/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_SUM.epf -i ../../../trunk/examples/svcomp/ntdrivers/kbfiltr.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:30:52,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:30:52,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:30:52,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 03:30:52,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 03:30:52,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 03:30:52,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 03:30:52,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 03:30:52,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 03:30:52,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 03:30:52,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 03:30:52,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 03:30:52,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:30:52,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:30:52,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:30:52,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:30:52,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:30:52,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:30:52,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:30:52,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:30:52,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:30:52,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:30:52,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:30:52,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:30:52,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 03:30:52,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 03:30:52,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 03:30:52,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 03:30:52,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 03:30:52,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 03:30:52,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 03:30:52,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 03:30:52,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 03:30:52,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 03:30:52,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 03:30:52,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 03:30:52,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 03:30:52,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 03:30:52,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:30:52,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:30:52,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:30:52,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 03:30:52,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:30:52,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:30:52,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:30:52,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:30:52,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:30:52,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:30:52,219 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:30:52,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:30:52,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:30:52,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:30:52,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:30:52,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:30:52,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:30:52,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:30:52,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:30:52,222 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:30:52,222 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:30:52,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:30:52,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:30:52,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:30:52,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:30:52,446 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:30:52,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers/kbfiltr.i.cil-2.c [2022-01-11 03:30:52,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e4e8721/bc59bf09eba146d892e6a24e69803d61/FLAGc70c2338d [2022-01-11 03:30:52,968 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:30:52,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/kbfiltr.i.cil-2.c [2022-01-11 03:30:53,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e4e8721/bc59bf09eba146d892e6a24e69803d61/FLAGc70c2338d [2022-01-11 03:30:53,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e4e8721/bc59bf09eba146d892e6a24e69803d61 [2022-01-11 03:30:53,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:30:53,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:30:53,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:30:53,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:30:53,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:30:53,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:30:53" (1/1) ... [2022-01-11 03:30:53,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6736f25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:53, skipping insertion in model container [2022-01-11 03:30:53,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:30:53" (1/1) ... [2022-01-11 03:30:53,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:30:53,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:30:54,072 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/kbfiltr.i.cil-2.c[62209,62222] [2022-01-11 03:30:54,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:30:54,265 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 03:30:54,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:30:54,318 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/kbfiltr.i.cil-2.c[62209,62222] [2022-01-11 03:30:54,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:30:54,368 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:30:54,396 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/kbfiltr.i.cil-2.c[62209,62222] [2022-01-11 03:30:54,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:30:54,482 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:30:54,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54 WrapperNode [2022-01-11 03:30:54,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:30:54,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:30:54,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:30:54,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:30:54,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,594 INFO L137 Inliner]: procedures = 117, calls = 328, calls flagged for inlining = 52, calls inlined = 89, statements flattened = 1772 [2022-01-11 03:30:54,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:30:54,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:30:54,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:30:54,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:30:54,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:30:54,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:30:54,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:30:54,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:30:54,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (1/1) ... [2022-01-11 03:30:54,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:30:54,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:30:54,755 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) [2022-01-11 03:30:54,761 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 [2022-01-11 03:30:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-11 03:30:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:30:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-01-11 03:30:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:30:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:30:55,074 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:30:55,075 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:30:55,080 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,081 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,083 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,097 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,102 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,105 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,106 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,107 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,109 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,114 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,118 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,121 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,124 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:30:55,129 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:31:07,432 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume false; [2022-01-11 03:31:07,432 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##428: assume !false; [2022-01-11 03:31:07,432 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume !false; [2022-01-11 03:31:07,432 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##200: assume false; [2022-01-11 03:31:07,432 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume false; [2022-01-11 03:31:07,432 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##259: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##289: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##288: assume false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##231: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##230: assume false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##319: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##173: assume false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##69: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2022-01-11 03:31:07,433 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##341: assume !false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##340: assume false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##114: assume !false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##360: assume false; [2022-01-11 03:31:07,434 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##361: assume !false; [2022-01-11 03:31:07,435 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:31:07,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:31:07,443 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 03:31:07,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:31:07 BoogieIcfgContainer [2022-01-11 03:31:07,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:31:07,445 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:31:07,445 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:31:07,451 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:31:07,453 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:31:07" (1/1) ... [2022-01-11 03:31:07,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:31:07 BasicIcfg [2022-01-11 03:31:07,819 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:31:07,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:31:07,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:31:07,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:31:07,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:30:53" (1/4) ... [2022-01-11 03:31:07,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b769f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:31:07, skipping insertion in model container [2022-01-11 03:31:07,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:54" (2/4) ... [2022-01-11 03:31:07,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b769f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:31:07, skipping insertion in model container [2022-01-11 03:31:07,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:31:07" (3/4) ... [2022-01-11 03:31:07,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b769f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:31:07, skipping insertion in model container [2022-01-11 03:31:07,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:31:07" (4/4) ... [2022-01-11 03:31:07,827 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr.i.cil-2.cTransformedIcfg [2022-01-11 03:31:07,832 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:31:07,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-01-11 03:31:07,873 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:31:07,879 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 [2022-01-11 03:31:07,880 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-01-11 03:31:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 401 states, 370 states have (on average 1.5621621621621622) internal successors, (578), 400 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:07,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 03:31:07,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:07,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:07,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:07,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2053233023, now seen corresponding path program 1 times [2022-01-11 03:31:07,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:07,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157290948] [2022-01-11 03:31:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:07,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:08,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:08,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157290948] [2022-01-11 03:31:08,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157290948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:08,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:08,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 03:31:08,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305372422] [2022-01-11 03:31:08,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:08,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 03:31:08,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:08,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 03:31:08,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:31:08,459 INFO L87 Difference]: Start difference. First operand has 401 states, 370 states have (on average 1.5621621621621622) internal successors, (578), 400 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2022-01-11 03:31:08,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:08,508 INFO L93 Difference]: Finished difference Result 768 states and 1121 transitions. [2022-01-11 03:31:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 03:31:08,517 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 [2022-01-11 03:31:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:08,533 INFO L225 Difference]: With dead ends: 768 [2022-01-11 03:31:08,533 INFO L226 Difference]: Without dead ends: 365 [2022-01-11 03:31:08,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 03:31:08,538 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:08,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:31:08,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-01-11 03:31:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-01-11 03:31:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 335 states have (on average 1.4865671641791045) internal successors, (498), 364 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 498 transitions. [2022-01-11 03:31:08,598 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 498 transitions. Word has length 15 [2022-01-11 03:31:08,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:08,598 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 498 transitions. [2022-01-11 03:31:08,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2022-01-11 03:31:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 498 transitions. [2022-01-11 03:31:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 03:31:08,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:08,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:08,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:31:08,599 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:08,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1924150304, now seen corresponding path program 1 times [2022-01-11 03:31:08,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:08,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246804607] [2022-01-11 03:31:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:08,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:08,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:08,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246804607] [2022-01-11 03:31:08,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246804607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:08,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:08,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:08,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941447387] [2022-01-11 03:31:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:08,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:08,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:08,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:08,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:08,974 INFO L87 Difference]: Start difference. First operand 365 states and 498 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) [2022-01-11 03:31:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:09,779 INFO L93 Difference]: Finished difference Result 382 states and 518 transitions. [2022-01-11 03:31:09,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:09,785 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 [2022-01-11 03:31:09,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:09,787 INFO L225 Difference]: With dead ends: 382 [2022-01-11 03:31:09,787 INFO L226 Difference]: Without dead ends: 365 [2022-01-11 03:31:09,787 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 [2022-01-11 03:31:09,788 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 4 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:09,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 870 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 03:31:09,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-01-11 03:31:09,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-01-11 03:31:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 335 states have (on average 1.483582089552239) internal successors, (497), 364 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:09,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 497 transitions. [2022-01-11 03:31:09,795 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 497 transitions. Word has length 15 [2022-01-11 03:31:09,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:09,796 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 497 transitions. [2022-01-11 03:31:09,796 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) [2022-01-11 03:31:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 497 transitions. [2022-01-11 03:31:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-11 03:31:09,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:09,797 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] [2022-01-11 03:31:09,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:31:09,797 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:09,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:09,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1158541239, now seen corresponding path program 1 times [2022-01-11 03:31:09,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:09,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254941521] [2022-01-11 03:31:09,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:09,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:10,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:10,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254941521] [2022-01-11 03:31:10,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254941521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:10,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:10,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:10,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935332714] [2022-01-11 03:31:10,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:10,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:10,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:10,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:10,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:10,167 INFO L87 Difference]: Start difference. First operand 365 states and 497 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) [2022-01-11 03:31:12,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:12,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:12,906 INFO L93 Difference]: Finished difference Result 474 states and 634 transitions. [2022-01-11 03:31:12,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:12,907 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 [2022-01-11 03:31:12,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:12,908 INFO L225 Difference]: With dead ends: 474 [2022-01-11 03:31:12,909 INFO L226 Difference]: Without dead ends: 408 [2022-01-11 03:31:12,909 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 [2022-01-11 03:31:12,910 INFO L933 BasicCegarLoop]: 492 mSDtfsCounter, 245 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:12,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 680 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-01-11 03:31:12,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-01-11 03:31:12,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 391. [2022-01-11 03:31:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 371 states have (on average 1.4393530997304582) internal successors, (534), 390 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 534 transitions. [2022-01-11 03:31:12,918 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 534 transitions. Word has length 24 [2022-01-11 03:31:12,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:12,919 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 534 transitions. [2022-01-11 03:31:12,919 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) [2022-01-11 03:31:12,919 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 534 transitions. [2022-01-11 03:31:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-11 03:31:12,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:12,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:12,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 03:31:12,920 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:12,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash -587398148, now seen corresponding path program 1 times [2022-01-11 03:31:12,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:12,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796456644] [2022-01-11 03:31:12,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:12,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:13,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:13,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796456644] [2022-01-11 03:31:13,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796456644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:13,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:13,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:13,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122894964] [2022-01-11 03:31:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:13,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:13,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:13,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:13,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:13,237 INFO L87 Difference]: Start difference. First operand 391 states and 534 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:15,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:15,304 INFO L93 Difference]: Finished difference Result 477 states and 650 transitions. [2022-01-11 03:31:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:15,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-01-11 03:31:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:15,309 INFO L225 Difference]: With dead ends: 477 [2022-01-11 03:31:15,309 INFO L226 Difference]: Without dead ends: 392 [2022-01-11 03:31:15,311 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 [2022-01-11 03:31:15,315 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:15,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 948 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-01-11 03:31:15,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-01-11 03:31:15,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-01-11 03:31:15,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 372 states have (on average 1.4381720430107527) internal successors, (535), 391 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 535 transitions. [2022-01-11 03:31:15,328 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 535 transitions. Word has length 29 [2022-01-11 03:31:15,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:15,328 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 535 transitions. [2022-01-11 03:31:15,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:15,329 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 535 transitions. [2022-01-11 03:31:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 03:31:15,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:15,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:15,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 03:31:15,335 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:15,337 INFO L85 PathProgramCache]: Analyzing trace with hash -371708796, now seen corresponding path program 1 times [2022-01-11 03:31:15,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:15,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981172318] [2022-01-11 03:31:15,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:15,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:15,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:15,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981172318] [2022-01-11 03:31:15,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981172318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:15,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:15,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:15,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751885342] [2022-01-11 03:31:15,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:15,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:15,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:15,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:15,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:15,638 INFO L87 Difference]: Start difference. First operand 392 states and 535 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:15,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:15,752 INFO L93 Difference]: Finished difference Result 589 states and 788 transitions. [2022-01-11 03:31:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:15,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-01-11 03:31:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:15,755 INFO L225 Difference]: With dead ends: 589 [2022-01-11 03:31:15,755 INFO L226 Difference]: Without dead ends: 395 [2022-01-11 03:31:15,756 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 [2022-01-11 03:31:15,757 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 380 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:15,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 478 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 03:31:15,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-01-11 03:31:15,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 341. [2022-01-11 03:31:15,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 329 states have (on average 1.4285714285714286) internal successors, (470), 340 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:15,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 470 transitions. [2022-01-11 03:31:15,767 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 470 transitions. Word has length 30 [2022-01-11 03:31:15,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:15,768 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 470 transitions. [2022-01-11 03:31:15,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:15,768 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 470 transitions. [2022-01-11 03:31:15,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 03:31:15,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:15,769 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] [2022-01-11 03:31:15,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 03:31:15,770 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:15,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:15,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2015887519, now seen corresponding path program 1 times [2022-01-11 03:31:15,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:15,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029297290] [2022-01-11 03:31:15,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:15,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:16,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:16,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029297290] [2022-01-11 03:31:16,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029297290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:16,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:16,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:16,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593501581] [2022-01-11 03:31:16,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:16,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:16,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:16,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:16,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:16,065 INFO L87 Difference]: Start difference. First operand 341 states and 470 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) [2022-01-11 03:31:18,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:18,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:18,717 INFO L93 Difference]: Finished difference Result 341 states and 470 transitions. [2022-01-11 03:31:18,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:18,718 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 [2022-01-11 03:31:18,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:18,719 INFO L225 Difference]: With dead ends: 341 [2022-01-11 03:31:18,719 INFO L226 Difference]: Without dead ends: 327 [2022-01-11 03:31:18,719 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 [2022-01-11 03:31:18,720 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 78 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:18,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 610 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-01-11 03:31:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-01-11 03:31:18,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-01-11 03:31:18,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.4161490683229814) internal successors, (456), 326 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:18,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 456 transitions. [2022-01-11 03:31:18,727 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 456 transitions. Word has length 31 [2022-01-11 03:31:18,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:18,727 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 456 transitions. [2022-01-11 03:31:18,727 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) [2022-01-11 03:31:18,728 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 456 transitions. [2022-01-11 03:31:18,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 03:31:18,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:18,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:18,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 03:31:18,728 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:18,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:18,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1528378593, now seen corresponding path program 1 times [2022-01-11 03:31:18,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:18,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563054452] [2022-01-11 03:31:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:18,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:18,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:18,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563054452] [2022-01-11 03:31:18,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563054452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:18,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:18,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:18,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367679304] [2022-01-11 03:31:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:18,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:18,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:18,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:18,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:18,994 INFO L87 Difference]: Start difference. First operand 327 states and 456 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) [2022-01-11 03:31:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:19,043 INFO L93 Difference]: Finished difference Result 338 states and 470 transitions. [2022-01-11 03:31:19,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:19,044 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 [2022-01-11 03:31:19,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:19,046 INFO L225 Difference]: With dead ends: 338 [2022-01-11 03:31:19,046 INFO L226 Difference]: Without dead ends: 322 [2022-01-11 03:31:19,046 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 [2022-01-11 03:31:19,047 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 382 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:19,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [382 Valid, 388 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:31:19,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-11 03:31:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 297. [2022-01-11 03:31:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 293 states have (on average 1.4436860068259385) internal successors, (423), 296 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 423 transitions. [2022-01-11 03:31:19,056 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 423 transitions. Word has length 31 [2022-01-11 03:31:19,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:19,056 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 423 transitions. [2022-01-11 03:31:19,056 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) [2022-01-11 03:31:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 423 transitions. [2022-01-11 03:31:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-11 03:31:19,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:19,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:19,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 03:31:19,057 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:19,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:19,057 INFO L85 PathProgramCache]: Analyzing trace with hash -135062874, now seen corresponding path program 1 times [2022-01-11 03:31:19,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:19,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225649795] [2022-01-11 03:31:19,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:19,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:19,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:19,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225649795] [2022-01-11 03:31:19,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225649795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:19,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:19,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:19,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441274124] [2022-01-11 03:31:19,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:19,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:19,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:19,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:19,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:19,310 INFO L87 Difference]: Start difference. First operand 297 states and 423 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:21,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:21,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:21,587 INFO L93 Difference]: Finished difference Result 311 states and 439 transitions. [2022-01-11 03:31:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:21,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-01-11 03:31:21,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:21,588 INFO L225 Difference]: With dead ends: 311 [2022-01-11 03:31:21,589 INFO L226 Difference]: Without dead ends: 297 [2022-01-11 03:31:21,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:21,589 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 19 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:21,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1153 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-11 03:31:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-01-11 03:31:21,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-01-11 03:31:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 293 states have (on average 1.4402730375426622) internal successors, (422), 296 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 422 transitions. [2022-01-11 03:31:21,598 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 422 transitions. Word has length 32 [2022-01-11 03:31:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:21,598 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 422 transitions. [2022-01-11 03:31:21,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:21,598 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 422 transitions. [2022-01-11 03:31:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-11 03:31:21,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:21,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:21,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 03:31:21,599 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:21,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash 762139397, now seen corresponding path program 1 times [2022-01-11 03:31:21,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:21,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980157527] [2022-01-11 03:31:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:21,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:21,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:21,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:21,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980157527] [2022-01-11 03:31:21,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980157527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:21,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:21,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:21,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104619614] [2022-01-11 03:31:21,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:21,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:21,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:21,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:21,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:21,950 INFO L87 Difference]: Start difference. First operand 297 states and 422 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:23,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:24,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:24,272 INFO L93 Difference]: Finished difference Result 311 states and 438 transitions. [2022-01-11 03:31:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:24,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-11 03:31:24,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:24,274 INFO L225 Difference]: With dead ends: 311 [2022-01-11 03:31:24,274 INFO L226 Difference]: Without dead ends: 297 [2022-01-11 03:31:24,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:24,274 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 7 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:24,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1152 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-11 03:31:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-01-11 03:31:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-01-11 03:31:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 293 states have (on average 1.4368600682593857) internal successors, (421), 296 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 421 transitions. [2022-01-11 03:31:24,282 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 421 transitions. Word has length 33 [2022-01-11 03:31:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:24,282 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 421 transitions. [2022-01-11 03:31:24,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 421 transitions. [2022-01-11 03:31:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-11 03:31:24,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:24,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:24,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 03:31:24,283 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:24,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:24,283 INFO L85 PathProgramCache]: Analyzing trace with hash 891222116, now seen corresponding path program 1 times [2022-01-11 03:31:24,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:24,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742929765] [2022-01-11 03:31:24,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:24,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:24,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:24,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742929765] [2022-01-11 03:31:24,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742929765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:24,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:24,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:24,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186945145] [2022-01-11 03:31:24,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:24,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:24,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:24,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:24,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:24,664 INFO L87 Difference]: Start difference. First operand 297 states and 421 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:25,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:25,441 INFO L93 Difference]: Finished difference Result 337 states and 462 transitions. [2022-01-11 03:31:25,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:25,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-11 03:31:25,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:25,443 INFO L225 Difference]: With dead ends: 337 [2022-01-11 03:31:25,443 INFO L226 Difference]: Without dead ends: 295 [2022-01-11 03:31:25,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:25,444 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 616 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:25,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 500 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 03:31:25,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-01-11 03:31:25,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 293. [2022-01-11 03:31:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 289 states have (on average 1.4152249134948096) internal successors, (409), 292 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 409 transitions. [2022-01-11 03:31:25,454 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 409 transitions. Word has length 33 [2022-01-11 03:31:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:25,454 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 409 transitions. [2022-01-11 03:31:25,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:25,454 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 409 transitions. [2022-01-11 03:31:25,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 03:31:25,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:25,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:25,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 03:31:25,455 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:25,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:25,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1176791818, now seen corresponding path program 1 times [2022-01-11 03:31:25,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:25,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344165299] [2022-01-11 03:31:25,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:25,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:25,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:25,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344165299] [2022-01-11 03:31:25,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344165299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:25,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:25,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 03:31:25,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353676994] [2022-01-11 03:31:25,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:25,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 03:31:25,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:25,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 03:31:25,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:25,836 INFO L87 Difference]: Start difference. First operand 293 states and 409 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:27,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:30,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:32,136 INFO L93 Difference]: Finished difference Result 337 states and 463 transitions. [2022-01-11 03:31:32,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 03:31:32,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-11 03:31:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:32,137 INFO L225 Difference]: With dead ends: 337 [2022-01-11 03:31:32,137 INFO L226 Difference]: Without dead ends: 292 [2022-01-11 03:31:32,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 03:31:32,138 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 34 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:32,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 1476 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-01-11 03:31:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-01-11 03:31:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-01-11 03:31:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 288 states have (on average 1.4027777777777777) internal successors, (404), 291 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 404 transitions. [2022-01-11 03:31:32,147 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 404 transitions. Word has length 40 [2022-01-11 03:31:32,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:32,147 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 404 transitions. [2022-01-11 03:31:32,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 404 transitions. [2022-01-11 03:31:32,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 03:31:32,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:32,148 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] [2022-01-11 03:31:32,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 03:31:32,148 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:32,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:32,148 INFO L85 PathProgramCache]: Analyzing trace with hash 666581440, now seen corresponding path program 1 times [2022-01-11 03:31:32,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:32,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175591946] [2022-01-11 03:31:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:32,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-11 03:31:32,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:32,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175591946] [2022-01-11 03:31:32,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175591946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:32,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:32,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:32,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124853515] [2022-01-11 03:31:32,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:32,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:32,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:32,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:32,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:32,431 INFO L87 Difference]: Start difference. First operand 292 states and 404 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:34,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:34,556 INFO L93 Difference]: Finished difference Result 385 states and 526 transitions. [2022-01-11 03:31:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:34,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-11 03:31:34,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:34,569 INFO L225 Difference]: With dead ends: 385 [2022-01-11 03:31:34,569 INFO L226 Difference]: Without dead ends: 308 [2022-01-11 03:31:34,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:34,570 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 75 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:34,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 1081 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-01-11 03:31:34,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-01-11 03:31:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 293. [2022-01-11 03:31:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 289 states have (on average 1.4013840830449826) internal successors, (405), 292 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:34,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 405 transitions. [2022-01-11 03:31:34,582 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 405 transitions. Word has length 41 [2022-01-11 03:31:34,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:34,582 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 405 transitions. [2022-01-11 03:31:34,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 405 transitions. [2022-01-11 03:31:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 03:31:34,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:34,583 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] [2022-01-11 03:31:34,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 03:31:34,583 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:34,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:34,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1284899650, now seen corresponding path program 1 times [2022-01-11 03:31:34,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:34,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772766773] [2022-01-11 03:31:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:34,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:34,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:34,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772766773] [2022-01-11 03:31:34,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772766773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:34,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:34,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:34,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132447679] [2022-01-11 03:31:34,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:34,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:34,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:34,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:34,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:34,929 INFO L87 Difference]: Start difference. First operand 293 states and 405 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:35,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:35,598 INFO L93 Difference]: Finished difference Result 311 states and 425 transitions. [2022-01-11 03:31:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:35,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-11 03:31:35,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:35,599 INFO L225 Difference]: With dead ends: 311 [2022-01-11 03:31:35,599 INFO L226 Difference]: Without dead ends: 306 [2022-01-11 03:31:35,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:35,600 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 370 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:35,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 643 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 03:31:35,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-01-11 03:31:35,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 302. [2022-01-11 03:31:35,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.3926174496644295) internal successors, (415), 301 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:35,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 415 transitions. [2022-01-11 03:31:35,612 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 415 transitions. Word has length 41 [2022-01-11 03:31:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:35,612 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 415 transitions. [2022-01-11 03:31:35,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 415 transitions. [2022-01-11 03:31:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 03:31:35,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:35,613 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, 1, 1, 1, 1] [2022-01-11 03:31:35,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 03:31:35,613 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:35,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:35,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1656049441, now seen corresponding path program 1 times [2022-01-11 03:31:35,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:35,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934683629] [2022-01-11 03:31:35,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:35,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:35,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:35,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934683629] [2022-01-11 03:31:35,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934683629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:35,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:35,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:35,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555012671] [2022-01-11 03:31:35,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:35,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:35,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:35,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:35,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:35,976 INFO L87 Difference]: Start difference. First operand 302 states and 415 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:38,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:38,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:38,724 INFO L93 Difference]: Finished difference Result 362 states and 483 transitions. [2022-01-11 03:31:38,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:38,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 03:31:38,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:38,725 INFO L225 Difference]: With dead ends: 362 [2022-01-11 03:31:38,725 INFO L226 Difference]: Without dead ends: 357 [2022-01-11 03:31:38,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:38,726 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 441 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:38,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 649 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 102 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-01-11 03:31:38,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-01-11 03:31:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 322. [2022-01-11 03:31:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 318 states have (on average 1.3679245283018868) internal successors, (435), 321 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 435 transitions. [2022-01-11 03:31:38,741 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 435 transitions. Word has length 42 [2022-01-11 03:31:38,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:38,741 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 435 transitions. [2022-01-11 03:31:38,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 435 transitions. [2022-01-11 03:31:38,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 03:31:38,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:38,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:38,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 03:31:38,742 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:38,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:38,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1400229711, now seen corresponding path program 1 times [2022-01-11 03:31:38,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:38,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031489427] [2022-01-11 03:31:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:38,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:39,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 03:31:39,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:39,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031489427] [2022-01-11 03:31:39,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031489427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:39,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:39,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:39,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188848802] [2022-01-11 03:31:39,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:39,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:39,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:39,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:39,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:39,010 INFO L87 Difference]: Start difference. First operand 322 states and 435 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:41,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:41,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:41,217 INFO L93 Difference]: Finished difference Result 386 states and 513 transitions. [2022-01-11 03:31:41,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:41,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 03:31:41,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:41,218 INFO L225 Difference]: With dead ends: 386 [2022-01-11 03:31:41,218 INFO L226 Difference]: Without dead ends: 337 [2022-01-11 03:31:41,218 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 [2022-01-11 03:31:41,219 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 66 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:41,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 694 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-11 03:31:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-01-11 03:31:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 322. [2022-01-11 03:31:41,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 318 states have (on average 1.3647798742138364) internal successors, (434), 321 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:41,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 434 transitions. [2022-01-11 03:31:41,233 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 434 transitions. Word has length 42 [2022-01-11 03:31:41,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:41,233 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 434 transitions. [2022-01-11 03:31:41,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:41,233 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 434 transitions. [2022-01-11 03:31:41,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 03:31:41,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:41,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:41,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 03:31:41,234 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:41,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:41,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1207902574, now seen corresponding path program 1 times [2022-01-11 03:31:41,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:41,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643186882] [2022-01-11 03:31:41,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:41,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:41,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:41,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643186882] [2022-01-11 03:31:41,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643186882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:41,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:41,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:41,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758802407] [2022-01-11 03:31:41,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:41,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:41,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:41,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:41,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:41,588 INFO L87 Difference]: Start difference. First operand 322 states and 434 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:42,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:42,194 INFO L93 Difference]: Finished difference Result 340 states and 453 transitions. [2022-01-11 03:31:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:42,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 03:31:42,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:42,196 INFO L225 Difference]: With dead ends: 340 [2022-01-11 03:31:42,196 INFO L226 Difference]: Without dead ends: 335 [2022-01-11 03:31:42,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:42,197 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 366 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:42,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 642 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 03:31:42,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-01-11 03:31:42,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 332. [2022-01-11 03:31:42,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 328 states have (on average 1.3567073170731707) internal successors, (445), 331 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 445 transitions. [2022-01-11 03:31:42,220 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 445 transitions. Word has length 42 [2022-01-11 03:31:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:42,221 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 445 transitions. [2022-01-11 03:31:42,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 445 transitions. [2022-01-11 03:31:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 03:31:42,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:42,221 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] [2022-01-11 03:31:42,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 03:31:42,222 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:42,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:42,222 INFO L85 PathProgramCache]: Analyzing trace with hash 171355793, now seen corresponding path program 1 times [2022-01-11 03:31:42,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:42,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135485778] [2022-01-11 03:31:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:42,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:42,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:42,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:42,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135485778] [2022-01-11 03:31:42,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135485778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:42,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:42,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:31:42,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568463491] [2022-01-11 03:31:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:42,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:31:42,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:31:42,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:31:42,555 INFO L87 Difference]: Start difference. First operand 332 states and 445 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 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) [2022-01-11 03:31:44,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:45,296 INFO L93 Difference]: Finished difference Result 360 states and 480 transitions. [2022-01-11 03:31:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:31:45,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 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 [2022-01-11 03:31:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:45,298 INFO L225 Difference]: With dead ends: 360 [2022-01-11 03:31:45,298 INFO L226 Difference]: Without dead ends: 322 [2022-01-11 03:31:45,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:31:45,298 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 432 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:45,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 655 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-01-11 03:31:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-01-11 03:31:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 302. [2022-01-11 03:31:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.3624161073825503) internal successors, (406), 301 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:45,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 406 transitions. [2022-01-11 03:31:45,333 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 406 transitions. Word has length 43 [2022-01-11 03:31:45,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:45,333 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 406 transitions. [2022-01-11 03:31:45,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 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) [2022-01-11 03:31:45,333 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 406 transitions. [2022-01-11 03:31:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 03:31:45,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:45,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:31:45,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 03:31:45,334 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:45,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash -680219143, now seen corresponding path program 1 times [2022-01-11 03:31:45,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:45,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092525798] [2022-01-11 03:31:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:45,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 03:31:45,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:45,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092525798] [2022-01-11 03:31:45,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092525798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:45,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:45,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:45,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532976740] [2022-01-11 03:31:45,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:45,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:45,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:45,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:45,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:45,576 INFO L87 Difference]: Start difference. First operand 302 states and 406 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-11 03:31:47,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:48,080 INFO L93 Difference]: Finished difference Result 345 states and 459 transitions. [2022-01-11 03:31:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:48,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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 [2022-01-11 03:31:48,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:48,081 INFO L225 Difference]: With dead ends: 345 [2022-01-11 03:31:48,081 INFO L226 Difference]: Without dead ends: 299 [2022-01-11 03:31:48,082 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 [2022-01-11 03:31:48,082 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 6 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:48,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 654 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 60 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-11 03:31:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-01-11 03:31:48,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2022-01-11 03:31:48,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 296 states have (on average 1.3581081081081081) internal successors, (402), 298 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 402 transitions. [2022-01-11 03:31:48,096 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 402 transitions. Word has length 43 [2022-01-11 03:31:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:48,096 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 402 transitions. [2022-01-11 03:31:48,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-11 03:31:48,096 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 402 transitions. [2022-01-11 03:31:48,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 03:31:48,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:48,097 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] [2022-01-11 03:31:48,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 03:31:48,097 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1185471429, now seen corresponding path program 1 times [2022-01-11 03:31:48,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:48,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683894652] [2022-01-11 03:31:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:48,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:48,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:48,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683894652] [2022-01-11 03:31:48,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683894652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:48,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:48,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:48,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522139933] [2022-01-11 03:31:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:48,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:48,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:48,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:48,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:48,346 INFO L87 Difference]: Start difference. First operand 299 states and 402 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-11 03:31:48,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:31:48,370 INFO L93 Difference]: Finished difference Result 325 states and 429 transitions. [2022-01-11 03:31:48,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:31:48,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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 [2022-01-11 03:31:48,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:31:48,372 INFO L225 Difference]: With dead ends: 325 [2022-01-11 03:31:48,372 INFO L226 Difference]: Without dead ends: 309 [2022-01-11 03:31:48,373 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 [2022-01-11 03:31:48,373 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 58 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:31:48,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 675 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:31:48,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-01-11 03:31:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 296. [2022-01-11 03:31:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 293 states have (on average 1.3583617747440273) internal successors, (398), 295 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 398 transitions. [2022-01-11 03:31:48,389 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 398 transitions. Word has length 43 [2022-01-11 03:31:48,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:31:48,389 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 398 transitions. [2022-01-11 03:31:48,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2022-01-11 03:31:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 398 transitions. [2022-01-11 03:31:48,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-11 03:31:48,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:31:48,389 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] [2022-01-11 03:31:48,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 03:31:48,390 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2022-01-11 03:31:48,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:31:48,390 INFO L85 PathProgramCache]: Analyzing trace with hash -215754486, now seen corresponding path program 1 times [2022-01-11 03:31:48,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:31:48,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953422536] [2022-01-11 03:31:48,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:31:48,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:31:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:31:48,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:31:48,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:31:48,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953422536] [2022-01-11 03:31:48,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953422536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:31:48,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:31:48,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:31:48,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900205642] [2022-01-11 03:31:48,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:31:48,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:31:48,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:31:48,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:31:48,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:31:48,640 INFO L87 Difference]: Start difference. First operand 296 states and 398 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:31:50,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:52,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:54,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:31:56,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []