/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_BITWISE.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 10:02:03,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 10:02:03,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 10:02:03,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 10:02:03,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 10:02:03,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 10:02:03,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 10:02:03,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 10:02:03,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 10:02:03,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 10:02:03,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 10:02:03,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 10:02:03,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 10:02:03,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 10:02:03,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 10:02:03,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 10:02:03,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 10:02:03,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 10:02:03,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 10:02:03,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 10:02:03,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 10:02:03,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 10:02:03,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 10:02:03,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 10:02:03,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 10:02:03,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 10:02:03,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 10:02:03,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 10:02:03,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 10:02:03,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 10:02:03,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 10:02:03,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 10:02:03,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 10:02:03,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 10:02:03,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 10:02:03,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 10:02:03,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 10:02:03,741 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 10:02:03,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 10:02:03,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 10:02:03,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 10:02:03,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 10:02:03,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 10:02:03,744 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 10:02:03,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 10:02:03,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 10:02:03,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 10:02:03,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 10:02:03,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 10:02:03,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 10:02:03,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 10:02:03,745 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 10:02:03,745 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 10:02:03,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 10:02:03,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 10:02:03,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 10:02:03,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 10:02:03,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 10:02:03,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 10:02:03,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 10:02:03,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 10:02:03,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 10:02:03,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 10:02:03,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 10:02:03,748 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 10:02:03,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 10:02:03,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 10:02:03,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 10:02:03,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 10:02:03,750 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 10:02:03,750 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 10:02:03,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 10:02:03,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 10:02:03,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 10:02:03,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 10:02:03,972 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 10:02:03,973 INFO L432 ainManager$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 10:02:04,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b09a01947/7fa36892a08741dcb3caf34e0cd1f331/FLAG3eb3bfa20 [2022-01-10 10:02:04,513 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 10:02:04,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-2.c [2022-01-10 10:02:04,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b09a01947/7fa36892a08741dcb3caf34e0cd1f331/FLAG3eb3bfa20 [2022-01-10 10:02:05,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b09a01947/7fa36892a08741dcb3caf34e0cd1f331 [2022-01-10 10:02:05,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 10:02:05,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 10:02:05,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 10:02:05,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 10:02:05,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 10:02:05,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625f918c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05, skipping insertion in model container [2022-01-10 10:02:05,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 10:02:05,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 10:02:05,444 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 10:02:05,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 10:02:05,465 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 10:02:05,572 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 10:02:05,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 10:02:05,592 INFO L208 MainTranslator]: Completed translation [2022-01-10 10:02:05,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05 WrapperNode [2022-01-10 10:02:05,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 10:02:05,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 10:02:05,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 10:02:05,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 10:02:05,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,695 INFO L137 Inliner]: procedures = 41, calls = 76, calls flagged for inlining = 71, calls inlined = 137, statements flattened = 2437 [2022-01-10 10:02:05,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 10:02:05,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 10:02:05,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 10:02:05,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 10:02:05,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 10:02:05,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 10:02:05,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 10:02:05,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 10:02:05,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (1/1) ... [2022-01-10 10:02:05,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 10:02:05,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 10:02:05,825 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 10:02:05,828 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 10:02:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 10:02:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 10:02:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 10:02:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 10:02:06,079 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 10:02:06,082 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 10:02:06,091 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,113 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,116 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,120 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,121 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,121 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,135 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,144 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,147 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,151 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,152 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,154 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,156 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,158 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,159 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,160 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,161 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,163 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,163 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,163 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,165 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,166 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,168 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,170 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,171 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,173 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,175 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,175 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,176 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:06,177 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 10:02:07,085 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##658: assume !false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##657: assume false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##665: assume !false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##664: assume false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##683: assume false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume !false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume false; [2022-01-10 10:02:07,086 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##640: assume !false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume !false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##284: assume false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2022-01-10 10:02:07,087 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##369: assume !false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##357: assume false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##358: assume !false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##368: assume false; [2022-01-10 10:02:07,088 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume !false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##403: assume false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2022-01-10 10:02:07,089 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##485: assume !false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##484: assume false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##524: assume !false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##523: assume false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##558: assume !false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##557: assume false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2022-01-10 10:02:07,090 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##145: assume !false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2022-01-10 10:02:07,091 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2022-01-10 10:02:07,092 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2022-01-10 10:02:07,092 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2022-01-10 10:02:07,092 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2022-01-10 10:02:07,092 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 10:02:07,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 10:02:07,105 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 10:02:07,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:02:07 BoogieIcfgContainer [2022-01-10 10:02:07,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 10:02:07,108 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 10:02:07,108 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 10:02:07,109 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 10:02:07,111 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:02:07" (1/1) ... [2022-01-10 10:02:07,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:02:07 BasicIcfg [2022-01-10 10:02:07,476 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 10:02:07,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 10:02:07,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 10:02:07,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 10:02:07,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 10:02:05" (1/4) ... [2022-01-10 10:02:07,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e18c22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:02:07, skipping insertion in model container [2022-01-10 10:02:07,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 10:02:05" (2/4) ... [2022-01-10 10:02:07,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e18c22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 10:02:07, skipping insertion in model container [2022-01-10 10:02:07,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 10:02:07" (3/4) ... [2022-01-10 10:02:07,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e18c22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 10:02:07, skipping insertion in model container [2022-01-10 10:02:07,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 10:02:07" (4/4) ... [2022-01-10 10:02:07,483 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-2.cTransformedIcfg [2022-01-10 10:02:07,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 10:02:07,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2022-01-10 10:02:07,541 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 10:02:07,550 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 10:02:07,550 INFO L340 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-01-10 10:02:07,578 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 10:02:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 10:02:07,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:07,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:07,591 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 10:02:07,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1448027614, now seen corresponding path program 1 times [2022-01-10 10:02:07,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:07,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257667598] [2022-01-10 10:02:07,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:07,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:07,915 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 10:02:07,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:07,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257667598] [2022-01-10 10:02:07,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257667598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:07,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:07,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:07,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189868118] [2022-01-10 10:02:07,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:07,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:07,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:07,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:07,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:07,977 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 10:02:08,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:08,391 INFO L93 Difference]: Finished difference Result 1213 states and 1703 transitions. [2022-01-10 10:02:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:08,397 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 10:02:08,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:08,416 INFO L225 Difference]: With dead ends: 1213 [2022-01-10 10:02:08,416 INFO L226 Difference]: Without dead ends: 702 [2022-01-10 10:02:08,424 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 10:02:08,429 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, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:08,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1214 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 10:02:08,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-01-10 10:02:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 679. [2022-01-10 10:02:08,510 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 10:02:08,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 918 transitions. [2022-01-10 10:02:08,512 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 918 transitions. Word has length 12 [2022-01-10 10:02:08,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:08,513 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 918 transitions. [2022-01-10 10:02:08,513 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 10:02:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 918 transitions. [2022-01-10 10:02:08,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 10:02:08,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:08,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:08,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 10:02:08,514 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 10:02:08,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:08,515 INFO L85 PathProgramCache]: Analyzing trace with hash -54459679, now seen corresponding path program 1 times [2022-01-10 10:02:08,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:08,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910780664] [2022-01-10 10:02:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:08,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:08,591 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 10:02:08,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:08,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910780664] [2022-01-10 10:02:08,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910780664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:08,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:08,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:08,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035296464] [2022-01-10 10:02:08,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:08,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:08,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:08,594 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 10:02:08,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:08,775 INFO L93 Difference]: Finished difference Result 698 states and 940 transitions. [2022-01-10 10:02:08,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:08,775 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 10:02:08,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:08,778 INFO L225 Difference]: With dead ends: 698 [2022-01-10 10:02:08,778 INFO L226 Difference]: Without dead ends: 679 [2022-01-10 10:02:08,779 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 10:02:08,780 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:08,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1298 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-01-10 10:02:08,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-01-10 10:02:08,803 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 10:02:08,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 917 transitions. [2022-01-10 10:02:08,805 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 917 transitions. Word has length 12 [2022-01-10 10:02:08,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:08,806 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 917 transitions. [2022-01-10 10:02:08,806 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 10:02:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 917 transitions. [2022-01-10 10:02:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 10:02:08,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:08,807 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 10:02:08,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 10:02:08,807 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 10:02:08,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:08,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1995239899, now seen corresponding path program 1 times [2022-01-10 10:02:08,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:08,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349482512] [2022-01-10 10:02:08,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:08,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:08,896 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 10:02:08,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:08,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349482512] [2022-01-10 10:02:08,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349482512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:08,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:08,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:08,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137747491] [2022-01-10 10:02:08,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:08,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:08,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:08,898 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 10:02:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:08,939 INFO L93 Difference]: Finished difference Result 775 states and 1034 transitions. [2022-01-10 10:02:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:08,939 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 10:02:08,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:08,942 INFO L225 Difference]: With dead ends: 775 [2022-01-10 10:02:08,942 INFO L226 Difference]: Without dead ends: 751 [2022-01-10 10:02:08,946 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 10:02:08,948 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 10:02:08,950 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 10:02:08,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-01-10 10:02:08,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 696. [2022-01-10 10:02:08,974 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 10:02:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 948 transitions. [2022-01-10 10:02:09,013 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 948 transitions. Word has length 18 [2022-01-10 10:02:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:09,014 INFO L470 AbstractCegarLoop]: Abstraction has 696 states and 948 transitions. [2022-01-10 10:02:09,014 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 10:02:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 948 transitions. [2022-01-10 10:02:09,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 10:02:09,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:09,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:09,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 10:02:09,015 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 10:02:09,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash -525905178, now seen corresponding path program 1 times [2022-01-10 10:02:09,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:09,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188612152] [2022-01-10 10:02:09,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:09,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:09,062 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 10:02:09,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:09,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188612152] [2022-01-10 10:02:09,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188612152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:09,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:09,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:09,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391675052] [2022-01-10 10:02:09,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:09,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:09,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:09,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:09,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:09,065 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 10:02:09,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:09,260 INFO L93 Difference]: Finished difference Result 724 states and 982 transitions. [2022-01-10 10:02:09,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:09,261 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 10:02:09,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:09,264 INFO L225 Difference]: With dead ends: 724 [2022-01-10 10:02:09,264 INFO L226 Difference]: Without dead ends: 719 [2022-01-10 10:02:09,264 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 10:02:09,265 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:09,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 1267 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:09,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-01-10 10:02:09,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2022-01-10 10:02:09,285 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 10:02:09,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 977 transitions. [2022-01-10 10:02:09,287 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 977 transitions. Word has length 21 [2022-01-10 10:02:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:09,287 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 977 transitions. [2022-01-10 10:02:09,287 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 10:02:09,288 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 977 transitions. [2022-01-10 10:02:09,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 10:02:09,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:09,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:09,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 10:02:09,289 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 10:02:09,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash -362481359, now seen corresponding path program 1 times [2022-01-10 10:02:09,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:09,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538462255] [2022-01-10 10:02:09,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:09,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:09,335 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 10:02:09,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:09,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538462255] [2022-01-10 10:02:09,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538462255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:09,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:09,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:09,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668214541] [2022-01-10 10:02:09,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:09,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:09,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:09,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:09,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:09,337 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 10:02:09,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:09,408 INFO L93 Difference]: Finished difference Result 1226 states and 1657 transitions. [2022-01-10 10:02:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:09,409 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 10:02:09,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:09,412 INFO L225 Difference]: With dead ends: 1226 [2022-01-10 10:02:09,413 INFO L226 Difference]: Without dead ends: 854 [2022-01-10 10:02:09,414 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 10:02:09,414 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 10:02:09,415 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 10:02:09,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-01-10 10:02:09,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 692. [2022-01-10 10:02:09,441 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 10:02:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 944 transitions. [2022-01-10 10:02:09,443 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 944 transitions. Word has length 21 [2022-01-10 10:02:09,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:09,443 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 944 transitions. [2022-01-10 10:02:09,444 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 10:02:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 944 transitions. [2022-01-10 10:02:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 10:02:09,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:09,445 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 10:02:09,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 10:02:09,445 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 10:02:09,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 877827723, now seen corresponding path program 1 times [2022-01-10 10:02:09,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:09,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337013050] [2022-01-10 10:02:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:09,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:09,487 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 10:02:09,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:09,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337013050] [2022-01-10 10:02:09,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337013050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:09,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:09,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:09,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165444071] [2022-01-10 10:02:09,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:09,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:09,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:09,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:09,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:09,490 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 10:02:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:09,541 INFO L93 Difference]: Finished difference Result 704 states and 957 transitions. [2022-01-10 10:02:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:09,542 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 10:02:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:09,545 INFO L225 Difference]: With dead ends: 704 [2022-01-10 10:02:09,545 INFO L226 Difference]: Without dead ends: 684 [2022-01-10 10:02:09,545 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 10:02:09,547 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 10:02:09,549 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 10:02:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-01-10 10:02:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2022-01-10 10:02:09,579 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 10:02:09,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 934 transitions. [2022-01-10 10:02:09,585 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 934 transitions. Word has length 22 [2022-01-10 10:02:09,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:09,585 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 934 transitions. [2022-01-10 10:02:09,585 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 10:02:09,585 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 934 transitions. [2022-01-10 10:02:09,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 10:02:09,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:09,586 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 10:02:09,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 10:02:09,587 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 10:02:09,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:09,587 INFO L85 PathProgramCache]: Analyzing trace with hash 210648265, now seen corresponding path program 1 times [2022-01-10 10:02:09,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:09,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228390361] [2022-01-10 10:02:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:09,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:09,652 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 10:02:09,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:09,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228390361] [2022-01-10 10:02:09,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228390361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:09,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:09,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:09,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600921458] [2022-01-10 10:02:09,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:09,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:09,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:09,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:09,654 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 10:02:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:09,868 INFO L93 Difference]: Finished difference Result 684 states and 934 transitions. [2022-01-10 10:02:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:09,869 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 10:02:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:09,872 INFO L225 Difference]: With dead ends: 684 [2022-01-10 10:02:09,872 INFO L226 Difference]: Without dead ends: 668 [2022-01-10 10:02:09,872 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 10:02:09,874 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:09,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 990 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:09,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-01-10 10:02:09,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2022-01-10 10:02:09,907 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 10:02:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 917 transitions. [2022-01-10 10:02:09,910 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 917 transitions. Word has length 25 [2022-01-10 10:02:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:09,910 INFO L470 AbstractCegarLoop]: Abstraction has 668 states and 917 transitions. [2022-01-10 10:02:09,910 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 10:02:09,910 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 917 transitions. [2022-01-10 10:02:09,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 10:02:09,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:09,911 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 10:02:09,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 10:02:09,912 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 10:02:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash -723765965, now seen corresponding path program 1 times [2022-01-10 10:02:09,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:09,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256806278] [2022-01-10 10:02:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:09,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:09,956 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 10:02:09,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:09,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256806278] [2022-01-10 10:02:09,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256806278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:09,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:09,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:09,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753137375] [2022-01-10 10:02:09,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:09,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:09,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:09,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:09,958 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 10:02:10,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:10,010 INFO L93 Difference]: Finished difference Result 681 states and 931 transitions. [2022-01-10 10:02:10,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:10,011 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 10:02:10,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:10,014 INFO L225 Difference]: With dead ends: 681 [2022-01-10 10:02:10,014 INFO L226 Difference]: Without dead ends: 666 [2022-01-10 10:02:10,015 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 10:02:10,015 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 10:02:10,015 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 10:02:10,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-01-10 10:02:10,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2022-01-10 10:02:10,043 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 10:02:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 914 transitions. [2022-01-10 10:02:10,045 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 914 transitions. Word has length 26 [2022-01-10 10:02:10,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:10,045 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 914 transitions. [2022-01-10 10:02:10,046 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 10:02:10,046 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 914 transitions. [2022-01-10 10:02:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 10:02:10,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:10,047 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 10:02:10,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 10:02:10,047 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 10:02:10,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:10,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1512514622, now seen corresponding path program 1 times [2022-01-10 10:02:10,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:10,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116334777] [2022-01-10 10:02:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:10,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:10,091 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 10:02:10,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:10,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116334777] [2022-01-10 10:02:10,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116334777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:10,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:10,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:10,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067641481] [2022-01-10 10:02:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:10,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:10,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:10,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:10,093 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 10:02:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:10,332 INFO L93 Difference]: Finished difference Result 865 states and 1180 transitions. [2022-01-10 10:02:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:10,333 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 10:02:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:10,336 INFO L225 Difference]: With dead ends: 865 [2022-01-10 10:02:10,337 INFO L226 Difference]: Without dead ends: 857 [2022-01-10 10:02:10,337 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 10:02:10,338 INFO L933 BasicCegarLoop]: 724 mSDtfsCounter, 128 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:10,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1205 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-01-10 10:02:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 684. [2022-01-10 10:02:10,371 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 10:02:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 941 transitions. [2022-01-10 10:02:10,373 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 941 transitions. Word has length 27 [2022-01-10 10:02:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:10,374 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 941 transitions. [2022-01-10 10:02:10,374 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 10:02:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 941 transitions. [2022-01-10 10:02:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 10:02:10,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:10,375 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 10:02:10,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 10:02:10,375 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 10:02:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash 355662828, now seen corresponding path program 1 times [2022-01-10 10:02:10,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:10,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404195499] [2022-01-10 10:02:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:10,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:10,436 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 10:02:10,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404195499] [2022-01-10 10:02:10,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404195499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:10,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:10,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:10,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74726643] [2022-01-10 10:02:10,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:10,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:10,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:10,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:10,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:10,438 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 10:02:10,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:10,520 INFO L93 Difference]: Finished difference Result 792 states and 1069 transitions. [2022-01-10 10:02:10,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:10,520 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 10:02:10,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:10,523 INFO L225 Difference]: With dead ends: 792 [2022-01-10 10:02:10,523 INFO L226 Difference]: Without dead ends: 739 [2022-01-10 10:02:10,524 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 10:02:10,525 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 10:02:10,526 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 10:02:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-01-10 10:02:10,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 686. [2022-01-10 10:02:10,561 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 10:02:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 943 transitions. [2022-01-10 10:02:10,563 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 943 transitions. Word has length 28 [2022-01-10 10:02:10,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:10,563 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 943 transitions. [2022-01-10 10:02:10,564 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 10:02:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 943 transitions. [2022-01-10 10:02:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 10:02:10,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:10,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:10,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 10:02:10,566 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 10:02:10,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:10,567 INFO L85 PathProgramCache]: Analyzing trace with hash 969274777, now seen corresponding path program 1 times [2022-01-10 10:02:10,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:10,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331905638] [2022-01-10 10:02:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:10,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:10,623 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 10:02:10,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:10,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331905638] [2022-01-10 10:02:10,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331905638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:10,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:10,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:10,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408660583] [2022-01-10 10:02:10,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:10,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:10,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:10,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:10,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:10,626 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 10:02:10,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:10,680 INFO L93 Difference]: Finished difference Result 699 states and 957 transitions. [2022-01-10 10:02:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:10,681 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 10:02:10,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:10,685 INFO L225 Difference]: With dead ends: 699 [2022-01-10 10:02:10,685 INFO L226 Difference]: Without dead ends: 684 [2022-01-10 10:02:10,686 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 10:02:10,686 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 10:02:10,687 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 10:02:10,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-01-10 10:02:10,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2022-01-10 10:02:10,721 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 10:02:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 940 transitions. [2022-01-10 10:02:10,723 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 940 transitions. Word has length 28 [2022-01-10 10:02:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:10,723 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 940 transitions. [2022-01-10 10:02:10,723 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 10:02:10,723 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 940 transitions. [2022-01-10 10:02:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 10:02:10,725 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:10,725 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 10:02:10,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 10:02:10,725 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 10:02:10,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1648243224, now seen corresponding path program 1 times [2022-01-10 10:02:10,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:10,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219059633] [2022-01-10 10:02:10,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:10,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:02:10,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:10,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219059633] [2022-01-10 10:02:10,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219059633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:10,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:10,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:10,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956797786] [2022-01-10 10:02:10,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:10,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:10,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:10,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:10,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:10,784 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 10:02:10,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:10,830 INFO L93 Difference]: Finished difference Result 726 states and 990 transitions. [2022-01-10 10:02:10,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:10,830 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 10:02:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:10,833 INFO L225 Difference]: With dead ends: 726 [2022-01-10 10:02:10,833 INFO L226 Difference]: Without dead ends: 661 [2022-01-10 10:02:10,834 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 10:02:10,835 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 10:02:10,835 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 10:02:10,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-01-10 10:02:10,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 657. [2022-01-10 10:02:10,863 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 10:02:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 901 transitions. [2022-01-10 10:02:10,865 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 901 transitions. Word has length 29 [2022-01-10 10:02:10,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:10,865 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 901 transitions. [2022-01-10 10:02:10,865 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 10:02:10,865 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 901 transitions. [2022-01-10 10:02:10,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-10 10:02:10,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:10,866 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 10:02:10,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 10:02:10,866 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 10:02:10,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:10,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1613577908, now seen corresponding path program 1 times [2022-01-10 10:02:10,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:10,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312933384] [2022-01-10 10:02:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:10,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:10,914 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 10:02:10,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:10,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312933384] [2022-01-10 10:02:10,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312933384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:10,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:10,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:10,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605744769] [2022-01-10 10:02:10,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:10,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:10,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:10,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:10,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:10,916 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 10:02:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:11,005 INFO L93 Difference]: Finished difference Result 696 states and 943 transitions. [2022-01-10 10:02:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:11,005 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 10:02:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:11,008 INFO L225 Difference]: With dead ends: 696 [2022-01-10 10:02:11,009 INFO L226 Difference]: Without dead ends: 675 [2022-01-10 10:02:11,009 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 10:02:11,010 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:11,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 1824 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 10:02:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-01-10 10:02:11,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 659. [2022-01-10 10:02:11,047 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 10:02:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 903 transitions. [2022-01-10 10:02:11,049 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 903 transitions. Word has length 29 [2022-01-10 10:02:11,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:11,049 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 903 transitions. [2022-01-10 10:02:11,049 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 10:02:11,049 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 903 transitions. [2022-01-10 10:02:11,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 10:02:11,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:11,050 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] [2022-01-10 10:02:11,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 10:02:11,050 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 10:02:11,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash -515082759, now seen corresponding path program 1 times [2022-01-10 10:02:11,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:11,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074381559] [2022-01-10 10:02:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:11,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:11,103 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 10:02:11,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:11,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074381559] [2022-01-10 10:02:11,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074381559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:11,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:11,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:11,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106065759] [2022-01-10 10:02:11,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:11,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:11,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:11,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:11,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:11,105 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 10:02:11,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:11,167 INFO L93 Difference]: Finished difference Result 698 states and 945 transitions. [2022-01-10 10:02:11,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:11,168 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 10:02:11,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:11,170 INFO L225 Difference]: With dead ends: 698 [2022-01-10 10:02:11,170 INFO L226 Difference]: Without dead ends: 677 [2022-01-10 10:02:11,171 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 10:02:11,171 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 10:02:11,171 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 10:02:11,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-01-10 10:02:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 659. [2022-01-10 10:02:11,200 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 10:02:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 903 transitions. [2022-01-10 10:02:11,201 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 903 transitions. Word has length 30 [2022-01-10 10:02:11,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:11,202 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 903 transitions. [2022-01-10 10:02:11,202 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 10:02:11,202 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 903 transitions. [2022-01-10 10:02:11,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 10:02:11,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:11,219 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 10:02:11,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 10:02:11,219 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 10:02:11,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:11,219 INFO L85 PathProgramCache]: Analyzing trace with hash -808485766, now seen corresponding path program 1 times [2022-01-10 10:02:11,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:11,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463020865] [2022-01-10 10:02:11,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:11,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:11,343 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 10:02:11,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:11,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463020865] [2022-01-10 10:02:11,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463020865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:11,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:11,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:11,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58442873] [2022-01-10 10:02:11,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:11,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:11,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:11,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:11,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:11,345 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 10:02:11,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:11,458 INFO L93 Difference]: Finished difference Result 698 states and 945 transitions. [2022-01-10 10:02:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:11,459 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 10:02:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:11,461 INFO L225 Difference]: With dead ends: 698 [2022-01-10 10:02:11,461 INFO L226 Difference]: Without dead ends: 677 [2022-01-10 10:02:11,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:11,464 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:11,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 1802 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 10:02:11,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-01-10 10:02:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 659. [2022-01-10 10:02:11,496 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 10:02:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 903 transitions. [2022-01-10 10:02:11,498 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 903 transitions. Word has length 30 [2022-01-10 10:02:11,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:11,498 INFO L470 AbstractCegarLoop]: Abstraction has 659 states and 903 transitions. [2022-01-10 10:02:11,498 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 10:02:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 903 transitions. [2022-01-10 10:02:11,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 10:02:11,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:11,500 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 10:02:11,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 10:02:11,500 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 10:02:11,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:11,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1069540992, now seen corresponding path program 1 times [2022-01-10 10:02:11,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:11,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566786104] [2022-01-10 10:02:11,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:11,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:11,555 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 10:02:11,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:11,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566786104] [2022-01-10 10:02:11,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566786104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:11,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:11,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:11,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106830578] [2022-01-10 10:02:11,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:11,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:11,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:11,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:11,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:11,557 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 10:02:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:11,831 INFO L93 Difference]: Finished difference Result 942 states and 1258 transitions. [2022-01-10 10:02:11,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:11,832 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 10:02:11,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:11,834 INFO L225 Difference]: With dead ends: 942 [2022-01-10 10:02:11,834 INFO L226 Difference]: Without dead ends: 693 [2022-01-10 10:02:11,835 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 10:02:11,835 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 984 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 10:02:11,836 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 10:02:11,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-01-10 10:02:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 642. [2022-01-10 10:02:11,873 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 10:02:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 867 transitions. [2022-01-10 10:02:11,875 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 867 transitions. Word has length 31 [2022-01-10 10:02:11,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:11,875 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 867 transitions. [2022-01-10 10:02:11,875 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 10:02:11,875 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 867 transitions. [2022-01-10 10:02:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 10:02:11,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:11,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:11,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 10:02:11,876 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 10:02:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:11,877 INFO L85 PathProgramCache]: Analyzing trace with hash 936407150, now seen corresponding path program 1 times [2022-01-10 10:02:11,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:11,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868537274] [2022-01-10 10:02:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:11,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:11,921 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 10:02:11,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:11,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868537274] [2022-01-10 10:02:11,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868537274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:11,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:11,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:11,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611042663] [2022-01-10 10:02:11,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:11,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:11,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:11,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:11,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:11,922 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 10:02:12,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:12,110 INFO L93 Difference]: Finished difference Result 647 states and 871 transitions. [2022-01-10 10:02:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:12,110 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 10:02:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:12,113 INFO L225 Difference]: With dead ends: 647 [2022-01-10 10:02:12,113 INFO L226 Difference]: Without dead ends: 642 [2022-01-10 10:02:12,113 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 10:02:12,114 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 10:02:12,114 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 10:02:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-01-10 10:02:12,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2022-01-10 10:02:12,161 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 10:02:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 866 transitions. [2022-01-10 10:02:12,163 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 866 transitions. Word has length 32 [2022-01-10 10:02:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:12,163 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 866 transitions. [2022-01-10 10:02:12,163 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 10:02:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 866 transitions. [2022-01-10 10:02:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 10:02:12,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:12,164 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 10:02:12,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 10:02:12,164 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 10:02:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1066933234, now seen corresponding path program 1 times [2022-01-10 10:02:12,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:12,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345022832] [2022-01-10 10:02:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:12,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:02:12,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:12,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345022832] [2022-01-10 10:02:12,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345022832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:12,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:12,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:12,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931170600] [2022-01-10 10:02:12,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:12,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:12,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:12,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:12,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:12,232 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 10:02:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:12,439 INFO L93 Difference]: Finished difference Result 647 states and 870 transitions. [2022-01-10 10:02:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:12,440 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 10:02:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:12,442 INFO L225 Difference]: With dead ends: 647 [2022-01-10 10:02:12,442 INFO L226 Difference]: Without dead ends: 642 [2022-01-10 10:02:12,443 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 10:02:12,443 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 10:02:12,443 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 10:02:12,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-01-10 10:02:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2022-01-10 10:02:12,500 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 10:02:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 865 transitions. [2022-01-10 10:02:12,502 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 865 transitions. Word has length 33 [2022-01-10 10:02:12,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:12,502 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 865 transitions. [2022-01-10 10:02:12,502 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 10:02:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 865 transitions. [2022-01-10 10:02:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 10:02:12,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:12,503 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 10:02:12,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 10:02:12,503 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 10:02:12,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:12,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1329434303, now seen corresponding path program 1 times [2022-01-10 10:02:12,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:12,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76145410] [2022-01-10 10:02:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:12,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:12,543 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 10:02:12,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:12,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76145410] [2022-01-10 10:02:12,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76145410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:12,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:12,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:12,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495279519] [2022-01-10 10:02:12,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:12,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:12,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:12,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:12,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:12,548 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 10:02:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:12,764 INFO L93 Difference]: Finished difference Result 821 states and 1090 transitions. [2022-01-10 10:02:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:12,765 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 10:02:12,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:12,768 INFO L225 Difference]: With dead ends: 821 [2022-01-10 10:02:12,768 INFO L226 Difference]: Without dead ends: 798 [2022-01-10 10:02:12,768 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 10:02:12,769 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 10:02:12,769 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 10:02:12,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-01-10 10:02:12,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 680. [2022-01-10 10:02:12,824 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 10:02:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 908 transitions. [2022-01-10 10:02:12,826 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 908 transitions. Word has length 33 [2022-01-10 10:02:12,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:12,826 INFO L470 AbstractCegarLoop]: Abstraction has 680 states and 908 transitions. [2022-01-10 10:02:12,826 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 10:02:12,827 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 908 transitions. [2022-01-10 10:02:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 10:02:12,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:12,828 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 10:02:12,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 10:02:12,828 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 10:02:12,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:12,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1262335991, now seen corresponding path program 1 times [2022-01-10 10:02:12,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:12,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993351944] [2022-01-10 10:02:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:12,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:12,880 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 10:02:12,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:12,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993351944] [2022-01-10 10:02:12,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993351944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:12,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:12,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 10:02:12,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212297442] [2022-01-10 10:02:12,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:12,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 10:02:12,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:12,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 10:02:12,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 10:02:12,882 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 10:02:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:12,996 INFO L93 Difference]: Finished difference Result 693 states and 920 transitions. [2022-01-10 10:02:12,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 10:02:12,997 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 10:02:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:12,999 INFO L225 Difference]: With dead ends: 693 [2022-01-10 10:02:12,999 INFO L226 Difference]: Without dead ends: 672 [2022-01-10 10:02:13,000 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 10:02:13,001 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 10:02:13,001 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 10:02:13,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-01-10 10:02:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2022-01-10 10:02:13,058 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 10:02:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 897 transitions. [2022-01-10 10:02:13,060 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 897 transitions. Word has length 34 [2022-01-10 10:02:13,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:13,060 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 897 transitions. [2022-01-10 10:02:13,061 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 10:02:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 897 transitions. [2022-01-10 10:02:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 10:02:13,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:13,062 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 10:02:13,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 10:02:13,062 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 10:02:13,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:13,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1736190510, now seen corresponding path program 1 times [2022-01-10 10:02:13,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:13,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971916683] [2022-01-10 10:02:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:13,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:13,118 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 10:02:13,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:13,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971916683] [2022-01-10 10:02:13,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971916683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:13,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:13,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:13,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711881062] [2022-01-10 10:02:13,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:13,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:13,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:13,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:13,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:13,120 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 10:02:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:13,371 INFO L93 Difference]: Finished difference Result 798 states and 1061 transitions. [2022-01-10 10:02:13,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:13,371 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 10:02:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:13,374 INFO L225 Difference]: With dead ends: 798 [2022-01-10 10:02:13,375 INFO L226 Difference]: Without dead ends: 790 [2022-01-10 10:02:13,375 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 10:02:13,376 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:13,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 1041 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:13,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-01-10 10:02:13,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 672. [2022-01-10 10:02:13,435 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 10:02:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 896 transitions. [2022-01-10 10:02:13,437 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 896 transitions. Word has length 34 [2022-01-10 10:02:13,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:13,437 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 896 transitions. [2022-01-10 10:02:13,437 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 10:02:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 896 transitions. [2022-01-10 10:02:13,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 10:02:13,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:13,439 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 10:02:13,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 10:02:13,439 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 10:02:13,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:13,439 INFO L85 PathProgramCache]: Analyzing trace with hash -269981295, now seen corresponding path program 1 times [2022-01-10 10:02:13,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:13,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447516276] [2022-01-10 10:02:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:13,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:13,487 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 10:02:13,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:13,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447516276] [2022-01-10 10:02:13,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447516276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:13,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:13,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:13,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602574939] [2022-01-10 10:02:13,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:13,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:13,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:13,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:13,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:13,489 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 10:02:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:13,604 INFO L93 Difference]: Finished difference Result 690 states and 913 transitions. [2022-01-10 10:02:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:02:13,605 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 10:02:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:13,624 INFO L225 Difference]: With dead ends: 690 [2022-01-10 10:02:13,624 INFO L226 Difference]: Without dead ends: 672 [2022-01-10 10:02:13,625 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 10:02:13,625 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 10:02:13,625 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 10:02:13,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-01-10 10:02:13,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2022-01-10 10:02:13,680 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 10:02:13,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 886 transitions. [2022-01-10 10:02:13,682 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 886 transitions. Word has length 34 [2022-01-10 10:02:13,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:13,682 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 886 transitions. [2022-01-10 10:02:13,682 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 10:02:13,682 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 886 transitions. [2022-01-10 10:02:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 10:02:13,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:13,683 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 10:02:13,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 10:02:13,683 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 10:02:13,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:13,684 INFO L85 PathProgramCache]: Analyzing trace with hash 953353763, now seen corresponding path program 1 times [2022-01-10 10:02:13,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:13,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545865168] [2022-01-10 10:02:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:13,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:13,725 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 10:02:13,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:13,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545865168] [2022-01-10 10:02:13,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545865168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:13,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:13,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:13,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209811747] [2022-01-10 10:02:13,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:13,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:13,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:13,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:13,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:13,727 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 10:02:13,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:13,921 INFO L93 Difference]: Finished difference Result 882 states and 1164 transitions. [2022-01-10 10:02:13,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:13,922 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 10:02:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:13,924 INFO L225 Difference]: With dead ends: 882 [2022-01-10 10:02:13,924 INFO L226 Difference]: Without dead ends: 674 [2022-01-10 10:02:13,925 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 10:02:13,926 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 10:02:13,926 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 10:02:13,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-01-10 10:02:13,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2022-01-10 10:02:13,982 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 10:02:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 889 transitions. [2022-01-10 10:02:13,984 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 889 transitions. Word has length 34 [2022-01-10 10:02:13,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:13,984 INFO L470 AbstractCegarLoop]: Abstraction has 674 states and 889 transitions. [2022-01-10 10:02:13,985 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 10:02:13,985 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 889 transitions. [2022-01-10 10:02:13,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 10:02:13,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:13,986 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 10:02:13,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 10:02:13,986 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 10:02:13,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1011453187, now seen corresponding path program 1 times [2022-01-10 10:02:13,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:13,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609344788] [2022-01-10 10:02:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:13,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:14,032 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 10:02:14,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:14,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609344788] [2022-01-10 10:02:14,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609344788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:14,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:14,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:14,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186564217] [2022-01-10 10:02:14,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:14,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:14,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:14,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:14,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:14,036 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 10:02:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:14,117 INFO L93 Difference]: Finished difference Result 855 states and 1120 transitions. [2022-01-10 10:02:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:14,118 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 10:02:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:14,120 INFO L225 Difference]: With dead ends: 855 [2022-01-10 10:02:14,120 INFO L226 Difference]: Without dead ends: 650 [2022-01-10 10:02:14,121 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 10:02:14,122 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 10:02:14,122 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 10:02:14,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-01-10 10:02:14,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 634. [2022-01-10 10:02:14,200 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 10:02:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 831 transitions. [2022-01-10 10:02:14,202 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 831 transitions. Word has length 34 [2022-01-10 10:02:14,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:14,203 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 831 transitions. [2022-01-10 10:02:14,203 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 10:02:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 831 transitions. [2022-01-10 10:02:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:14,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:14,204 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 10:02:14,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 10:02:14,204 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 10:02:14,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:14,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1981885226, now seen corresponding path program 1 times [2022-01-10 10:02:14,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:14,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469689785] [2022-01-10 10:02:14,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:14,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:14,253 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 10:02:14,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:14,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469689785] [2022-01-10 10:02:14,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469689785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:14,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:14,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:14,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321648168] [2022-01-10 10:02:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:14,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:14,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:14,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:14,254 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 10:02:14,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:14,503 INFO L93 Difference]: Finished difference Result 752 states and 987 transitions. [2022-01-10 10:02:14,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:14,504 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 10:02:14,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:14,506 INFO L225 Difference]: With dead ends: 752 [2022-01-10 10:02:14,507 INFO L226 Difference]: Without dead ends: 749 [2022-01-10 10:02:14,507 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 10:02:14,507 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:14,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 1009 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:14,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-01-10 10:02:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 636. [2022-01-10 10:02:14,563 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 10:02:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 833 transitions. [2022-01-10 10:02:14,565 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 833 transitions. Word has length 35 [2022-01-10 10:02:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:14,565 INFO L470 AbstractCegarLoop]: Abstraction has 636 states and 833 transitions. [2022-01-10 10:02:14,565 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 10:02:14,565 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 833 transitions. [2022-01-10 10:02:14,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:14,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:14,566 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 10:02:14,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 10:02:14,566 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 10:02:14,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:14,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1981886251, now seen corresponding path program 1 times [2022-01-10 10:02:14,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:14,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162358637] [2022-01-10 10:02:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:14,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:14,630 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 10:02:14,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:14,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162358637] [2022-01-10 10:02:14,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162358637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:14,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:14,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:14,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826355964] [2022-01-10 10:02:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:14,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:14,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:14,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:14,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:14,633 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 10:02:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:14,846 INFO L93 Difference]: Finished difference Result 641 states and 837 transitions. [2022-01-10 10:02:14,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:14,847 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 10:02:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:14,849 INFO L225 Difference]: With dead ends: 641 [2022-01-10 10:02:14,849 INFO L226 Difference]: Without dead ends: 598 [2022-01-10 10:02:14,849 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 10:02:14,850 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 10:02:14,851 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 10:02:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-01-10 10:02:14,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2022-01-10 10:02:14,902 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 10:02:14,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 782 transitions. [2022-01-10 10:02:14,903 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 782 transitions. Word has length 35 [2022-01-10 10:02:14,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:14,903 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 782 transitions. [2022-01-10 10:02:14,904 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 10:02:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 782 transitions. [2022-01-10 10:02:14,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:14,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:14,905 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 10:02:14,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 10:02:14,905 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 10:02:14,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:14,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1837736447, now seen corresponding path program 1 times [2022-01-10 10:02:14,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:14,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794280635] [2022-01-10 10:02:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:14,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:14,938 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 10:02:14,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:14,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794280635] [2022-01-10 10:02:14,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794280635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:14,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:14,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:14,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609775425] [2022-01-10 10:02:14,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:14,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:14,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:14,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:14,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:14,940 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 10:02:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:15,162 INFO L93 Difference]: Finished difference Result 1169 states and 1516 transitions. [2022-01-10 10:02:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:15,162 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 10:02:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:15,165 INFO L225 Difference]: With dead ends: 1169 [2022-01-10 10:02:15,166 INFO L226 Difference]: Without dead ends: 895 [2022-01-10 10:02:15,167 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 10:02:15,168 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 10:02:15,168 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 10:02:15,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-01-10 10:02:15,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 635. [2022-01-10 10:02:15,226 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 10:02:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 832 transitions. [2022-01-10 10:02:15,227 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 832 transitions. Word has length 35 [2022-01-10 10:02:15,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:15,227 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 832 transitions. [2022-01-10 10:02:15,228 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 10:02:15,228 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 832 transitions. [2022-01-10 10:02:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:15,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:15,229 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 10:02:15,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 10:02:15,229 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 10:02:15,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:15,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1708653728, now seen corresponding path program 1 times [2022-01-10 10:02:15,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:15,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997584840] [2022-01-10 10:02:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:15,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:15,290 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 10:02:15,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:15,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997584840] [2022-01-10 10:02:15,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997584840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:15,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:15,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:15,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871552985] [2022-01-10 10:02:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:15,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:15,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:15,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:15,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:15,292 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 10:02:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:15,472 INFO L93 Difference]: Finished difference Result 703 states and 907 transitions. [2022-01-10 10:02:15,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:15,472 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 10:02:15,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:15,474 INFO L225 Difference]: With dead ends: 703 [2022-01-10 10:02:15,474 INFO L226 Difference]: Without dead ends: 618 [2022-01-10 10:02:15,475 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 10:02:15,476 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 10:02:15,476 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 10:02:15,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-01-10 10:02:15,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 600. [2022-01-10 10:02:15,534 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 10:02:15,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 772 transitions. [2022-01-10 10:02:15,536 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 772 transitions. Word has length 35 [2022-01-10 10:02:15,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:15,536 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 772 transitions. [2022-01-10 10:02:15,536 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 10:02:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 772 transitions. [2022-01-10 10:02:15,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:15,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:15,537 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 10:02:15,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 10:02:15,538 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 10:02:15,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:15,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1872974016, now seen corresponding path program 1 times [2022-01-10 10:02:15,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:15,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508992439] [2022-01-10 10:02:15,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:15,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:15,579 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 10:02:15,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:15,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508992439] [2022-01-10 10:02:15,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508992439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:15,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:15,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:15,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254197087] [2022-01-10 10:02:15,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:15,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:15,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:15,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:15,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:15,581 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 10:02:15,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:15,774 INFO L93 Difference]: Finished difference Result 675 states and 864 transitions. [2022-01-10 10:02:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:15,774 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 10:02:15,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:15,776 INFO L225 Difference]: With dead ends: 675 [2022-01-10 10:02:15,776 INFO L226 Difference]: Without dead ends: 620 [2022-01-10 10:02:15,777 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 10:02:15,778 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 10:02:15,778 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 10:02:15,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-01-10 10:02:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 565. [2022-01-10 10:02:15,849 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 10:02:15,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 729 transitions. [2022-01-10 10:02:15,851 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 729 transitions. Word has length 35 [2022-01-10 10:02:15,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:15,851 INFO L470 AbstractCegarLoop]: Abstraction has 565 states and 729 transitions. [2022-01-10 10:02:15,851 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 10:02:15,852 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 729 transitions. [2022-01-10 10:02:15,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:15,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:15,852 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 10:02:15,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 10:02:15,853 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 10:02:15,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1703807636, now seen corresponding path program 1 times [2022-01-10 10:02:15,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:15,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172066922] [2022-01-10 10:02:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:15,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:02:15,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:15,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172066922] [2022-01-10 10:02:15,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172066922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:15,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:15,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:15,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114524521] [2022-01-10 10:02:15,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:15,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:15,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:15,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:15,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:15,904 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 10:02:16,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:16,004 INFO L93 Difference]: Finished difference Result 583 states and 746 transitions. [2022-01-10 10:02:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:02:16,005 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 10:02:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:16,007 INFO L225 Difference]: With dead ends: 583 [2022-01-10 10:02:16,007 INFO L226 Difference]: Without dead ends: 565 [2022-01-10 10:02:16,007 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 10:02:16,008 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 10:02:16,008 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 10:02:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-01-10 10:02:16,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2022-01-10 10:02:16,100 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 10:02:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 726 transitions. [2022-01-10 10:02:16,101 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 726 transitions. Word has length 35 [2022-01-10 10:02:16,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:16,101 INFO L470 AbstractCegarLoop]: Abstraction has 565 states and 726 transitions. [2022-01-10 10:02:16,102 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 10:02:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 726 transitions. [2022-01-10 10:02:16,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:16,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:16,103 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 10:02:16,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 10:02:16,103 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 10:02:16,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:16,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1594087307, now seen corresponding path program 1 times [2022-01-10 10:02:16,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:16,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047326964] [2022-01-10 10:02:16,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:16,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:16,159 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 10:02:16,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:16,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047326964] [2022-01-10 10:02:16,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047326964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:16,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:16,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:16,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059237214] [2022-01-10 10:02:16,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:16,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:16,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:16,161 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 10:02:16,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:16,268 INFO L93 Difference]: Finished difference Result 581 states and 741 transitions. [2022-01-10 10:02:16,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:02:16,269 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 10:02:16,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:16,271 INFO L225 Difference]: With dead ends: 581 [2022-01-10 10:02:16,271 INFO L226 Difference]: Without dead ends: 555 [2022-01-10 10:02:16,271 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 10:02:16,271 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 10:02:16,272 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 10:02:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-01-10 10:02:16,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2022-01-10 10:02:16,332 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 10:02:16,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 712 transitions. [2022-01-10 10:02:16,333 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 712 transitions. Word has length 35 [2022-01-10 10:02:16,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:16,333 INFO L470 AbstractCegarLoop]: Abstraction has 555 states and 712 transitions. [2022-01-10 10:02:16,333 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 10:02:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 712 transitions. [2022-01-10 10:02:16,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 10:02:16,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:16,334 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 10:02:16,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 10:02:16,334 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 10:02:16,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:16,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1491787111, now seen corresponding path program 1 times [2022-01-10 10:02:16,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:16,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981547554] [2022-01-10 10:02:16,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:16,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:16,391 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 10:02:16,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:16,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981547554] [2022-01-10 10:02:16,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981547554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:16,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:16,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:16,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814872337] [2022-01-10 10:02:16,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:16,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:16,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:16,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:16,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:16,393 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 10:02:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:16,499 INFO L93 Difference]: Finished difference Result 615 states and 773 transitions. [2022-01-10 10:02:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:02:16,500 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 10:02:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:16,502 INFO L225 Difference]: With dead ends: 615 [2022-01-10 10:02:16,502 INFO L226 Difference]: Without dead ends: 592 [2022-01-10 10:02:16,503 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 10:02:16,504 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 10:02:16,504 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 10:02:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-01-10 10:02:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 558. [2022-01-10 10:02:16,566 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 10:02:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 715 transitions. [2022-01-10 10:02:16,568 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 715 transitions. Word has length 35 [2022-01-10 10:02:16,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:16,568 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 715 transitions. [2022-01-10 10:02:16,568 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 10:02:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 715 transitions. [2022-01-10 10:02:16,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 10:02:16,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:16,569 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 10:02:16,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 10:02:16,569 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 10:02:16,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:16,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2068366705, now seen corresponding path program 1 times [2022-01-10 10:02:16,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:16,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466692537] [2022-01-10 10:02:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:16,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:16,615 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 10:02:16,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:16,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466692537] [2022-01-10 10:02:16,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466692537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:16,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:16,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:16,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715922334] [2022-01-10 10:02:16,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:16,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:16,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:16,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:16,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:16,616 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 10:02:16,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:16,795 INFO L93 Difference]: Finished difference Result 613 states and 787 transitions. [2022-01-10 10:02:16,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:16,795 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 10:02:16,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:16,798 INFO L225 Difference]: With dead ends: 613 [2022-01-10 10:02:16,798 INFO L226 Difference]: Without dead ends: 610 [2022-01-10 10:02:16,798 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 10:02:16,798 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 10:02:16,799 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 10:02:16,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-01-10 10:02:16,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 556. [2022-01-10 10:02:16,856 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 10:02:16,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 712 transitions. [2022-01-10 10:02:16,857 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 712 transitions. Word has length 36 [2022-01-10 10:02:16,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:16,857 INFO L470 AbstractCegarLoop]: Abstraction has 556 states and 712 transitions. [2022-01-10 10:02:16,857 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 10:02:16,857 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 712 transitions. [2022-01-10 10:02:16,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 10:02:16,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:16,858 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] [2022-01-10 10:02:16,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 10:02:16,858 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 10:02:16,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:16,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2068367730, now seen corresponding path program 1 times [2022-01-10 10:02:16,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:16,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699595411] [2022-01-10 10:02:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:16,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:16,957 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 10:02:16,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:16,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699595411] [2022-01-10 10:02:16,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699595411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:16,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:16,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:16,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662839725] [2022-01-10 10:02:16,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:16,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:16,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:16,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:16,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:16,958 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 10:02:17,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:17,340 INFO L93 Difference]: Finished difference Result 820 states and 1036 transitions. [2022-01-10 10:02:17,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:17,341 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 10:02:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:17,344 INFO L225 Difference]: With dead ends: 820 [2022-01-10 10:02:17,344 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 10:02:17,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-10 10:02:17,344 INFO L933 BasicCegarLoop]: 493 mSDtfsCounter, 374 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 10:02:17,345 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 10:02:17,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 10:02:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 554. [2022-01-10 10:02:17,400 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 10:02:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 708 transitions. [2022-01-10 10:02:17,402 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 708 transitions. Word has length 36 [2022-01-10 10:02:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:17,402 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 708 transitions. [2022-01-10 10:02:17,402 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 10:02:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 708 transitions. [2022-01-10 10:02:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 10:02:17,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:17,403 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 10:02:17,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 10:02:17,403 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 10:02:17,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:17,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1496610181, now seen corresponding path program 1 times [2022-01-10 10:02:17,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:17,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953810419] [2022-01-10 10:02:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:17,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:17,473 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 10:02:17,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:17,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953810419] [2022-01-10 10:02:17,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953810419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:17,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:17,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 10:02:17,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835794831] [2022-01-10 10:02:17,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:17,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 10:02:17,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:17,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 10:02:17,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 10:02:17,475 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 10:02:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:17,740 INFO L93 Difference]: Finished difference Result 585 states and 737 transitions. [2022-01-10 10:02:17,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:02:17,741 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 10:02:17,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:17,743 INFO L225 Difference]: With dead ends: 585 [2022-01-10 10:02:17,743 INFO L226 Difference]: Without dead ends: 544 [2022-01-10 10:02:17,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 10:02:17,743 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:17,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2105 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:17,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-01-10 10:02:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 523. [2022-01-10 10:02:17,799 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 10:02:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 671 transitions. [2022-01-10 10:02:17,802 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 671 transitions. Word has length 37 [2022-01-10 10:02:17,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:17,802 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 671 transitions. [2022-01-10 10:02:17,802 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 10:02:17,802 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 671 transitions. [2022-01-10 10:02:17,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 10:02:17,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:17,805 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 10:02:17,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 10:02:17,805 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 10:02:17,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1765651113, now seen corresponding path program 1 times [2022-01-10 10:02:17,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:17,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093645394] [2022-01-10 10:02:17,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:17,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:17,862 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 10:02:17,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:17,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093645394] [2022-01-10 10:02:17,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093645394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:17,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:17,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:17,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364343071] [2022-01-10 10:02:17,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:17,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:17,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:17,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:17,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:17,864 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 10:02:17,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:17,985 INFO L93 Difference]: Finished difference Result 786 states and 1009 transitions. [2022-01-10 10:02:17,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:17,986 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 10:02:17,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:17,988 INFO L225 Difference]: With dead ends: 786 [2022-01-10 10:02:17,988 INFO L226 Difference]: Without dead ends: 585 [2022-01-10 10:02:17,989 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 10:02:17,989 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 10:02:17,989 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 10:02:17,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-01-10 10:02:18,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 511. [2022-01-10 10:02:18,058 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 10:02:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 653 transitions. [2022-01-10 10:02:18,059 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 653 transitions. Word has length 37 [2022-01-10 10:02:18,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:18,059 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 653 transitions. [2022-01-10 10:02:18,060 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 10:02:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 653 transitions. [2022-01-10 10:02:18,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 10:02:18,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:18,061 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 10:02:18,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 10:02:18,061 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 10:02:18,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:18,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1493220792, now seen corresponding path program 1 times [2022-01-10 10:02:18,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:18,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142364191] [2022-01-10 10:02:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:18,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:18,144 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 10:02:18,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:18,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142364191] [2022-01-10 10:02:18,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142364191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:18,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:18,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:18,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181313903] [2022-01-10 10:02:18,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:18,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:18,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:18,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:18,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:18,147 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 10:02:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:18,242 INFO L93 Difference]: Finished difference Result 710 states and 906 transitions. [2022-01-10 10:02:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:18,242 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 10:02:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:18,244 INFO L225 Difference]: With dead ends: 710 [2022-01-10 10:02:18,244 INFO L226 Difference]: Without dead ends: 493 [2022-01-10 10:02:18,245 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 10:02:18,245 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 10:02:18,246 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 10:02:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-01-10 10:02:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 477. [2022-01-10 10:02:18,300 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 10:02:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 603 transitions. [2022-01-10 10:02:18,301 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 603 transitions. Word has length 39 [2022-01-10 10:02:18,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:18,301 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 603 transitions. [2022-01-10 10:02:18,301 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 10:02:18,301 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 603 transitions. [2022-01-10 10:02:18,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 10:02:18,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:18,302 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 10:02:18,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 10:02:18,302 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 10:02:18,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1002689332, now seen corresponding path program 1 times [2022-01-10 10:02:18,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:18,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358786248] [2022-01-10 10:02:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:18,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:18,351 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 10:02:18,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:18,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358786248] [2022-01-10 10:02:18,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358786248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:18,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:18,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 10:02:18,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836307497] [2022-01-10 10:02:18,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:18,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 10:02:18,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:18,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 10:02:18,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 10:02:18,353 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 10:02:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:18,471 INFO L93 Difference]: Finished difference Result 511 states and 636 transitions. [2022-01-10 10:02:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 10:02:18,471 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 10:02:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:18,473 INFO L225 Difference]: With dead ends: 511 [2022-01-10 10:02:18,473 INFO L226 Difference]: Without dead ends: 492 [2022-01-10 10:02:18,474 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 10:02:18,474 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 10:02:18,474 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 10:02:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-01-10 10:02:18,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-01-10 10:02:18,542 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 10:02:18,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 599 transitions. [2022-01-10 10:02:18,543 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 599 transitions. Word has length 40 [2022-01-10 10:02:18,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:18,543 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 599 transitions. [2022-01-10 10:02:18,544 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 10:02:18,544 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 599 transitions. [2022-01-10 10:02:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 10:02:18,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:18,544 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 10:02:18,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 10:02:18,545 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 10:02:18,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:18,545 INFO L85 PathProgramCache]: Analyzing trace with hash 704122211, now seen corresponding path program 1 times [2022-01-10 10:02:18,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:18,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958734082] [2022-01-10 10:02:18,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:18,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:02:18,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:18,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958734082] [2022-01-10 10:02:18,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958734082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:18,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:18,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:18,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370439300] [2022-01-10 10:02:18,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:18,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:18,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:18,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:18,599 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 10:02:18,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:18,694 INFO L93 Difference]: Finished difference Result 490 states and 615 transitions. [2022-01-10 10:02:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:02:18,694 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 10:02:18,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:18,696 INFO L225 Difference]: With dead ends: 490 [2022-01-10 10:02:18,696 INFO L226 Difference]: Without dead ends: 470 [2022-01-10 10:02:18,696 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 10:02:18,697 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 10:02:18,697 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 10:02:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-01-10 10:02:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2022-01-10 10:02:18,748 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 10:02:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 593 transitions. [2022-01-10 10:02:18,749 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 593 transitions. Word has length 40 [2022-01-10 10:02:18,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:18,749 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 593 transitions. [2022-01-10 10:02:18,749 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 10:02:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 593 transitions. [2022-01-10 10:02:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 10:02:18,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:18,750 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:18,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 10:02:18,750 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 10:02:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1563839091, now seen corresponding path program 1 times [2022-01-10 10:02:18,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:18,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522717153] [2022-01-10 10:02:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:18,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 10:02:18,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:18,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522717153] [2022-01-10 10:02:18,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522717153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:18,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:18,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:18,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041270680] [2022-01-10 10:02:18,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:18,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:18,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:18,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:18,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:18,822 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 10:02:19,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:19,120 INFO L93 Difference]: Finished difference Result 706 states and 883 transitions. [2022-01-10 10:02:19,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:19,120 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 10:02:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:19,122 INFO L225 Difference]: With dead ends: 706 [2022-01-10 10:02:19,123 INFO L226 Difference]: Without dead ends: 689 [2022-01-10 10:02:19,123 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 10:02:19,123 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 10:02:19,123 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 10:02:19,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-01-10 10:02:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 469. [2022-01-10 10:02:19,172 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 10:02:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 591 transitions. [2022-01-10 10:02:19,173 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 591 transitions. Word has length 41 [2022-01-10 10:02:19,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:19,173 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 591 transitions. [2022-01-10 10:02:19,173 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 10:02:19,173 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 591 transitions. [2022-01-10 10:02:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 10:02:19,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:19,174 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 10:02:19,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 10:02:19,174 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 10:02:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:19,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1022012029, now seen corresponding path program 1 times [2022-01-10 10:02:19,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:19,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082746155] [2022-01-10 10:02:19,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:19,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:19,224 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 10:02:19,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:19,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082746155] [2022-01-10 10:02:19,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082746155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:19,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:19,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:19,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337412070] [2022-01-10 10:02:19,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:19,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:19,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:19,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:19,226 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 10:02:19,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:19,383 INFO L93 Difference]: Finished difference Result 652 states and 826 transitions. [2022-01-10 10:02:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:19,384 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 10:02:19,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:19,385 INFO L225 Difference]: With dead ends: 652 [2022-01-10 10:02:19,386 INFO L226 Difference]: Without dead ends: 469 [2022-01-10 10:02:19,386 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 10:02:19,386 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 10:02:19,387 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 10:02:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-01-10 10:02:19,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-01-10 10:02:19,439 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 10:02:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 585 transitions. [2022-01-10 10:02:19,440 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 585 transitions. Word has length 41 [2022-01-10 10:02:19,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:19,440 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 585 transitions. [2022-01-10 10:02:19,440 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 10:02:19,440 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 585 transitions. [2022-01-10 10:02:19,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 10:02:19,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:19,441 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, 1] [2022-01-10 10:02:19,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 10:02:19,441 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 10:02:19,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:19,442 INFO L85 PathProgramCache]: Analyzing trace with hash 770428510, now seen corresponding path program 1 times [2022-01-10 10:02:19,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:19,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206471819] [2022-01-10 10:02:19,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:19,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:19,513 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 10:02:19,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:19,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206471819] [2022-01-10 10:02:19,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206471819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:19,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:19,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 10:02:19,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512320188] [2022-01-10 10:02:19,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:19,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 10:02:19,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:19,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 10:02:19,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 10:02:19,514 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 10:02:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:19,738 INFO L93 Difference]: Finished difference Result 497 states and 610 transitions. [2022-01-10 10:02:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:02:19,739 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 10:02:19,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:19,740 INFO L225 Difference]: With dead ends: 497 [2022-01-10 10:02:19,740 INFO L226 Difference]: Without dead ends: 473 [2022-01-10 10:02:19,741 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 10:02:19,741 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 10:02:19,741 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 10:02:19,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-01-10 10:02:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 456. [2022-01-10 10:02:19,797 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 10:02:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 570 transitions. [2022-01-10 10:02:19,798 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 570 transitions. Word has length 42 [2022-01-10 10:02:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:19,799 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 570 transitions. [2022-01-10 10:02:19,799 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 10:02:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 570 transitions. [2022-01-10 10:02:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 10:02:19,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:19,800 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 10:02:19,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 10:02:19,800 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 10:02:19,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:19,800 INFO L85 PathProgramCache]: Analyzing trace with hash -415760886, now seen corresponding path program 1 times [2022-01-10 10:02:19,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:19,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052292834] [2022-01-10 10:02:19,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:19,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:19,841 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 10:02:19,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:19,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052292834] [2022-01-10 10:02:19,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052292834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:19,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:19,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:19,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814859475] [2022-01-10 10:02:19,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:19,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:19,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:19,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:19,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:19,842 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 10:02:19,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:19,934 INFO L93 Difference]: Finished difference Result 622 states and 758 transitions. [2022-01-10 10:02:19,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:19,935 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 10:02:19,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:19,936 INFO L225 Difference]: With dead ends: 622 [2022-01-10 10:02:19,936 INFO L226 Difference]: Without dead ends: 548 [2022-01-10 10:02:19,937 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 10:02:19,937 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 10:02:19,937 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 10:02:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-01-10 10:02:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 460. [2022-01-10 10:02:20,000 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 10:02:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 574 transitions. [2022-01-10 10:02:20,001 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 574 transitions. Word has length 44 [2022-01-10 10:02:20,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:20,001 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 574 transitions. [2022-01-10 10:02:20,002 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 10:02:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 574 transitions. [2022-01-10 10:02:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 10:02:20,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:20,003 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 10:02:20,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 10:02:20,003 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 10:02:20,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:20,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2037662186, now seen corresponding path program 1 times [2022-01-10 10:02:20,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:20,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867453181] [2022-01-10 10:02:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:20,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:20,056 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 10:02:20,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:20,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867453181] [2022-01-10 10:02:20,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867453181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:20,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:20,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:20,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100361515] [2022-01-10 10:02:20,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:20,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:20,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:20,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:20,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:20,058 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 10:02:20,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:20,196 INFO L93 Difference]: Finished difference Result 607 states and 737 transitions. [2022-01-10 10:02:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:02:20,196 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 10:02:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:20,198 INFO L225 Difference]: With dead ends: 607 [2022-01-10 10:02:20,198 INFO L226 Difference]: Without dead ends: 519 [2022-01-10 10:02:20,198 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 10:02:20,198 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 10:02:20,198 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 10:02:20,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-10 10:02:20,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 463. [2022-01-10 10:02:20,255 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 10:02:20,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 575 transitions. [2022-01-10 10:02:20,256 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 575 transitions. Word has length 44 [2022-01-10 10:02:20,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:20,256 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 575 transitions. [2022-01-10 10:02:20,256 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 10:02:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 575 transitions. [2022-01-10 10:02:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 10:02:20,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:20,257 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 10:02:20,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 10:02:20,257 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 10:02:20,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:20,257 INFO L85 PathProgramCache]: Analyzing trace with hash 934339620, now seen corresponding path program 1 times [2022-01-10 10:02:20,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:20,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183044590] [2022-01-10 10:02:20,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:20,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:20,293 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 10:02:20,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:20,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183044590] [2022-01-10 10:02:20,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183044590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:20,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:20,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:20,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727858643] [2022-01-10 10:02:20,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:20,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:20,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:20,295 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 10:02:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:20,434 INFO L93 Difference]: Finished difference Result 796 states and 989 transitions. [2022-01-10 10:02:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:20,434 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 10:02:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:20,436 INFO L225 Difference]: With dead ends: 796 [2022-01-10 10:02:20,436 INFO L226 Difference]: Without dead ends: 613 [2022-01-10 10:02:20,437 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 10:02:20,437 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:20,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 981 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 10:02:20,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-01-10 10:02:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 463. [2022-01-10 10:02:20,493 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 10:02:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 575 transitions. [2022-01-10 10:02:20,494 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 575 transitions. Word has length 44 [2022-01-10 10:02:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:20,495 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 575 transitions. [2022-01-10 10:02:20,495 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 10:02:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 575 transitions. [2022-01-10 10:02:20,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 10:02:20,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:20,496 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 10:02:20,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-10 10:02:20,496 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 10:02:20,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:20,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1059125244, now seen corresponding path program 1 times [2022-01-10 10:02:20,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:20,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206471458] [2022-01-10 10:02:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:20,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:20,592 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 10:02:20,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:20,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206471458] [2022-01-10 10:02:20,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206471458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:20,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:20,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:20,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950804249] [2022-01-10 10:02:20,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:20,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:20,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:20,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:20,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:20,594 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 10:02:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:20,851 INFO L93 Difference]: Finished difference Result 744 states and 922 transitions. [2022-01-10 10:02:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:02:20,852 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 10:02:20,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:20,853 INFO L225 Difference]: With dead ends: 744 [2022-01-10 10:02:20,853 INFO L226 Difference]: Without dead ends: 586 [2022-01-10 10:02:20,854 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 10:02:20,854 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 10:02:20,854 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 10:02:20,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-01-10 10:02:20,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 463. [2022-01-10 10:02:20,920 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 10:02:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 571 transitions. [2022-01-10 10:02:20,921 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 571 transitions. Word has length 44 [2022-01-10 10:02:20,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:20,922 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 571 transitions. [2022-01-10 10:02:20,922 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 10:02:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 571 transitions. [2022-01-10 10:02:20,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 10:02:20,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:20,923 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 10:02:20,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-10 10:02:20,923 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 10:02:20,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1722616656, now seen corresponding path program 1 times [2022-01-10 10:02:20,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:20,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602392880] [2022-01-10 10:02:20,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:20,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:20,975 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 10:02:20,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:20,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602392880] [2022-01-10 10:02:20,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602392880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:20,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:20,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:20,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56618546] [2022-01-10 10:02:20,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:20,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:20,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:20,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:20,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:20,976 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 10:02:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:21,093 INFO L93 Difference]: Finished difference Result 992 states and 1207 transitions. [2022-01-10 10:02:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:21,096 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 10:02:21,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:21,098 INFO L225 Difference]: With dead ends: 992 [2022-01-10 10:02:21,098 INFO L226 Difference]: Without dead ends: 570 [2022-01-10 10:02:21,100 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 10:02:21,100 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 10:02:21,101 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 10:02:21,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-01-10 10:02:21,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 509. [2022-01-10 10:02:21,174 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 10:02:21,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 621 transitions. [2022-01-10 10:02:21,175 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 621 transitions. Word has length 46 [2022-01-10 10:02:21,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:21,175 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 621 transitions. [2022-01-10 10:02:21,175 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 10:02:21,176 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 621 transitions. [2022-01-10 10:02:21,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 10:02:21,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:21,177 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 10:02:21,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-10 10:02:21,177 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 10:02:21,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:21,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1851699375, now seen corresponding path program 1 times [2022-01-10 10:02:21,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:21,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458778126] [2022-01-10 10:02:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:21,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:21,283 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 10:02:21,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:21,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458778126] [2022-01-10 10:02:21,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458778126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:21,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:21,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 10:02:21,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146089722] [2022-01-10 10:02:21,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:21,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 10:02:21,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 10:02:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 10:02:21,284 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 10:02:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:21,650 INFO L93 Difference]: Finished difference Result 685 states and 823 transitions. [2022-01-10 10:02:21,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 10:02:21,650 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 10:02:21,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:21,651 INFO L225 Difference]: With dead ends: 685 [2022-01-10 10:02:21,651 INFO L226 Difference]: Without dead ends: 603 [2022-01-10 10:02:21,652 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 10:02:21,652 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:21,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 2445 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:21,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-01-10 10:02:21,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 509. [2022-01-10 10:02:21,725 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 10:02:21,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 615 transitions. [2022-01-10 10:02:21,726 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 615 transitions. Word has length 46 [2022-01-10 10:02:21,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:21,726 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 615 transitions. [2022-01-10 10:02:21,726 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 10:02:21,726 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 615 transitions. [2022-01-10 10:02:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 10:02:21,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:21,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 10:02:21,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-10 10:02:21,728 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 10:02:21,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:21,728 INFO L85 PathProgramCache]: Analyzing trace with hash 437417489, now seen corresponding path program 1 times [2022-01-10 10:02:21,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:21,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752662271] [2022-01-10 10:02:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:21,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:21,805 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 10:02:21,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:21,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752662271] [2022-01-10 10:02:21,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752662271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:21,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:21,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:21,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345092855] [2022-01-10 10:02:21,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:21,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:21,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:21,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:21,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:21,807 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 10:02:22,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:22,075 INFO L93 Difference]: Finished difference Result 953 states and 1165 transitions. [2022-01-10 10:02:22,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:02:22,076 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 10:02:22,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:22,077 INFO L225 Difference]: With dead ends: 953 [2022-01-10 10:02:22,078 INFO L226 Difference]: Without dead ends: 822 [2022-01-10 10:02:22,078 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 10:02:22,078 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 10:02:22,079 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 10:02:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-01-10 10:02:22,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 509. [2022-01-10 10:02:22,154 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 10:02:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 614 transitions. [2022-01-10 10:02:22,155 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 614 transitions. Word has length 47 [2022-01-10 10:02:22,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:22,155 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 614 transitions. [2022-01-10 10:02:22,156 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 10:02:22,156 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 614 transitions. [2022-01-10 10:02:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 10:02:22,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:22,157 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] [2022-01-10 10:02:22,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-10 10:02:22,157 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 10:02:22,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:22,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1210787857, now seen corresponding path program 1 times [2022-01-10 10:02:22,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:22,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406739130] [2022-01-10 10:02:22,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:22,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:22,240 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 10:02:22,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:22,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406739130] [2022-01-10 10:02:22,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406739130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:22,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:22,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:22,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538459182] [2022-01-10 10:02:22,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:22,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:22,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:22,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:22,242 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 10:02:22,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:22,523 INFO L93 Difference]: Finished difference Result 545 states and 647 transitions. [2022-01-10 10:02:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:22,523 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 10:02:22,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:22,524 INFO L225 Difference]: With dead ends: 545 [2022-01-10 10:02:22,524 INFO L226 Difference]: Without dead ends: 370 [2022-01-10 10:02:22,525 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 10:02:22,525 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 10:02:22,525 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 10:02:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-01-10 10:02:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 339. [2022-01-10 10:02:22,577 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 10:02:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 412 transitions. [2022-01-10 10:02:22,578 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 412 transitions. Word has length 47 [2022-01-10 10:02:22,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:22,578 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 412 transitions. [2022-01-10 10:02:22,578 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 10:02:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 412 transitions. [2022-01-10 10:02:22,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 10:02:22,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:22,579 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 10:02:22,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-10 10:02:22,579 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 10:02:22,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:22,580 INFO L85 PathProgramCache]: Analyzing trace with hash -899678092, now seen corresponding path program 1 times [2022-01-10 10:02:22,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:22,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410345920] [2022-01-10 10:02:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:22,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:22,622 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 10:02:22,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:22,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410345920] [2022-01-10 10:02:22,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410345920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:22,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:22,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:22,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45833376] [2022-01-10 10:02:22,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:22,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:22,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:22,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:22,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:22,624 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 10:02:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:22,689 INFO L93 Difference]: Finished difference Result 380 states and 455 transitions. [2022-01-10 10:02:22,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:22,690 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 10:02:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:22,691 INFO L225 Difference]: With dead ends: 380 [2022-01-10 10:02:22,691 INFO L226 Difference]: Without dead ends: 338 [2022-01-10 10:02:22,691 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 10:02:22,693 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 10:02:22,693 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 10:02:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-10 10:02:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-01-10 10:02:22,749 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 10:02:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 410 transitions. [2022-01-10 10:02:22,750 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 410 transitions. Word has length 49 [2022-01-10 10:02:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:22,750 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 410 transitions. [2022-01-10 10:02:22,750 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 10:02:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 410 transitions. [2022-01-10 10:02:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 10:02:22,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:22,752 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 10:02:22,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-10 10:02:22,753 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 10:02:22,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:22,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2141993108, now seen corresponding path program 1 times [2022-01-10 10:02:22,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:22,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485758909] [2022-01-10 10:02:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:22,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:22,815 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 10:02:22,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:22,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485758909] [2022-01-10 10:02:22,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485758909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:22,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:22,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:22,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960990507] [2022-01-10 10:02:22,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:22,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:22,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:22,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:22,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:22,818 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 10:02:22,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:22,924 INFO L93 Difference]: Finished difference Result 359 states and 429 transitions. [2022-01-10 10:02:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:02:22,924 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 10:02:22,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:22,925 INFO L225 Difference]: With dead ends: 359 [2022-01-10 10:02:22,925 INFO L226 Difference]: Without dead ends: 338 [2022-01-10 10:02:22,925 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 10:02:22,927 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 10:02:22,927 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 10:02:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-10 10:02:22,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 319. [2022-01-10 10:02:22,976 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 10:02:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 389 transitions. [2022-01-10 10:02:22,977 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 389 transitions. Word has length 49 [2022-01-10 10:02:22,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:22,977 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 389 transitions. [2022-01-10 10:02:22,977 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 10:02:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 389 transitions. [2022-01-10 10:02:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 10:02:22,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:22,978 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 10:02:22,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-10 10:02:22,978 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 10:02:22,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:22,978 INFO L85 PathProgramCache]: Analyzing trace with hash 95483931, now seen corresponding path program 1 times [2022-01-10 10:02:22,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:22,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304222029] [2022-01-10 10:02:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:22,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:23,044 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 10:02:23,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:23,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304222029] [2022-01-10 10:02:23,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304222029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:23,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:23,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 10:02:23,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783087859] [2022-01-10 10:02:23,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:23,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 10:02:23,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:23,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 10:02:23,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 10:02:23,046 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 10:02:23,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:23,197 INFO L93 Difference]: Finished difference Result 338 states and 407 transitions. [2022-01-10 10:02:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:23,197 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 10:02:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:23,198 INFO L225 Difference]: With dead ends: 338 [2022-01-10 10:02:23,198 INFO L226 Difference]: Without dead ends: 314 [2022-01-10 10:02:23,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 10:02:23,199 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 10:02:23,199 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 10:02:23,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-01-10 10:02:23,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-01-10 10:02:23,251 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 10:02:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 383 transitions. [2022-01-10 10:02:23,252 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 383 transitions. Word has length 49 [2022-01-10 10:02:23,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:23,252 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 383 transitions. [2022-01-10 10:02:23,252 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 10:02:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 383 transitions. [2022-01-10 10:02:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 10:02:23,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:23,253 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 10:02:23,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-10 10:02:23,253 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 10:02:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash -314207091, now seen corresponding path program 1 times [2022-01-10 10:02:23,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:23,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383744093] [2022-01-10 10:02:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:23,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:23,293 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 10:02:23,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:23,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383744093] [2022-01-10 10:02:23,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383744093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:23,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:23,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:23,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249313265] [2022-01-10 10:02:23,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:23,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:23,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:23,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:23,294 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 10:02:23,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:23,383 INFO L93 Difference]: Finished difference Result 449 states and 554 transitions. [2022-01-10 10:02:23,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:23,383 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 10:02:23,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:23,384 INFO L225 Difference]: With dead ends: 449 [2022-01-10 10:02:23,384 INFO L226 Difference]: Without dead ends: 276 [2022-01-10 10:02:23,384 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 10:02:23,385 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 10:02:23,385 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 10:02:23,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-01-10 10:02:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2022-01-10 10:02:23,428 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 10:02:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 334 transitions. [2022-01-10 10:02:23,428 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 334 transitions. Word has length 51 [2022-01-10 10:02:23,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:23,429 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 334 transitions. [2022-01-10 10:02:23,429 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 10:02:23,429 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 334 transitions. [2022-01-10 10:02:23,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 10:02:23,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:23,429 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 10:02:23,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-10 10:02:23,430 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 10:02:23,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:23,430 INFO L85 PathProgramCache]: Analyzing trace with hash 874159025, now seen corresponding path program 1 times [2022-01-10 10:02:23,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:23,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238399619] [2022-01-10 10:02:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:23,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:23,499 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 10:02:23,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:23,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238399619] [2022-01-10 10:02:23,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238399619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:23,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:23,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 10:02:23,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138475690] [2022-01-10 10:02:23,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:23,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 10:02:23,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:23,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 10:02:23,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 10:02:23,501 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 10:02:23,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:23,617 INFO L93 Difference]: Finished difference Result 288 states and 345 transitions. [2022-01-10 10:02:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:23,618 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 10:02:23,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:23,618 INFO L225 Difference]: With dead ends: 288 [2022-01-10 10:02:23,619 INFO L226 Difference]: Without dead ends: 229 [2022-01-10 10:02:23,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 10:02:23,619 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 10:02:23,619 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 10:02:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-01-10 10:02:23,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-01-10 10:02:23,657 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 10:02:23,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 276 transitions. [2022-01-10 10:02:23,657 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 276 transitions. Word has length 54 [2022-01-10 10:02:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:23,657 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 276 transitions. [2022-01-10 10:02:23,657 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 10:02:23,658 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 276 transitions. [2022-01-10 10:02:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 10:02:23,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:23,658 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 10:02:23,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-10 10:02:23,658 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 10:02:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:23,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2060632170, now seen corresponding path program 1 times [2022-01-10 10:02:23,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:23,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221044562] [2022-01-10 10:02:23,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:23,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:23,726 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 10:02:23,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221044562] [2022-01-10 10:02:23,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221044562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:23,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:23,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:23,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410324291] [2022-01-10 10:02:23,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:23,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:23,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:23,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:23,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:23,728 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 10:02:23,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:23,891 INFO L93 Difference]: Finished difference Result 342 states and 410 transitions. [2022-01-10 10:02:23,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 10:02:23,891 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 10:02:23,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:23,892 INFO L225 Difference]: With dead ends: 342 [2022-01-10 10:02:23,892 INFO L226 Difference]: Without dead ends: 323 [2022-01-10 10:02:23,893 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 10:02:23,894 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 292 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 10:02:23,894 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 10:02:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-01-10 10:02:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 223. [2022-01-10 10:02:23,930 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 10:02:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 269 transitions. [2022-01-10 10:02:23,931 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 269 transitions. Word has length 59 [2022-01-10 10:02:23,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:23,931 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 269 transitions. [2022-01-10 10:02:23,931 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 10:02:23,931 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 269 transitions. [2022-01-10 10:02:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 10:02:23,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:23,932 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 10:02:23,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-10 10:02:23,932 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 10:02:23,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1480797736, now seen corresponding path program 1 times [2022-01-10 10:02:23,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:23,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135432632] [2022-01-10 10:02:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:23,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:24,016 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 10:02:24,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:24,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135432632] [2022-01-10 10:02:24,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135432632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:24,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:24,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 10:02:24,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166061812] [2022-01-10 10:02:24,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:24,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 10:02:24,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:24,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 10:02:24,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 10:02:24,018 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 10:02:24,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:24,157 INFO L93 Difference]: Finished difference Result 289 states and 347 transitions. [2022-01-10 10:02:24,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:24,157 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 10:02:24,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:24,158 INFO L225 Difference]: With dead ends: 289 [2022-01-10 10:02:24,158 INFO L226 Difference]: Without dead ends: 223 [2022-01-10 10:02:24,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 10:02:24,159 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 10:02:24,159 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 10:02:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-01-10 10:02:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-01-10 10:02:24,196 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 10:02:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 268 transitions. [2022-01-10 10:02:24,197 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 268 transitions. Word has length 62 [2022-01-10 10:02:24,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:24,197 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 268 transitions. [2022-01-10 10:02:24,197 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 10:02:24,197 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 268 transitions. [2022-01-10 10:02:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 10:02:24,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:24,198 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 10:02:24,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-10 10:02:24,198 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 10:02:24,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:24,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2019794455, now seen corresponding path program 1 times [2022-01-10 10:02:24,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:24,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840398255] [2022-01-10 10:02:24,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:24,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:24,303 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 10:02:24,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:24,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840398255] [2022-01-10 10:02:24,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840398255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:24,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:24,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:24,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307391308] [2022-01-10 10:02:24,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:24,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:24,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:24,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:24,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:24,305 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 10:02:24,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:24,547 INFO L93 Difference]: Finished difference Result 377 states and 442 transitions. [2022-01-10 10:02:24,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:24,547 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 10:02:24,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:24,548 INFO L225 Difference]: With dead ends: 377 [2022-01-10 10:02:24,548 INFO L226 Difference]: Without dead ends: 355 [2022-01-10 10:02:24,550 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 10:02:24,550 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 10:02:24,550 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 10:02:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-01-10 10:02:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 226. [2022-01-10 10:02:24,593 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 10:02:24,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 271 transitions. [2022-01-10 10:02:24,594 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 271 transitions. Word has length 63 [2022-01-10 10:02:24,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:24,594 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 271 transitions. [2022-01-10 10:02:24,594 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 10:02:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 271 transitions. [2022-01-10 10:02:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 10:02:24,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:24,595 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 10:02:24,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-10 10:02:24,595 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 10:02:24,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:24,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1824193868, now seen corresponding path program 1 times [2022-01-10 10:02:24,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:24,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651803536] [2022-01-10 10:02:24,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:24,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:24,638 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 10:02:24,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:24,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651803536] [2022-01-10 10:02:24,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651803536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:24,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:24,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:24,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360759720] [2022-01-10 10:02:24,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:24,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:24,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:24,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:24,640 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 10:02:24,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:24,712 INFO L93 Difference]: Finished difference Result 418 states and 510 transitions. [2022-01-10 10:02:24,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:24,713 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 10:02:24,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:24,713 INFO L225 Difference]: With dead ends: 418 [2022-01-10 10:02:24,713 INFO L226 Difference]: Without dead ends: 280 [2022-01-10 10:02:24,714 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 10:02:24,715 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 10:02:24,715 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 10:02:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-01-10 10:02:24,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 226. [2022-01-10 10:02:24,759 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 10:02:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 269 transitions. [2022-01-10 10:02:24,759 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 269 transitions. Word has length 64 [2022-01-10 10:02:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:24,760 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 269 transitions. [2022-01-10 10:02:24,760 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 10:02:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 269 transitions. [2022-01-10 10:02:24,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 10:02:24,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:24,761 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 10:02:24,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-10 10:02:24,761 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 10:02:24,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash -63405258, now seen corresponding path program 1 times [2022-01-10 10:02:24,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:24,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720342252] [2022-01-10 10:02:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:24,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:24,829 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 10:02:24,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:24,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720342252] [2022-01-10 10:02:24,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720342252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:24,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:24,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 10:02:24,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858673036] [2022-01-10 10:02:24,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:24,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 10:02:24,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:24,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 10:02:24,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 10:02:24,831 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 10:02:24,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:24,967 INFO L93 Difference]: Finished difference Result 401 states and 483 transitions. [2022-01-10 10:02:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:24,968 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 10:02:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:24,969 INFO L225 Difference]: With dead ends: 401 [2022-01-10 10:02:24,969 INFO L226 Difference]: Without dead ends: 333 [2022-01-10 10:02:24,969 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 10:02:24,970 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 10:02:24,970 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 10:02:24,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-01-10 10:02:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 180. [2022-01-10 10:02:25,008 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 10:02:25,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 217 transitions. [2022-01-10 10:02:25,009 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 217 transitions. Word has length 65 [2022-01-10 10:02:25,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:25,009 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 217 transitions. [2022-01-10 10:02:25,009 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 10:02:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 217 transitions. [2022-01-10 10:02:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 10:02:25,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:25,010 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 10:02:25,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-10 10:02:25,010 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 10:02:25,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:25,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1268951914, now seen corresponding path program 1 times [2022-01-10 10:02:25,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:25,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902533183] [2022-01-10 10:02:25,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:25,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:25,074 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 10:02:25,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:25,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902533183] [2022-01-10 10:02:25,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902533183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:25,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:25,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:25,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180730554] [2022-01-10 10:02:25,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:25,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:25,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:25,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:25,075 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 10:02:25,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:25,150 INFO L93 Difference]: Finished difference Result 254 states and 299 transitions. [2022-01-10 10:02:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:25,150 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 10:02:25,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:25,151 INFO L225 Difference]: With dead ends: 254 [2022-01-10 10:02:25,151 INFO L226 Difference]: Without dead ends: 230 [2022-01-10 10:02:25,151 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 10:02:25,152 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 10:02:25,152 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 10:02:25,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-10 10:02:25,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 181. [2022-01-10 10:02:25,191 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 10:02:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 218 transitions. [2022-01-10 10:02:25,191 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 218 transitions. Word has length 68 [2022-01-10 10:02:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:25,192 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 218 transitions. [2022-01-10 10:02:25,192 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 10:02:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 218 transitions. [2022-01-10 10:02:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 10:02:25,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:25,193 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 10:02:25,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-10 10:02:25,193 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 10:02:25,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:25,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1871404256, now seen corresponding path program 1 times [2022-01-10 10:02:25,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:25,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468165180] [2022-01-10 10:02:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:25,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:25,251 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 10:02:25,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:25,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468165180] [2022-01-10 10:02:25,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468165180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:25,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:25,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 10:02:25,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070944351] [2022-01-10 10:02:25,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:25,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 10:02:25,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:25,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 10:02:25,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 10:02:25,253 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 10:02:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:25,326 INFO L93 Difference]: Finished difference Result 242 states and 282 transitions. [2022-01-10 10:02:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 10:02:25,327 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 10:02:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:25,327 INFO L225 Difference]: With dead ends: 242 [2022-01-10 10:02:25,327 INFO L226 Difference]: Without dead ends: 218 [2022-01-10 10:02:25,328 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 10:02:25,328 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 10:02:25,328 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 10:02:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-01-10 10:02:25,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 183. [2022-01-10 10:02:25,362 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 10:02:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 221 transitions. [2022-01-10 10:02:25,362 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 221 transitions. Word has length 73 [2022-01-10 10:02:25,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:25,362 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 221 transitions. [2022-01-10 10:02:25,362 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 10:02:25,362 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 221 transitions. [2022-01-10 10:02:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 10:02:25,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:25,363 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 10:02:25,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-10 10:02:25,363 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 10:02:25,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:25,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1730169619, now seen corresponding path program 1 times [2022-01-10 10:02:25,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:25,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834585234] [2022-01-10 10:02:25,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:25,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:25,428 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 10:02:25,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:25,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834585234] [2022-01-10 10:02:25,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834585234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:25,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:25,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:25,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519578815] [2022-01-10 10:02:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:25,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:25,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:25,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:25,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:25,430 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 10:02:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:25,505 INFO L93 Difference]: Finished difference Result 247 states and 287 transitions. [2022-01-10 10:02:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:25,505 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 10:02:25,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:25,506 INFO L225 Difference]: With dead ends: 247 [2022-01-10 10:02:25,506 INFO L226 Difference]: Without dead ends: 221 [2022-01-10 10:02:25,506 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 10:02:25,507 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 10:02:25,507 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 10:02:25,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-01-10 10:02:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 187. [2022-01-10 10:02:25,542 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 10:02:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2022-01-10 10:02:25,542 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 75 [2022-01-10 10:02:25,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:25,542 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2022-01-10 10:02:25,542 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 10:02:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2022-01-10 10:02:25,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 10:02:25,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:25,543 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 10:02:25,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-10 10:02:25,544 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 10:02:25,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash 65516339, now seen corresponding path program 1 times [2022-01-10 10:02:25,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:25,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823410796] [2022-01-10 10:02:25,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:25,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:25,676 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 10:02:25,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:25,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823410796] [2022-01-10 10:02:25,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823410796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:25,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:25,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 10:02:25,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102279258] [2022-01-10 10:02:25,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:25,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 10:02:25,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:25,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 10:02:25,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 10:02:25,677 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 10:02:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:25,796 INFO L93 Difference]: Finished difference Result 275 states and 328 transitions. [2022-01-10 10:02:25,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 10:02:25,797 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 10:02:25,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:25,797 INFO L225 Difference]: With dead ends: 275 [2022-01-10 10:02:25,798 INFO L226 Difference]: Without dead ends: 219 [2022-01-10 10:02:25,798 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 10:02:25,798 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 10:02:25,798 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 10:02:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-01-10 10:02:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2022-01-10 10:02:25,833 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 10:02:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 173 transitions. [2022-01-10 10:02:25,833 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 173 transitions. Word has length 75 [2022-01-10 10:02:25,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:25,833 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 173 transitions. [2022-01-10 10:02:25,833 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 10:02:25,833 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 173 transitions. [2022-01-10 10:02:25,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 10:02:25,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:25,834 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 10:02:25,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-10 10:02:25,835 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 10:02:25,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:25,835 INFO L85 PathProgramCache]: Analyzing trace with hash -879291225, now seen corresponding path program 1 times [2022-01-10 10:02:25,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:25,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845040094] [2022-01-10 10:02:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:25,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:25,913 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 10:02:25,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:25,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845040094] [2022-01-10 10:02:25,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845040094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:25,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:25,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 10:02:25,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698030137] [2022-01-10 10:02:25,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:25,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 10:02:25,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:25,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 10:02:25,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 10:02:25,915 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 10:02:26,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:26,134 INFO L93 Difference]: Finished difference Result 410 states and 478 transitions. [2022-01-10 10:02:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 10:02:26,135 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 10:02:26,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:26,135 INFO L225 Difference]: With dead ends: 410 [2022-01-10 10:02:26,136 INFO L226 Difference]: Without dead ends: 390 [2022-01-10 10:02:26,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-10 10:02:26,136 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 593 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 10:02:26,136 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 10:02:26,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-01-10 10:02:26,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 158. [2022-01-10 10:02:26,175 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 10:02:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 183 transitions. [2022-01-10 10:02:26,175 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 183 transitions. Word has length 78 [2022-01-10 10:02:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:26,175 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 183 transitions. [2022-01-10 10:02:26,175 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 10:02:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 183 transitions. [2022-01-10 10:02:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 10:02:26,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:26,176 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 10:02:26,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-10 10:02:26,176 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 10:02:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1179647823, now seen corresponding path program 1 times [2022-01-10 10:02:26,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:26,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405899731] [2022-01-10 10:02:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:26,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:26,302 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 10:02:26,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:26,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405899731] [2022-01-10 10:02:26,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405899731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:26,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:26,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 10:02:26,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991782602] [2022-01-10 10:02:26,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:26,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 10:02:26,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:26,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 10:02:26,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 10:02:26,304 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 10:02:26,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:26,633 INFO L93 Difference]: Finished difference Result 374 states and 439 transitions. [2022-01-10 10:02:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 10:02:26,633 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 10:02:26,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:26,634 INFO L225 Difference]: With dead ends: 374 [2022-01-10 10:02:26,634 INFO L226 Difference]: Without dead ends: 300 [2022-01-10 10:02:26,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2022-01-10 10:02:26,636 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, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 10:02:26,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 2558 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 10:02:26,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-01-10 10:02:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 158. [2022-01-10 10:02:26,674 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 10:02:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 182 transitions. [2022-01-10 10:02:26,675 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 182 transitions. Word has length 79 [2022-01-10 10:02:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:26,675 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 182 transitions. [2022-01-10 10:02:26,675 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 10:02:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 182 transitions. [2022-01-10 10:02:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 10:02:26,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:26,676 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 10:02:26,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-10 10:02:26,676 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 10:02:26,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1845080408, now seen corresponding path program 1 times [2022-01-10 10:02:26,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:26,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360474605] [2022-01-10 10:02:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:26,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:26,788 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 10:02:26,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:26,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360474605] [2022-01-10 10:02:26,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360474605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:26,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:26,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 10:02:26,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341301399] [2022-01-10 10:02:26,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:26,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 10:02:26,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:26,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 10:02:26,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 10:02:26,789 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 10:02:27,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:27,026 INFO L93 Difference]: Finished difference Result 411 states and 477 transitions. [2022-01-10 10:02:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 10:02:27,026 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 10:02:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:27,027 INFO L225 Difference]: With dead ends: 411 [2022-01-10 10:02:27,027 INFO L226 Difference]: Without dead ends: 287 [2022-01-10 10:02:27,028 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 10:02:27,028 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 221 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 10:02:27,028 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 10:02:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-01-10 10:02:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 229. [2022-01-10 10:02:27,075 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 10:02:27,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2022-01-10 10:02:27,076 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 84 [2022-01-10 10:02:27,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:27,076 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2022-01-10 10:02:27,076 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 10:02:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2022-01-10 10:02:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 10:02:27,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:27,077 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 10:02:27,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-10 10:02:27,077 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 10:02:27,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:27,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1273829175, now seen corresponding path program 1 times [2022-01-10 10:02:27,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:27,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215052237] [2022-01-10 10:02:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:27,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:27,161 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 10:02:27,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:27,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215052237] [2022-01-10 10:02:27,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215052237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:27,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:27,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 10:02:27,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036639649] [2022-01-10 10:02:27,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:27,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 10:02:27,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 10:02:27,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 10:02:27,162 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 10:02:27,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:27,383 INFO L93 Difference]: Finished difference Result 424 states and 487 transitions. [2022-01-10 10:02:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 10:02:27,383 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 10:02:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:27,384 INFO L225 Difference]: With dead ends: 424 [2022-01-10 10:02:27,384 INFO L226 Difference]: Without dead ends: 404 [2022-01-10 10:02:27,385 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 10:02:27,385 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 321 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 10:02:27,385 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 10:02:27,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-01-10 10:02:27,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 226. [2022-01-10 10:02:27,435 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 10:02:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 254 transitions. [2022-01-10 10:02:27,435 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 254 transitions. Word has length 84 [2022-01-10 10:02:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:27,435 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 254 transitions. [2022-01-10 10:02:27,436 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 10:02:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 254 transitions. [2022-01-10 10:02:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 10:02:27,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:27,436 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 10:02:27,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-10 10:02:27,437 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 10:02:27,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash -818304445, now seen corresponding path program 1 times [2022-01-10 10:02:27,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:27,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91058589] [2022-01-10 10:02:27,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:27,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:27,531 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 10:02:27,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:27,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91058589] [2022-01-10 10:02:27,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91058589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:27,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:27,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 10:02:27,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474190886] [2022-01-10 10:02:27,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:27,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 10:02:27,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:27,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 10:02:27,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 10:02:27,533 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 10:02:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:27,659 INFO L93 Difference]: Finished difference Result 261 states and 292 transitions. [2022-01-10 10:02:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:27,659 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 10:02:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:27,659 INFO L225 Difference]: With dead ends: 261 [2022-01-10 10:02:27,660 INFO L226 Difference]: Without dead ends: 224 [2022-01-10 10:02:27,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 10:02:27,660 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 10:02:27,660 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 10:02:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-01-10 10:02:27,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-01-10 10:02:27,700 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 10:02:27,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 250 transitions. [2022-01-10 10:02:27,701 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 250 transitions. Word has length 90 [2022-01-10 10:02:27,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:27,701 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 250 transitions. [2022-01-10 10:02:27,701 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 10:02:27,701 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 250 transitions. [2022-01-10 10:02:27,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 10:02:27,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:27,702 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 10:02:27,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-10 10:02:27,702 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 10:02:27,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1787209314, now seen corresponding path program 1 times [2022-01-10 10:02:27,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:27,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352492900] [2022-01-10 10:02:27,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:27,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:27,769 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 10:02:27,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:27,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352492900] [2022-01-10 10:02:27,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352492900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:27,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:27,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 10:02:27,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266185205] [2022-01-10 10:02:27,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:27,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 10:02:27,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:27,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 10:02:27,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 10:02:27,770 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 10:02:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:27,856 INFO L93 Difference]: Finished difference Result 304 states and 341 transitions. [2022-01-10 10:02:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 10:02:27,856 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 10:02:27,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:27,857 INFO L225 Difference]: With dead ends: 304 [2022-01-10 10:02:27,857 INFO L226 Difference]: Without dead ends: 261 [2022-01-10 10:02:27,857 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 10:02:27,858 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 10:02:27,858 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 10:02:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-10 10:02:27,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 226. [2022-01-10 10:02:27,906 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 10:02:27,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 252 transitions. [2022-01-10 10:02:27,907 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 252 transitions. Word has length 90 [2022-01-10 10:02:27,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:27,907 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 252 transitions. [2022-01-10 10:02:27,907 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 10:02:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 252 transitions. [2022-01-10 10:02:27,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 10:02:27,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:27,908 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 10:02:27,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-10 10:02:27,908 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 10:02:27,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:27,908 INFO L85 PathProgramCache]: Analyzing trace with hash -258980222, now seen corresponding path program 1 times [2022-01-10 10:02:27,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:27,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694154411] [2022-01-10 10:02:27,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:27,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:28,021 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 10:02:28,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:28,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694154411] [2022-01-10 10:02:28,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694154411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:28,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:28,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 10:02:28,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653702121] [2022-01-10 10:02:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:28,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 10:02:28,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:28,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 10:02:28,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 10:02:28,022 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 10:02:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:28,172 INFO L93 Difference]: Finished difference Result 284 states and 314 transitions. [2022-01-10 10:02:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 10:02:28,172 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 10:02:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:28,173 INFO L225 Difference]: With dead ends: 284 [2022-01-10 10:02:28,173 INFO L226 Difference]: Without dead ends: 230 [2022-01-10 10:02:28,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 10:02:28,173 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 10:02:28,173 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 10:02:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-10 10:02:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 225. [2022-01-10 10:02:28,223 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 10:02:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 248 transitions. [2022-01-10 10:02:28,223 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 248 transitions. Word has length 90 [2022-01-10 10:02:28,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:28,223 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 248 transitions. [2022-01-10 10:02:28,223 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 10:02:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 248 transitions. [2022-01-10 10:02:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 10:02:28,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:28,224 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 10:02:28,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-10 10:02:28,225 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 10:02:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash 480751571, now seen corresponding path program 1 times [2022-01-10 10:02:28,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:28,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935752649] [2022-01-10 10:02:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:28,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:28,357 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 10:02:28,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:28,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935752649] [2022-01-10 10:02:28,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935752649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:28,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:28,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 10:02:28,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660551378] [2022-01-10 10:02:28,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:28,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 10:02:28,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:28,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 10:02:28,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 10:02:28,358 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 10:02:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:28,697 INFO L93 Difference]: Finished difference Result 500 states and 558 transitions. [2022-01-10 10:02:28,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 10:02:28,697 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 10:02:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:28,698 INFO L225 Difference]: With dead ends: 500 [2022-01-10 10:02:28,698 INFO L226 Difference]: Without dead ends: 465 [2022-01-10 10:02:28,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-01-10 10:02:28,699 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 10:02:28,699 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 10:02:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-01-10 10:02:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 232. [2022-01-10 10:02:28,739 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 10:02:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 257 transitions. [2022-01-10 10:02:28,739 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 257 transitions. Word has length 91 [2022-01-10 10:02:28,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:28,740 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 257 transitions. [2022-01-10 10:02:28,740 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 10:02:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 257 transitions. [2022-01-10 10:02:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 10:02:28,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:28,741 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 10:02:28,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-10 10:02:28,741 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 10:02:28,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1643771459, now seen corresponding path program 1 times [2022-01-10 10:02:28,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:28,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624471783] [2022-01-10 10:02:28,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:28,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:28,837 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 10:02:28,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:28,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624471783] [2022-01-10 10:02:28,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624471783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:28,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:28,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 10:02:28,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130084614] [2022-01-10 10:02:28,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:28,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 10:02:28,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 10:02:28,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 10:02:28,839 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 10:02:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:28,972 INFO L93 Difference]: Finished difference Result 267 states and 295 transitions. [2022-01-10 10:02:28,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 10:02:28,972 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 10:02:28,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:28,973 INFO L225 Difference]: With dead ends: 267 [2022-01-10 10:02:28,973 INFO L226 Difference]: Without dead ends: 145 [2022-01-10 10:02:28,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 10:02:28,974 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 10:02:28,974 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 10:02:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-01-10 10:02:29,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 139. [2022-01-10 10:02:29,004 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 10:02:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-01-10 10:02:29,005 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 95 [2022-01-10 10:02:29,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:29,005 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-01-10 10:02:29,005 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 10:02:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-01-10 10:02:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 10:02:29,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 10:02:29,005 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 10:02:29,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-10 10:02:29,006 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 10:02:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 10:02:29,006 INFO L85 PathProgramCache]: Analyzing trace with hash 543577923, now seen corresponding path program 1 times [2022-01-10 10:02:29,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 10:02:29,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750646799] [2022-01-10 10:02:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 10:02:29,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 10:02:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 10:02:29,110 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 10:02:29,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 10:02:29,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750646799] [2022-01-10 10:02:29,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750646799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 10:02:29,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 10:02:29,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 10:02:29,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693102678] [2022-01-10 10:02:29,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 10:02:29,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 10:02:29,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 10:02:29,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 10:02:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 10:02:29,111 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 10:02:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 10:02:29,261 INFO L93 Difference]: Finished difference Result 181 states and 200 transitions. [2022-01-10 10:02:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 10:02:29,261 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 10:02:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 10:02:29,261 INFO L225 Difference]: With dead ends: 181 [2022-01-10 10:02:29,261 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 10:02:29,262 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 10:02:29,262 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 10:02:29,262 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 10:02:29,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 10:02:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 10:02:29,263 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 10:02:29,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 10:02:29,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2022-01-10 10:02:29,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 10:02:29,263 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 10:02:29,263 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 10:02:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 10:02:29,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 10:02:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (52 of 53 remaining) [2022-01-10 10:02:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION (51 of 53 remaining) [2022-01-10 10:02:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (50 of 53 remaining) [2022-01-10 10:02:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION (49 of 53 remaining) [2022-01-10 10:02:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION (48 of 53 remaining) [2022-01-10 10:02:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (47 of 53 remaining) [2022-01-10 10:02:29,265 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (46 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (45 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (44 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (43 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (42 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (41 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (40 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (39 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (38 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (37 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (36 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (35 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (34 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (33 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (32 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (31 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION (30 of 53 remaining) [2022-01-10 10:02:29,266 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION (29 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION (28 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (27 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (26 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (25 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (24 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (23 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (22 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (21 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (20 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION (19 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (18 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (17 of 53 remaining) [2022-01-10 10:02:29,267 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION (16 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (15 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (14 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (13 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION (12 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION (11 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (10 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION (9 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (8 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION (7 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (6 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (5 of 53 remaining) [2022-01-10 10:02:29,268 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (4 of 53 remaining) [2022-01-10 10:02:29,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (3 of 53 remaining) [2022-01-10 10:02:29,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (2 of 53 remaining) [2022-01-10 10:02:29,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (1 of 53 remaining) [2022-01-10 10:02:29,269 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (0 of 53 remaining) [2022-01-10 10:02:29,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-10 10:02:29,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.