 21:41:48,923 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 886 transitions. Word has length 34 [2022-01-10 21:41:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:48,923 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 886 transitions. [2022-01-10 21:41:48,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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 21:41:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 886 transitions. [2022-01-10 21:41:48,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:48,924 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:48,924 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 21:41:48,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 21:41:48,924 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:48,924 INFO L85 PathProgramCache]: Analyzing trace with hash 953353763, now seen corresponding path program 1 times [2022-01-10 21:41:48,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:48,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269177733] [2022-01-10 21:41:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:48,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:48,953 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 21:41:48,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:48,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269177733] [2022-01-10 21:41:48,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269177733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:48,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:48,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:48,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908555955] [2022-01-10 21:41:48,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:48,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:48,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:48,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:48,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:48,954 INFO L87 Difference]: Start difference. First operand 672 states and 886 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 21:41:49,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:49,088 INFO L93 Difference]: Finished difference Result 882 states and 1164 transitions. [2022-01-10 21:41:49,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:49,088 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 21:41:49,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:49,090 INFO L225 Difference]: With dead ends: 882 [2022-01-10 21:41:49,090 INFO L226 Difference]: Without dead ends: 674 [2022-01-10 21:41:49,091 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 21:41:49,091 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 27 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:49,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1045 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-01-10 21:41:49,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2022-01-10 21:41:49,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 664 states have (on average 1.338855421686747) internal successors, (889), 673 states have internal predecessors, (889), 0 states have call successors, (0), 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 21:41:49,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 889 transitions. [2022-01-10 21:41:49,125 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 889 transitions. Word has length 34 [2022-01-10 21:41:49,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:49,125 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 889 transitions. [2022-01-10 21:41:49,125 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 21:41:49,126 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 889 transitions. [2022-01-10 21:41:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 21:41:49,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:49,126 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 21:41:49,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 21:41:49,127 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:49,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1011453187, now seen corresponding path program 1 times [2022-01-10 21:41:49,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:49,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246630872] [2022-01-10 21:41:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:49,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:49,154 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 21:41:49,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:49,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246630872] [2022-01-10 21:41:49,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246630872] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:49,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:49,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:49,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851468108] [2022-01-10 21:41:49,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:49,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:49,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:49,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:49,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:49,155 INFO L87 Difference]: Start difference. First operand 674 states and 889 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 21:41:49,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:49,204 INFO L93 Difference]: Finished difference Result 855 states and 1120 transitions. [2022-01-10 21:41:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:49,204 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 21:41:49,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:49,206 INFO L225 Difference]: With dead ends: 855 [2022-01-10 21:41:49,206 INFO L226 Difference]: Without dead ends: 650 [2022-01-10 21:41:49,207 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 21:41:49,207 INFO L933 BasicCegarLoop]: 589 mSDtfsCounter, 201 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:49,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 965 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:49,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-01-10 21:41:49,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 634. [2022-01-10 21:41:49,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 624 states have (on average 1.3317307692307692) internal successors, (831), 633 states have internal predecessors, (831), 0 states have call successors, (0), 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 21:41:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 831 transitions. [2022-01-10 21:41:49,241 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 831 transitions. Word has length 34 [2022-01-10 21:41:49,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:49,241 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 831 transitions. [2022-01-10 21:41:49,241 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 21:41:49,241 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 831 transitions. [2022-01-10 21:41:49,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:49,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:49,242 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 21:41:49,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 21:41:49,242 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:49,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:49,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1981885226, now seen corresponding path program 1 times [2022-01-10 21:41:49,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:49,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238179687] [2022-01-10 21:41:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:49,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:49,288 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 21:41:49,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:49,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238179687] [2022-01-10 21:41:49,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238179687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:49,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:49,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:49,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425187660] [2022-01-10 21:41:49,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:49,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:49,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:49,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:49,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:49,290 INFO L87 Difference]: Start difference. First operand 634 states and 831 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 21:41:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:49,463 INFO L93 Difference]: Finished difference Result 752 states and 987 transitions. [2022-01-10 21:41:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:49,463 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 21:41:49,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:49,465 INFO L225 Difference]: With dead ends: 752 [2022-01-10 21:41:49,465 INFO L226 Difference]: Without dead ends: 749 [2022-01-10 21:41:49,465 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 21:41:49,466 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 870 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:49,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 1009 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:49,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-01-10 21:41:49,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 636. [2022-01-10 21:41:49,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 626 states have (on average 1.3306709265175718) internal successors, (833), 635 states have internal predecessors, (833), 0 states have call successors, (0), 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 21:41:49,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 833 transitions. [2022-01-10 21:41:49,504 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 833 transitions. Word has length 35 [2022-01-10 21:41:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:49,505 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 833 transitions. [2022-01-10 21:41:49,505 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 21:41:49,505 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 833 transitions. [2022-01-10 21:41:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:49,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:49,506 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 21:41:49,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 21:41:49,506 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:49,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:49,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1981886251, now seen corresponding path program 1 times [2022-01-10 21:41:49,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:49,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407307358] [2022-01-10 21:41:49,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:49,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:49,545 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 21:41:49,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:49,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407307358] [2022-01-10 21:41:49,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407307358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:49,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:49,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:49,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443026052] [2022-01-10 21:41:49,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:49,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:49,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:49,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:49,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:49,547 INFO L87 Difference]: Start difference. First operand 636 states and 833 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 21:41:49,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:49,700 INFO L93 Difference]: Finished difference Result 641 states and 837 transitions. [2022-01-10 21:41:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:49,700 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 21:41:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:49,702 INFO L225 Difference]: With dead ends: 641 [2022-01-10 21:41:49,702 INFO L226 Difference]: Without dead ends: 598 [2022-01-10 21:41:49,703 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 21:41:49,703 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 636 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:49,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 853 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:49,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-01-10 21:41:49,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2022-01-10 21:41:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 588 states have (on average 1.3299319727891157) internal successors, (782), 597 states have internal predecessors, (782), 0 states have call successors, (0), 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 21:41:49,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 782 transitions. [2022-01-10 21:41:49,736 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 782 transitions. Word has length 35 [2022-01-10 21:41:49,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:49,736 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 782 transitions. [2022-01-10 21:41:49,736 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 21:41:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 782 transitions. [2022-01-10 21:41:49,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:49,737 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:49,737 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 21:41:49,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 21:41:49,737 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:49,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:49,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1837736447, now seen corresponding path program 1 times [2022-01-10 21:41:49,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:49,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264779964] [2022-01-10 21:41:49,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:49,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:49,760 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 21:41:49,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:49,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264779964] [2022-01-10 21:41:49,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264779964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:49,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:49,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:49,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805518540] [2022-01-10 21:41:49,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:49,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:49,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:49,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:49,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:49,762 INFO L87 Difference]: Start difference. First operand 598 states and 782 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 21:41:49,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:49,956 INFO L93 Difference]: Finished difference Result 1169 states and 1516 transitions. [2022-01-10 21:41:49,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:49,956 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 21:41:49,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:49,958 INFO L225 Difference]: With dead ends: 1169 [2022-01-10 21:41:49,958 INFO L226 Difference]: Without dead ends: 895 [2022-01-10 21:41:49,959 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 21:41:49,959 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 230 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:49,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1030 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:49,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-01-10 21:41:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 635. [2022-01-10 21:41:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 625 states have (on average 1.3312) internal successors, (832), 634 states have internal predecessors, (832), 0 states have call successors, (0), 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 21:41:50,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 832 transitions. [2022-01-10 21:41:50,007 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 832 transitions. Word has length 35 [2022-01-10 21:41:50,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:50,008 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 832 transitions. [2022-01-10 21:41:50,008 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 21:41:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 832 transitions. [2022-01-10 21:41:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:50,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:50,009 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 21:41:50,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 21:41:50,009 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:50,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1708653728, now seen corresponding path program 1 times [2022-01-10 21:41:50,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:50,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700357926] [2022-01-10 21:41:50,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:50,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:50,041 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 21:41:50,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:50,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700357926] [2022-01-10 21:41:50,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700357926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:50,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:50,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:50,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217973134] [2022-01-10 21:41:50,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:50,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:50,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:50,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:50,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:50,043 INFO L87 Difference]: Start difference. First operand 635 states and 832 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 21:41:50,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:50,173 INFO L93 Difference]: Finished difference Result 703 states and 907 transitions. [2022-01-10 21:41:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:50,173 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 21:41:50,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:50,175 INFO L225 Difference]: With dead ends: 703 [2022-01-10 21:41:50,175 INFO L226 Difference]: Without dead ends: 618 [2022-01-10 21:41:50,175 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 21:41:50,176 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 612 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:50,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 868 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-01-10 21:41:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 600. [2022-01-10 21:41:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 590 states have (on average 1.3084745762711865) internal successors, (772), 599 states have internal predecessors, (772), 0 states have call successors, (0), 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 21:41:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 772 transitions. [2022-01-10 21:41:50,213 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 772 transitions. Word has length 35 [2022-01-10 21:41:50,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:50,213 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 772 transitions. [2022-01-10 21:41:50,213 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 21:41:50,213 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 772 transitions. [2022-01-10 21:41:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:50,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:50,214 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 21:41:50,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 21:41:50,214 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:50,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:50,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1872974016, now seen corresponding path program 1 times [2022-01-10 21:41:50,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:50,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459537015] [2022-01-10 21:41:50,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:50,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:50,240 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 21:41:50,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:50,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459537015] [2022-01-10 21:41:50,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459537015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:50,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:50,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:50,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446280567] [2022-01-10 21:41:50,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:50,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:50,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:50,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:50,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:50,241 INFO L87 Difference]: Start difference. First operand 600 states and 772 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 21:41:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:50,376 INFO L93 Difference]: Finished difference Result 675 states and 864 transitions. [2022-01-10 21:41:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:50,377 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 21:41:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:50,378 INFO L225 Difference]: With dead ends: 675 [2022-01-10 21:41:50,378 INFO L226 Difference]: Without dead ends: 620 [2022-01-10 21:41:50,379 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 21:41:50,379 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 108 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:50,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 1024 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:50,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-01-10 21:41:50,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 565. [2022-01-10 21:41:50,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 555 states have (on average 1.3135135135135134) internal successors, (729), 564 states have internal predecessors, (729), 0 states have call successors, (0), 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 21:41:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 729 transitions. [2022-01-10 21:41:50,416 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 729 transitions. Word has length 35 [2022-01-10 21:41:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:50,416 INFO L470 AbstractCegarLoop]: Abstraction has 565 states and 729 transitions. [2022-01-10 21:41:50,416 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 21:41:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 729 transitions. [2022-01-10 21:41:50,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:50,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:50,416 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 21:41:50,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 21:41:50,417 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:50,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:50,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1703807636, now seen corresponding path program 1 times [2022-01-10 21:41:50,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:50,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286611121] [2022-01-10 21:41:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:50,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:50,454 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 21:41:50,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:50,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286611121] [2022-01-10 21:41:50,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286611121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:50,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:50,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:50,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845163350] [2022-01-10 21:41:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:50,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:50,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:50,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:50,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:50,456 INFO L87 Difference]: Start difference. First operand 565 states and 729 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 21:41:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:50,524 INFO L93 Difference]: Finished difference Result 583 states and 746 transitions. [2022-01-10 21:41:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:50,524 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 21:41:50,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:50,526 INFO L225 Difference]: With dead ends: 583 [2022-01-10 21:41:50,526 INFO L226 Difference]: Without dead ends: 565 [2022-01-10 21:41:50,526 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 21:41:50,526 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 21 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:50,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 2109 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-01-10 21:41:50,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2022-01-10 21:41:50,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 555 states have (on average 1.308108108108108) internal successors, (726), 564 states have internal predecessors, (726), 0 states have call successors, (0), 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 21:41:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 726 transitions. [2022-01-10 21:41:50,582 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 726 transitions. Word has length 35 [2022-01-10 21:41:50,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:50,583 INFO L470 AbstractCegarLoop]: Abstraction has 565 states and 726 transitions. [2022-01-10 21:41:50,583 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 21:41:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 726 transitions. [2022-01-10 21:41:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:50,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:50,584 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 21:41:50,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 21:41:50,584 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:50,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:50,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1594087307, now seen corresponding path program 1 times [2022-01-10 21:41:50,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:50,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831091385] [2022-01-10 21:41:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:50,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:50,621 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 21:41:50,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:50,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831091385] [2022-01-10 21:41:50,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831091385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:50,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:50,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:50,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824421012] [2022-01-10 21:41:50,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:50,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:50,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:50,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:50,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:50,623 INFO L87 Difference]: Start difference. First operand 565 states and 726 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 21:41:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:50,687 INFO L93 Difference]: Finished difference Result 581 states and 741 transitions. [2022-01-10 21:41:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:50,688 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 21:41:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:50,701 INFO L225 Difference]: With dead ends: 581 [2022-01-10 21:41:50,702 INFO L226 Difference]: Without dead ends: 555 [2022-01-10 21:41:50,702 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 21:41:50,702 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 536 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:50,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [536 Valid, 1587 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:50,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-01-10 21:41:50,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2022-01-10 21:41:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 545 states have (on average 1.306422018348624) internal successors, (712), 554 states have internal predecessors, (712), 0 states have call successors, (0), 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 21:41:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 712 transitions. [2022-01-10 21:41:50,736 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 712 transitions. Word has length 35 [2022-01-10 21:41:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:50,737 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 712 transitions. [2022-01-10 21:41:50,737 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 21:41:50,737 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 712 transitions. [2022-01-10 21:41:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 21:41:50,737 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:50,737 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 21:41:50,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 21:41:50,738 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:50,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1491787111, now seen corresponding path program 1 times [2022-01-10 21:41:50,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443124698] [2022-01-10 21:41:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:50,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:50,775 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 21:41:50,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:50,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443124698] [2022-01-10 21:41:50,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443124698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:50,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:50,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:50,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765768071] [2022-01-10 21:41:50,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:50,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:50,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:50,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:50,777 INFO L87 Difference]: Start difference. First operand 555 states and 712 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 21:41:50,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:50,843 INFO L93 Difference]: Finished difference Result 615 states and 773 transitions. [2022-01-10 21:41:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:50,844 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 21:41:50,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:50,846 INFO L225 Difference]: With dead ends: 615 [2022-01-10 21:41:50,846 INFO L226 Difference]: Without dead ends: 592 [2022-01-10 21:41:50,847 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 21:41:50,847 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 71 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:50,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 2081 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:50,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-01-10 21:41:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 558. [2022-01-10 21:41:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 548 states have (on average 1.3047445255474452) internal successors, (715), 557 states have internal predecessors, (715), 0 states have call successors, (0), 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 21:41:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 715 transitions. [2022-01-10 21:41:50,884 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 715 transitions. Word has length 35 [2022-01-10 21:41:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:50,884 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 715 transitions. [2022-01-10 21:41:50,884 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 21:41:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 715 transitions. [2022-01-10 21:41:50,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 21:41:50,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:50,885 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 21:41:50,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 21:41:50,885 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:50,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:50,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2068366705, now seen corresponding path program 1 times [2022-01-10 21:41:50,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:50,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030669473] [2022-01-10 21:41:50,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:50,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:50,919 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 21:41:50,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:50,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030669473] [2022-01-10 21:41:50,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030669473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:50,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:50,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:50,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495530222] [2022-01-10 21:41:50,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:50,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:50,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:50,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:50,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:50,920 INFO L87 Difference]: Start difference. First operand 558 states and 715 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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 21:41:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:51,047 INFO L93 Difference]: Finished difference Result 613 states and 787 transitions. [2022-01-10 21:41:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:51,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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 21:41:51,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:51,049 INFO L225 Difference]: With dead ends: 613 [2022-01-10 21:41:51,049 INFO L226 Difference]: Without dead ends: 610 [2022-01-10 21:41:51,050 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 21:41:51,050 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 607 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:51,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [607 Valid, 959 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:51,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-01-10 21:41:51,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 556. [2022-01-10 21:41:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 546 states have (on average 1.304029304029304) internal successors, (712), 555 states have internal predecessors, (712), 0 states have call successors, (0), 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 21:41:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 712 transitions. [2022-01-10 21:41:51,093 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 712 transitions. Word has length 36 [2022-01-10 21:41:51,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:51,093 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 712 transitions. [2022-01-10 21:41:51,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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 21:41:51,093 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 712 transitions. [2022-01-10 21:41:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 21:41:51,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:51,094 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 21:41:51,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 21:41:51,094 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:51,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:51,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2068367730, now seen corresponding path program 1 times [2022-01-10 21:41:51,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:51,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756866091] [2022-01-10 21:41:51,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:51,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:51,154 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 21:41:51,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:51,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756866091] [2022-01-10 21:41:51,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756866091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:51,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:51,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:51,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958670466] [2022-01-10 21:41:51,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:51,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:51,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:51,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:51,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:51,155 INFO L87 Difference]: Start difference. First operand 556 states and 712 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 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 21:41:51,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:51,426 INFO L93 Difference]: Finished difference Result 820 states and 1036 transitions. [2022-01-10 21:41:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:51,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 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 21:41:51,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:51,429 INFO L225 Difference]: With dead ends: 820 [2022-01-10 21:41:51,429 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 21:41:51,429 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 21:41:51,430 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 374 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:51,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2826 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 21:41:51,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 554. [2022-01-10 21:41:51,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 544 states have (on average 1.3014705882352942) internal successors, (708), 553 states have internal predecessors, (708), 0 states have call successors, (0), 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 21:41:51,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 708 transitions. [2022-01-10 21:41:51,470 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 708 transitions. Word has length 36 [2022-01-10 21:41:51,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:51,470 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 708 transitions. [2022-01-10 21:41:51,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 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 21:41:51,470 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 708 transitions. [2022-01-10 21:41:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 21:41:51,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:51,471 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 21:41:51,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 21:41:51,471 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:51,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1496610181, now seen corresponding path program 1 times [2022-01-10 21:41:51,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:51,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762550017] [2022-01-10 21:41:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:51,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:51,523 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 21:41:51,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:51,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762550017] [2022-01-10 21:41:51,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762550017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:51,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:51,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:51,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010018779] [2022-01-10 21:41:51,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:51,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:51,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:51,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:51,524 INFO L87 Difference]: Start difference. First operand 554 states and 708 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 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 21:41:51,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:51,744 INFO L93 Difference]: Finished difference Result 585 states and 737 transitions. [2022-01-10 21:41:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:51,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 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 21:41:51,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:51,746 INFO L225 Difference]: With dead ends: 585 [2022-01-10 21:41:51,747 INFO L226 Difference]: Without dead ends: 544 [2022-01-10 21:41:51,747 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 21:41:51,747 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 350 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:51,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2105 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-01-10 21:41:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 523. [2022-01-10 21:41:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 513 states have (on average 1.307992202729045) internal successors, (671), 522 states have internal predecessors, (671), 0 states have call successors, (0), 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 21:41:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 671 transitions. [2022-01-10 21:41:51,801 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 671 transitions. Word has length 37 [2022-01-10 21:41:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:51,801 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 671 transitions. [2022-01-10 21:41:51,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 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 21:41:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 671 transitions. [2022-01-10 21:41:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 21:41:51,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:51,804 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 21:41:51,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 21:41:51,804 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:51,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1765651113, now seen corresponding path program 1 times [2022-01-10 21:41:51,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:51,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229665893] [2022-01-10 21:41:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:51,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:51,850 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 21:41:51,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:51,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229665893] [2022-01-10 21:41:51,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229665893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:51,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:51,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:51,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121459345] [2022-01-10 21:41:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:51,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:51,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:51,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:51,852 INFO L87 Difference]: Start difference. First operand 523 states and 671 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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 21:41:51,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:51,911 INFO L93 Difference]: Finished difference Result 786 states and 1009 transitions. [2022-01-10 21:41:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:51,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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 21:41:51,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:51,913 INFO L225 Difference]: With dead ends: 786 [2022-01-10 21:41:51,913 INFO L226 Difference]: Without dead ends: 585 [2022-01-10 21:41:51,913 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 21:41:51,915 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 174 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:51,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 871 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:51,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-01-10 21:41:51,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 511. [2022-01-10 21:41:51,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 504 states have (on average 1.2956349206349207) internal successors, (653), 510 states have internal predecessors, (653), 0 states have call successors, (0), 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 21:41:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 653 transitions. [2022-01-10 21:41:51,956 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 653 transitions. Word has length 37 [2022-01-10 21:41:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:51,956 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 653 transitions. [2022-01-10 21:41:51,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 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 21:41:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 653 transitions. [2022-01-10 21:41:51,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 21:41:51,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:51,957 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 21:41:51,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 21:41:51,957 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:51,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1493220792, now seen corresponding path program 1 times [2022-01-10 21:41:51,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:51,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519748353] [2022-01-10 21:41:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:51,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:52,020 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 21:41:52,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:52,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519748353] [2022-01-10 21:41:52,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519748353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:52,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:52,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:52,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996648350] [2022-01-10 21:41:52,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:52,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:52,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:52,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:52,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:52,022 INFO L87 Difference]: Start difference. First operand 511 states and 653 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 21:41:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:52,091 INFO L93 Difference]: Finished difference Result 710 states and 906 transitions. [2022-01-10 21:41:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:52,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 21:41:52,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:52,093 INFO L225 Difference]: With dead ends: 710 [2022-01-10 21:41:52,093 INFO L226 Difference]: Without dead ends: 493 [2022-01-10 21:41:52,093 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 21:41:52,094 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 352 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:52,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 1067 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:52,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-01-10 21:41:52,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 477. [2022-01-10 21:41:52,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 471 states have (on average 1.2802547770700636) internal successors, (603), 476 states have internal predecessors, (603), 0 states have call successors, (0), 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 21:41:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 603 transitions. [2022-01-10 21:41:52,138 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 603 transitions. Word has length 39 [2022-01-10 21:41:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:52,138 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 603 transitions. [2022-01-10 21:41:52,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 21:41:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 603 transitions. [2022-01-10 21:41:52,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 21:41:52,139 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:52,139 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 21:41:52,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 21:41:52,139 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:52,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:52,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1002689332, now seen corresponding path program 1 times [2022-01-10 21:41:52,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:52,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177329945] [2022-01-10 21:41:52,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:52,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:52,176 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 21:41:52,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:52,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177329945] [2022-01-10 21:41:52,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177329945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:52,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:52,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:52,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320523740] [2022-01-10 21:41:52,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:52,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:52,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:52,178 INFO L87 Difference]: Start difference. First operand 477 states and 603 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 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 21:41:52,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:52,263 INFO L93 Difference]: Finished difference Result 511 states and 636 transitions. [2022-01-10 21:41:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 21:41:52,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 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 21:41:52,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:52,265 INFO L225 Difference]: With dead ends: 511 [2022-01-10 21:41:52,265 INFO L226 Difference]: Without dead ends: 492 [2022-01-10 21:41:52,265 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 21:41:52,265 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 57 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:52,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 2282 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-01-10 21:41:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-01-10 21:41:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 468 states have (on average 1.2799145299145298) internal successors, (599), 473 states have internal predecessors, (599), 0 states have call successors, (0), 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 21:41:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 599 transitions. [2022-01-10 21:41:52,302 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 599 transitions. Word has length 40 [2022-01-10 21:41:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:52,302 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 599 transitions. [2022-01-10 21:41:52,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 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 21:41:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 599 transitions. [2022-01-10 21:41:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 21:41:52,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:52,302 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 21:41:52,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 21:41:52,303 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:52,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:52,303 INFO L85 PathProgramCache]: Analyzing trace with hash 704122211, now seen corresponding path program 1 times [2022-01-10 21:41:52,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:52,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9793327] [2022-01-10 21:41:52,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:52,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:52,335 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 21:41:52,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:52,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9793327] [2022-01-10 21:41:52,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9793327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:52,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:52,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:52,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748891368] [2022-01-10 21:41:52,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:52,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:52,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:52,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:52,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:52,337 INFO L87 Difference]: Start difference. First operand 474 states and 599 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 21:41:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:52,402 INFO L93 Difference]: Finished difference Result 490 states and 615 transitions. [2022-01-10 21:41:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:52,402 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 21:41:52,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:52,404 INFO L225 Difference]: With dead ends: 490 [2022-01-10 21:41:52,404 INFO L226 Difference]: Without dead ends: 470 [2022-01-10 21:41:52,404 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 21:41:52,404 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 22 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:52,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1824 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:52,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-01-10 21:41:52,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-01-10 21:41:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 464 states have (on average 1.2780172413793103) internal successors, (593), 469 states have internal predecessors, (593), 0 states have call successors, (0), 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 21:41:52,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 593 transitions. [2022-01-10 21:41:52,440 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 593 transitions. Word has length 40 [2022-01-10 21:41:52,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:52,441 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 593 transitions. [2022-01-10 21:41:52,441 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 21:41:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 593 transitions. [2022-01-10 21:41:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 21:41:52,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:52,441 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] [2022-01-10 21:41:52,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 21:41:52,442 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:52,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:52,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1563839091, now seen corresponding path program 1 times [2022-01-10 21:41:52,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:52,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421126502] [2022-01-10 21:41:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:52,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:52,492 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 21:41:52,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:52,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421126502] [2022-01-10 21:41:52,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421126502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:52,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:52,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:52,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544067539] [2022-01-10 21:41:52,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:52,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:52,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:52,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:52,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:52,494 INFO L87 Difference]: Start difference. First operand 470 states and 593 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:52,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:52,733 INFO L93 Difference]: Finished difference Result 706 states and 883 transitions. [2022-01-10 21:41:52,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:52,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-10 21:41:52,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:52,745 INFO L225 Difference]: With dead ends: 706 [2022-01-10 21:41:52,745 INFO L226 Difference]: Without dead ends: 689 [2022-01-10 21:41:52,746 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 21:41:52,746 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 343 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:52,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2502 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 21:41:52,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-01-10 21:41:52,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 469. [2022-01-10 21:41:52,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 463 states have (on average 1.2764578833693305) internal successors, (591), 468 states have internal predecessors, (591), 0 states have call successors, (0), 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 21:41:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 591 transitions. [2022-01-10 21:41:52,783 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 591 transitions. Word has length 41 [2022-01-10 21:41:52,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:52,783 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 591 transitions. [2022-01-10 21:41:52,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:52,783 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 591 transitions. [2022-01-10 21:41:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 21:41:52,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:52,784 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] [2022-01-10 21:41:52,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 21:41:52,784 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:52,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:52,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1022012029, now seen corresponding path program 1 times [2022-01-10 21:41:52,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:52,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752268570] [2022-01-10 21:41:52,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:52,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:52,830 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 21:41:52,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:52,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752268570] [2022-01-10 21:41:52,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752268570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:52,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:52,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:52,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144267836] [2022-01-10 21:41:52,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:52,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:52,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:52,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:52,832 INFO L87 Difference]: Start difference. First operand 469 states and 591 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:52,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:52,960 INFO L93 Difference]: Finished difference Result 652 states and 826 transitions. [2022-01-10 21:41:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:52,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-10 21:41:52,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:52,962 INFO L225 Difference]: With dead ends: 652 [2022-01-10 21:41:52,962 INFO L226 Difference]: Without dead ends: 469 [2022-01-10 21:41:52,962 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 21:41:52,963 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 452 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:52,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 758 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-01-10 21:41:52,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-01-10 21:41:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 463 states have (on average 1.263498920086393) internal successors, (585), 468 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 21:41:53,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 585 transitions. [2022-01-10 21:41:53,000 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 585 transitions. Word has length 41 [2022-01-10 21:41:53,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:53,000 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 585 transitions. [2022-01-10 21:41:53,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 585 transitions. [2022-01-10 21:41:53,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 21:41:53,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:53,001 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] [2022-01-10 21:41:53,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 21:41:53,001 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:53,002 INFO L85 PathProgramCache]: Analyzing trace with hash 770428510, now seen corresponding path program 1 times [2022-01-10 21:41:53,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:53,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912980099] [2022-01-10 21:41:53,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:53,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:53,056 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 21:41:53,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:53,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912980099] [2022-01-10 21:41:53,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912980099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:53,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:53,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:53,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058869998] [2022-01-10 21:41:53,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:53,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:53,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:53,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:53,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:53,058 INFO L87 Difference]: Start difference. First operand 469 states and 585 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 21:41:53,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:53,241 INFO L93 Difference]: Finished difference Result 497 states and 610 transitions. [2022-01-10 21:41:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-10 21:41:53,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:53,242 INFO L225 Difference]: With dead ends: 497 [2022-01-10 21:41:53,242 INFO L226 Difference]: Without dead ends: 473 [2022-01-10 21:41:53,242 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 21:41:53,242 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 326 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:53,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 1850 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:53,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-01-10 21:41:53,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 456. [2022-01-10 21:41:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 450 states have (on average 1.2666666666666666) internal successors, (570), 455 states have internal predecessors, (570), 0 states have call successors, (0), 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 21:41:53,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 570 transitions. [2022-01-10 21:41:53,280 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 570 transitions. Word has length 42 [2022-01-10 21:41:53,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:53,280 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 570 transitions. [2022-01-10 21:41:53,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 21:41:53,280 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 570 transitions. [2022-01-10 21:41:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 21:41:53,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:53,280 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] [2022-01-10 21:41:53,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 21:41:53,281 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:53,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash -415760886, now seen corresponding path program 1 times [2022-01-10 21:41:53,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:53,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577726828] [2022-01-10 21:41:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:53,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:53,311 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 21:41:53,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:53,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577726828] [2022-01-10 21:41:53,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577726828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:53,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:53,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:53,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391175912] [2022-01-10 21:41:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:53,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:53,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:53,312 INFO L87 Difference]: Start difference. First operand 456 states and 570 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:53,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:53,380 INFO L93 Difference]: Finished difference Result 622 states and 758 transitions. [2022-01-10 21:41:53,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:53,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 21:41:53,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:53,382 INFO L225 Difference]: With dead ends: 622 [2022-01-10 21:41:53,382 INFO L226 Difference]: Without dead ends: 548 [2022-01-10 21:41:53,382 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 21:41:53,382 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 98 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:53,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 1418 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-01-10 21:41:53,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 460. [2022-01-10 21:41:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 454 states have (on average 1.2643171806167401) internal successors, (574), 459 states have internal predecessors, (574), 0 states have call successors, (0), 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 21:41:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 574 transitions. [2022-01-10 21:41:53,421 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 574 transitions. Word has length 44 [2022-01-10 21:41:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:53,421 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 574 transitions. [2022-01-10 21:41:53,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 574 transitions. [2022-01-10 21:41:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 21:41:53,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:53,422 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] [2022-01-10 21:41:53,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 21:41:53,422 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2037662186, now seen corresponding path program 1 times [2022-01-10 21:41:53,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:53,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902875534] [2022-01-10 21:41:53,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:53,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:53,465 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 21:41:53,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:53,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902875534] [2022-01-10 21:41:53,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902875534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:53,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:53,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:53,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670211014] [2022-01-10 21:41:53,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:53,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:53,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:53,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:53,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:53,466 INFO L87 Difference]: Start difference. First operand 460 states and 574 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:53,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:53,576 INFO L93 Difference]: Finished difference Result 607 states and 737 transitions. [2022-01-10 21:41:53,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:53,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 21:41:53,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:53,577 INFO L225 Difference]: With dead ends: 607 [2022-01-10 21:41:53,578 INFO L226 Difference]: Without dead ends: 519 [2022-01-10 21:41:53,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:53,578 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 238 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2609 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:53,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2609 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-10 21:41:53,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 463. [2022-01-10 21:41:53,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 457 states have (on average 1.2582056892778994) internal successors, (575), 462 states have internal predecessors, (575), 0 states have call successors, (0), 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 21:41:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 575 transitions. [2022-01-10 21:41:53,647 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 575 transitions. Word has length 44 [2022-01-10 21:41:53,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:53,647 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 575 transitions. [2022-01-10 21:41:53,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 575 transitions. [2022-01-10 21:41:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 21:41:53,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:53,648 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] [2022-01-10 21:41:53,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 21:41:53,648 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:53,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:53,648 INFO L85 PathProgramCache]: Analyzing trace with hash 934339620, now seen corresponding path program 1 times [2022-01-10 21:41:53,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:53,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752132609] [2022-01-10 21:41:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:53,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:53,680 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 21:41:53,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:53,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752132609] [2022-01-10 21:41:53,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752132609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:53,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:53,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:53,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266102509] [2022-01-10 21:41:53,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:53,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:53,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:53,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:53,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:53,682 INFO L87 Difference]: Start difference. First operand 463 states and 575 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:53,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:53,793 INFO L93 Difference]: Finished difference Result 796 states and 989 transitions. [2022-01-10 21:41:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:53,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 21:41:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:53,795 INFO L225 Difference]: With dead ends: 796 [2022-01-10 21:41:53,795 INFO L226 Difference]: Without dead ends: 613 [2022-01-10 21:41:53,795 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 21:41:53,796 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 165 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:53,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 981 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-01-10 21:41:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 463. [2022-01-10 21:41:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 457 states have (on average 1.2582056892778994) internal successors, (575), 462 states have internal predecessors, (575), 0 states have call successors, (0), 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 21:41:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 575 transitions. [2022-01-10 21:41:53,836 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 575 transitions. Word has length 44 [2022-01-10 21:41:53,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:53,836 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 575 transitions. [2022-01-10 21:41:53,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:53,836 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 575 transitions. [2022-01-10 21:41:53,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 21:41:53,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:53,837 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] [2022-01-10 21:41:53,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-10 21:41:53,837 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:53,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1059125244, now seen corresponding path program 1 times [2022-01-10 21:41:53,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:53,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472321574] [2022-01-10 21:41:53,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:53,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:53,916 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 21:41:53,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:53,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472321574] [2022-01-10 21:41:53,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472321574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:53,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:53,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:53,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111120681] [2022-01-10 21:41:53,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:53,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:53,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:53,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:53,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:53,917 INFO L87 Difference]: Start difference. First operand 463 states and 575 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:54,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:54,084 INFO L93 Difference]: Finished difference Result 744 states and 922 transitions. [2022-01-10 21:41:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:54,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 21:41:54,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:54,086 INFO L225 Difference]: With dead ends: 744 [2022-01-10 21:41:54,086 INFO L226 Difference]: Without dead ends: 586 [2022-01-10 21:41:54,086 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 21:41:54,086 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 329 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:54,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1927 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:54,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-01-10 21:41:54,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 463. [2022-01-10 21:41:54,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 457 states have (on average 1.24945295404814) internal successors, (571), 462 states have internal predecessors, (571), 0 states have call successors, (0), 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 21:41:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 571 transitions. [2022-01-10 21:41:54,144 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 571 transitions. Word has length 44 [2022-01-10 21:41:54,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:54,144 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 571 transitions. [2022-01-10 21:41:54,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:54,144 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 571 transitions. [2022-01-10 21:41:54,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 21:41:54,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:54,145 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] [2022-01-10 21:41:54,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-10 21:41:54,145 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:54,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:54,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1722616656, now seen corresponding path program 1 times [2022-01-10 21:41:54,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:54,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772218622] [2022-01-10 21:41:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:54,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:54,186 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 21:41:54,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:54,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772218622] [2022-01-10 21:41:54,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772218622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:54,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:54,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:54,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046116752] [2022-01-10 21:41:54,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:54,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:54,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:54,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:54,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:54,187 INFO L87 Difference]: Start difference. First operand 463 states and 571 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 21:41:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:54,267 INFO L93 Difference]: Finished difference Result 992 states and 1207 transitions. [2022-01-10 21:41:54,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:54,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-10 21:41:54,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:54,268 INFO L225 Difference]: With dead ends: 992 [2022-01-10 21:41:54,268 INFO L226 Difference]: Without dead ends: 570 [2022-01-10 21:41:54,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:54,269 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 459 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:54,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 1005 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:54,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-01-10 21:41:54,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 509. [2022-01-10 21:41:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 503 states have (on average 1.234592445328032) internal successors, (621), 508 states have internal predecessors, (621), 0 states have call successors, (0), 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 21:41:54,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 621 transitions. [2022-01-10 21:41:54,317 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 621 transitions. Word has length 46 [2022-01-10 21:41:54,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:54,317 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 621 transitions. [2022-01-10 21:41:54,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 21:41:54,317 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 621 transitions. [2022-01-10 21:41:54,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 21:41:54,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:54,318 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] [2022-01-10 21:41:54,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-10 21:41:54,318 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1851699375, now seen corresponding path program 1 times [2022-01-10 21:41:54,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:54,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328700477] [2022-01-10 21:41:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:54,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:54,395 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 21:41:54,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:54,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328700477] [2022-01-10 21:41:54,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328700477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:54,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:54,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:41:54,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205403972] [2022-01-10 21:41:54,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:54,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:41:54,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:54,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:41:54,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:54,396 INFO L87 Difference]: Start difference. First operand 509 states and 621 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 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 21:41:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:54,661 INFO L93 Difference]: Finished difference Result 685 states and 823 transitions. [2022-01-10 21:41:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 21:41:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-10 21:41:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:54,663 INFO L225 Difference]: With dead ends: 685 [2022-01-10 21:41:54,663 INFO L226 Difference]: Without dead ends: 603 [2022-01-10 21:41:54,663 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 21:41:54,663 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 545 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:54,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 2445 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-01-10 21:41:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 509. [2022-01-10 21:41:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 503 states have (on average 1.2226640159045725) internal successors, (615), 508 states have internal predecessors, (615), 0 states have call successors, (0), 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 21:41:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 615 transitions. [2022-01-10 21:41:54,736 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 615 transitions. Word has length 46 [2022-01-10 21:41:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:54,736 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 615 transitions. [2022-01-10 21:41:54,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 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 21:41:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 615 transitions. [2022-01-10 21:41:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 21:41:54,737 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:54,737 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 21:41:54,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-10 21:41:54,737 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:54,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:54,738 INFO L85 PathProgramCache]: Analyzing trace with hash 437417489, now seen corresponding path program 1 times [2022-01-10 21:41:54,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:54,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505442720] [2022-01-10 21:41:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:54,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:54,805 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 21:41:54,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:54,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505442720] [2022-01-10 21:41:54,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505442720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:54,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:54,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:54,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122416585] [2022-01-10 21:41:54,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:54,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:54,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:54,806 INFO L87 Difference]: Start difference. First operand 509 states and 615 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 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 21:41:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:54,999 INFO L93 Difference]: Finished difference Result 953 states and 1165 transitions. [2022-01-10 21:41:54,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:54,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 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 21:41:54,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:55,001 INFO L225 Difference]: With dead ends: 953 [2022-01-10 21:41:55,001 INFO L226 Difference]: Without dead ends: 822 [2022-01-10 21:41:55,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 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 21:41:55,001 INFO L933 BasicCegarLoop]: 697 mSDtfsCounter, 528 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:55,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 2196 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:55,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-01-10 21:41:55,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 509. [2022-01-10 21:41:55,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 503 states have (on average 1.220675944333996) internal successors, (614), 508 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 21:41:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 614 transitions. [2022-01-10 21:41:55,058 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 614 transitions. Word has length 47 [2022-01-10 21:41:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:55,059 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 614 transitions. [2022-01-10 21:41:55,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 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 21:41:55,059 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 614 transitions. [2022-01-10 21:41:55,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 21:41:55,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:55,060 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 21:41:55,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-10 21:41:55,060 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:55,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1210787857, now seen corresponding path program 1 times [2022-01-10 21:41:55,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:55,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046490203] [2022-01-10 21:41:55,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:55,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:55,130 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 21:41:55,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:55,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046490203] [2022-01-10 21:41:55,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046490203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:55,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:55,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:55,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399730963] [2022-01-10 21:41:55,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:55,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:55,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:55,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:55,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:55,131 INFO L87 Difference]: Start difference. First operand 509 states and 614 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 21:41:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:55,346 INFO L93 Difference]: Finished difference Result 545 states and 647 transitions. [2022-01-10 21:41:55,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:55,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 21:41:55,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:55,347 INFO L225 Difference]: With dead ends: 545 [2022-01-10 21:41:55,347 INFO L226 Difference]: Without dead ends: 370 [2022-01-10 21:41:55,347 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 21:41:55,347 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 398 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:55,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 2095 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:55,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-01-10 21:41:55,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 339. [2022-01-10 21:41:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 333 states have (on average 1.2372372372372373) internal successors, (412), 338 states have internal predecessors, (412), 0 states have call successors, (0), 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 21:41:55,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 412 transitions. [2022-01-10 21:41:55,389 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 412 transitions. Word has length 47 [2022-01-10 21:41:55,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:55,389 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 412 transitions. [2022-01-10 21:41:55,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 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 21:41:55,389 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 412 transitions. [2022-01-10 21:41:55,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 21:41:55,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:55,390 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] [2022-01-10 21:41:55,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-10 21:41:55,390 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:55,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:55,390 INFO L85 PathProgramCache]: Analyzing trace with hash -899678092, now seen corresponding path program 1 times [2022-01-10 21:41:55,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:55,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219994795] [2022-01-10 21:41:55,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:55,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:55,421 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 21:41:55,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:55,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219994795] [2022-01-10 21:41:55,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219994795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:55,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:55,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:55,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248737160] [2022-01-10 21:41:55,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:55,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:55,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:55,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:55,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:55,423 INFO L87 Difference]: Start difference. First operand 339 states and 412 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 21:41:55,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:55,468 INFO L93 Difference]: Finished difference Result 380 states and 455 transitions. [2022-01-10 21:41:55,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:55,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-01-10 21:41:55,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:55,469 INFO L225 Difference]: With dead ends: 380 [2022-01-10 21:41:55,469 INFO L226 Difference]: Without dead ends: 338 [2022-01-10 21:41:55,470 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 21:41:55,470 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 8 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:55,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 849 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:55,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-10 21:41:55,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-01-10 21:41:55,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 332 states have (on average 1.2349397590361446) internal successors, (410), 337 states have internal predecessors, (410), 0 states have call successors, (0), 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 21:41:55,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 410 transitions. [2022-01-10 21:41:55,505 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 410 transitions. Word has length 49 [2022-01-10 21:41:55,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:55,506 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 410 transitions. [2022-01-10 21:41:55,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 21:41:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 410 transitions. [2022-01-10 21:41:55,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 21:41:55,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:55,506 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] [2022-01-10 21:41:55,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-10 21:41:55,507 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:55,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:55,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2141993108, now seen corresponding path program 1 times [2022-01-10 21:41:55,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:55,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9383955] [2022-01-10 21:41:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:55,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:55,548 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 21:41:55,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:55,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9383955] [2022-01-10 21:41:55,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9383955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:55,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:55,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:55,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251510734] [2022-01-10 21:41:55,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:55,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:55,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:55,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:55,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:55,549 INFO L87 Difference]: Start difference. First operand 338 states and 410 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 21:41:55,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:55,622 INFO L93 Difference]: Finished difference Result 359 states and 429 transitions. [2022-01-10 21:41:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:55,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-01-10 21:41:55,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:55,623 INFO L225 Difference]: With dead ends: 359 [2022-01-10 21:41:55,623 INFO L226 Difference]: Without dead ends: 338 [2022-01-10 21:41:55,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:55,624 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 97 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:55,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1636 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:55,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-10 21:41:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 319. [2022-01-10 21:41:55,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 315 states have (on average 1.234920634920635) internal successors, (389), 318 states have internal predecessors, (389), 0 states have call successors, (0), 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 21:41:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 389 transitions. [2022-01-10 21:41:55,658 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 389 transitions. Word has length 49 [2022-01-10 21:41:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:55,658 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 389 transitions. [2022-01-10 21:41:55,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 21:41:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 389 transitions. [2022-01-10 21:41:55,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 21:41:55,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:55,659 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] [2022-01-10 21:41:55,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-10 21:41:55,659 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:55,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:55,659 INFO L85 PathProgramCache]: Analyzing trace with hash 95483931, now seen corresponding path program 1 times [2022-01-10 21:41:55,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:55,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623570178] [2022-01-10 21:41:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:55,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:55,703 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 21:41:55,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:55,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623570178] [2022-01-10 21:41:55,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623570178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:55,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:55,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:41:55,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709788008] [2022-01-10 21:41:55,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:55,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:41:55,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:41:55,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:55,705 INFO L87 Difference]: Start difference. First operand 319 states and 389 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 21:41:55,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:55,810 INFO L93 Difference]: Finished difference Result 338 states and 407 transitions. [2022-01-10 21:41:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:55,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-01-10 21:41:55,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:55,811 INFO L225 Difference]: With dead ends: 338 [2022-01-10 21:41:55,811 INFO L226 Difference]: Without dead ends: 314 [2022-01-10 21:41:55,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 21:41:55,811 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 74 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:55,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 1883 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:55,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-01-10 21:41:55,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-01-10 21:41:55,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 310 states have (on average 1.235483870967742) internal successors, (383), 313 states have internal predecessors, (383), 0 states have call successors, (0), 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 21:41:55,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 383 transitions. [2022-01-10 21:41:55,857 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 383 transitions. Word has length 49 [2022-01-10 21:41:55,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:55,857 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 383 transitions. [2022-01-10 21:41:55,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 21:41:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 383 transitions. [2022-01-10 21:41:55,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 21:41:55,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:55,858 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] [2022-01-10 21:41:55,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-10 21:41:55,858 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash -314207091, now seen corresponding path program 1 times [2022-01-10 21:41:55,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:55,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106364961] [2022-01-10 21:41:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:55,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:55,888 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 21:41:55,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:55,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106364961] [2022-01-10 21:41:55,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106364961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:55,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:55,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:55,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510422159] [2022-01-10 21:41:55,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:55,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:55,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:55,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:55,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:55,889 INFO L87 Difference]: Start difference. First operand 314 states and 383 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 21:41:55,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:55,953 INFO L93 Difference]: Finished difference Result 449 states and 554 transitions. [2022-01-10 21:41:55,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:55,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 21:41:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:55,954 INFO L225 Difference]: With dead ends: 449 [2022-01-10 21:41:55,954 INFO L226 Difference]: Without dead ends: 276 [2022-01-10 21:41:55,954 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 21:41:55,954 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 55 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:55,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 539 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-01-10 21:41:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-01-10 21:41:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 274 states have (on average 1.218978102189781) internal successors, (334), 275 states have internal predecessors, (334), 0 states have call successors, (0), 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 21:41:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 334 transitions. [2022-01-10 21:41:55,984 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 334 transitions. Word has length 51 [2022-01-10 21:41:55,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:55,984 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 334 transitions. [2022-01-10 21:41:55,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 21:41:55,984 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 334 transitions. [2022-01-10 21:41:55,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 21:41:55,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:55,985 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 21:41:55,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-10 21:41:55,985 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:55,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:55,985 INFO L85 PathProgramCache]: Analyzing trace with hash 874159025, now seen corresponding path program 1 times [2022-01-10 21:41:55,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:55,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720018284] [2022-01-10 21:41:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:55,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:56,036 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 21:41:56,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:56,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720018284] [2022-01-10 21:41:56,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720018284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:56,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:56,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:41:56,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948985948] [2022-01-10 21:41:56,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:56,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:41:56,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:56,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:41:56,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:56,038 INFO L87 Difference]: Start difference. First operand 276 states and 334 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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 21:41:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:56,127 INFO L93 Difference]: Finished difference Result 288 states and 345 transitions. [2022-01-10 21:41:56,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:56,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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 21:41:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:56,128 INFO L225 Difference]: With dead ends: 288 [2022-01-10 21:41:56,128 INFO L226 Difference]: Without dead ends: 229 [2022-01-10 21:41:56,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 21:41:56,129 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 79 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:56,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 1794 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-01-10 21:41:56,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-01-10 21:41:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 227 states have (on average 1.2158590308370043) internal successors, (276), 228 states have internal predecessors, (276), 0 states have call successors, (0), 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 21:41:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 276 transitions. [2022-01-10 21:41:56,156 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 276 transitions. Word has length 54 [2022-01-10 21:41:56,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:56,156 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 276 transitions. [2022-01-10 21:41:56,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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 21:41:56,156 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 276 transitions. [2022-01-10 21:41:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 21:41:56,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:56,157 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 21:41:56,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-10 21:41:56,157 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:56,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2060632170, now seen corresponding path program 1 times [2022-01-10 21:41:56,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:56,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622530661] [2022-01-10 21:41:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:56,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:56,206 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 21:41:56,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:56,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622530661] [2022-01-10 21:41:56,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622530661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:56,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:56,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:56,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323480188] [2022-01-10 21:41:56,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:56,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:56,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:56,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:56,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:56,207 INFO L87 Difference]: Start difference. First operand 229 states and 276 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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 21:41:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:56,336 INFO L93 Difference]: Finished difference Result 342 states and 410 transitions. [2022-01-10 21:41:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 21:41:56,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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 21:41:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:56,337 INFO L225 Difference]: With dead ends: 342 [2022-01-10 21:41:56,337 INFO L226 Difference]: Without dead ends: 323 [2022-01-10 21:41:56,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:56,337 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 292 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:56,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 1617 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-01-10 21:41:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 223. [2022-01-10 21:41:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 221 states have (on average 1.2171945701357465) internal successors, (269), 222 states have internal predecessors, (269), 0 states have call successors, (0), 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 21:41:56,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 269 transitions. [2022-01-10 21:41:56,375 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 269 transitions. Word has length 59 [2022-01-10 21:41:56,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:56,375 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 269 transitions. [2022-01-10 21:41:56,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 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 21:41:56,375 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 269 transitions. [2022-01-10 21:41:56,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 21:41:56,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:56,376 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] [2022-01-10 21:41:56,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-10 21:41:56,376 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:56,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:56,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1480797736, now seen corresponding path program 1 times [2022-01-10 21:41:56,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:56,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203037381] [2022-01-10 21:41:56,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:56,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:56,432 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 21:41:56,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:56,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203037381] [2022-01-10 21:41:56,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203037381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:56,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:56,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:41:56,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948263266] [2022-01-10 21:41:56,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:56,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:41:56,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:41:56,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:56,434 INFO L87 Difference]: Start difference. First operand 223 states and 269 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:56,553 INFO L93 Difference]: Finished difference Result 289 states and 347 transitions. [2022-01-10 21:41:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:56,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-01-10 21:41:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:56,554 INFO L225 Difference]: With dead ends: 289 [2022-01-10 21:41:56,554 INFO L226 Difference]: Without dead ends: 223 [2022-01-10 21:41:56,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 21:41:56,555 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 69 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:56,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1401 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:56,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-01-10 21:41:56,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-01-10 21:41:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 221 states have (on average 1.2126696832579185) internal successors, (268), 222 states have internal predecessors, (268), 0 states have call successors, (0), 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 21:41:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 268 transitions. [2022-01-10 21:41:56,592 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 268 transitions. Word has length 62 [2022-01-10 21:41:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:56,592 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 268 transitions. [2022-01-10 21:41:56,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 268 transitions. [2022-01-10 21:41:56,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 21:41:56,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:56,593 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] [2022-01-10 21:41:56,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-10 21:41:56,593 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:56,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2019794455, now seen corresponding path program 1 times [2022-01-10 21:41:56,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:56,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078368129] [2022-01-10 21:41:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:56,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:56,667 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 21:41:56,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:56,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078368129] [2022-01-10 21:41:56,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078368129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:56,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:56,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:56,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086581359] [2022-01-10 21:41:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:56,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:56,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:56,668 INFO L87 Difference]: Start difference. First operand 223 states and 268 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:56,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:56,848 INFO L93 Difference]: Finished difference Result 377 states and 442 transitions. [2022-01-10 21:41:56,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:56,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-10 21:41:56,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:56,849 INFO L225 Difference]: With dead ends: 377 [2022-01-10 21:41:56,849 INFO L226 Difference]: Without dead ends: 355 [2022-01-10 21:41:56,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-10 21:41:56,850 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 513 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:56,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 1597 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:56,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-01-10 21:41:56,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 226. [2022-01-10 21:41:56,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.2098214285714286) internal successors, (271), 225 states have internal predecessors, (271), 0 states have call successors, (0), 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 21:41:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 271 transitions. [2022-01-10 21:41:56,879 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 271 transitions. Word has length 63 [2022-01-10 21:41:56,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:56,879 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 271 transitions. [2022-01-10 21:41:56,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 271 transitions. [2022-01-10 21:41:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 21:41:56,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:56,880 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 21:41:56,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-10 21:41:56,880 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:56,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1824193868, now seen corresponding path program 1 times [2022-01-10 21:41:56,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:56,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572343964] [2022-01-10 21:41:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:56,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:56,912 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 21:41:56,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:56,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572343964] [2022-01-10 21:41:56,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572343964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:56,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:56,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:56,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422287795] [2022-01-10 21:41:56,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:56,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:56,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:56,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:56,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:56,913 INFO L87 Difference]: Start difference. First operand 226 states and 271 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:41:56,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:56,962 INFO L93 Difference]: Finished difference Result 418 states and 510 transitions. [2022-01-10 21:41:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:56,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:41:56,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:56,963 INFO L225 Difference]: With dead ends: 418 [2022-01-10 21:41:56,963 INFO L226 Difference]: Without dead ends: 280 [2022-01-10 21:41:56,963 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 21:41:56,964 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 130 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:56,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 351 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:56,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-01-10 21:41:56,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 226. [2022-01-10 21:41:56,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.2008928571428572) internal successors, (269), 225 states have internal predecessors, (269), 0 states have call successors, (0), 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 21:41:56,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 269 transitions. [2022-01-10 21:41:56,993 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 269 transitions. Word has length 64 [2022-01-10 21:41:56,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:56,993 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 269 transitions. [2022-01-10 21:41:56,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:41:56,993 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 269 transitions. [2022-01-10 21:41:56,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 21:41:56,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:56,994 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 21:41:56,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-10 21:41:56,994 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:56,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash -63405258, now seen corresponding path program 1 times [2022-01-10 21:41:56,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:56,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176596085] [2022-01-10 21:41:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:56,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:57,039 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 21:41:57,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:57,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176596085] [2022-01-10 21:41:57,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176596085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:57,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:57,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:57,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734141130] [2022-01-10 21:41:57,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:57,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:57,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:57,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:57,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:57,040 INFO L87 Difference]: Start difference. First operand 226 states and 269 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 21:41:57,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:57,145 INFO L93 Difference]: Finished difference Result 401 states and 483 transitions. [2022-01-10 21:41:57,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:57,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 21:41:57,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:57,146 INFO L225 Difference]: With dead ends: 401 [2022-01-10 21:41:57,146 INFO L226 Difference]: Without dead ends: 333 [2022-01-10 21:41:57,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:57,146 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 539 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:57,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 884 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:57,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-01-10 21:41:57,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 180. [2022-01-10 21:41:57,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 1.2191011235955056) internal successors, (217), 179 states have internal predecessors, (217), 0 states have call successors, (0), 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 21:41:57,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 217 transitions. [2022-01-10 21:41:57,174 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 217 transitions. Word has length 65 [2022-01-10 21:41:57,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:57,174 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 217 transitions. [2022-01-10 21:41:57,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 21:41:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 217 transitions. [2022-01-10 21:41:57,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 21:41:57,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:57,175 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] [2022-01-10 21:41:57,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-10 21:41:57,175 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:57,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:57,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1268951914, now seen corresponding path program 1 times [2022-01-10 21:41:57,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:57,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480070150] [2022-01-10 21:41:57,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:57,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:57,222 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 21:41:57,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:57,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480070150] [2022-01-10 21:41:57,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480070150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:57,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:57,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:57,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240425916] [2022-01-10 21:41:57,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:57,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:57,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:57,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:57,223 INFO L87 Difference]: Start difference. First operand 180 states and 217 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:57,277 INFO L93 Difference]: Finished difference Result 254 states and 299 transitions. [2022-01-10 21:41:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:57,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-01-10 21:41:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:57,278 INFO L225 Difference]: With dead ends: 254 [2022-01-10 21:41:57,278 INFO L226 Difference]: Without dead ends: 230 [2022-01-10 21:41:57,278 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 21:41:57,279 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 80 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 474 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 21:41:57,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 474 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-10 21:41:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 181. [2022-01-10 21:41:57,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 179 states have (on average 1.217877094972067) internal successors, (218), 180 states have internal predecessors, (218), 0 states have call successors, (0), 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 21:41:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 218 transitions. [2022-01-10 21:41:57,306 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 218 transitions. Word has length 68 [2022-01-10 21:41:57,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:57,307 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 218 transitions. [2022-01-10 21:41:57,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 218 transitions. [2022-01-10 21:41:57,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 21:41:57,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:57,307 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] [2022-01-10 21:41:57,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-10 21:41:57,307 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:57,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1871404256, now seen corresponding path program 1 times [2022-01-10 21:41:57,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:57,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308873214] [2022-01-10 21:41:57,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:57,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:57,350 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 21:41:57,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:57,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308873214] [2022-01-10 21:41:57,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308873214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:57,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:57,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:41:57,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296360201] [2022-01-10 21:41:57,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:57,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:41:57,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:57,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:41:57,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:41:57,351 INFO L87 Difference]: Start difference. First operand 181 states and 218 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:57,402 INFO L93 Difference]: Finished difference Result 242 states and 282 transitions. [2022-01-10 21:41:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:41:57,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-10 21:41:57,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:57,404 INFO L225 Difference]: With dead ends: 242 [2022-01-10 21:41:57,404 INFO L226 Difference]: Without dead ends: 218 [2022-01-10 21:41:57,404 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 21:41:57,405 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 51 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:57,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 298 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-01-10 21:41:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 183. [2022-01-10 21:41:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.2209944751381216) internal successors, (221), 182 states have internal predecessors, (221), 0 states have call successors, (0), 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 21:41:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 221 transitions. [2022-01-10 21:41:57,434 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 221 transitions. Word has length 73 [2022-01-10 21:41:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:57,434 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 221 transitions. [2022-01-10 21:41:57,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:41:57,435 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 221 transitions. [2022-01-10 21:41:57,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 21:41:57,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:57,435 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] [2022-01-10 21:41:57,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-10 21:41:57,435 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:57,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1730169619, now seen corresponding path program 1 times [2022-01-10 21:41:57,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:57,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548385727] [2022-01-10 21:41:57,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:57,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:57,491 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 21:41:57,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:57,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548385727] [2022-01-10 21:41:57,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548385727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:57,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:57,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:57,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34355492] [2022-01-10 21:41:57,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:57,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:57,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:57,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:57,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:57,493 INFO L87 Difference]: Start difference. First operand 183 states and 221 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 21:41:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:57,542 INFO L93 Difference]: Finished difference Result 247 states and 287 transitions. [2022-01-10 21:41:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-10 21:41:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:57,543 INFO L225 Difference]: With dead ends: 247 [2022-01-10 21:41:57,543 INFO L226 Difference]: Without dead ends: 221 [2022-01-10 21:41:57,543 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 21:41:57,543 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 34 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:57,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 510 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:57,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-01-10 21:41:57,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 187. [2022-01-10 21:41:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.2162162162162162) internal successors, (225), 186 states have internal predecessors, (225), 0 states have call successors, (0), 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 21:41:57,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2022-01-10 21:41:57,580 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 75 [2022-01-10 21:41:57,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:57,580 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2022-01-10 21:41:57,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 21:41:57,580 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2022-01-10 21:41:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 21:41:57,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:57,581 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] [2022-01-10 21:41:57,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-10 21:41:57,582 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:57,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:57,582 INFO L85 PathProgramCache]: Analyzing trace with hash 65516339, now seen corresponding path program 1 times [2022-01-10 21:41:57,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:57,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010898417] [2022-01-10 21:41:57,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:57,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:57,680 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 21:41:57,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:57,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010898417] [2022-01-10 21:41:57,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010898417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:57,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:57,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 21:41:57,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239808089] [2022-01-10 21:41:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:57,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 21:41:57,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:57,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 21:41:57,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:41:57,684 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 21:41:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:57,769 INFO L93 Difference]: Finished difference Result 275 states and 328 transitions. [2022-01-10 21:41:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 21:41:57,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-10 21:41:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:57,770 INFO L225 Difference]: With dead ends: 275 [2022-01-10 21:41:57,770 INFO L226 Difference]: Without dead ends: 219 [2022-01-10 21:41:57,770 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 21:41:57,770 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 187 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:57,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 752 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-01-10 21:41:57,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2022-01-10 21:41:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.1689189189189189) internal successors, (173), 148 states have internal predecessors, (173), 0 states have call successors, (0), 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 21:41:57,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 173 transitions. [2022-01-10 21:41:57,795 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 173 transitions. Word has length 75 [2022-01-10 21:41:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:57,795 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 173 transitions. [2022-01-10 21:41:57,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 21:41:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 173 transitions. [2022-01-10 21:41:57,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 21:41:57,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:57,796 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] [2022-01-10 21:41:57,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-10 21:41:57,796 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash -879291225, now seen corresponding path program 1 times [2022-01-10 21:41:57,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:57,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567181160] [2022-01-10 21:41:57,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:57,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:57,857 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 21:41:57,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:57,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567181160] [2022-01-10 21:41:57,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567181160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:57,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:57,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 21:41:57,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320678014] [2022-01-10 21:41:57,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:57,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 21:41:57,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:57,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 21:41:57,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:41:57,859 INFO L87 Difference]: Start difference. First operand 149 states and 173 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 21:41:58,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:58,021 INFO L93 Difference]: Finished difference Result 410 states and 478 transitions. [2022-01-10 21:41:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 21:41:58,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-10 21:41:58,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:58,022 INFO L225 Difference]: With dead ends: 410 [2022-01-10 21:41:58,022 INFO L226 Difference]: Without dead ends: 390 [2022-01-10 21:41:58,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-10 21:41:58,022 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 593 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:58,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 1126 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:58,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-01-10 21:41:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 158. [2022-01-10 21:41:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.1656050955414012) internal successors, (183), 157 states have internal predecessors, (183), 0 states have call successors, (0), 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 21:41:58,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 183 transitions. [2022-01-10 21:41:58,049 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 183 transitions. Word has length 78 [2022-01-10 21:41:58,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:58,049 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 183 transitions. [2022-01-10 21:41:58,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 21:41:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 183 transitions. [2022-01-10 21:41:58,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 21:41:58,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:58,050 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] [2022-01-10 21:41:58,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-10 21:41:58,050 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:58,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:58,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1179647823, now seen corresponding path program 1 times [2022-01-10 21:41:58,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:58,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393614640] [2022-01-10 21:41:58,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:58,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:58,135 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 21:41:58,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:58,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393614640] [2022-01-10 21:41:58,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393614640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:58,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:58,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 21:41:58,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034784773] [2022-01-10 21:41:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:58,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 21:41:58,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:58,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 21:41:58,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:58,136 INFO L87 Difference]: Start difference. First operand 158 states and 183 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 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 21:41:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:58,445 INFO L93 Difference]: Finished difference Result 374 states and 439 transitions. [2022-01-10 21:41:58,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 21:41:58,445 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 21:41:58,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:58,446 INFO L225 Difference]: With dead ends: 374 [2022-01-10 21:41:58,446 INFO L226 Difference]: Without dead ends: 300 [2022-01-10 21:41:58,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2022-01-10 21:41:58,446 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 392 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:58,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 2558 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:58,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-01-10 21:41:58,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 158. [2022-01-10 21:41:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.1592356687898089) internal successors, (182), 157 states have internal predecessors, (182), 0 states have call successors, (0), 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 21:41:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 182 transitions. [2022-01-10 21:41:58,476 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 182 transitions. Word has length 79 [2022-01-10 21:41:58,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:58,476 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 182 transitions. [2022-01-10 21:41:58,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 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 21:41:58,477 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 182 transitions. [2022-01-10 21:41:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 21:41:58,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:58,477 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] [2022-01-10 21:41:58,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-10 21:41:58,477 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:58,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1845080408, now seen corresponding path program 1 times [2022-01-10 21:41:58,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:58,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515097945] [2022-01-10 21:41:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:58,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:58,557 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 21:41:58,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:58,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515097945] [2022-01-10 21:41:58,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515097945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:58,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:58,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 21:41:58,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79268980] [2022-01-10 21:41:58,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:58,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 21:41:58,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:58,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 21:41:58,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:41:58,558 INFO L87 Difference]: Start difference. First operand 158 states and 182 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 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 21:41:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:58,750 INFO L93 Difference]: Finished difference Result 411 states and 477 transitions. [2022-01-10 21:41:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 21:41:58,751 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-10 21:41:58,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:58,751 INFO L225 Difference]: With dead ends: 411 [2022-01-10 21:41:58,751 INFO L226 Difference]: Without dead ends: 287 [2022-01-10 21:41:58,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-01-10 21:41:58,752 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 221 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:58,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 1625 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:58,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-01-10 21:41:58,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 229. [2022-01-10 21:41:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.131578947368421) internal successors, (258), 228 states have internal predecessors, (258), 0 states have call successors, (0), 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 21:41:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2022-01-10 21:41:58,786 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 84 [2022-01-10 21:41:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:58,786 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2022-01-10 21:41:58,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 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 21:41:58,786 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2022-01-10 21:41:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 21:41:58,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:58,787 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] [2022-01-10 21:41:58,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-10 21:41:58,787 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:58,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:58,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1273829175, now seen corresponding path program 1 times [2022-01-10 21:41:58,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:58,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806567808] [2022-01-10 21:41:58,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:58,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:58,846 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 21:41:58,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:58,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806567808] [2022-01-10 21:41:58,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806567808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:58,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:58,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 21:41:58,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016527828] [2022-01-10 21:41:58,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:58,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 21:41:58,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 21:41:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:41:58,847 INFO L87 Difference]: Start difference. First operand 229 states and 258 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 21:41:59,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:59,001 INFO L93 Difference]: Finished difference Result 424 states and 487 transitions. [2022-01-10 21:41:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 21:41:59,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-10 21:41:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:59,002 INFO L225 Difference]: With dead ends: 424 [2022-01-10 21:41:59,002 INFO L226 Difference]: Without dead ends: 404 [2022-01-10 21:41:59,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-10 21:41:59,003 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 321 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:59,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 1431 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:41:59,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-01-10 21:41:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 226. [2022-01-10 21:41:59,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.1288888888888888) internal successors, (254), 225 states have internal predecessors, (254), 0 states have call successors, (0), 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 21:41:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 254 transitions. [2022-01-10 21:41:59,038 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 254 transitions. Word has length 84 [2022-01-10 21:41:59,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:59,038 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 254 transitions. [2022-01-10 21:41:59,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 21:41:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 254 transitions. [2022-01-10 21:41:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 21:41:59,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:59,039 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] [2022-01-10 21:41:59,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-10 21:41:59,039 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:59,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash -818304445, now seen corresponding path program 1 times [2022-01-10 21:41:59,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:59,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643698336] [2022-01-10 21:41:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:59,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:59,108 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 21:41:59,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:59,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643698336] [2022-01-10 21:41:59,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643698336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:59,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:59,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:41:59,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268426433] [2022-01-10 21:41:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:59,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:41:59,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:59,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:41:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:59,109 INFO L87 Difference]: Start difference. First operand 226 states and 254 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 21:41:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:59,212 INFO L93 Difference]: Finished difference Result 261 states and 292 transitions. [2022-01-10 21:41:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:41:59,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-01-10 21:41:59,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:59,213 INFO L225 Difference]: With dead ends: 261 [2022-01-10 21:41:59,213 INFO L226 Difference]: Without dead ends: 224 [2022-01-10 21:41:59,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 21:41:59,214 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 400 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:59,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 764 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-01-10 21:41:59,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-01-10 21:41:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 1.1210762331838564) internal successors, (250), 223 states have internal predecessors, (250), 0 states have call successors, (0), 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 21:41:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 250 transitions. [2022-01-10 21:41:59,247 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 250 transitions. Word has length 90 [2022-01-10 21:41:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:59,247 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 250 transitions. [2022-01-10 21:41:59,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 21:41:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 250 transitions. [2022-01-10 21:41:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 21:41:59,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:59,248 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:41:59,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-10 21:41:59,248 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:59,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1787209314, now seen corresponding path program 1 times [2022-01-10 21:41:59,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:59,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453812072] [2022-01-10 21:41:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:59,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:59,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:59,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453812072] [2022-01-10 21:41:59,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453812072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:59,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:59,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:41:59,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120415984] [2022-01-10 21:41:59,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:59,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:41:59,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:59,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:41:59,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:41:59,304 INFO L87 Difference]: Start difference. First operand 224 states and 250 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 21:41:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:59,366 INFO L93 Difference]: Finished difference Result 304 states and 341 transitions. [2022-01-10 21:41:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:41:59,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-01-10 21:41:59,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:59,367 INFO L225 Difference]: With dead ends: 304 [2022-01-10 21:41:59,367 INFO L226 Difference]: Without dead ends: 261 [2022-01-10 21:41:59,367 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 21:41:59,367 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 75 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:59,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 471 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-10 21:41:59,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 226. [2022-01-10 21:41:59,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.12) internal successors, (252), 225 states have internal predecessors, (252), 0 states have call successors, (0), 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 21:41:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 252 transitions. [2022-01-10 21:41:59,402 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 252 transitions. Word has length 90 [2022-01-10 21:41:59,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:59,402 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 252 transitions. [2022-01-10 21:41:59,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 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 21:41:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 252 transitions. [2022-01-10 21:41:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 21:41:59,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:59,403 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:41:59,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-10 21:41:59,403 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:59,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:59,403 INFO L85 PathProgramCache]: Analyzing trace with hash -258980222, now seen corresponding path program 1 times [2022-01-10 21:41:59,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:59,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237269964] [2022-01-10 21:41:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:59,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:41:59,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:59,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237269964] [2022-01-10 21:41:59,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237269964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:59,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:59,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:41:59,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809317188] [2022-01-10 21:41:59,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:59,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:41:59,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:41:59,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:41:59,468 INFO L87 Difference]: Start difference. First operand 226 states and 252 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 21:41:59,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:41:59,572 INFO L93 Difference]: Finished difference Result 284 states and 314 transitions. [2022-01-10 21:41:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 21:41:59,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-01-10 21:41:59,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:41:59,573 INFO L225 Difference]: With dead ends: 284 [2022-01-10 21:41:59,573 INFO L226 Difference]: Without dead ends: 230 [2022-01-10 21:41:59,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 21:41:59,574 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 77 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:41:59,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1047 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:41:59,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-10 21:41:59,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 225. [2022-01-10 21:41:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.1071428571428572) internal successors, (248), 224 states have internal predecessors, (248), 0 states have call successors, (0), 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 21:41:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 248 transitions. [2022-01-10 21:41:59,608 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 248 transitions. Word has length 90 [2022-01-10 21:41:59,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:41:59,608 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 248 transitions. [2022-01-10 21:41:59,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 21:41:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 248 transitions. [2022-01-10 21:41:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 21:41:59,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:41:59,609 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] [2022-01-10 21:41:59,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-10 21:41:59,609 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:41:59,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:41:59,609 INFO L85 PathProgramCache]: Analyzing trace with hash 480751571, now seen corresponding path program 1 times [2022-01-10 21:41:59,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:41:59,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286885729] [2022-01-10 21:41:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:41:59,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:41:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:41:59,724 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 21:41:59,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:41:59,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286885729] [2022-01-10 21:41:59,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286885729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:41:59,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:41:59,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 21:41:59,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044323603] [2022-01-10 21:41:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:41:59,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 21:41:59,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:41:59,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 21:41:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 21:41:59,726 INFO L87 Difference]: Start difference. First operand 225 states and 248 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 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 21:42:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:00,065 INFO L93 Difference]: Finished difference Result 500 states and 558 transitions. [2022-01-10 21:42:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 21:42:00,066 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-10 21:42:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:00,067 INFO L225 Difference]: With dead ends: 500 [2022-01-10 21:42:00,067 INFO L226 Difference]: Without dead ends: 465 [2022-01-10 21:42:00,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-01-10 21:42:00,067 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1416 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:00,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1416 Valid, 1128 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:42:00,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-01-10 21:42:00,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 232. [2022-01-10 21:42:00,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.1125541125541125) internal successors, (257), 231 states have internal predecessors, (257), 0 states have call successors, (0), 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 21:42:00,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 257 transitions. [2022-01-10 21:42:00,104 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 257 transitions. Word has length 91 [2022-01-10 21:42:00,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:00,105 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 257 transitions. [2022-01-10 21:42:00,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 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 21:42:00,105 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 257 transitions. [2022-01-10 21:42:00,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 21:42:00,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:00,105 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] [2022-01-10 21:42:00,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-10 21:42:00,105 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:42:00,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1643771459, now seen corresponding path program 1 times [2022-01-10 21:42:00,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:00,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512794039] [2022-01-10 21:42:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:00,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:00,185 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 21:42:00,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:00,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512794039] [2022-01-10 21:42:00,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512794039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:00,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:00,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 21:42:00,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711914177] [2022-01-10 21:42:00,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:00,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 21:42:00,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:00,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 21:42:00,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 21:42:00,187 INFO L87 Difference]: Start difference. First operand 232 states and 257 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 21:42:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:00,293 INFO L93 Difference]: Finished difference Result 267 states and 295 transitions. [2022-01-10 21:42:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 21:42:00,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-01-10 21:42:00,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:00,294 INFO L225 Difference]: With dead ends: 267 [2022-01-10 21:42:00,294 INFO L226 Difference]: Without dead ends: 145 [2022-01-10 21:42:00,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 21:42:00,294 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 390 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:00,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 739 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-01-10 21:42:00,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 139. [2022-01-10 21:42:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.108695652173913) internal successors, (153), 138 states have internal predecessors, (153), 0 states have call successors, (0), 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 21:42:00,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-01-10 21:42:00,319 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 95 [2022-01-10 21:42:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:00,319 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-01-10 21:42:00,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 21:42:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-01-10 21:42:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 21:42:00,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:42:00,320 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, 1, 1, 1, 1, 1, 1, 1, 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 21:42:00,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-10 21:42:00,320 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 50 more)] === [2022-01-10 21:42:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:42:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash 543577923, now seen corresponding path program 1 times [2022-01-10 21:42:00,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:42:00,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743968116] [2022-01-10 21:42:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:42:00,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:42:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:42:00,405 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 21:42:00,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:42:00,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743968116] [2022-01-10 21:42:00,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743968116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:42:00,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:42:00,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 21:42:00,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229348543] [2022-01-10 21:42:00,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:42:00,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 21:42:00,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:42:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 21:42:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 21:42:00,407 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 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 21:42:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:42:00,558 INFO L93 Difference]: Finished difference Result 181 states and 200 transitions. [2022-01-10 21:42:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 21:42:00,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-10 21:42:00,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:42:00,558 INFO L225 Difference]: With dead ends: 181 [2022-01-10 21:42:00,558 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 21:42:00,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-01-10 21:42:00,559 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 491 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:42:00,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [491 Valid, 823 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:42:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 21:42:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 21:42:00,560 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 21:42:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 21:42:00,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2022-01-10 21:42:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:42:00,560 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 21:42:00,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 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 21:42:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 21:42:00,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 21:42:00,562 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (52 of 53 remaining) [2022-01-10 21:42:00,571 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION (51 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (50 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION (49 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION (48 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (47 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (46 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (45 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (44 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (43 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (42 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (41 of 53 remaining) [2022-01-10 21:42:00,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (40 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (39 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (38 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (37 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (36 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (35 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (34 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (33 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (32 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (31 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION (30 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION (29 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION (28 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (27 of 53 remaining) [2022-01-10 21:42:00,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (26 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (25 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (24 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (23 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (22 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (21 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (20 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION (19 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (18 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (17 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION (16 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (15 of 53 remaining) [2022-01-10 21:42:00,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (14 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (13 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION (12 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION (11 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (10 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION (9 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (8 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION (7 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (6 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (5 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (4 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (3 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (2 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (1 of 53 remaining) [2022-01-10 21:42:00,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (0 of 53 remaining) [2022-01-10 21:42:00,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-10 21:42:00,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.