/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:04:53,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:04:53,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:04:53,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:04:53,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:04:53,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:04:53,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:04:53,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:04:53,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:04:53,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:04:53,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:04:53,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:04:53,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:04:53,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:04:53,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:04:53,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:04:53,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:04:53,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:04:53,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:04:53,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:04:53,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:04:53,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:04:53,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:04:53,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:04:53,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 20:04:53,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:04:53,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:04:53,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:04:53,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:04:53,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:04:53,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:04:53,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:04:53,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:04:53,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:04:53,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:04:53,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:04:53,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 20:04:53,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:04:53,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:04:53,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:04:53,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:04:53,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:04:53,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:04:53,961 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:04:53,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:04:53,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:04:53,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:04:53,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:04:53,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:04:53,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:04:53,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:04:53,963 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:04:53,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:04:53,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:04:53,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:04:53,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:04:53,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:04:53,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:04:53,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:04:53,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:04:53,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:04:53,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:04:53,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:04:53,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:04:53,965 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:04:53,965 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:04:53,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:04:53,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:04:53,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:04:53,966 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:04:53,966 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:04:54,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:04:54,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:04:54,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:04:54,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:04:54,178 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:04:54,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2022-01-10 20:04:54,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208d69b26/05d63838d75c49f281d25634de1438ce/FLAGecbef5db0 [2022-01-10 20:04:54,603 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:04:54,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2022-01-10 20:04:54,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208d69b26/05d63838d75c49f281d25634de1438ce/FLAGecbef5db0 [2022-01-10 20:04:55,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208d69b26/05d63838d75c49f281d25634de1438ce [2022-01-10 20:04:55,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:04:55,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:04:55,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:04:55,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:04:55,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:04:55,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f3c87ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55, skipping insertion in model container [2022-01-10 20:04:55,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:04:55,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:04:55,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c[911,924] [2022-01-10 20:04:55,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c[8416,8429] [2022-01-10 20:04:55,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:04:55,358 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:04:55,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c[911,924] [2022-01-10 20:04:55,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c[8416,8429] [2022-01-10 20:04:55,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:04:55,436 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:04:55,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55 WrapperNode [2022-01-10 20:04:55,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:04:55,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:04:55,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:04:55,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:04:55,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,500 INFO L137 Inliner]: procedures = 66, calls = 77, calls flagged for inlining = 72, calls inlined = 128, statements flattened = 1757 [2022-01-10 20:04:55,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:04:55,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:04:55,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:04:55,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:04:55,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:04:55,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:04:55,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:04:55,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:04:55,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (1/1) ... [2022-01-10 20:04:55,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:04:55,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:04:55,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 20:04:55,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 20:04:55,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:04:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:04:55,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:04:55,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:04:55,677 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:04:55,678 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:04:56,571 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !(1bv32 == ~q_free~0); [2022-01-10 20:04:56,571 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2022-01-10 20:04:56,571 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:04:56,585 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:04:56,585 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-01-10 20:04:56,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:04:56 BoogieIcfgContainer [2022-01-10 20:04:56,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:04:56,588 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:04:56,588 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:04:56,589 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:04:56,592 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:04:56" (1/1) ... [2022-01-10 20:04:56,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:04:56 BasicIcfg [2022-01-10 20:04:56,804 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:04:56,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:04:56,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:04:56,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:04:56,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:04:55" (1/4) ... [2022-01-10 20:04:56,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee22fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:04:56, skipping insertion in model container [2022-01-10 20:04:56,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:04:55" (2/4) ... [2022-01-10 20:04:56,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee22fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:04:56, skipping insertion in model container [2022-01-10 20:04:56,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:04:56" (3/4) ... [2022-01-10 20:04:56,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee22fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:04:56, skipping insertion in model container [2022-01-10 20:04:56,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:04:56" (4/4) ... [2022-01-10 20:04:56,810 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.05.cil-2.cTransformedIcfg [2022-01-10 20:04:56,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:04:56,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 20:04:56,854 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:04:56,859 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 20:04:56,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 20:04:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 703 states, 698 states have (on average 1.5444126074498568) internal successors, (1078), 702 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:56,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:04:56,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:56,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:56,895 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:56,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:56,898 INFO L85 PathProgramCache]: Analyzing trace with hash -867618187, now seen corresponding path program 1 times [2022-01-10 20:04:56,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:56,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281599590] [2022-01-10 20:04:56,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:56,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:57,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:57,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281599590] [2022-01-10 20:04:57,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281599590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:57,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:57,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:57,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810175329] [2022-01-10 20:04:57,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:57,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:57,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,143 INFO L87 Difference]: Start difference. First operand has 703 states, 698 states have (on average 1.5444126074498568) internal successors, (1078), 702 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:57,298 INFO L93 Difference]: Finished difference Result 1449 states and 2220 transitions. [2022-01-10 20:04:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:57,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 20:04:57,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:57,322 INFO L225 Difference]: With dead ends: 1449 [2022-01-10 20:04:57,322 INFO L226 Difference]: Without dead ends: 825 [2022-01-10 20:04:57,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,342 INFO L933 BasicCegarLoop]: 1040 mSDtfsCounter, 185 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:57,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 2048 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:04:57,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-01-10 20:04:57,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 821. [2022-01-10 20:04:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 817 states have (on average 1.4944920440636476) internal successors, (1221), 820 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1221 transitions. [2022-01-10 20:04:57,405 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1221 transitions. Word has length 44 [2022-01-10 20:04:57,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:57,406 INFO L470 AbstractCegarLoop]: Abstraction has 821 states and 1221 transitions. [2022-01-10 20:04:57,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1221 transitions. [2022-01-10 20:04:57,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:04:57,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:57,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:57,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:04:57,408 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:57,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:57,408 INFO L85 PathProgramCache]: Analyzing trace with hash 630058613, now seen corresponding path program 1 times [2022-01-10 20:04:57,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:57,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233077711] [2022-01-10 20:04:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:57,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:57,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:57,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233077711] [2022-01-10 20:04:57,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233077711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:57,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:57,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:57,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099521384] [2022-01-10 20:04:57,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:57,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:57,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:57,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,475 INFO L87 Difference]: Start difference. First operand 821 states and 1221 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:57,540 INFO L93 Difference]: Finished difference Result 1239 states and 1826 transitions. [2022-01-10 20:04:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:57,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-01-10 20:04:57,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:57,544 INFO L225 Difference]: With dead ends: 1239 [2022-01-10 20:04:57,544 INFO L226 Difference]: Without dead ends: 999 [2022-01-10 20:04:57,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,548 INFO L933 BasicCegarLoop]: 1025 mSDtfsCounter, 999 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:57,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 1160 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:57,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-01-10 20:04:57,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 991. [2022-01-10 20:04:57,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 987 states have (on average 1.475177304964539) internal successors, (1456), 990 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1456 transitions. [2022-01-10 20:04:57,582 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1456 transitions. Word has length 44 [2022-01-10 20:04:57,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:57,584 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1456 transitions. [2022-01-10 20:04:57,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,587 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1456 transitions. [2022-01-10 20:04:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 20:04:57,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:57,599 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:57,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:04:57,600 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:57,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1481517482, now seen corresponding path program 1 times [2022-01-10 20:04:57,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:57,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430201295] [2022-01-10 20:04:57,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:57,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:57,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:57,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430201295] [2022-01-10 20:04:57,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430201295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:57,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:57,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:57,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335022020] [2022-01-10 20:04:57,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:57,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:57,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:57,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:57,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,689 INFO L87 Difference]: Start difference. First operand 991 states and 1456 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:57,739 INFO L93 Difference]: Finished difference Result 1713 states and 2490 transitions. [2022-01-10 20:04:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 20:04:57,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:57,743 INFO L225 Difference]: With dead ends: 1713 [2022-01-10 20:04:57,743 INFO L226 Difference]: Without dead ends: 1317 [2022-01-10 20:04:57,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,744 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 983 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:57,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 1157 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:57,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-01-10 20:04:57,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1309. [2022-01-10 20:04:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 1305 states have (on average 1.4475095785440613) internal successors, (1889), 1308 states have internal predecessors, (1889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1889 transitions. [2022-01-10 20:04:57,776 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1889 transitions. Word has length 45 [2022-01-10 20:04:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:57,776 INFO L470 AbstractCegarLoop]: Abstraction has 1309 states and 1889 transitions. [2022-01-10 20:04:57,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1889 transitions. [2022-01-10 20:04:57,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 20:04:57,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:57,777 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:57,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 20:04:57,777 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:57,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:57,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1890631859, now seen corresponding path program 1 times [2022-01-10 20:04:57,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:57,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142902590] [2022-01-10 20:04:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:57,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 20:04:57,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:57,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142902590] [2022-01-10 20:04:57,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142902590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:57,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:57,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:57,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318057075] [2022-01-10 20:04:57,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:57,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:57,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:57,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:57,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,817 INFO L87 Difference]: Start difference. First operand 1309 states and 1889 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:57,918 INFO L93 Difference]: Finished difference Result 2677 states and 3791 transitions. [2022-01-10 20:04:57,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:57,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 20:04:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:57,924 INFO L225 Difference]: With dead ends: 2677 [2022-01-10 20:04:57,925 INFO L226 Difference]: Without dead ends: 1981 [2022-01-10 20:04:57,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:57,927 INFO L933 BasicCegarLoop]: 1022 mSDtfsCounter, 978 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:57,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 1187 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:57,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2022-01-10 20:04:57,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1977. [2022-01-10 20:04:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1977 states, 1973 states have (on average 1.4064875823618854) internal successors, (2775), 1976 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 2775 transitions. [2022-01-10 20:04:57,980 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 2775 transitions. Word has length 59 [2022-01-10 20:04:57,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:57,981 INFO L470 AbstractCegarLoop]: Abstraction has 1977 states and 2775 transitions. [2022-01-10 20:04:57,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 2775 transitions. [2022-01-10 20:04:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 20:04:57,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:57,982 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:57,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 20:04:57,983 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:57,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:57,983 INFO L85 PathProgramCache]: Analyzing trace with hash -856546801, now seen corresponding path program 1 times [2022-01-10 20:04:57,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:57,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986877206] [2022-01-10 20:04:57,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:57,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:58,021 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:58,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:58,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986877206] [2022-01-10 20:04:58,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986877206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:58,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:58,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:58,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869369220] [2022-01-10 20:04:58,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:58,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:58,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:58,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:58,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:58,023 INFO L87 Difference]: Start difference. First operand 1977 states and 2775 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:58,129 INFO L93 Difference]: Finished difference Result 4601 states and 6357 transitions. [2022-01-10 20:04:58,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:58,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 20:04:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:58,139 INFO L225 Difference]: With dead ends: 4601 [2022-01-10 20:04:58,140 INFO L226 Difference]: Without dead ends: 3281 [2022-01-10 20:04:58,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:58,142 INFO L933 BasicCegarLoop]: 1167 mSDtfsCounter, 146 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:58,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 2176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:58,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2022-01-10 20:04:58,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3281. [2022-01-10 20:04:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3277 states have (on average 1.374122673176686) internal successors, (4503), 3280 states have internal predecessors, (4503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4503 transitions. [2022-01-10 20:04:58,247 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4503 transitions. Word has length 61 [2022-01-10 20:04:58,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:58,247 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4503 transitions. [2022-01-10 20:04:58,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4503 transitions. [2022-01-10 20:04:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:04:58,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:58,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:58,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 20:04:58,251 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1614359107, now seen corresponding path program 1 times [2022-01-10 20:04:58,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:58,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785603932] [2022-01-10 20:04:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:58,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:58,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:58,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785603932] [2022-01-10 20:04:58,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785603932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:58,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:58,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:04:58,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476838401] [2022-01-10 20:04:58,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:58,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:58,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:58,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:58,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:58,293 INFO L87 Difference]: Start difference. First operand 3281 states and 4503 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:58,368 INFO L93 Difference]: Finished difference Result 3831 states and 5329 transitions. [2022-01-10 20:04:58,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:58,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:04:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:58,378 INFO L225 Difference]: With dead ends: 3831 [2022-01-10 20:04:58,378 INFO L226 Difference]: Without dead ends: 3281 [2022-01-10 20:04:58,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:58,387 INFO L933 BasicCegarLoop]: 1024 mSDtfsCounter, 827 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:58,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 1218 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:58,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2022-01-10 20:04:58,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3281. [2022-01-10 20:04:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3277 states have (on average 1.3738175160207506) internal successors, (4502), 3280 states have internal predecessors, (4502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4502 transitions. [2022-01-10 20:04:58,513 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4502 transitions. Word has length 88 [2022-01-10 20:04:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:58,513 INFO L470 AbstractCegarLoop]: Abstraction has 3281 states and 4502 transitions. [2022-01-10 20:04:58,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4502 transitions. [2022-01-10 20:04:58,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:04:58,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:58,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:58,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 20:04:58,518 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:58,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:58,518 INFO L85 PathProgramCache]: Analyzing trace with hash -129303556, now seen corresponding path program 1 times [2022-01-10 20:04:58,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:58,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6333567] [2022-01-10 20:04:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:58,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:58,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:58,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:58,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6333567] [2022-01-10 20:04:58,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6333567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:58,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:58,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:04:58,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122325267] [2022-01-10 20:04:58,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:58,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:58,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:58,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:58,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:58,550 INFO L87 Difference]: Start difference. First operand 3281 states and 4502 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:58,666 INFO L93 Difference]: Finished difference Result 4256 states and 5957 transitions. [2022-01-10 20:04:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:04:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:58,677 INFO L225 Difference]: With dead ends: 4256 [2022-01-10 20:04:58,678 INFO L226 Difference]: Without dead ends: 3713 [2022-01-10 20:04:58,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:58,680 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 945 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:58,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [945 Valid, 1717 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:58,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-01-10 20:04:58,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3709. [2022-01-10 20:04:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3867746288798921) internal successors, (5138), 3708 states have internal predecessors, (5138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5138 transitions. [2022-01-10 20:04:58,786 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5138 transitions. Word has length 88 [2022-01-10 20:04:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:58,786 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5138 transitions. [2022-01-10 20:04:58,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:58,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5138 transitions. [2022-01-10 20:04:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:04:58,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:58,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:58,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 20:04:58,794 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:58,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:58,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1941125660, now seen corresponding path program 1 times [2022-01-10 20:04:58,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:58,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993676061] [2022-01-10 20:04:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:58,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:58,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:58,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993676061] [2022-01-10 20:04:58,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993676061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:58,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:58,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:04:58,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537822149] [2022-01-10 20:04:58,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:58,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:58,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:58,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:58,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:58,831 INFO L87 Difference]: Start difference. First operand 3709 states and 5138 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:59,023 INFO L93 Difference]: Finished difference Result 4679 states and 6586 transitions. [2022-01-10 20:04:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:59,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:04:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:59,033 INFO L225 Difference]: With dead ends: 4679 [2022-01-10 20:04:59,034 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:04:59,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:59,051 INFO L933 BasicCegarLoop]: 1013 mSDtfsCounter, 1005 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:59,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1005 Valid, 1013 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:59,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:04:59,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:04:59,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3846153846153846) internal successors, (5130), 3708 states have internal predecessors, (5130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5130 transitions. [2022-01-10 20:04:59,259 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5130 transitions. Word has length 88 [2022-01-10 20:04:59,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:59,259 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5130 transitions. [2022-01-10 20:04:59,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5130 transitions. [2022-01-10 20:04:59,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:04:59,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:59,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:59,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 20:04:59,263 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:59,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1455769604, now seen corresponding path program 1 times [2022-01-10 20:04:59,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:59,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056149806] [2022-01-10 20:04:59,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:59,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:59,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:59,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056149806] [2022-01-10 20:04:59,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056149806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:59,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:59,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:04:59,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890593653] [2022-01-10 20:04:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:59,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:59,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:59,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:59,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:59,288 INFO L87 Difference]: Start difference. First operand 3709 states and 5130 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:59,384 INFO L93 Difference]: Finished difference Result 4678 states and 6569 transitions. [2022-01-10 20:04:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:59,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:04:59,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:59,394 INFO L225 Difference]: With dead ends: 4678 [2022-01-10 20:04:59,394 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:04:59,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:59,396 INFO L933 BasicCegarLoop]: 1008 mSDtfsCounter, 999 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:59,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 1008 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:04:59,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:04:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3824561403508773) internal successors, (5122), 3708 states have internal predecessors, (5122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5122 transitions. [2022-01-10 20:04:59,498 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5122 transitions. Word has length 88 [2022-01-10 20:04:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:59,499 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5122 transitions. [2022-01-10 20:04:59,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5122 transitions. [2022-01-10 20:04:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:04:59,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:59,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:59,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 20:04:59,503 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:59,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1205599772, now seen corresponding path program 1 times [2022-01-10 20:04:59,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:59,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733774589] [2022-01-10 20:04:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:59,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:59,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:59,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:59,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733774589] [2022-01-10 20:04:59,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733774589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:59,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:59,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:04:59,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713545352] [2022-01-10 20:04:59,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:59,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:59,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:59,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:59,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:59,533 INFO L87 Difference]: Start difference. First operand 3709 states and 5122 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:59,646 INFO L93 Difference]: Finished difference Result 4677 states and 6552 transitions. [2022-01-10 20:04:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:59,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:04:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:59,668 INFO L225 Difference]: With dead ends: 4677 [2022-01-10 20:04:59,668 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:04:59,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:59,670 INFO L933 BasicCegarLoop]: 1003 mSDtfsCounter, 993 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:59,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 1003 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:04:59,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:04:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3802968960863697) internal successors, (5114), 3708 states have internal predecessors, (5114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5114 transitions. [2022-01-10 20:04:59,787 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5114 transitions. Word has length 88 [2022-01-10 20:04:59,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:04:59,788 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5114 transitions. [2022-01-10 20:04:59,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5114 transitions. [2022-01-10 20:04:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:04:59,792 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:04:59,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:04:59,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 20:04:59,793 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:04:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:04:59,793 INFO L85 PathProgramCache]: Analyzing trace with hash 183071740, now seen corresponding path program 1 times [2022-01-10 20:04:59,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:04:59,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169065681] [2022-01-10 20:04:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:04:59,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:04:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:04:59,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:04:59,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:04:59,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169065681] [2022-01-10 20:04:59,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169065681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:04:59,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:04:59,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:04:59,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26650774] [2022-01-10 20:04:59,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:04:59,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:04:59,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:04:59,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:04:59,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:59,825 INFO L87 Difference]: Start difference. First operand 3709 states and 5114 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:04:59,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:04:59,945 INFO L93 Difference]: Finished difference Result 4675 states and 6533 transitions. [2022-01-10 20:04:59,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:04:59,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:04:59,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:04:59,952 INFO L225 Difference]: With dead ends: 4675 [2022-01-10 20:04:59,952 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:04:59,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:04:59,954 INFO L933 BasicCegarLoop]: 998 mSDtfsCounter, 986 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:04:59,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 998 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:04:59,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:05:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:05:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3781376518218624) internal successors, (5106), 3708 states have internal predecessors, (5106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5106 transitions. [2022-01-10 20:05:00,077 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5106 transitions. Word has length 88 [2022-01-10 20:05:00,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:00,078 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5106 transitions. [2022-01-10 20:05:00,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5106 transitions. [2022-01-10 20:05:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:00,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:00,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:00,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 20:05:00,081 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:00,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:00,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1956307420, now seen corresponding path program 1 times [2022-01-10 20:05:00,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:00,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629491338] [2022-01-10 20:05:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:00,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:00,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:00,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629491338] [2022-01-10 20:05:00,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629491338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:00,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:00,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:00,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365837958] [2022-01-10 20:05:00,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:00,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:00,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:00,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:00,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:00,108 INFO L87 Difference]: Start difference. First operand 3709 states and 5106 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:00,237 INFO L93 Difference]: Finished difference Result 4674 states and 6516 transitions. [2022-01-10 20:05:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:00,243 INFO L225 Difference]: With dead ends: 4674 [2022-01-10 20:05:00,243 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:05:00,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:00,245 INFO L933 BasicCegarLoop]: 977 mSDtfsCounter, 910 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:00,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 1035 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:05:00,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:05:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3721997300944668) internal successors, (5084), 3708 states have internal predecessors, (5084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5084 transitions. [2022-01-10 20:05:00,348 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5084 transitions. Word has length 88 [2022-01-10 20:05:00,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:00,348 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5084 transitions. [2022-01-10 20:05:00,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5084 transitions. [2022-01-10 20:05:00,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:00,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:00,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:00,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 20:05:00,352 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:00,353 INFO L85 PathProgramCache]: Analyzing trace with hash -702506117, now seen corresponding path program 1 times [2022-01-10 20:05:00,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:00,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587431405] [2022-01-10 20:05:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:00,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:00,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:00,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587431405] [2022-01-10 20:05:00,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587431405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:00,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:00,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:00,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711074077] [2022-01-10 20:05:00,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:00,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:00,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:00,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:00,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:00,377 INFO L87 Difference]: Start difference. First operand 3709 states and 5084 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:00,506 INFO L93 Difference]: Finished difference Result 4673 states and 6471 transitions. [2022-01-10 20:05:00,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:00,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:00,512 INFO L225 Difference]: With dead ends: 4673 [2022-01-10 20:05:00,512 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:05:00,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:00,513 INFO L933 BasicCegarLoop]: 964 mSDtfsCounter, 897 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:00,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 1021 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:00,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:05:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:05:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3662618083670715) internal successors, (5062), 3708 states have internal predecessors, (5062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5062 transitions. [2022-01-10 20:05:00,620 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5062 transitions. Word has length 88 [2022-01-10 20:05:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:00,621 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5062 transitions. [2022-01-10 20:05:00,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5062 transitions. [2022-01-10 20:05:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:00,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:00,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:00,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 20:05:00,626 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:00,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:00,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1357643429, now seen corresponding path program 1 times [2022-01-10 20:05:00,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:00,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656106612] [2022-01-10 20:05:00,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:00,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:00,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:00,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:00,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656106612] [2022-01-10 20:05:00,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656106612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:00,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:00,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:00,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015693210] [2022-01-10 20:05:00,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:00,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:00,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:00,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:00,665 INFO L87 Difference]: Start difference. First operand 3709 states and 5062 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:00,796 INFO L93 Difference]: Finished difference Result 4672 states and 6426 transitions. [2022-01-10 20:05:00,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:00,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:00,802 INFO L225 Difference]: With dead ends: 4672 [2022-01-10 20:05:00,802 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:05:00,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:00,804 INFO L933 BasicCegarLoop]: 951 mSDtfsCounter, 884 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:00,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [884 Valid, 1007 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:05:00,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:05:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.360323886639676) internal successors, (5040), 3708 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5040 transitions. [2022-01-10 20:05:00,910 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5040 transitions. Word has length 88 [2022-01-10 20:05:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:00,910 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5040 transitions. [2022-01-10 20:05:00,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:00,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5040 transitions. [2022-01-10 20:05:00,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:00,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:00,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:00,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 20:05:00,914 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:00,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:00,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1074448762, now seen corresponding path program 1 times [2022-01-10 20:05:00,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:00,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437437470] [2022-01-10 20:05:00,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:00,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:00,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:00,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437437470] [2022-01-10 20:05:00,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437437470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:00,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:00,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:00,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200913753] [2022-01-10 20:05:00,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:00,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:00,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:00,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:00,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:00,947 INFO L87 Difference]: Start difference. First operand 3709 states and 5040 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:01,098 INFO L93 Difference]: Finished difference Result 4671 states and 6381 transitions. [2022-01-10 20:05:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:01,104 INFO L225 Difference]: With dead ends: 4671 [2022-01-10 20:05:01,104 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:05:01,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:01,107 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 871 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:01,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 993 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:05:01,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:05:01,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3543859649122807) internal successors, (5018), 3708 states have internal predecessors, (5018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 5018 transitions. [2022-01-10 20:05:01,235 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 5018 transitions. Word has length 88 [2022-01-10 20:05:01,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:01,235 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 5018 transitions. [2022-01-10 20:05:01,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 5018 transitions. [2022-01-10 20:05:01,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:01,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:01,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:01,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 20:05:01,238 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:01,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:01,239 INFO L85 PathProgramCache]: Analyzing trace with hash 14138521, now seen corresponding path program 1 times [2022-01-10 20:05:01,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:01,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272364027] [2022-01-10 20:05:01,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:01,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:01,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:01,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:01,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272364027] [2022-01-10 20:05:01,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272364027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:01,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:01,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:01,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157313317] [2022-01-10 20:05:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:01,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:01,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:01,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:01,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:01,265 INFO L87 Difference]: Start difference. First operand 3709 states and 5018 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:01,406 INFO L93 Difference]: Finished difference Result 4670 states and 6336 transitions. [2022-01-10 20:05:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:01,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:01,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:01,412 INFO L225 Difference]: With dead ends: 4670 [2022-01-10 20:05:01,412 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:05:01,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:01,414 INFO L933 BasicCegarLoop]: 925 mSDtfsCounter, 858 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:01,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 979 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:01,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:05:01,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:05:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.3484480431848853) internal successors, (4996), 3708 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4996 transitions. [2022-01-10 20:05:01,529 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4996 transitions. Word has length 88 [2022-01-10 20:05:01,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:01,529 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 4996 transitions. [2022-01-10 20:05:01,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4996 transitions. [2022-01-10 20:05:01,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:01,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:01,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:01,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 20:05:01,533 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:01,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1196905272, now seen corresponding path program 1 times [2022-01-10 20:05:01,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:01,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650153324] [2022-01-10 20:05:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:01,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:01,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:01,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:01,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650153324] [2022-01-10 20:05:01,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650153324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:01,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:01,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:01,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235322710] [2022-01-10 20:05:01,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:01,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:01,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:01,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:01,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:01,556 INFO L87 Difference]: Start difference. First operand 3709 states and 4996 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:01,695 INFO L93 Difference]: Finished difference Result 4669 states and 6291 transitions. [2022-01-10 20:05:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:01,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:01,702 INFO L225 Difference]: With dead ends: 4669 [2022-01-10 20:05:01,703 INFO L226 Difference]: Without dead ends: 3709 [2022-01-10 20:05:01,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:01,705 INFO L933 BasicCegarLoop]: 912 mSDtfsCounter, 845 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:01,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 965 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:01,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3709 states. [2022-01-10 20:05:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3709 to 3709. [2022-01-10 20:05:01,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3709 states, 3705 states have (on average 1.34251012145749) internal successors, (4974), 3708 states have internal predecessors, (4974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4974 transitions. [2022-01-10 20:05:01,834 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4974 transitions. Word has length 88 [2022-01-10 20:05:01,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:01,835 INFO L470 AbstractCegarLoop]: Abstraction has 3709 states and 4974 transitions. [2022-01-10 20:05:01,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4974 transitions. [2022-01-10 20:05:01,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:01,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:01,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:01,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 20:05:01,839 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:01,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:01,839 INFO L85 PathProgramCache]: Analyzing trace with hash 81847511, now seen corresponding path program 1 times [2022-01-10 20:05:01,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:01,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375640721] [2022-01-10 20:05:01,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:01,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:01,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:01,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:01,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375640721] [2022-01-10 20:05:01,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375640721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:01,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:01,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:01,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881075385] [2022-01-10 20:05:01,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:01,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:01,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:01,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:01,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:01,881 INFO L87 Difference]: Start difference. First operand 3709 states and 4974 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:02,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:02,108 INFO L93 Difference]: Finished difference Result 5136 states and 6905 transitions. [2022-01-10 20:05:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:02,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:02,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:02,114 INFO L225 Difference]: With dead ends: 5136 [2022-01-10 20:05:02,114 INFO L226 Difference]: Without dead ends: 4183 [2022-01-10 20:05:02,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:05:02,116 INFO L933 BasicCegarLoop]: 987 mSDtfsCounter, 2025 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:02,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2025 Valid, 2558 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:02,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-01-10 20:05:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 3715. [2022-01-10 20:05:02,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3715 states, 3711 states have (on average 1.338183777957424) internal successors, (4966), 3714 states have internal predecessors, (4966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3715 states to 3715 states and 4966 transitions. [2022-01-10 20:05:02,251 INFO L78 Accepts]: Start accepts. Automaton has 3715 states and 4966 transitions. Word has length 88 [2022-01-10 20:05:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:02,252 INFO L470 AbstractCegarLoop]: Abstraction has 3715 states and 4966 transitions. [2022-01-10 20:05:02,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:02,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3715 states and 4966 transitions. [2022-01-10 20:05:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:02,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:02,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:02,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 20:05:02,255 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:02,256 INFO L85 PathProgramCache]: Analyzing trace with hash 362197400, now seen corresponding path program 1 times [2022-01-10 20:05:02,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:02,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293310672] [2022-01-10 20:05:02,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:02,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:02,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:02,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293310672] [2022-01-10 20:05:02,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293310672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:02,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:02,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:02,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41875570] [2022-01-10 20:05:02,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:02,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:02,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:02,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:02,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:02,292 INFO L87 Difference]: Start difference. First operand 3715 states and 4966 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:02,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:02,563 INFO L93 Difference]: Finished difference Result 5280 states and 7050 transitions. [2022-01-10 20:05:02,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:02,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:02,570 INFO L225 Difference]: With dead ends: 5280 [2022-01-10 20:05:02,570 INFO L226 Difference]: Without dead ends: 4335 [2022-01-10 20:05:02,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:05:02,572 INFO L933 BasicCegarLoop]: 943 mSDtfsCounter, 1811 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:02,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1811 Valid, 2872 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4335 states. [2022-01-10 20:05:02,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4335 to 3721. [2022-01-10 20:05:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3721 states, 3717 states have (on average 1.3338714016680118) internal successors, (4958), 3720 states have internal predecessors, (4958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3721 states to 3721 states and 4958 transitions. [2022-01-10 20:05:02,761 INFO L78 Accepts]: Start accepts. Automaton has 3721 states and 4958 transitions. Word has length 88 [2022-01-10 20:05:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:02,761 INFO L470 AbstractCegarLoop]: Abstraction has 3721 states and 4958 transitions. [2022-01-10 20:05:02,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3721 states and 4958 transitions. [2022-01-10 20:05:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:02,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:02,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:02,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 20:05:02,767 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:02,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:02,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1961830439, now seen corresponding path program 1 times [2022-01-10 20:05:02,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:02,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737739848] [2022-01-10 20:05:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:02,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:02,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:02,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737739848] [2022-01-10 20:05:02,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737739848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:02,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:02,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:02,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395766818] [2022-01-10 20:05:02,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:02,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:02,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:02,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:02,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:02,804 INFO L87 Difference]: Start difference. First operand 3721 states and 4958 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:03,035 INFO L93 Difference]: Finished difference Result 5361 states and 7112 transitions. [2022-01-10 20:05:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:03,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:03,042 INFO L225 Difference]: With dead ends: 5361 [2022-01-10 20:05:03,042 INFO L226 Difference]: Without dead ends: 4417 [2022-01-10 20:05:03,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:05:03,044 INFO L933 BasicCegarLoop]: 917 mSDtfsCounter, 1697 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:03,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 3007 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4417 states. [2022-01-10 20:05:03,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4417 to 3727. [2022-01-10 20:05:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 3723 states have (on average 1.3295729250604351) internal successors, (4950), 3726 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 4950 transitions. [2022-01-10 20:05:03,183 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 4950 transitions. Word has length 88 [2022-01-10 20:05:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:03,183 INFO L470 AbstractCegarLoop]: Abstraction has 3727 states and 4950 transitions. [2022-01-10 20:05:03,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:03,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 4950 transitions. [2022-01-10 20:05:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:03,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:03,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:03,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 20:05:03,187 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:03,187 INFO L85 PathProgramCache]: Analyzing trace with hash 397476570, now seen corresponding path program 1 times [2022-01-10 20:05:03,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:03,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634885203] [2022-01-10 20:05:03,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:03,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:03,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:03,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634885203] [2022-01-10 20:05:03,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634885203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:03,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:03,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:03,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014993644] [2022-01-10 20:05:03,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:03,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:03,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:03,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:03,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:03,215 INFO L87 Difference]: Start difference. First operand 3727 states and 4950 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:03,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:03,348 INFO L93 Difference]: Finished difference Result 4712 states and 6207 transitions. [2022-01-10 20:05:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:03,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:03,355 INFO L225 Difference]: With dead ends: 4712 [2022-01-10 20:05:03,355 INFO L226 Difference]: Without dead ends: 3727 [2022-01-10 20:05:03,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:03,358 INFO L933 BasicCegarLoop]: 891 mSDtfsCounter, 831 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:03,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 891 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:03,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2022-01-10 20:05:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3727. [2022-01-10 20:05:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 3723 states have (on average 1.3274241203330648) internal successors, (4942), 3726 states have internal predecessors, (4942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:03,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 4942 transitions. [2022-01-10 20:05:03,551 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 4942 transitions. Word has length 88 [2022-01-10 20:05:03,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:03,551 INFO L470 AbstractCegarLoop]: Abstraction has 3727 states and 4942 transitions. [2022-01-10 20:05:03,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:03,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 4942 transitions. [2022-01-10 20:05:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 20:05:03,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:03,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:03,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 20:05:03,555 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1642241051, now seen corresponding path program 1 times [2022-01-10 20:05:03,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:03,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171499086] [2022-01-10 20:05:03,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:03,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:03,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:03,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171499086] [2022-01-10 20:05:03,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171499086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:03,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:03,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:03,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539400961] [2022-01-10 20:05:03,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:03,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:03,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:03,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:03,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:03,588 INFO L87 Difference]: Start difference. First operand 3727 states and 4942 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:03,785 INFO L93 Difference]: Finished difference Result 5583 states and 7302 transitions. [2022-01-10 20:05:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:03,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 20:05:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:03,793 INFO L225 Difference]: With dead ends: 5583 [2022-01-10 20:05:03,793 INFO L226 Difference]: Without dead ends: 4607 [2022-01-10 20:05:03,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:03,797 INFO L933 BasicCegarLoop]: 884 mSDtfsCounter, 773 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:03,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 1472 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:03,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4607 states. [2022-01-10 20:05:04,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4607 to 4525. [2022-01-10 20:05:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4525 states, 4521 states have (on average 1.3147533731475338) internal successors, (5944), 4524 states have internal predecessors, (5944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:04,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4525 states to 4525 states and 5944 transitions. [2022-01-10 20:05:04,021 INFO L78 Accepts]: Start accepts. Automaton has 4525 states and 5944 transitions. Word has length 88 [2022-01-10 20:05:04,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:04,021 INFO L470 AbstractCegarLoop]: Abstraction has 4525 states and 5944 transitions. [2022-01-10 20:05:04,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:04,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4525 states and 5944 transitions. [2022-01-10 20:05:04,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 20:05:04,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:04,025 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:04,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 20:05:04,026 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:04,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:04,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2098484096, now seen corresponding path program 1 times [2022-01-10 20:05:04,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:04,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079032638] [2022-01-10 20:05:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:04,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:04,074 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 20:05:04,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:04,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079032638] [2022-01-10 20:05:04,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079032638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:04,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:04,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:04,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711949926] [2022-01-10 20:05:04,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:04,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:04,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:04,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:04,078 INFO L87 Difference]: Start difference. First operand 4525 states and 5944 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:04,336 INFO L93 Difference]: Finished difference Result 9605 states and 12828 transitions. [2022-01-10 20:05:04,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:04,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-01-10 20:05:04,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:04,349 INFO L225 Difference]: With dead ends: 9605 [2022-01-10 20:05:04,349 INFO L226 Difference]: Without dead ends: 7065 [2022-01-10 20:05:04,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:04,353 INFO L933 BasicCegarLoop]: 891 mSDtfsCounter, 131 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:04,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1735 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7065 states. [2022-01-10 20:05:04,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7065 to 7061. [2022-01-10 20:05:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 7057 states have (on average 1.320674507581125) internal successors, (9320), 7060 states have internal predecessors, (9320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9320 transitions. [2022-01-10 20:05:04,773 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9320 transitions. Word has length 103 [2022-01-10 20:05:04,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:04,774 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9320 transitions. [2022-01-10 20:05:04,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:04,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9320 transitions. [2022-01-10 20:05:04,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 20:05:04,780 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:04,780 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:04,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 20:05:04,780 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:04,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash -112284167, now seen corresponding path program 1 times [2022-01-10 20:05:04,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:04,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743085570] [2022-01-10 20:05:04,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:04,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:04,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:04,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743085570] [2022-01-10 20:05:04,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743085570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:04,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:04,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:04,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818384324] [2022-01-10 20:05:04,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:04,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:04,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:04,811 INFO L87 Difference]: Start difference. First operand 7061 states and 9320 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:05,204 INFO L93 Difference]: Finished difference Result 9629 states and 12824 transitions. [2022-01-10 20:05:05,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:05,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-10 20:05:05,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:05,212 INFO L225 Difference]: With dead ends: 9629 [2022-01-10 20:05:05,212 INFO L226 Difference]: Without dead ends: 1800 [2022-01-10 20:05:05,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,222 INFO L933 BasicCegarLoop]: 997 mSDtfsCounter, 112 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:05,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 1857 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:05,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2022-01-10 20:05:05,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2022-01-10 20:05:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1798 states have (on average 1.2647385984427142) internal successors, (2274), 1799 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2274 transitions. [2022-01-10 20:05:05,325 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2274 transitions. Word has length 104 [2022-01-10 20:05:05,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:05,325 INFO L470 AbstractCegarLoop]: Abstraction has 1800 states and 2274 transitions. [2022-01-10 20:05:05,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2274 transitions. [2022-01-10 20:05:05,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 20:05:05,326 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:05,326 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:05,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 20:05:05,327 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:05,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:05,327 INFO L85 PathProgramCache]: Analyzing trace with hash 39002452, now seen corresponding path program 1 times [2022-01-10 20:05:05,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:05,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009979006] [2022-01-10 20:05:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:05,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:05,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:05,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:05,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009979006] [2022-01-10 20:05:05,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009979006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:05,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:05,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:05,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314108978] [2022-01-10 20:05:05,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:05,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:05,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:05,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:05,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,374 INFO L87 Difference]: Start difference. First operand 1800 states and 2274 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:05,681 INFO L93 Difference]: Finished difference Result 5222 states and 6617 transitions. [2022-01-10 20:05:05,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:05,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-01-10 20:05:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:05,688 INFO L225 Difference]: With dead ends: 5222 [2022-01-10 20:05:05,688 INFO L226 Difference]: Without dead ends: 3454 [2022-01-10 20:05:05,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,691 INFO L933 BasicCegarLoop]: 688 mSDtfsCounter, 606 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:05,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [606 Valid, 1276 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:05,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2022-01-10 20:05:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3294. [2022-01-10 20:05:05,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 3292 states have (on average 1.2630619684082625) internal successors, (4158), 3293 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 4158 transitions. [2022-01-10 20:05:05,857 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 4158 transitions. Word has length 142 [2022-01-10 20:05:05,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:05,858 INFO L470 AbstractCegarLoop]: Abstraction has 3294 states and 4158 transitions. [2022-01-10 20:05:05,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:05,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 4158 transitions. [2022-01-10 20:05:05,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 20:05:05,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:05,860 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:05,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 20:05:05,860 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:05,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:05,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1970405139, now seen corresponding path program 1 times [2022-01-10 20:05:05,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:05,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447090228] [2022-01-10 20:05:05,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:05,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:05,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:05,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447090228] [2022-01-10 20:05:05,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447090228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:05,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:05,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:05,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413033010] [2022-01-10 20:05:05,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:05,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:05,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:05,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:05,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:05,894 INFO L87 Difference]: Start difference. First operand 3294 states and 4158 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:06,210 INFO L93 Difference]: Finished difference Result 9619 states and 12072 transitions. [2022-01-10 20:05:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:06,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-01-10 20:05:06,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:06,223 INFO L225 Difference]: With dead ends: 9619 [2022-01-10 20:05:06,224 INFO L226 Difference]: Without dead ends: 6403 [2022-01-10 20:05:06,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,229 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 609 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:06,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 1508 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:06,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6403 states. [2022-01-10 20:05:06,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 6259. [2022-01-10 20:05:06,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6259 states, 6257 states have (on average 1.2462841617388525) internal successors, (7798), 6258 states have internal predecessors, (7798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6259 states to 6259 states and 7798 transitions. [2022-01-10 20:05:06,605 INFO L78 Accepts]: Start accepts. Automaton has 6259 states and 7798 transitions. Word has length 142 [2022-01-10 20:05:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:06,605 INFO L470 AbstractCegarLoop]: Abstraction has 6259 states and 7798 transitions. [2022-01-10 20:05:06,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 6259 states and 7798 transitions. [2022-01-10 20:05:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 20:05:06,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:06,608 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:06,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 20:05:06,609 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:06,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:06,609 INFO L85 PathProgramCache]: Analyzing trace with hash -592321228, now seen corresponding path program 1 times [2022-01-10 20:05:06,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:06,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459466479] [2022-01-10 20:05:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:06,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:06,631 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:06,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:06,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459466479] [2022-01-10 20:05:06,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459466479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:06,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:06,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:06,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426800125] [2022-01-10 20:05:06,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:06,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:06,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:06,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:06,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,632 INFO L87 Difference]: Start difference. First operand 6259 states and 7798 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:06,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:06,934 INFO L93 Difference]: Finished difference Result 12411 states and 15472 transitions. [2022-01-10 20:05:06,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:06,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-01-10 20:05:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:06,944 INFO L225 Difference]: With dead ends: 12411 [2022-01-10 20:05:06,944 INFO L226 Difference]: Without dead ends: 6188 [2022-01-10 20:05:06,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:06,952 INFO L933 BasicCegarLoop]: 697 mSDtfsCounter, 692 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:06,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 698 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:06,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6188 states. [2022-01-10 20:05:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6188 to 6188. [2022-01-10 20:05:07,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6188 states, 6186 states have (on average 1.2471710313611382) internal successors, (7715), 6187 states have internal predecessors, (7715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6188 states to 6188 states and 7715 transitions. [2022-01-10 20:05:07,282 INFO L78 Accepts]: Start accepts. Automaton has 6188 states and 7715 transitions. Word has length 142 [2022-01-10 20:05:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:07,283 INFO L470 AbstractCegarLoop]: Abstraction has 6188 states and 7715 transitions. [2022-01-10 20:05:07,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6188 states and 7715 transitions. [2022-01-10 20:05:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:05:07,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:07,286 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:07,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 20:05:07,286 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:07,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:07,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1095339854, now seen corresponding path program 1 times [2022-01-10 20:05:07,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:07,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536716877] [2022-01-10 20:05:07,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:07,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:07,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:07,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536716877] [2022-01-10 20:05:07,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536716877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:07,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:07,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:07,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790727390] [2022-01-10 20:05:07,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:07,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:07,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:07,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,327 INFO L87 Difference]: Start difference. First operand 6188 states and 7715 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:07,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:07,905 INFO L93 Difference]: Finished difference Result 17574 states and 21863 transitions. [2022-01-10 20:05:07,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:07,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:05:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:07,922 INFO L225 Difference]: With dead ends: 17574 [2022-01-10 20:05:07,923 INFO L226 Difference]: Without dead ends: 11464 [2022-01-10 20:05:07,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:07,932 INFO L933 BasicCegarLoop]: 955 mSDtfsCounter, 487 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:07,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 1632 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:07,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2022-01-10 20:05:08,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 11460. [2022-01-10 20:05:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11460 states, 11458 states have (on average 1.238872403560831) internal successors, (14195), 11459 states have internal predecessors, (14195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11460 states to 11460 states and 14195 transitions. [2022-01-10 20:05:08,703 INFO L78 Accepts]: Start accepts. Automaton has 11460 states and 14195 transitions. Word has length 143 [2022-01-10 20:05:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:08,703 INFO L470 AbstractCegarLoop]: Abstraction has 11460 states and 14195 transitions. [2022-01-10 20:05:08,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:08,704 INFO L276 IsEmpty]: Start isEmpty. Operand 11460 states and 14195 transitions. [2022-01-10 20:05:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 20:05:08,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:08,708 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:08,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 20:05:08,709 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash -843199443, now seen corresponding path program 1 times [2022-01-10 20:05:08,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:08,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810171058] [2022-01-10 20:05:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:08,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:08,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:08,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810171058] [2022-01-10 20:05:08,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810171058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:08,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:08,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:08,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088433304] [2022-01-10 20:05:08,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:08,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:08,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:08,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:08,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:08,735 INFO L87 Difference]: Start difference. First operand 11460 states and 14195 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:09,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:09,423 INFO L93 Difference]: Finished difference Result 22772 states and 28221 transitions. [2022-01-10 20:05:09,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:09,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-01-10 20:05:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:09,440 INFO L225 Difference]: With dead ends: 22772 [2022-01-10 20:05:09,440 INFO L226 Difference]: Without dead ends: 11390 [2022-01-10 20:05:09,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:09,454 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 690 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:09,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 697 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11390 states. [2022-01-10 20:05:10,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11390 to 11390. [2022-01-10 20:05:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11390 states, 11388 states have (on average 1.239374780470671) internal successors, (14114), 11389 states have internal predecessors, (14114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11390 states to 11390 states and 14114 transitions. [2022-01-10 20:05:10,185 INFO L78 Accepts]: Start accepts. Automaton has 11390 states and 14114 transitions. Word has length 143 [2022-01-10 20:05:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:10,185 INFO L470 AbstractCegarLoop]: Abstraction has 11390 states and 14114 transitions. [2022-01-10 20:05:10,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 11390 states and 14114 transitions. [2022-01-10 20:05:10,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-10 20:05:10,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:10,189 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:10,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 20:05:10,190 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:10,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1226551512, now seen corresponding path program 1 times [2022-01-10 20:05:10,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:10,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307585492] [2022-01-10 20:05:10,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:10,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:10,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:10,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307585492] [2022-01-10 20:05:10,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307585492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:10,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:10,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:10,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619238700] [2022-01-10 20:05:10,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:10,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:10,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:10,233 INFO L87 Difference]: Start difference. First operand 11390 states and 14114 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:11,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:11,389 INFO L93 Difference]: Finished difference Result 32467 states and 40196 transitions. [2022-01-10 20:05:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:11,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-01-10 20:05:11,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:11,416 INFO L225 Difference]: With dead ends: 32467 [2022-01-10 20:05:11,416 INFO L226 Difference]: Without dead ends: 21155 [2022-01-10 20:05:11,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:11,428 INFO L933 BasicCegarLoop]: 924 mSDtfsCounter, 492 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:11,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 1599 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:11,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21155 states. [2022-01-10 20:05:12,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21155 to 21151. [2022-01-10 20:05:12,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21151 states, 21149 states have (on average 1.234668305830063) internal successors, (26112), 21150 states have internal predecessors, (26112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21151 states to 21151 states and 26112 transitions. [2022-01-10 20:05:12,705 INFO L78 Accepts]: Start accepts. Automaton has 21151 states and 26112 transitions. Word has length 144 [2022-01-10 20:05:12,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:12,706 INFO L470 AbstractCegarLoop]: Abstraction has 21151 states and 26112 transitions. [2022-01-10 20:05:12,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 21151 states and 26112 transitions. [2022-01-10 20:05:12,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-10 20:05:12,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:12,713 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:12,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 20:05:12,715 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:12,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1129876487, now seen corresponding path program 1 times [2022-01-10 20:05:12,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:12,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860971767] [2022-01-10 20:05:12,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:12,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:12,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:12,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860971767] [2022-01-10 20:05:12,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860971767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:12,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:12,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:12,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406030973] [2022-01-10 20:05:12,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:12,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:12,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:12,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:12,752 INFO L87 Difference]: Start difference. First operand 21151 states and 26112 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:14,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:14,051 INFO L93 Difference]: Finished difference Result 42155 states and 52058 transitions. [2022-01-10 20:05:14,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:14,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-01-10 20:05:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:14,078 INFO L225 Difference]: With dead ends: 42155 [2022-01-10 20:05:14,078 INFO L226 Difference]: Without dead ends: 21082 [2022-01-10 20:05:14,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:14,095 INFO L933 BasicCegarLoop]: 695 mSDtfsCounter, 688 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:14,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 696 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:14,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21082 states. [2022-01-10 20:05:15,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21082 to 21082. [2022-01-10 20:05:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21082 states, 21080 states have (on average 1.2349620493358633) internal successors, (26033), 21081 states have internal predecessors, (26033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:15,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21082 states to 21082 states and 26033 transitions. [2022-01-10 20:05:15,627 INFO L78 Accepts]: Start accepts. Automaton has 21082 states and 26033 transitions. Word has length 144 [2022-01-10 20:05:15,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:15,627 INFO L470 AbstractCegarLoop]: Abstraction has 21082 states and 26033 transitions. [2022-01-10 20:05:15,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:15,627 INFO L276 IsEmpty]: Start isEmpty. Operand 21082 states and 26033 transitions. [2022-01-10 20:05:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-10 20:05:15,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:15,633 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:15,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 20:05:15,634 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:15,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1790476349, now seen corresponding path program 1 times [2022-01-10 20:05:15,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:15,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214207163] [2022-01-10 20:05:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:15,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:15,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:15,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214207163] [2022-01-10 20:05:15,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214207163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:15,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:15,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:15,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196636685] [2022-01-10 20:05:15,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:15,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:15,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:15,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:15,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:15,670 INFO L87 Difference]: Start difference. First operand 21082 states and 26033 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:17,780 INFO L93 Difference]: Finished difference Result 60702 states and 74945 transitions. [2022-01-10 20:05:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:17,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-01-10 20:05:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:17,834 INFO L225 Difference]: With dead ends: 60702 [2022-01-10 20:05:17,834 INFO L226 Difference]: Without dead ends: 39698 [2022-01-10 20:05:17,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:17,860 INFO L933 BasicCegarLoop]: 845 mSDtfsCounter, 608 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:17,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [608 Valid, 1510 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:17,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39698 states. [2022-01-10 20:05:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39698 to 38990. [2022-01-10 20:05:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38990 states, 38988 states have (on average 1.2314814814814814) internal successors, (48013), 38989 states have internal predecessors, (48013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:20,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38990 states to 38990 states and 48013 transitions. [2022-01-10 20:05:20,297 INFO L78 Accepts]: Start accepts. Automaton has 38990 states and 48013 transitions. Word has length 145 [2022-01-10 20:05:20,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:20,297 INFO L470 AbstractCegarLoop]: Abstraction has 38990 states and 48013 transitions. [2022-01-10 20:05:20,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand 38990 states and 48013 transitions. [2022-01-10 20:05:20,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-10 20:05:20,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:20,307 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:20,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 20:05:20,308 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:20,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:20,308 INFO L85 PathProgramCache]: Analyzing trace with hash -150996966, now seen corresponding path program 1 times [2022-01-10 20:05:20,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:20,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066619572] [2022-01-10 20:05:20,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:20,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:20,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:20,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066619572] [2022-01-10 20:05:20,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066619572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:20,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:20,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:20,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364026868] [2022-01-10 20:05:20,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:20,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:20,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:20,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:20,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:20,332 INFO L87 Difference]: Start difference. First operand 38990 states and 48013 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:23,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:23,031 INFO L93 Difference]: Finished difference Result 77855 states and 95886 transitions. [2022-01-10 20:05:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:23,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-01-10 20:05:23,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:23,082 INFO L225 Difference]: With dead ends: 77855 [2022-01-10 20:05:23,082 INFO L226 Difference]: Without dead ends: 38922 [2022-01-10 20:05:23,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:23,188 INFO L933 BasicCegarLoop]: 694 mSDtfsCounter, 686 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:23,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [686 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:23,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38922 states. [2022-01-10 20:05:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38922 to 38922. [2022-01-10 20:05:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38922 states, 38920 states have (on average 1.2316546762589928) internal successors, (47936), 38921 states have internal predecessors, (47936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38922 states to 38922 states and 47936 transitions. [2022-01-10 20:05:25,550 INFO L78 Accepts]: Start accepts. Automaton has 38922 states and 47936 transitions. Word has length 145 [2022-01-10 20:05:25,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:25,550 INFO L470 AbstractCegarLoop]: Abstraction has 38922 states and 47936 transitions. [2022-01-10 20:05:25,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,550 INFO L276 IsEmpty]: Start isEmpty. Operand 38922 states and 47936 transitions. [2022-01-10 20:05:25,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-10 20:05:25,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:25,561 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:25,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 20:05:25,561 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:25,562 INFO L85 PathProgramCache]: Analyzing trace with hash 304839252, now seen corresponding path program 1 times [2022-01-10 20:05:25,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:25,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417439434] [2022-01-10 20:05:25,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:25,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:25,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:25,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417439434] [2022-01-10 20:05:25,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417439434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:25,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:25,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:25,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318180942] [2022-01-10 20:05:25,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:25,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:25,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:25,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:25,597 INFO L87 Difference]: Start difference. First operand 38922 states and 47936 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:29,886 INFO L93 Difference]: Finished difference Result 110725 states and 136222 transitions. [2022-01-10 20:05:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:29,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-01-10 20:05:29,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:30,008 INFO L225 Difference]: With dead ends: 110725 [2022-01-10 20:05:30,008 INFO L226 Difference]: Without dead ends: 71881 [2022-01-10 20:05:30,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:30,043 INFO L933 BasicCegarLoop]: 787 mSDtfsCounter, 608 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:30,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [608 Valid, 1450 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71881 states. [2022-01-10 20:05:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71881 to 71365. [2022-01-10 20:05:34,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71365 states, 71363 states have (on average 1.2290122332301052) internal successors, (87706), 71364 states have internal predecessors, (87706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71365 states to 71365 states and 87706 transitions. [2022-01-10 20:05:34,667 INFO L78 Accepts]: Start accepts. Automaton has 71365 states and 87706 transitions. Word has length 146 [2022-01-10 20:05:34,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:34,668 INFO L470 AbstractCegarLoop]: Abstraction has 71365 states and 87706 transitions. [2022-01-10 20:05:34,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:34,668 INFO L276 IsEmpty]: Start isEmpty. Operand 71365 states and 87706 transitions. [2022-01-10 20:05:34,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-10 20:05:34,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:34,685 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:34,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 20:05:34,688 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:34,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1856563851, now seen corresponding path program 1 times [2022-01-10 20:05:34,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:34,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149542160] [2022-01-10 20:05:34,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:34,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 20:05:34,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:34,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149542160] [2022-01-10 20:05:34,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149542160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:34,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:34,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:34,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307078065] [2022-01-10 20:05:34,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:34,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:34,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:34,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:34,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:34,766 INFO L87 Difference]: Start difference. First operand 71365 states and 87706 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:39,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:39,630 INFO L93 Difference]: Finished difference Result 142599 states and 175266 transitions. [2022-01-10 20:05:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:39,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-01-10 20:05:39,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:39,768 INFO L225 Difference]: With dead ends: 142599 [2022-01-10 20:05:39,768 INFO L226 Difference]: Without dead ends: 71298 [2022-01-10 20:05:39,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:39,832 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 684 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:39,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 694 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:39,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71298 states. [2022-01-10 20:05:44,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71298 to 71298. [2022-01-10 20:05:44,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71298 states, 71296 states have (on average 1.229115237881508) internal successors, (87631), 71297 states have internal predecessors, (87631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:44,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71298 states to 71298 states and 87631 transitions. [2022-01-10 20:05:44,772 INFO L78 Accepts]: Start accepts. Automaton has 71298 states and 87631 transitions. Word has length 146 [2022-01-10 20:05:44,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:44,773 INFO L470 AbstractCegarLoop]: Abstraction has 71298 states and 87631 transitions. [2022-01-10 20:05:44,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:44,773 INFO L276 IsEmpty]: Start isEmpty. Operand 71298 states and 87631 transitions. [2022-01-10 20:05:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-10 20:05:44,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:44,823 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:44,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 20:05:44,823 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash -249982187, now seen corresponding path program 1 times [2022-01-10 20:05:44,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:44,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223924359] [2022-01-10 20:05:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:44,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:44,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:44,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223924359] [2022-01-10 20:05:44,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223924359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:44,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:44,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:44,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692124162] [2022-01-10 20:05:44,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:44,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:44,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:44,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:44,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:44,892 INFO L87 Difference]: Start difference. First operand 71298 states and 87631 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:51,388 INFO L93 Difference]: Finished difference Result 142934 states and 176073 transitions. [2022-01-10 20:05:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:51,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2022-01-10 20:05:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:51,663 INFO L225 Difference]: With dead ends: 142934 [2022-01-10 20:05:51,664 INFO L226 Difference]: Without dead ends: 103434 [2022-01-10 20:05:51,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:51,708 INFO L933 BasicCegarLoop]: 1203 mSDtfsCounter, 516 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:51,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 1883 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:51,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103434 states. [2022-01-10 20:05:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103434 to 103434. [2022-01-10 20:05:58,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103434 states, 103432 states have (on average 1.2230934333668497) internal successors, (126507), 103433 states have internal predecessors, (126507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:58,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103434 states to 103434 states and 126507 transitions. [2022-01-10 20:05:58,869 INFO L78 Accepts]: Start accepts. Automaton has 103434 states and 126507 transitions. Word has length 147 [2022-01-10 20:05:58,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:58,870 INFO L470 AbstractCegarLoop]: Abstraction has 103434 states and 126507 transitions. [2022-01-10 20:05:58,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:58,870 INFO L276 IsEmpty]: Start isEmpty. Operand 103434 states and 126507 transitions. [2022-01-10 20:05:58,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-01-10 20:05:58,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:58,916 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:58,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 20:05:58,917 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:58,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:58,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1344819708, now seen corresponding path program 1 times [2022-01-10 20:05:58,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:58,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866524623] [2022-01-10 20:05:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:58,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:58,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:58,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866524623] [2022-01-10 20:05:58,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866524623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:58,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:58,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:58,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339382449] [2022-01-10 20:05:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:58,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:58,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:58,987 INFO L87 Difference]: Start difference. First operand 103434 states and 126507 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)