/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_LAZY.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 15:51:48,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 15:51:48,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 15:51:48,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 15:51:48,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 15:51:48,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 15:51:48,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 15:51:48,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 15:51:48,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 15:51:48,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 15:51:48,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 15:51:48,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 15:51:48,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 15:51:48,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 15:51:48,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 15:51:48,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 15:51:48,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 15:51:48,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 15:51:48,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 15:51:48,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 15:51:48,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 15:51:48,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 15:51:48,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 15:51:48,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 15:51:48,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 15:51:48,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 15:51:48,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 15:51:48,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 15:51:48,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 15:51:48,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 15:51:48,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 15:51:48,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 15:51:48,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 15:51:48,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 15:51:48,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 15:51:48,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 15:51:48,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 15:51:48,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 15:51:48,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 15:51:48,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 15:51:48,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 15:51:48,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 15:51:48,629 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 15:51:48,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 15:51:48,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 15:51:48,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 15:51:48,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 15:51:48,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 15:51:48,631 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 15:51:48,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 15:51:48,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 15:51:48,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 15:51:48,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 15:51:48,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 15:51:48,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 15:51:48,632 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 15:51:48,632 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 15:51:48,632 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 15:51:48,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 15:51:48,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 15:51:48,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 15:51:48,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 15:51:48,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:51:48,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 15:51:48,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 15:51:48,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 15:51:48,635 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 15:51:48,635 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 15:51:48,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 15:51:48,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 15:51:48,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 15:51:48,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 15:51:48,835 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 15:51:48,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2022-01-10 15:51:48,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d429f761b/1307dc09aa804a3c9a23a76bf01bade0/FLAG9e0a02f31 [2022-01-10 15:51:49,300 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 15:51:49,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2022-01-10 15:51:49,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d429f761b/1307dc09aa804a3c9a23a76bf01bade0/FLAG9e0a02f31 [2022-01-10 15:51:49,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d429f761b/1307dc09aa804a3c9a23a76bf01bade0 [2022-01-10 15:51:49,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 15:51:49,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 15:51:49,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 15:51:49,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 15:51:49,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 15:51:49,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f488b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49, skipping insertion in model container [2022-01-10 15:51:49,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 15:51:49,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:51:49,528 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_simpl3.cil-2.c[2713,2726] [2022-01-10 15:51:49,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:51:49,651 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 15:51:49,671 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_simpl3.cil-2.c[2713,2726] [2022-01-10 15:51:49,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:51:49,741 INFO L208 MainTranslator]: Completed translation [2022-01-10 15:51:49,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49 WrapperNode [2022-01-10 15:51:49,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 15:51:49,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 15:51:49,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 15:51:49,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 15:51:49,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,830 INFO L137 Inliner]: procedures = 38, calls = 62, calls flagged for inlining = 57, calls inlined = 102, statements flattened = 1723 [2022-01-10 15:51:49,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 15:51:49,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 15:51:49,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 15:51:49,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 15:51:49,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 15:51:49,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 15:51:49,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 15:51:49,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 15:51:49,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (1/1) ... [2022-01-10 15:51:49,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:51:49,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:51:49,960 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 15:51:49,966 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 15:51:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 15:51:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 15:51:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 15:51:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 15:51:50,136 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 15:51:50,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 15:51:50,142 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,146 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,150 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,153 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,154 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,160 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,162 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,164 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,165 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,166 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,168 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,170 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,170 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,171 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,172 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,174 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,184 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,189 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,192 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,196 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,198 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,199 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,199 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,200 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 15:51:50,865 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2022-01-10 15:51:50,865 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2022-01-10 15:51:50,865 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2022-01-10 15:51:50,865 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2022-01-10 15:51:50,865 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2022-01-10 15:51:50,865 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2022-01-10 15:51:50,866 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2022-01-10 15:51:50,866 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2022-01-10 15:51:50,866 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2022-01-10 15:51:50,866 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2022-01-10 15:51:50,866 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2022-01-10 15:51:50,867 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2022-01-10 15:51:50,867 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2022-01-10 15:51:50,867 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2022-01-10 15:51:50,867 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2022-01-10 15:51:50,867 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2022-01-10 15:51:50,867 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2022-01-10 15:51:50,868 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2022-01-10 15:51:50,869 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2022-01-10 15:51:50,869 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2022-01-10 15:51:50,869 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2022-01-10 15:51:50,869 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2022-01-10 15:51:50,869 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2022-01-10 15:51:50,870 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2022-01-10 15:51:50,871 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2022-01-10 15:51:50,871 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 15:51:50,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 15:51:50,884 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 15:51:50,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:51:50 BoogieIcfgContainer [2022-01-10 15:51:50,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 15:51:50,887 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 15:51:50,887 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 15:51:50,889 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 15:51:50,891 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:51:50" (1/1) ... [2022-01-10 15:51:51,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:51:51 BasicIcfg [2022-01-10 15:51:51,081 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 15:51:51,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 15:51:51,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 15:51:51,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 15:51:51,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:51:49" (1/4) ... [2022-01-10 15:51:51,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd5b3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:51:51, skipping insertion in model container [2022-01-10 15:51:51,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:51:49" (2/4) ... [2022-01-10 15:51:51,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd5b3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:51:51, skipping insertion in model container [2022-01-10 15:51:51,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:51:50" (3/4) ... [2022-01-10 15:51:51,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd5b3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:51:51, skipping insertion in model container [2022-01-10 15:51:51,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:51:51" (4/4) ... [2022-01-10 15:51:51,085 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.cTransformedIcfg [2022-01-10 15:51:51,089 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 15:51:51,089 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2022-01-10 15:51:51,118 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 15:51:51,122 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 15:51:51,123 INFO L340 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-01-10 15:51:51,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 472 states, 431 states have (on average 1.517401392111369) internal successors, (654), 471 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:51,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 15:51:51,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:51,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:51,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:51,163 INFO L85 PathProgramCache]: Analyzing trace with hash -775553063, now seen corresponding path program 1 times [2022-01-10 15:51:51,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:51,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213073574] [2022-01-10 15:51:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:51,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:51,402 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 15:51:51,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:51,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213073574] [2022-01-10 15:51:51,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213073574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:51,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:51,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:51,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451602657] [2022-01-10 15:51:51,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:51,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:51,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:51,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:51,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:51,440 INFO L87 Difference]: Start difference. First operand has 472 states, 431 states have (on average 1.517401392111369) internal successors, (654), 471 states have internal predecessors, (654), 0 states have call successors, (0), 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 15:51:51,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:51,647 INFO L93 Difference]: Finished difference Result 832 states and 1163 transitions. [2022-01-10 15:51:51,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:51,649 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 15:51:51,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:51,657 INFO L225 Difference]: With dead ends: 832 [2022-01-10 15:51:51,658 INFO L226 Difference]: Without dead ends: 426 [2022-01-10 15:51:51,661 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 15:51:51,663 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 8 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:51,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 981 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 15:51:51,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-01-10 15:51:51,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2022-01-10 15:51:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 386 states have (on average 1.4404145077720207) internal successors, (556), 425 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:51,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 556 transitions. [2022-01-10 15:51:51,704 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 556 transitions. Word has length 12 [2022-01-10 15:51:51,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:51,704 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 556 transitions. [2022-01-10 15:51:51,704 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 15:51:51,704 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 556 transitions. [2022-01-10 15:51:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 15:51:51,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:51,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:51,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 15:51:51,705 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:51,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:51,706 INFO L85 PathProgramCache]: Analyzing trace with hash 904834142, now seen corresponding path program 1 times [2022-01-10 15:51:51,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:51,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100591111] [2022-01-10 15:51:51,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:51,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:51,829 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 15:51:51,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:51,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100591111] [2022-01-10 15:51:51,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100591111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:51,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:51,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:51,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108624206] [2022-01-10 15:51:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:51,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:51,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:51,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:51,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:51,831 INFO L87 Difference]: Start difference. First operand 426 states and 556 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:52,004 INFO L93 Difference]: Finished difference Result 720 states and 947 transitions. [2022-01-10 15:51:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:52,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 15:51:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:52,007 INFO L225 Difference]: With dead ends: 720 [2022-01-10 15:51:52,007 INFO L226 Difference]: Without dead ends: 554 [2022-01-10 15:51:52,008 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 15:51:52,009 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 289 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:52,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 928 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-01-10 15:51:52,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 531. [2022-01-10 15:51:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 503 states have (on average 1.4055666003976144) internal successors, (707), 530 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 707 transitions. [2022-01-10 15:51:52,032 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 707 transitions. Word has length 15 [2022-01-10 15:51:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:52,032 INFO L470 AbstractCegarLoop]: Abstraction has 531 states and 707 transitions. [2022-01-10 15:51:52,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 707 transitions. [2022-01-10 15:51:52,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 15:51:52,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:52,033 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 15:51:52,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 15:51:52,033 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:52,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:52,034 INFO L85 PathProgramCache]: Analyzing trace with hash 730448400, now seen corresponding path program 1 times [2022-01-10 15:51:52,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:52,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997515049] [2022-01-10 15:51:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:52,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:52,101 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 15:51:52,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:52,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997515049] [2022-01-10 15:51:52,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997515049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:52,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:52,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:52,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412066612] [2022-01-10 15:51:52,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:52,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:52,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:52,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:52,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:52,104 INFO L87 Difference]: Start difference. First operand 531 states and 707 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 15:51:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:52,149 INFO L93 Difference]: Finished difference Result 1006 states and 1341 transitions. [2022-01-10 15:51:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:52,149 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 15:51:52,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:52,151 INFO L225 Difference]: With dead ends: 1006 [2022-01-10 15:51:52,152 INFO L226 Difference]: Without dead ends: 692 [2022-01-10 15:51:52,155 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 15:51:52,158 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 415 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:52,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 683 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-01-10 15:51:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 523. [2022-01-10 15:51:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 503 states have (on average 1.3916500994035785) internal successors, (700), 522 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 700 transitions. [2022-01-10 15:51:52,177 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 700 transitions. Word has length 18 [2022-01-10 15:51:52,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:52,177 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 700 transitions. [2022-01-10 15:51:52,177 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 15:51:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 700 transitions. [2022-01-10 15:51:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 15:51:52,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:52,179 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 15:51:52,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 15:51:52,179 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:52,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:52,180 INFO L85 PathProgramCache]: Analyzing trace with hash 852582601, now seen corresponding path program 1 times [2022-01-10 15:51:52,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:52,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910891821] [2022-01-10 15:51:52,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:52,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:52,231 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 15:51:52,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:52,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910891821] [2022-01-10 15:51:52,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910891821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:52,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:52,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:52,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507677885] [2022-01-10 15:51:52,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:52,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:52,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:52,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:52,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:52,238 INFO L87 Difference]: Start difference. First operand 523 states and 700 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 15:51:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:52,267 INFO L93 Difference]: Finished difference Result 603 states and 798 transitions. [2022-01-10 15:51:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:52,267 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 15:51:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:52,270 INFO L225 Difference]: With dead ends: 603 [2022-01-10 15:51:52,270 INFO L226 Difference]: Without dead ends: 583 [2022-01-10 15:51:52,271 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 15:51:52,278 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 449 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 536 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 15:51:52,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 536 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:52,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-01-10 15:51:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 536. [2022-01-10 15:51:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 517 states have (on average 1.3984526112185687) internal successors, (723), 535 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 723 transitions. [2022-01-10 15:51:52,295 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 723 transitions. Word has length 21 [2022-01-10 15:51:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:52,295 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 723 transitions. [2022-01-10 15:51:52,295 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 15:51:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 723 transitions. [2022-01-10 15:51:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 15:51:52,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:52,299 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] [2022-01-10 15:51:52,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 15:51:52,299 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:52,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1080193629, now seen corresponding path program 1 times [2022-01-10 15:51:52,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:52,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499847070] [2022-01-10 15:51:52,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:52,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:52,344 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 15:51:52,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:52,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499847070] [2022-01-10 15:51:52,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499847070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:52,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:52,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:52,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887858206] [2022-01-10 15:51:52,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:52,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:52,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:52,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:52,346 INFO L87 Difference]: Start difference. First operand 536 states and 723 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:52,454 INFO L93 Difference]: Finished difference Result 562 states and 755 transitions. [2022-01-10 15:51:52,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:52,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-01-10 15:51:52,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:52,456 INFO L225 Difference]: With dead ends: 562 [2022-01-10 15:51:52,456 INFO L226 Difference]: Without dead ends: 557 [2022-01-10 15:51:52,457 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 15:51:52,457 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 19 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:52,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 799 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:52,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-01-10 15:51:52,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2022-01-10 15:51:52,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 538 states have (on average 1.3940520446096654) internal successors, (750), 556 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 750 transitions. [2022-01-10 15:51:52,471 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 750 transitions. Word has length 24 [2022-01-10 15:51:52,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:52,472 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 750 transitions. [2022-01-10 15:51:52,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 750 transitions. [2022-01-10 15:51:52,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 15:51:52,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:52,474 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] [2022-01-10 15:51:52,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 15:51:52,474 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:52,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:52,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2096096929, now seen corresponding path program 1 times [2022-01-10 15:51:52,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:52,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200681384] [2022-01-10 15:51:52,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:52,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:52,519 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 15:51:52,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:52,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200681384] [2022-01-10 15:51:52,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200681384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:52,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:52,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:52,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714948622] [2022-01-10 15:51:52,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:52,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:52,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:52,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:52,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:52,521 INFO L87 Difference]: Start difference. First operand 557 states and 750 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:52,705 INFO L93 Difference]: Finished difference Result 756 states and 1016 transitions. [2022-01-10 15:51:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-01-10 15:51:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:52,708 INFO L225 Difference]: With dead ends: 756 [2022-01-10 15:51:52,708 INFO L226 Difference]: Without dead ends: 748 [2022-01-10 15:51:52,708 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 15:51:52,709 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 128 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:52,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 915 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:52,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-01-10 15:51:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 575. [2022-01-10 15:51:52,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 556 states have (on average 1.3974820143884892) internal successors, (777), 574 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 777 transitions. [2022-01-10 15:51:52,728 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 777 transitions. Word has length 24 [2022-01-10 15:51:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:52,728 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 777 transitions. [2022-01-10 15:51:52,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 777 transitions. [2022-01-10 15:51:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 15:51:52,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:52,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:52,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 15:51:52,730 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:52,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:52,730 INFO L85 PathProgramCache]: Analyzing trace with hash -872717415, now seen corresponding path program 1 times [2022-01-10 15:51:52,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:52,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434775786] [2022-01-10 15:51:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:52,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:52,783 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 15:51:52,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:52,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434775786] [2022-01-10 15:51:52,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434775786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:52,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:52,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:52,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626567472] [2022-01-10 15:51:52,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:52,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:52,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:52,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:52,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:52,785 INFO L87 Difference]: Start difference. First operand 575 states and 777 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 15:51:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:52,812 INFO L93 Difference]: Finished difference Result 588 states and 791 transitions. [2022-01-10 15:51:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 15:51:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:52,814 INFO L225 Difference]: With dead ends: 588 [2022-01-10 15:51:52,815 INFO L226 Difference]: Without dead ends: 573 [2022-01-10 15:51:52,815 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 15:51:52,816 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 16 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:52,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 1402 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:52,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-01-10 15:51:52,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-01-10 15:51:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 554 states have (on average 1.3971119133574008) internal successors, (774), 572 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 774 transitions. [2022-01-10 15:51:52,833 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 774 transitions. Word has length 25 [2022-01-10 15:51:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:52,834 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 774 transitions. [2022-01-10 15:51:52,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 15:51:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 774 transitions. [2022-01-10 15:51:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 15:51:52,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:52,835 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 15:51:52,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 15:51:52,836 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:52,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:52,836 INFO L85 PathProgramCache]: Analyzing trace with hash -555510357, now seen corresponding path program 1 times [2022-01-10 15:51:52,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:52,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208400424] [2022-01-10 15:51:52,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:52,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:52,887 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 15:51:52,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:52,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208400424] [2022-01-10 15:51:52,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208400424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:52,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:52,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:52,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286217767] [2022-01-10 15:51:52,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:52,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:52,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:52,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:52,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:52,888 INFO L87 Difference]: Start difference. First operand 573 states and 774 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 15:51:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:52,916 INFO L93 Difference]: Finished difference Result 648 states and 865 transitions. [2022-01-10 15:51:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:52,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 15:51:52,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:52,919 INFO L225 Difference]: With dead ends: 648 [2022-01-10 15:51:52,919 INFO L226 Difference]: Without dead ends: 593 [2022-01-10 15:51:52,919 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 15:51:52,919 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 43 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1395 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 15:51:52,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1395 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-01-10 15:51:52,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 575. [2022-01-10 15:51:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 556 states have (on average 1.39568345323741) internal successors, (776), 574 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:52,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 776 transitions. [2022-01-10 15:51:52,939 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 776 transitions. Word has length 25 [2022-01-10 15:51:52,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:52,940 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 776 transitions. [2022-01-10 15:51:52,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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 15:51:52,940 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 776 transitions. [2022-01-10 15:51:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 15:51:52,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:52,941 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 15:51:52,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 15:51:52,941 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:52,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1912478668, now seen corresponding path program 1 times [2022-01-10 15:51:52,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:52,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346841970] [2022-01-10 15:51:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:52,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:52,975 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 15:51:52,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:52,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346841970] [2022-01-10 15:51:52,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346841970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:52,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:52,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:52,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894292467] [2022-01-10 15:51:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:52,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:52,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:52,977 INFO L87 Difference]: Start difference. First operand 575 states and 776 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 15:51:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:53,091 INFO L93 Difference]: Finished difference Result 575 states and 776 transitions. [2022-01-10 15:51:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:53,091 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 15:51:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:53,094 INFO L225 Difference]: With dead ends: 575 [2022-01-10 15:51:53,094 INFO L226 Difference]: Without dead ends: 563 [2022-01-10 15:51:53,095 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 15:51:53,096 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 71 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:53,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 702 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-01-10 15:51:53,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-01-10 15:51:53,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 550 states have (on average 1.3872727272727272) internal successors, (763), 562 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:53,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 763 transitions. [2022-01-10 15:51:53,113 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 763 transitions. Word has length 27 [2022-01-10 15:51:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:53,113 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 763 transitions. [2022-01-10 15:51:53,114 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 15:51:53,114 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 763 transitions. [2022-01-10 15:51:53,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 15:51:53,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:53,115 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 15:51:53,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 15:51:53,116 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:53,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash 602870357, now seen corresponding path program 1 times [2022-01-10 15:51:53,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:53,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629178074] [2022-01-10 15:51:53,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:53,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:51:53,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:53,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629178074] [2022-01-10 15:51:53,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629178074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:53,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:53,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:53,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361968664] [2022-01-10 15:51:53,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:53,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:53,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:53,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:53,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:53,170 INFO L87 Difference]: Start difference. First operand 563 states and 763 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 15:51:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:53,339 INFO L93 Difference]: Finished difference Result 845 states and 1122 transitions. [2022-01-10 15:51:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:53,340 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 15:51:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:53,341 INFO L225 Difference]: With dead ends: 845 [2022-01-10 15:51:53,341 INFO L226 Difference]: Without dead ends: 594 [2022-01-10 15:51:53,342 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 15:51:53,342 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 726 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:53,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 734 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:53,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-01-10 15:51:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 546. [2022-01-10 15:51:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 534 states have (on average 1.3614232209737829) internal successors, (727), 545 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 727 transitions. [2022-01-10 15:51:53,366 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 727 transitions. Word has length 28 [2022-01-10 15:51:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:53,366 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 727 transitions. [2022-01-10 15:51:53,366 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 15:51:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 727 transitions. [2022-01-10 15:51:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 15:51:53,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:53,367 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 15:51:53,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 15:51:53,367 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:53,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1735476053, now seen corresponding path program 1 times [2022-01-10 15:51:53,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:53,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465887799] [2022-01-10 15:51:53,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:53,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:53,402 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 15:51:53,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:53,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465887799] [2022-01-10 15:51:53,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465887799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:53,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:53,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:53,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133203763] [2022-01-10 15:51:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:53,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:53,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:53,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:53,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:53,403 INFO L87 Difference]: Start difference. First operand 546 states and 727 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 15:51:53,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:53,518 INFO L93 Difference]: Finished difference Result 756 states and 1007 transitions. [2022-01-10 15:51:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:53,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 15:51:53,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:53,520 INFO L225 Difference]: With dead ends: 756 [2022-01-10 15:51:53,520 INFO L226 Difference]: Without dead ends: 548 [2022-01-10 15:51:53,520 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 15:51:53,521 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 27 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:53,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 792 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:53,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-01-10 15:51:53,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2022-01-10 15:51:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 538 states have (on average 1.3568773234200744) internal successors, (730), 547 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 730 transitions. [2022-01-10 15:51:53,543 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 730 transitions. Word has length 31 [2022-01-10 15:51:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:53,543 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 730 transitions. [2022-01-10 15:51:53,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 15:51:53,544 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 730 transitions. [2022-01-10 15:51:53,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-10 15:51:53,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:53,544 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] [2022-01-10 15:51:53,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 15:51:53,544 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:53,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash 77134352, now seen corresponding path program 1 times [2022-01-10 15:51:53,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:53,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683852679] [2022-01-10 15:51:53,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:53,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:53,573 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 15:51:53,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:53,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683852679] [2022-01-10 15:51:53,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683852679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:53,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:53,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:53,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726427426] [2022-01-10 15:51:53,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:53,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:53,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:53,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:53,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:53,575 INFO L87 Difference]: Start difference. First operand 548 states and 730 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 15:51:53,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:53,611 INFO L93 Difference]: Finished difference Result 729 states and 965 transitions. [2022-01-10 15:51:53,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:53,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 15:51:53,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:53,612 INFO L225 Difference]: With dead ends: 729 [2022-01-10 15:51:53,613 INFO L226 Difference]: Without dead ends: 524 [2022-01-10 15:51:53,613 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 15:51:53,613 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 203 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:53,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 699 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:53,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-01-10 15:51:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 508. [2022-01-10 15:51:53,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 498 states have (on average 1.3493975903614457) internal successors, (672), 507 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:53,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 672 transitions. [2022-01-10 15:51:53,636 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 672 transitions. Word has length 31 [2022-01-10 15:51:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:53,636 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 672 transitions. [2022-01-10 15:51:53,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 15:51:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 672 transitions. [2022-01-10 15:51:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 15:51:53,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:53,637 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 15:51:53,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 15:51:53,637 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:53,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1791955756, now seen corresponding path program 1 times [2022-01-10 15:51:53,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:53,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231837574] [2022-01-10 15:51:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:53,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:53,673 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 15:51:53,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:53,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231837574] [2022-01-10 15:51:53,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231837574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:53,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:53,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:53,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887462598] [2022-01-10 15:51:53,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:53,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:53,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:53,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:53,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:53,674 INFO L87 Difference]: Start difference. First operand 508 states and 672 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 15:51:53,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:53,722 INFO L93 Difference]: Finished difference Result 766 states and 1006 transitions. [2022-01-10 15:51:53,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:53,722 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 15:51:53,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:53,724 INFO L225 Difference]: With dead ends: 766 [2022-01-10 15:51:53,724 INFO L226 Difference]: Without dead ends: 570 [2022-01-10 15:51:53,724 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 15:51:53,725 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 176 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 793 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 15:51:53,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 793 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:53,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-01-10 15:51:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 496. [2022-01-10 15:51:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 489 states have (on average 1.3374233128834356) internal successors, (654), 495 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 654 transitions. [2022-01-10 15:51:53,746 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 654 transitions. Word has length 34 [2022-01-10 15:51:53,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:53,746 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 654 transitions. [2022-01-10 15:51:53,746 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 15:51:53,746 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 654 transitions. [2022-01-10 15:51:53,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 15:51:53,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:53,747 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 15:51:53,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 15:51:53,747 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:53,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:53,748 INFO L85 PathProgramCache]: Analyzing trace with hash 155281603, now seen corresponding path program 1 times [2022-01-10 15:51:53,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:53,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685437400] [2022-01-10 15:51:53,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:53,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:53,774 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 15:51:53,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:53,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685437400] [2022-01-10 15:51:53,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685437400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:53,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:53,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:53,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43806882] [2022-01-10 15:51:53,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:53,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:53,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:53,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:53,776 INFO L87 Difference]: Start difference. First operand 496 states and 654 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 15:51:53,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:53,898 INFO L93 Difference]: Finished difference Result 655 states and 854 transitions. [2022-01-10 15:51:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:53,899 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 15:51:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:53,900 INFO L225 Difference]: With dead ends: 655 [2022-01-10 15:51:53,900 INFO L226 Difference]: Without dead ends: 647 [2022-01-10 15:51:53,901 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 15:51:53,901 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 159 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:53,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 763 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:53,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-01-10 15:51:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 539. [2022-01-10 15:51:53,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 532 states have (on average 1.3270676691729324) internal successors, (706), 538 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:53,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 706 transitions. [2022-01-10 15:51:53,926 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 706 transitions. Word has length 35 [2022-01-10 15:51:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:53,926 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 706 transitions. [2022-01-10 15:51:53,927 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 15:51:53,927 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 706 transitions. [2022-01-10 15:51:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 15:51:53,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:53,927 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 15:51:53,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 15:51:53,928 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:53,928 INFO L85 PathProgramCache]: Analyzing trace with hash -689849436, now seen corresponding path program 1 times [2022-01-10 15:51:53,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:53,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596047006] [2022-01-10 15:51:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:53,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:53,965 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 15:51:53,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:53,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596047006] [2022-01-10 15:51:53,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596047006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:53,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:53,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 15:51:53,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093885486] [2022-01-10 15:51:53,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:53,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 15:51:53,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 15:51:53,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 15:51:53,966 INFO L87 Difference]: Start difference. First operand 539 states and 706 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 15:51:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:54,020 INFO L93 Difference]: Finished difference Result 555 states and 724 transitions. [2022-01-10 15:51:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 15:51:54,021 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 15:51:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:54,022 INFO L225 Difference]: With dead ends: 555 [2022-01-10 15:51:54,022 INFO L226 Difference]: Without dead ends: 525 [2022-01-10 15:51:54,023 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 15:51:54,023 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 42 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:54,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 1697 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-01-10 15:51:54,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2022-01-10 15:51:54,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 518 states have (on average 1.3243243243243243) internal successors, (686), 524 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 686 transitions. [2022-01-10 15:51:54,047 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 686 transitions. Word has length 35 [2022-01-10 15:51:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:54,047 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 686 transitions. [2022-01-10 15:51:54,047 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 15:51:54,047 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 686 transitions. [2022-01-10 15:51:54,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 15:51:54,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:54,048 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 15:51:54,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 15:51:54,048 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:54,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:54,048 INFO L85 PathProgramCache]: Analyzing trace with hash 519780851, now seen corresponding path program 1 times [2022-01-10 15:51:54,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:54,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743632289] [2022-01-10 15:51:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:54,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:54,080 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 15:51:54,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:54,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743632289] [2022-01-10 15:51:54,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743632289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:54,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:54,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:54,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775631551] [2022-01-10 15:51:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:54,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:54,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:54,082 INFO L87 Difference]: Start difference. First operand 525 states and 686 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 15:51:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:54,242 INFO L93 Difference]: Finished difference Result 641 states and 833 transitions. [2022-01-10 15:51:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:54,243 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 15:51:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:54,245 INFO L225 Difference]: With dead ends: 641 [2022-01-10 15:51:54,245 INFO L226 Difference]: Without dead ends: 633 [2022-01-10 15:51:54,245 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 15:51:54,245 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 722 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:54,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 721 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-01-10 15:51:54,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 525. [2022-01-10 15:51:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 518 states have (on average 1.3223938223938223) internal successors, (685), 524 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 685 transitions. [2022-01-10 15:51:54,281 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 685 transitions. Word has length 36 [2022-01-10 15:51:54,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:54,281 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 685 transitions. [2022-01-10 15:51:54,281 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 15:51:54,281 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 685 transitions. [2022-01-10 15:51:54,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-10 15:51:54,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:54,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:54,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 15:51:54,282 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:54,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:54,283 INFO L85 PathProgramCache]: Analyzing trace with hash -316957292, now seen corresponding path program 1 times [2022-01-10 15:51:54,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:54,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796385234] [2022-01-10 15:51:54,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:54,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:54,348 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 15:51:54,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:54,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796385234] [2022-01-10 15:51:54,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796385234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:54,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:54,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:54,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742927431] [2022-01-10 15:51:54,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:54,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:54,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:54,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:54,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:54,349 INFO L87 Difference]: Start difference. First operand 525 states and 685 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 15:51:54,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:54,433 INFO L93 Difference]: Finished difference Result 710 states and 924 transitions. [2022-01-10 15:51:54,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:54,434 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 15:51:54,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:54,435 INFO L225 Difference]: With dead ends: 710 [2022-01-10 15:51:54,435 INFO L226 Difference]: Without dead ends: 498 [2022-01-10 15:51:54,436 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 15:51:54,436 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 356 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 937 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 15:51:54,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 937 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:54,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-01-10 15:51:54,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 493. [2022-01-10 15:51:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 487 states have (on average 1.3121149897330595) internal successors, (639), 492 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 639 transitions. [2022-01-10 15:51:54,465 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 639 transitions. Word has length 36 [2022-01-10 15:51:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:54,465 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 639 transitions. [2022-01-10 15:51:54,465 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 15:51:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 639 transitions. [2022-01-10 15:51:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 15:51:54,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:54,466 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 15:51:54,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 15:51:54,466 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:54,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:54,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1097350901, now seen corresponding path program 1 times [2022-01-10 15:51:54,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:54,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765289837] [2022-01-10 15:51:54,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:54,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:54,506 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 15:51:54,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:54,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765289837] [2022-01-10 15:51:54,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765289837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:54,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:54,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:54,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323608230] [2022-01-10 15:51:54,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:54,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:54,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:54,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:54,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:54,507 INFO L87 Difference]: Start difference. First operand 493 states and 639 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:54,642 INFO L93 Difference]: Finished difference Result 589 states and 761 transitions. [2022-01-10 15:51:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:54,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-10 15:51:54,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:54,644 INFO L225 Difference]: With dead ends: 589 [2022-01-10 15:51:54,644 INFO L226 Difference]: Without dead ends: 584 [2022-01-10 15:51:54,644 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 15:51:54,644 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 676 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:54,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 720 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:54,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-01-10 15:51:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 495. [2022-01-10 15:51:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 489 states have (on average 1.30879345603272) internal successors, (640), 494 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 640 transitions. [2022-01-10 15:51:54,675 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 640 transitions. Word has length 37 [2022-01-10 15:51:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:54,675 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 640 transitions. [2022-01-10 15:51:54,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 640 transitions. [2022-01-10 15:51:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 15:51:54,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:54,676 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] [2022-01-10 15:51:54,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 15:51:54,676 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:54,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:54,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1097349876, now seen corresponding path program 1 times [2022-01-10 15:51:54,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:54,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062086591] [2022-01-10 15:51:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:54,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:54,711 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 15:51:54,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:54,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062086591] [2022-01-10 15:51:54,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062086591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:54,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:54,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:54,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429824019] [2022-01-10 15:51:54,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:54,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:54,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:54,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:54,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:54,712 INFO L87 Difference]: Start difference. First operand 495 states and 640 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:54,841 INFO L93 Difference]: Finished difference Result 500 states and 644 transitions. [2022-01-10 15:51:54,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:54,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-10 15:51:54,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:54,843 INFO L225 Difference]: With dead ends: 500 [2022-01-10 15:51:54,843 INFO L226 Difference]: Without dead ends: 452 [2022-01-10 15:51:54,843 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 15:51:54,844 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 459 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:54,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 605 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:54,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-01-10 15:51:54,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2022-01-10 15:51:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 446 states have (on average 1.304932735426009) internal successors, (582), 451 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 582 transitions. [2022-01-10 15:51:54,872 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 582 transitions. Word has length 37 [2022-01-10 15:51:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:54,872 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 582 transitions. [2022-01-10 15:51:54,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 582 transitions. [2022-01-10 15:51:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 15:51:54,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:54,872 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 15:51:54,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 15:51:54,873 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:54,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2045856132, now seen corresponding path program 1 times [2022-01-10 15:51:54,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:54,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838358697] [2022-01-10 15:51:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:54,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:54,905 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 15:51:54,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:54,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838358697] [2022-01-10 15:51:54,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838358697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:54,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:54,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:54,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360387842] [2022-01-10 15:51:54,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:54,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:54,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:54,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:54,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:54,907 INFO L87 Difference]: Start difference. First operand 452 states and 582 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 15:51:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:55,026 INFO L93 Difference]: Finished difference Result 952 states and 1227 transitions. [2022-01-10 15:51:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:55,026 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 15:51:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:55,028 INFO L225 Difference]: With dead ends: 952 [2022-01-10 15:51:55,028 INFO L226 Difference]: Without dead ends: 719 [2022-01-10 15:51:55,030 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 15:51:55,031 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 202 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:55,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 731 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:55,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-01-10 15:51:55,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 482. [2022-01-10 15:51:55,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 476 states have (on average 1.3067226890756303) internal successors, (622), 481 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 622 transitions. [2022-01-10 15:51:55,066 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 622 transitions. Word has length 37 [2022-01-10 15:51:55,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:55,066 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 622 transitions. [2022-01-10 15:51:55,066 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 15:51:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 622 transitions. [2022-01-10 15:51:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 15:51:55,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:55,066 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 15:51:55,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 15:51:55,067 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2120028445, now seen corresponding path program 1 times [2022-01-10 15:51:55,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:55,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396170682] [2022-01-10 15:51:55,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:55,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:51:55,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:55,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396170682] [2022-01-10 15:51:55,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396170682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:55,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:55,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:55,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390470327] [2022-01-10 15:51:55,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:55,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:55,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:55,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:55,124 INFO L87 Difference]: Start difference. First operand 482 states and 622 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:55,220 INFO L93 Difference]: Finished difference Result 540 states and 689 transitions. [2022-01-10 15:51:55,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:55,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-10 15:51:55,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:55,222 INFO L225 Difference]: With dead ends: 540 [2022-01-10 15:51:55,222 INFO L226 Difference]: Without dead ends: 461 [2022-01-10 15:51:55,222 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 15:51:55,223 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 441 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:55,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 621 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:55,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-01-10 15:51:55,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 447. [2022-01-10 15:51:55,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 441 states have (on average 1.2811791383219955) internal successors, (565), 446 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 565 transitions. [2022-01-10 15:51:55,252 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 565 transitions. Word has length 37 [2022-01-10 15:51:55,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:55,252 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 565 transitions. [2022-01-10 15:51:55,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,252 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 565 transitions. [2022-01-10 15:51:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 15:51:55,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:55,253 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] [2022-01-10 15:51:55,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 15:51:55,253 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:55,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:55,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2010618563, now seen corresponding path program 1 times [2022-01-10 15:51:55,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:55,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423310258] [2022-01-10 15:51:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:55,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:55,277 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 15:51:55,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:55,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423310258] [2022-01-10 15:51:55,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423310258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:55,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:55,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:55,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288218810] [2022-01-10 15:51:55,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:55,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:55,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:55,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:55,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:55,279 INFO L87 Difference]: Start difference. First operand 447 states and 565 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 15:51:55,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:55,404 INFO L93 Difference]: Finished difference Result 460 states and 575 transitions. [2022-01-10 15:51:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:55,405 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 15:51:55,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:55,407 INFO L225 Difference]: With dead ends: 460 [2022-01-10 15:51:55,407 INFO L226 Difference]: Without dead ends: 446 [2022-01-10 15:51:55,407 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 15:51:55,407 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 41 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:55,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 671 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:55,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-01-10 15:51:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 441. [2022-01-10 15:51:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 436 states have (on average 1.2775229357798166) internal successors, (557), 440 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 557 transitions. [2022-01-10 15:51:55,438 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 557 transitions. Word has length 37 [2022-01-10 15:51:55,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:55,438 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 557 transitions. [2022-01-10 15:51:55,438 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 15:51:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 557 transitions. [2022-01-10 15:51:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 15:51:55,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:55,439 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, 1, 1, 1, 1] [2022-01-10 15:51:55,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 15:51:55,439 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:55,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2094315533, now seen corresponding path program 1 times [2022-01-10 15:51:55,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:55,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188426230] [2022-01-10 15:51:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:55,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:55,469 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 15:51:55,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:55,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188426230] [2022-01-10 15:51:55,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188426230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:55,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:55,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:55,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575085702] [2022-01-10 15:51:55,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:55,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:55,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:55,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:55,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:55,470 INFO L87 Difference]: Start difference. First operand 441 states and 557 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:55,571 INFO L93 Difference]: Finished difference Result 446 states and 561 transitions. [2022-01-10 15:51:55,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:55,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 15:51:55,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:55,576 INFO L225 Difference]: With dead ends: 446 [2022-01-10 15:51:55,576 INFO L226 Difference]: Without dead ends: 441 [2022-01-10 15:51:55,577 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 15:51:55,577 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 416 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:55,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 661 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:55,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-01-10 15:51:55,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-01-10 15:51:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 436 states have (on average 1.2729357798165137) internal successors, (555), 440 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 555 transitions. [2022-01-10 15:51:55,613 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 555 transitions. Word has length 38 [2022-01-10 15:51:55,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:55,613 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 555 transitions. [2022-01-10 15:51:55,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 555 transitions. [2022-01-10 15:51:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 15:51:55,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:55,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:55,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 15:51:55,614 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:55,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:55,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2094314508, now seen corresponding path program 1 times [2022-01-10 15:51:55,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:55,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284828704] [2022-01-10 15:51:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:55,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:55,672 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 15:51:55,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:55,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284828704] [2022-01-10 15:51:55,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284828704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:55,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:55,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 15:51:55,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4430441] [2022-01-10 15:51:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:55,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 15:51:55,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 15:51:55,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 15:51:55,674 INFO L87 Difference]: Start difference. First operand 441 states and 555 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:55,898 INFO L93 Difference]: Finished difference Result 690 states and 861 transitions. [2022-01-10 15:51:55,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 15:51:55,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 15:51:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:55,901 INFO L225 Difference]: With dead ends: 690 [2022-01-10 15:51:55,901 INFO L226 Difference]: Without dead ends: 673 [2022-01-10 15:51:55,911 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 15:51:55,912 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 351 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:55,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 2090 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:55,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-01-10 15:51:55,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 440. [2022-01-10 15:51:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 435 states have (on average 1.271264367816092) internal successors, (553), 439 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 553 transitions. [2022-01-10 15:51:55,948 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 553 transitions. Word has length 38 [2022-01-10 15:51:55,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:55,949 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 553 transitions. [2022-01-10 15:51:55,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 553 transitions. [2022-01-10 15:51:55,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 15:51:55,949 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:55,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:55,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 15:51:55,949 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:55,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -855006087, now seen corresponding path program 1 times [2022-01-10 15:51:55,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:55,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389847624] [2022-01-10 15:51:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:55,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:56,018 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 15:51:56,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:56,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389847624] [2022-01-10 15:51:56,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389847624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:56,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:56,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:56,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062735645] [2022-01-10 15:51:56,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:56,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:56,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:56,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:56,019 INFO L87 Difference]: Start difference. First operand 440 states and 553 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:56,124 INFO L93 Difference]: Finished difference Result 623 states and 788 transitions. [2022-01-10 15:51:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:56,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 15:51:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:56,125 INFO L225 Difference]: With dead ends: 623 [2022-01-10 15:51:56,125 INFO L226 Difference]: Without dead ends: 440 [2022-01-10 15:51:56,126 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 15:51:56,126 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 389 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:56,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 627 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:56,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-01-10 15:51:56,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2022-01-10 15:51:56,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 435 states have (on average 1.257471264367816) internal successors, (547), 439 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 547 transitions. [2022-01-10 15:51:56,160 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 547 transitions. Word has length 38 [2022-01-10 15:51:56,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:56,161 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 547 transitions. [2022-01-10 15:51:56,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:56,161 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 547 transitions. [2022-01-10 15:51:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 15:51:56,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:56,161 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 15:51:56,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 15:51:56,162 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:56,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1268249025, now seen corresponding path program 1 times [2022-01-10 15:51:56,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:56,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621565442] [2022-01-10 15:51:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:56,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:56,213 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 15:51:56,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:56,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621565442] [2022-01-10 15:51:56,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621565442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:56,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:56,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 15:51:56,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886515217] [2022-01-10 15:51:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:56,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 15:51:56,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:56,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 15:51:56,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 15:51:56,215 INFO L87 Difference]: Start difference. First operand 440 states and 547 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 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 15:51:56,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:56,372 INFO L93 Difference]: Finished difference Result 451 states and 557 transitions. [2022-01-10 15:51:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 15:51:56,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 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 15:51:56,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:56,374 INFO L225 Difference]: With dead ends: 451 [2022-01-10 15:51:56,374 INFO L226 Difference]: Without dead ends: 427 [2022-01-10 15:51:56,374 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 15:51:56,374 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 334 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:56,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1451 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-01-10 15:51:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2022-01-10 15:51:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.2606635071090047) internal successors, (532), 426 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 532 transitions. [2022-01-10 15:51:56,431 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 532 transitions. Word has length 39 [2022-01-10 15:51:56,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:56,431 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 532 transitions. [2022-01-10 15:51:56,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 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 15:51:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 532 transitions. [2022-01-10 15:51:56,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 15:51:56,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:56,432 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 15:51:56,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 15:51:56,432 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:56,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1409297873, now seen corresponding path program 1 times [2022-01-10 15:51:56,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:56,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756863951] [2022-01-10 15:51:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:56,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:56,464 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 15:51:56,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:56,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756863951] [2022-01-10 15:51:56,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756863951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:56,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:56,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:56,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453973290] [2022-01-10 15:51:56,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:56,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:56,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:56,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:56,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:56,465 INFO L87 Difference]: Start difference. First operand 427 states and 532 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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 15:51:56,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:56,583 INFO L93 Difference]: Finished difference Result 773 states and 962 transitions. [2022-01-10 15:51:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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 15:51:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:56,585 INFO L225 Difference]: With dead ends: 773 [2022-01-10 15:51:56,585 INFO L226 Difference]: Without dead ends: 590 [2022-01-10 15:51:56,585 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 15:51:56,586 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 169 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:56,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 853 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:56,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-01-10 15:51:56,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 427. [2022-01-10 15:51:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.2606635071090047) internal successors, (532), 426 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:56,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 532 transitions. [2022-01-10 15:51:56,620 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 532 transitions. Word has length 41 [2022-01-10 15:51:56,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:56,620 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 532 transitions. [2022-01-10 15:51:56,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 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 15:51:56,620 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 532 transitions. [2022-01-10 15:51:56,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 15:51:56,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:56,621 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 15:51:56,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 15:51:56,621 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -584166991, now seen corresponding path program 1 times [2022-01-10 15:51:56,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:56,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266750315] [2022-01-10 15:51:56,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:56,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:56,697 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 15:51:56,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:56,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266750315] [2022-01-10 15:51:56,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266750315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:56,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:56,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 15:51:56,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049493493] [2022-01-10 15:51:56,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:56,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 15:51:56,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:56,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 15:51:56,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 15:51:56,698 INFO L87 Difference]: Start difference. First operand 427 states and 532 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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 15:51:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:56,866 INFO L93 Difference]: Finished difference Result 721 states and 895 transitions. [2022-01-10 15:51:56,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 15:51:56,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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 15:51:56,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:56,868 INFO L225 Difference]: With dead ends: 721 [2022-01-10 15:51:56,868 INFO L226 Difference]: Without dead ends: 563 [2022-01-10 15:51:56,868 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 15:51:56,869 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 337 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1671 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 15:51:56,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1671 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:56,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-01-10 15:51:56,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 427. [2022-01-10 15:51:56,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.2511848341232228) internal successors, (528), 426 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:56,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 528 transitions. [2022-01-10 15:51:56,908 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 528 transitions. Word has length 41 [2022-01-10 15:51:56,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:56,908 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 528 transitions. [2022-01-10 15:51:56,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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 15:51:56,908 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 528 transitions. [2022-01-10 15:51:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 15:51:56,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:56,909 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] [2022-01-10 15:51:56,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 15:51:56,909 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:56,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:56,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1147380683, now seen corresponding path program 1 times [2022-01-10 15:51:56,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:56,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896590114] [2022-01-10 15:51:56,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:56,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:56,971 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 15:51:56,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:56,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896590114] [2022-01-10 15:51:56,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896590114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:56,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:56,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 15:51:56,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154086187] [2022-01-10 15:51:56,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:56,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 15:51:56,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 15:51:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-10 15:51:56,972 INFO L87 Difference]: Start difference. First operand 427 states and 528 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:57,211 INFO L93 Difference]: Finished difference Result 609 states and 741 transitions. [2022-01-10 15:51:57,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 15:51:57,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-01-10 15:51:57,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:57,212 INFO L225 Difference]: With dead ends: 609 [2022-01-10 15:51:57,212 INFO L226 Difference]: Without dead ends: 521 [2022-01-10 15:51:57,213 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 15:51:57,213 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 403 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:57,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 2367 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-01-10 15:51:57,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 427. [2022-01-10 15:51:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.2369668246445498) internal successors, (522), 426 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 522 transitions. [2022-01-10 15:51:57,249 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 522 transitions. Word has length 43 [2022-01-10 15:51:57,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:57,249 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 522 transitions. [2022-01-10 15:51:57,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 522 transitions. [2022-01-10 15:51:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 15:51:57,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:57,250 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 15:51:57,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 15:51:57,250 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash -16396555, now seen corresponding path program 1 times [2022-01-10 15:51:57,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:57,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363314887] [2022-01-10 15:51:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:57,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:57,306 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 15:51:57,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:57,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363314887] [2022-01-10 15:51:57,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363314887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:57,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:57,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 15:51:57,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578478083] [2022-01-10 15:51:57,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:57,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 15:51:57,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:57,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 15:51:57,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 15:51:57,307 INFO L87 Difference]: Start difference. First operand 427 states and 522 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 15:51:57,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:57,482 INFO L93 Difference]: Finished difference Result 877 states and 1085 transitions. [2022-01-10 15:51:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 15:51:57,482 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 15:51:57,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:57,484 INFO L225 Difference]: With dead ends: 877 [2022-01-10 15:51:57,484 INFO L226 Difference]: Without dead ends: 746 [2022-01-10 15:51:57,484 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 15:51:57,485 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 537 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1894 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 15:51:57,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 1894 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:57,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-01-10 15:51:57,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 427. [2022-01-10 15:51:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.2345971563981042) internal successors, (521), 426 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 521 transitions. [2022-01-10 15:51:57,540 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 521 transitions. Word has length 44 [2022-01-10 15:51:57,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:57,540 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 521 transitions. [2022-01-10 15:51:57,540 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 15:51:57,540 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 521 transitions. [2022-01-10 15:51:57,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 15:51:57,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:57,542 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 15:51:57,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 15:51:57,543 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:57,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:57,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1730943438, now seen corresponding path program 1 times [2022-01-10 15:51:57,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:57,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778854026] [2022-01-10 15:51:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:57,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:57,600 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 15:51:57,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:57,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778854026] [2022-01-10 15:51:57,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778854026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:57,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:57,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 15:51:57,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478754497] [2022-01-10 15:51:57,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:57,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 15:51:57,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:57,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 15:51:57,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 15:51:57,601 INFO L87 Difference]: Start difference. First operand 427 states and 521 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 15:51:57,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:57,786 INFO L93 Difference]: Finished difference Result 446 states and 540 transitions. [2022-01-10 15:51:57,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 15:51:57,786 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 15:51:57,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:57,787 INFO L225 Difference]: With dead ends: 446 [2022-01-10 15:51:57,787 INFO L226 Difference]: Without dead ends: 283 [2022-01-10 15:51:57,787 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 15:51:57,788 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 420 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:57,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 1619 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:57,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-01-10 15:51:57,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 264. [2022-01-10 15:51:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 260 states have (on average 1.2461538461538462) internal successors, (324), 263 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 324 transitions. [2022-01-10 15:51:57,814 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 324 transitions. Word has length 44 [2022-01-10 15:51:57,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:57,814 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 324 transitions. [2022-01-10 15:51:57,815 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 15:51:57,815 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 324 transitions. [2022-01-10 15:51:57,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 15:51:57,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:57,815 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] [2022-01-10 15:51:57,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 15:51:57,815 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:57,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash 837832206, now seen corresponding path program 1 times [2022-01-10 15:51:57,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:57,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074459076] [2022-01-10 15:51:57,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:57,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:51:57,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:57,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074459076] [2022-01-10 15:51:57,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074459076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:57,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:57,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:57,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047557876] [2022-01-10 15:51:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:57,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:57,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:57,848 INFO L87 Difference]: Start difference. First operand 264 states and 324 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:57,902 INFO L93 Difference]: Finished difference Result 399 states and 496 transitions. [2022-01-10 15:51:57,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:57,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-10 15:51:57,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:57,903 INFO L225 Difference]: With dead ends: 399 [2022-01-10 15:51:57,903 INFO L226 Difference]: Without dead ends: 226 [2022-01-10 15:51:57,904 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 15:51:57,904 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 55 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:57,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 422 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-01-10 15:51:57,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-01-10 15:51:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.2276785714285714) internal successors, (275), 225 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 275 transitions. [2022-01-10 15:51:57,927 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 275 transitions. Word has length 48 [2022-01-10 15:51:57,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:57,927 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 275 transitions. [2022-01-10 15:51:57,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:57,927 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 275 transitions. [2022-01-10 15:51:57,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 15:51:57,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:57,927 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] [2022-01-10 15:51:57,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 15:51:57,928 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:57,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:57,928 INFO L85 PathProgramCache]: Analyzing trace with hash 29504374, now seen corresponding path program 1 times [2022-01-10 15:51:57,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:57,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296245652] [2022-01-10 15:51:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:57,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:57,974 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 15:51:57,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:57,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296245652] [2022-01-10 15:51:57,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296245652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:57,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:57,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 15:51:57,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182425475] [2022-01-10 15:51:57,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:57,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 15:51:57,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:57,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 15:51:57,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 15:51:57,975 INFO L87 Difference]: Start difference. First operand 226 states and 275 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:58,081 INFO L93 Difference]: Finished difference Result 339 states and 411 transitions. [2022-01-10 15:51:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 15:51:58,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 15:51:58,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:58,083 INFO L225 Difference]: With dead ends: 339 [2022-01-10 15:51:58,083 INFO L226 Difference]: Without dead ends: 320 [2022-01-10 15:51:58,083 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 15:51:58,083 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 297 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:58,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 1612 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:58,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-01-10 15:51:58,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 220. [2022-01-10 15:51:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.2293577981651376) internal successors, (268), 219 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 15:51:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 268 transitions. [2022-01-10 15:51:58,115 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 268 transitions. Word has length 56 [2022-01-10 15:51:58,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:58,115 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 268 transitions. [2022-01-10 15:51:58,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 268 transitions. [2022-01-10 15:51:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 15:51:58,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:58,116 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 15:51:58,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 15:51:58,116 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:58,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:58,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1421912672, now seen corresponding path program 1 times [2022-01-10 15:51:58,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:58,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723439435] [2022-01-10 15:51:58,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:58,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:58,171 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 15:51:58,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:58,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723439435] [2022-01-10 15:51:58,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723439435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:58,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:58,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 15:51:58,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810761961] [2022-01-10 15:51:58,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:58,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 15:51:58,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:58,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 15:51:58,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 15:51:58,173 INFO L87 Difference]: Start difference. First operand 220 states and 268 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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 15:51:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:58,265 INFO L93 Difference]: Finished difference Result 286 states and 348 transitions. [2022-01-10 15:51:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 15:51:58,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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 15:51:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:58,267 INFO L225 Difference]: With dead ends: 286 [2022-01-10 15:51:58,267 INFO L226 Difference]: Without dead ends: 220 [2022-01-10 15:51:58,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 15:51:58,267 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 73 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1394 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 15:51:58,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 1394 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-01-10 15:51:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-01-10 15:51:58,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.224770642201835) internal successors, (267), 219 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 267 transitions. [2022-01-10 15:51:58,290 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 267 transitions. Word has length 59 [2022-01-10 15:51:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:58,290 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 267 transitions. [2022-01-10 15:51:58,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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 15:51:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 267 transitions. [2022-01-10 15:51:58,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 15:51:58,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:58,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:58,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 15:51:58,290 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:58,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:58,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2144914143, now seen corresponding path program 1 times [2022-01-10 15:51:58,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:58,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574605696] [2022-01-10 15:51:58,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:58,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:58,334 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 15:51:58,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:58,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574605696] [2022-01-10 15:51:58,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574605696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:58,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:58,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:58,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90792907] [2022-01-10 15:51:58,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:58,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:58,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:58,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:58,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:58,335 INFO L87 Difference]: Start difference. First operand 220 states and 267 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:58,368 INFO L93 Difference]: Finished difference Result 338 states and 417 transitions. [2022-01-10 15:51:58,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:58,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 15:51:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:58,369 INFO L225 Difference]: With dead ends: 338 [2022-01-10 15:51:58,369 INFO L226 Difference]: Without dead ends: 219 [2022-01-10 15:51:58,370 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 15:51:58,370 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 1 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:58,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 613 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:58,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-01-10 15:51:58,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-01-10 15:51:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 217 states have (on average 1.2211981566820276) internal successors, (265), 218 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 265 transitions. [2022-01-10 15:51:58,392 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 265 transitions. Word has length 60 [2022-01-10 15:51:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:58,392 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 265 transitions. [2022-01-10 15:51:58,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 265 transitions. [2022-01-10 15:51:58,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 15:51:58,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:58,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:58,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 15:51:58,393 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:58,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:58,394 INFO L85 PathProgramCache]: Analyzing trace with hash -103863617, now seen corresponding path program 1 times [2022-01-10 15:51:58,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:58,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477863542] [2022-01-10 15:51:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:58,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:58,479 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 15:51:58,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:58,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477863542] [2022-01-10 15:51:58,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477863542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:58,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:58,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 15:51:58,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557434151] [2022-01-10 15:51:58,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:58,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 15:51:58,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:58,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 15:51:58,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 15:51:58,480 INFO L87 Difference]: Start difference. First operand 219 states and 265 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:58,651 INFO L93 Difference]: Finished difference Result 372 states and 441 transitions. [2022-01-10 15:51:58,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 15:51:58,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 15:51:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:58,652 INFO L225 Difference]: With dead ends: 372 [2022-01-10 15:51:58,652 INFO L226 Difference]: Without dead ends: 350 [2022-01-10 15:51:58,652 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 15:51:58,653 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 514 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1578 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 15:51:58,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 1578 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:51:58,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-01-10 15:51:58,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 222. [2022-01-10 15:51:58,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.2181818181818183) internal successors, (268), 221 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 15:51:58,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 268 transitions. [2022-01-10 15:51:58,703 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 268 transitions. Word has length 60 [2022-01-10 15:51:58,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:58,703 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 268 transitions. [2022-01-10 15:51:58,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,703 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 268 transitions. [2022-01-10 15:51:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 15:51:58,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:58,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:51:58,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 15:51:58,704 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:58,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:58,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1628582665, now seen corresponding path program 1 times [2022-01-10 15:51:58,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:58,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817192784] [2022-01-10 15:51:58,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:58,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:58,741 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 15:51:58,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:58,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817192784] [2022-01-10 15:51:58,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817192784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:58,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:58,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:58,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835000428] [2022-01-10 15:51:58,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:58,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:58,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:58,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:58,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:58,744 INFO L87 Difference]: Start difference. First operand 222 states and 268 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:58,799 INFO L93 Difference]: Finished difference Result 413 states and 507 transitions. [2022-01-10 15:51:58,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:58,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 15:51:58,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:58,801 INFO L225 Difference]: With dead ends: 413 [2022-01-10 15:51:58,801 INFO L226 Difference]: Without dead ends: 276 [2022-01-10 15:51:58,801 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 15:51:58,801 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 132 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 347 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 15:51:58,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 347 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-01-10 15:51:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 222. [2022-01-10 15:51:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.209090909090909) internal successors, (266), 221 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 266 transitions. [2022-01-10 15:51:58,833 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 266 transitions. Word has length 61 [2022-01-10 15:51:58,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:58,834 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 266 transitions. [2022-01-10 15:51:58,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 266 transitions. [2022-01-10 15:51:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 15:51:58,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:58,834 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] [2022-01-10 15:51:58,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 15:51:58,835 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:58,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1327203035, now seen corresponding path program 1 times [2022-01-10 15:51:58,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:58,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55852863] [2022-01-10 15:51:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:58,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:58,883 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 15:51:58,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:58,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55852863] [2022-01-10 15:51:58,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55852863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:58,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:58,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 15:51:58,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014454965] [2022-01-10 15:51:58,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:58,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 15:51:58,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:58,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 15:51:58,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 15:51:58,884 INFO L87 Difference]: Start difference. First operand 222 states and 266 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 15:51:58,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:58,973 INFO L93 Difference]: Finished difference Result 393 states and 477 transitions. [2022-01-10 15:51:58,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 15:51:58,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 15:51:58,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:58,974 INFO L225 Difference]: With dead ends: 393 [2022-01-10 15:51:58,974 INFO L226 Difference]: Without dead ends: 325 [2022-01-10 15:51:58,975 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 15:51:58,975 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 534 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 862 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 15:51:58,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 862 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:58,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-01-10 15:51:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 176. [2022-01-10 15:51:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.2298850574712643) internal successors, (214), 175 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 214 transitions. [2022-01-10 15:51:58,999 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 214 transitions. Word has length 62 [2022-01-10 15:51:58,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:58,999 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 214 transitions. [2022-01-10 15:51:58,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 15:51:58,999 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 214 transitions. [2022-01-10 15:51:58,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 15:51:58,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:58,999 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 15:51:59,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 15:51:59,000 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:59,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:59,000 INFO L85 PathProgramCache]: Analyzing trace with hash -885890233, now seen corresponding path program 1 times [2022-01-10 15:51:59,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:59,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462575297] [2022-01-10 15:51:59,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:59,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:59,067 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 15:51:59,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:59,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462575297] [2022-01-10 15:51:59,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462575297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:59,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:59,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:51:59,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424576171] [2022-01-10 15:51:59,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:59,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:51:59,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:59,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:51:59,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:51:59,068 INFO L87 Difference]: Start difference. First operand 176 states and 214 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 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 15:51:59,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:59,115 INFO L93 Difference]: Finished difference Result 250 states and 298 transitions. [2022-01-10 15:51:59,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:51:59,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 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 15:51:59,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:59,116 INFO L225 Difference]: With dead ends: 250 [2022-01-10 15:51:59,116 INFO L226 Difference]: Without dead ends: 226 [2022-01-10 15:51:59,117 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 15:51:59,118 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 82 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 466 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 15:51:59,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 466 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:59,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-01-10 15:51:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 177. [2022-01-10 15:51:59,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.2285714285714286) internal successors, (215), 176 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 215 transitions. [2022-01-10 15:51:59,141 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 215 transitions. Word has length 65 [2022-01-10 15:51:59,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:59,141 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 215 transitions. [2022-01-10 15:51:59,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 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 15:51:59,142 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 215 transitions. [2022-01-10 15:51:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 15:51:59,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:59,143 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] [2022-01-10 15:51:59,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 15:51:59,143 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:59,143 INFO L85 PathProgramCache]: Analyzing trace with hash -498425176, now seen corresponding path program 1 times [2022-01-10 15:51:59,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:59,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239396551] [2022-01-10 15:51:59,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:59,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:59,188 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 15:51:59,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:59,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239396551] [2022-01-10 15:51:59,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239396551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:59,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:59,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 15:51:59,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019252127] [2022-01-10 15:51:59,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:59,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 15:51:59,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:59,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 15:51:59,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 15:51:59,190 INFO L87 Difference]: Start difference. First operand 177 states and 215 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:59,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:59,253 INFO L93 Difference]: Finished difference Result 238 states and 281 transitions. [2022-01-10 15:51:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 15:51:59,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-01-10 15:51:59,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:59,254 INFO L225 Difference]: With dead ends: 238 [2022-01-10 15:51:59,255 INFO L226 Difference]: Without dead ends: 214 [2022-01-10 15:51:59,255 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 15:51:59,255 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 52 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 293 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 15:51:59,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 293 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:59,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-10 15:51:59,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 179. [2022-01-10 15:51:59,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.231638418079096) internal successors, (218), 178 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 15:51:59,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 218 transitions. [2022-01-10 15:51:59,281 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 218 transitions. Word has length 70 [2022-01-10 15:51:59,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:59,281 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 218 transitions. [2022-01-10 15:51:59,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:59,281 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 218 transitions. [2022-01-10 15:51:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 15:51:59,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:59,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:51:59,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 15:51:59,282 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1204440902, now seen corresponding path program 1 times [2022-01-10 15:51:59,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:59,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218894719] [2022-01-10 15:51:59,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:59,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:59,382 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 15:51:59,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:59,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218894719] [2022-01-10 15:51:59,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218894719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:59,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:59,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 15:51:59,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753018719] [2022-01-10 15:51:59,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:59,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 15:51:59,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:59,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 15:51:59,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 15:51:59,384 INFO L87 Difference]: Start difference. First operand 179 states and 218 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:59,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:59,469 INFO L93 Difference]: Finished difference Result 264 states and 319 transitions. [2022-01-10 15:51:59,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 15:51:59,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-10 15:51:59,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:59,471 INFO L225 Difference]: With dead ends: 264 [2022-01-10 15:51:59,471 INFO L226 Difference]: Without dead ends: 210 [2022-01-10 15:51:59,471 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 15:51:59,471 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 185 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 738 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 15:51:59,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 738 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-01-10 15:51:59,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 143. [2022-01-10 15:51:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.1830985915492958) internal successors, (168), 142 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2022-01-10 15:51:59,493 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 72 [2022-01-10 15:51:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:59,493 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2022-01-10 15:51:59,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2022-01-10 15:51:59,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 15:51:59,494 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:59,494 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 15:51:59,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 15:51:59,494 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:59,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:59,495 INFO L85 PathProgramCache]: Analyzing trace with hash 529735796, now seen corresponding path program 1 times [2022-01-10 15:51:59,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:59,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508281031] [2022-01-10 15:51:59,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:59,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:59,558 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 15:51:59,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:59,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508281031] [2022-01-10 15:51:59,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508281031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:59,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:59,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 15:51:59,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550609223] [2022-01-10 15:51:59,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:59,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 15:51:59,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:59,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 15:51:59,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 15:51:59,559 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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 15:51:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:51:59,710 INFO L93 Difference]: Finished difference Result 396 states and 467 transitions. [2022-01-10 15:51:59,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 15:51:59,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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 15:51:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:51:59,711 INFO L225 Difference]: With dead ends: 396 [2022-01-10 15:51:59,711 INFO L226 Difference]: Without dead ends: 376 [2022-01-10 15:51:59,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-10 15:51:59,712 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 588 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:51:59,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 1113 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:51:59,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-01-10 15:51:59,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 152. [2022-01-10 15:51:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.1788079470198676) internal successors, (178), 151 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:51:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 178 transitions. [2022-01-10 15:51:59,735 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 178 transitions. Word has length 75 [2022-01-10 15:51:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:51:59,735 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 178 transitions. [2022-01-10 15:51:59,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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 15:51:59,735 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 178 transitions. [2022-01-10 15:51:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 15:51:59,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:51:59,736 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] [2022-01-10 15:51:59,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 15:51:59,736 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:51:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:51:59,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1062081759, now seen corresponding path program 1 times [2022-01-10 15:51:59,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:51:59,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37979840] [2022-01-10 15:51:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:51:59,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:51:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:51:59,834 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 15:51:59,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:51:59,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37979840] [2022-01-10 15:51:59,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37979840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:51:59,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:51:59,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 15:51:59,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895849326] [2022-01-10 15:51:59,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:51:59,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 15:51:59,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:51:59,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 15:51:59,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 15:51:59,835 INFO L87 Difference]: Start difference. First operand 152 states and 178 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:00,139 INFO L93 Difference]: Finished difference Result 362 states and 429 transitions. [2022-01-10 15:52:00,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 15:52:00,139 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-10 15:52:00,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:00,140 INFO L225 Difference]: With dead ends: 362 [2022-01-10 15:52:00,140 INFO L226 Difference]: Without dead ends: 290 [2022-01-10 15:52:00,140 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 15:52:00,140 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 391 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 15:52:00,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 2517 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:52:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-01-10 15:52:00,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 152. [2022-01-10 15:52:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.1721854304635762) internal successors, (177), 151 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 177 transitions. [2022-01-10 15:52:00,165 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 177 transitions. Word has length 76 [2022-01-10 15:52:00,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:00,165 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 177 transitions. [2022-01-10 15:52:00,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 177 transitions. [2022-01-10 15:52:00,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 15:52:00,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:00,166 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] [2022-01-10 15:52:00,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 15:52:00,166 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:00,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:00,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2143580741, now seen corresponding path program 1 times [2022-01-10 15:52:00,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:00,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126149373] [2022-01-10 15:52:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:00,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:00,244 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 15:52:00,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:00,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126149373] [2022-01-10 15:52:00,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126149373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:00,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:00,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 15:52:00,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906012808] [2022-01-10 15:52:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:00,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 15:52:00,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:00,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 15:52:00,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 15:52:00,246 INFO L87 Difference]: Start difference. First operand 152 states and 177 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:00,408 INFO L93 Difference]: Finished difference Result 396 states and 464 transitions. [2022-01-10 15:52:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 15:52:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 15:52:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:00,410 INFO L225 Difference]: With dead ends: 396 [2022-01-10 15:52:00,410 INFO L226 Difference]: Without dead ends: 274 [2022-01-10 15:52:00,410 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 15:52:00,410 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 224 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1584 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 15:52:00,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 1584 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:52:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-01-10 15:52:00,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 219. [2022-01-10 15:52:00,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.1422018348623852) internal successors, (249), 218 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 249 transitions. [2022-01-10 15:52:00,440 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 249 transitions. Word has length 81 [2022-01-10 15:52:00,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:00,440 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 249 transitions. [2022-01-10 15:52:00,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,440 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 249 transitions. [2022-01-10 15:52:00,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 15:52:00,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:00,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:52:00,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 15:52:00,441 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash -2137853754, now seen corresponding path program 1 times [2022-01-10 15:52:00,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:00,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166966087] [2022-01-10 15:52:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:00,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:00,499 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 15:52:00,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:00,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166966087] [2022-01-10 15:52:00,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166966087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:00,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:00,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 15:52:00,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696435536] [2022-01-10 15:52:00,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:00,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 15:52:00,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:00,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 15:52:00,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 15:52:00,500 INFO L87 Difference]: Start difference. First operand 219 states and 249 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:00,651 INFO L93 Difference]: Finished difference Result 407 states and 473 transitions. [2022-01-10 15:52:00,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 15:52:00,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 15:52:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:00,652 INFO L225 Difference]: With dead ends: 407 [2022-01-10 15:52:00,652 INFO L226 Difference]: Without dead ends: 387 [2022-01-10 15:52:00,652 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 15:52:00,652 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 322 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:52:00,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 1398 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:52:00,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-01-10 15:52:00,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 216. [2022-01-10 15:52:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.1395348837209303) internal successors, (245), 215 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 245 transitions. [2022-01-10 15:52:00,683 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 245 transitions. Word has length 81 [2022-01-10 15:52:00,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:00,683 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 245 transitions. [2022-01-10 15:52:00,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 245 transitions. [2022-01-10 15:52:00,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 15:52:00,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:00,684 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] [2022-01-10 15:52:00,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-10 15:52:00,684 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:00,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:00,684 INFO L85 PathProgramCache]: Analyzing trace with hash -912235153, now seen corresponding path program 1 times [2022-01-10 15:52:00,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:00,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698353779] [2022-01-10 15:52:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:00,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:00,746 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 15:52:00,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:00,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698353779] [2022-01-10 15:52:00,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698353779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:00,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:00,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 15:52:00,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171597788] [2022-01-10 15:52:00,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:00,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 15:52:00,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:00,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 15:52:00,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 15:52:00,748 INFO L87 Difference]: Start difference. First operand 216 states and 245 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:00,849 INFO L93 Difference]: Finished difference Result 249 states and 282 transitions. [2022-01-10 15:52:00,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 15:52:00,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-10 15:52:00,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:00,851 INFO L225 Difference]: With dead ends: 249 [2022-01-10 15:52:00,851 INFO L226 Difference]: Without dead ends: 214 [2022-01-10 15:52:00,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 15:52:00,852 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 401 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 747 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 15:52:00,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 747 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:52:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-10 15:52:00,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-01-10 15:52:00,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.1314553990610328) internal successors, (241), 213 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 241 transitions. [2022-01-10 15:52:00,907 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 241 transitions. Word has length 87 [2022-01-10 15:52:00,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:00,908 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 241 transitions. [2022-01-10 15:52:00,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 241 transitions. [2022-01-10 15:52:00,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 15:52:00,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:00,908 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] [2022-01-10 15:52:00,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-10 15:52:00,909 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:00,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:00,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1662258799, now seen corresponding path program 1 times [2022-01-10 15:52:00,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:00,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055554377] [2022-01-10 15:52:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:00,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:00,968 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 15:52:00,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:00,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055554377] [2022-01-10 15:52:00,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055554377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:00,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:00,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:52:00,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022695442] [2022-01-10 15:52:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:00,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:52:00,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:00,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:52:00,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:52:00,970 INFO L87 Difference]: Start difference. First operand 214 states and 241 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:01,022 INFO L93 Difference]: Finished difference Result 290 states and 330 transitions. [2022-01-10 15:52:01,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:52:01,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-10 15:52:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:01,023 INFO L225 Difference]: With dead ends: 290 [2022-01-10 15:52:01,023 INFO L226 Difference]: Without dead ends: 249 [2022-01-10 15:52:01,024 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 15:52:01,024 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 77 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 463 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 15:52:01,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 463 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:52:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-01-10 15:52:01,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 216. [2022-01-10 15:52:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.130232558139535) internal successors, (243), 215 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 243 transitions. [2022-01-10 15:52:01,053 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 243 transitions. Word has length 87 [2022-01-10 15:52:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:01,053 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 243 transitions. [2022-01-10 15:52:01,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 243 transitions. [2022-01-10 15:52:01,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 15:52:01,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:01,056 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] [2022-01-10 15:52:01,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-10 15:52:01,057 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:01,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:01,057 INFO L85 PathProgramCache]: Analyzing trace with hash -383930737, now seen corresponding path program 1 times [2022-01-10 15:52:01,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:01,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707556240] [2022-01-10 15:52:01,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:01,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:01,125 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 15:52:01,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:01,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707556240] [2022-01-10 15:52:01,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707556240] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:01,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:01,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 15:52:01,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512211098] [2022-01-10 15:52:01,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:01,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 15:52:01,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:01,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 15:52:01,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 15:52:01,126 INFO L87 Difference]: Start difference. First operand 216 states and 243 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:01,240 INFO L93 Difference]: Finished difference Result 272 states and 305 transitions. [2022-01-10 15:52:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 15:52:01,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-10 15:52:01,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:01,241 INFO L225 Difference]: With dead ends: 272 [2022-01-10 15:52:01,241 INFO L226 Difference]: Without dead ends: 220 [2022-01-10 15:52:01,242 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 15:52:01,242 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 81 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1026 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 15:52:01,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 1026 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:52:01,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-01-10 15:52:01,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2022-01-10 15:52:01,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.1168224299065421) internal successors, (239), 214 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 239 transitions. [2022-01-10 15:52:01,280 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 239 transitions. Word has length 87 [2022-01-10 15:52:01,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:01,280 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 239 transitions. [2022-01-10 15:52:01,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,281 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 239 transitions. [2022-01-10 15:52:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 15:52:01,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:01,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:52:01,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-10 15:52:01,281 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:01,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:01,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1716252198, now seen corresponding path program 1 times [2022-01-10 15:52:01,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:01,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802317116] [2022-01-10 15:52:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:01,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:01,381 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 15:52:01,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:01,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802317116] [2022-01-10 15:52:01,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802317116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:01,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:01,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 15:52:01,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184837654] [2022-01-10 15:52:01,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:01,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 15:52:01,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:01,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 15:52:01,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-10 15:52:01,383 INFO L87 Difference]: Start difference. First operand 215 states and 239 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:01,674 INFO L93 Difference]: Finished difference Result 480 states and 538 transitions. [2022-01-10 15:52:01,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 15:52:01,675 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 15:52:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:01,676 INFO L225 Difference]: With dead ends: 480 [2022-01-10 15:52:01,676 INFO L226 Difference]: Without dead ends: 447 [2022-01-10 15:52:01,677 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 15:52:01,677 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 1414 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 1100 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 15:52:01,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1414 Valid, 1100 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 15:52:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-01-10 15:52:01,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 222. [2022-01-10 15:52:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.1221719457013575) internal successors, (248), 221 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 15:52:01,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 248 transitions. [2022-01-10 15:52:01,709 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 248 transitions. Word has length 88 [2022-01-10 15:52:01,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:01,709 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 248 transitions. [2022-01-10 15:52:01,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 248 transitions. [2022-01-10 15:52:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 15:52:01,710 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:01,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:52:01,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-10 15:52:01,710 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:01,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2089692790, now seen corresponding path program 1 times [2022-01-10 15:52:01,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:01,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460528078] [2022-01-10 15:52:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:01,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:01,777 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 15:52:01,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:01,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460528078] [2022-01-10 15:52:01,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460528078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:01,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:01,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 15:52:01,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041017899] [2022-01-10 15:52:01,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:01,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 15:52:01,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:01,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 15:52:01,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 15:52:01,779 INFO L87 Difference]: Start difference. First operand 222 states and 248 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:01,874 INFO L93 Difference]: Finished difference Result 255 states and 285 transitions. [2022-01-10 15:52:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 15:52:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 15:52:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:01,875 INFO L225 Difference]: With dead ends: 255 [2022-01-10 15:52:01,875 INFO L226 Difference]: Without dead ends: 139 [2022-01-10 15:52:01,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 15:52:01,876 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 391 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 722 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 15:52:01,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 722 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:52:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-01-10 15:52:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 133. [2022-01-10 15:52:01,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.121212121212121) internal successors, (148), 132 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 148 transitions. [2022-01-10 15:52:01,896 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 148 transitions. Word has length 92 [2022-01-10 15:52:01,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:01,896 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 148 transitions. [2022-01-10 15:52:01,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:01,896 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2022-01-10 15:52:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 15:52:01,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:52:01,897 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] [2022-01-10 15:52:01,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-10 15:52:01,897 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2022-01-10 15:52:01,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:52:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1678715192, now seen corresponding path program 1 times [2022-01-10 15:52:01,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:52:01,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749110814] [2022-01-10 15:52:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:52:01,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:52:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:52:01,983 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 15:52:01,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:52:01,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749110814] [2022-01-10 15:52:01,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749110814] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:52:01,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:52:01,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 15:52:01,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131463519] [2022-01-10 15:52:01,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:52:01,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 15:52:01,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:52:01,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 15:52:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 15:52:01,984 INFO L87 Difference]: Start difference. First operand 133 states and 148 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:02,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:52:02,134 INFO L93 Difference]: Finished difference Result 174 states and 193 transitions. [2022-01-10 15:52:02,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 15:52:02,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 15:52:02,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:52:02,135 INFO L225 Difference]: With dead ends: 174 [2022-01-10 15:52:02,135 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 15:52:02,135 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 15:52:02,136 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 490 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 788 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 15:52:02,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 788 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:52:02,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 15:52:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 15:52:02,136 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 15:52:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 15:52:02,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2022-01-10 15:52:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:52:02,136 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 15:52:02,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:52:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 15:52:02,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 15:52:02,138 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (39 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (38 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (37 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (36 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (35 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (34 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (33 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (32 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (31 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (30 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (29 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (28 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (27 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (26 of 40 remaining) [2022-01-10 15:52:02,139 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (25 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (24 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (23 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (22 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (21 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (20 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (19 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (18 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (17 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (16 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (15 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (14 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (13 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (12 of 40 remaining) [2022-01-10 15:52:02,140 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (11 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (10 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (9 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (8 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (7 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (6 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (5 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (4 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (3 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (2 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (1 of 40 remaining) [2022-01-10 15:52:02,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (0 of 40 remaining) [2022-01-10 15:52:02,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-10 15:52:02,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.