/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.09.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:05:20,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:05:20,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:05:20,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 20:05:20,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 20:05:20,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 20:05:20,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 20:05:20,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 20:05:20,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 20:05:20,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 20:05:20,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 20:05:20,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 20:05:20,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:05:20,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:05:20,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:05:20,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:05:20,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:05:20,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:05:20,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:05:20,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:05:20,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:05:20,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:05:20,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:05:20,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:05:20,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:05:20,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:05:20,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:05:20,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:05:20,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:05:20,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 20:05:20,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 20:05:20,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 20:05:20,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 20:05:20,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 20:05:20,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 20:05:20,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 20:05:20,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 20:05:20,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 20:05:20,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:05:20,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:05:20,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:05:20,134 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 20:05:20,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:05:20,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:05:20,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:05:20,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:05:20,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:05:20,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:05:20,158 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:05:20,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:05:20,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:05:20,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:05:20,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:05:20,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:05:20,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:05:20,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:05:20,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:05:20,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:05:20,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:05:20,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:05:20,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:05:20,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:05:20,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:05:20,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:05:20,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:05:20,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:05:20,164 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:05:20,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:05:20,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:05:20,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:05:20,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:05:20,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:05:20,366 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:05:20,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.09.cil-2.c [2022-01-10 20:05:20,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43de80c7/63be143fc241458abd864db23aad090b/FLAGf831a87ac [2022-01-10 20:05:20,834 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:05:20,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.09.cil-2.c [2022-01-10 20:05:20,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43de80c7/63be143fc241458abd864db23aad090b/FLAGf831a87ac [2022-01-10 20:05:20,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43de80c7/63be143fc241458abd864db23aad090b [2022-01-10 20:05:20,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:05:20,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:05:20,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:05:20,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:05:20,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:05:20,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:05:20" (1/1) ... [2022-01-10 20:05:20,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510d6fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:20, skipping insertion in model container [2022-01-10 20:05:20,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:05:20" (1/1) ... [2022-01-10 20:05:20,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:05:20,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:05:21,029 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.09.cil-2.c[911,924] [2022-01-10 20:05:21,066 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.09.cil-2.c[8416,8429] [2022-01-10 20:05:21,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:05:21,142 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:05:21,150 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.09.cil-2.c[911,924] [2022-01-10 20:05:21,173 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.09.cil-2.c[8416,8429] [2022-01-10 20:05:21,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:05:21,223 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:05:21,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21 WrapperNode [2022-01-10 20:05:21,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:05:21,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:05:21,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:05:21,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:05:21,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,304 INFO L137 Inliner]: procedures = 74, calls = 89, calls flagged for inlining = 84, calls inlined = 216, statements flattened = 3173 [2022-01-10 20:05:21,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:05:21,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:05:21,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:05:21,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:05:21,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:05:21,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:05:21,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:05:21,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:05:21,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (1/1) ... [2022-01-10 20:05:21,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:05:21,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:05:21,439 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 20:05:21,445 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 20:05:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:05:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:05:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:05:21,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:05:21,571 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:05:21,572 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:05:22,942 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume !(1bv32 == ~q_free~0); [2022-01-10 20:05:22,943 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 20:05:22,943 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:05:22,962 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:05:22,962 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-10 20:05:22,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:05:22 BoogieIcfgContainer [2022-01-10 20:05:22,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:05:22,966 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:05:22,966 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:05:22,967 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:05:22,969 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:05:22" (1/1) ... [2022-01-10 20:05:23,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:05:23 BasicIcfg [2022-01-10 20:05:23,248 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:05:23,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:05:23,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:05:23,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:05:23,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:05:20" (1/4) ... [2022-01-10 20:05:23,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44af68ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:05:23, skipping insertion in model container [2022-01-10 20:05:23,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:05:21" (2/4) ... [2022-01-10 20:05:23,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44af68ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:05:23, skipping insertion in model container [2022-01-10 20:05:23,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:05:22" (3/4) ... [2022-01-10 20:05:23,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44af68ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:05:23, skipping insertion in model container [2022-01-10 20:05:23,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:05:23" (4/4) ... [2022-01-10 20:05:23,254 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.09.cil-2.cTransformedIcfg [2022-01-10 20:05:23,257 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:05:23,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 20:05:23,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:05:23,311 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 20:05:23,311 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 20:05:23,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 1327 states, 1322 states have (on average 1.5204236006051437) internal successors, (2010), 1326 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:05:23,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:23,349 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 20:05:23,350 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 20:05:23,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:23,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1803597385, now seen corresponding path program 1 times [2022-01-10 20:05:23,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:23,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786020494] [2022-01-10 20:05:23,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:23,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:23,596 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 20:05:23,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:23,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786020494] [2022-01-10 20:05:23,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786020494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:23,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:23,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:23,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961663169] [2022-01-10 20:05:23,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:23,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:23,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:23,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:23,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:23,644 INFO L87 Difference]: Start difference. First operand has 1327 states, 1322 states have (on average 1.5204236006051437) internal successors, (2010), 1326 states have internal predecessors, (2010), 0 states have call successors, (0), 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 20:05:23,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:23,839 INFO L93 Difference]: Finished difference Result 2649 states and 4004 transitions. [2022-01-10 20:05:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:23,841 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 20:05:23,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:23,860 INFO L225 Difference]: With dead ends: 2649 [2022-01-10 20:05:23,860 INFO L226 Difference]: Without dead ends: 1449 [2022-01-10 20:05:23,869 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 20:05:23,873 INFO L933 BasicCegarLoop]: 1964 mSDtfsCounter, 185 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 3896 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 20:05:23,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 3896 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:23,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-01-10 20:05:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1445. [2022-01-10 20:05:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1441 states have (on average 1.4885496183206106) internal successors, (2145), 1444 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:23,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2145 transitions. [2022-01-10 20:05:23,943 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2145 transitions. Word has length 44 [2022-01-10 20:05:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:23,943 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 2145 transitions. [2022-01-10 20:05:23,943 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 20:05:23,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2145 transitions. [2022-01-10 20:05:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 20:05:23,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:23,944 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 20:05:23,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:05:23,945 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 20:05:23,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:23,945 INFO L85 PathProgramCache]: Analyzing trace with hash -305920585, now seen corresponding path program 1 times [2022-01-10 20:05:23,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:23,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933066144] [2022-01-10 20:05:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:23,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:24,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:24,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933066144] [2022-01-10 20:05:24,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933066144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:24,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:24,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:24,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891139734] [2022-01-10 20:05:24,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:24,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:24,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:24,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:24,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:24,008 INFO L87 Difference]: Start difference. First operand 1445 states and 2145 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 20:05:24,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:24,061 INFO L93 Difference]: Finished difference Result 1863 states and 2750 transitions. [2022-01-10 20:05:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:24,061 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 20:05:24,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:24,066 INFO L225 Difference]: With dead ends: 1863 [2022-01-10 20:05:24,066 INFO L226 Difference]: Without dead ends: 1623 [2022-01-10 20:05:24,067 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 20:05:24,068 INFO L933 BasicCegarLoop]: 1949 mSDtfsCounter, 1923 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 2084 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 20:05:24,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1923 Valid, 2084 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:24,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2022-01-10 20:05:24,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1615. [2022-01-10 20:05:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1611 states have (on average 1.4773432650527623) internal successors, (2380), 1614 states have internal predecessors, (2380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2380 transitions. [2022-01-10 20:05:24,103 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2380 transitions. Word has length 44 [2022-01-10 20:05:24,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:24,104 INFO L470 AbstractCegarLoop]: Abstraction has 1615 states and 2380 transitions. [2022-01-10 20:05:24,104 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 20:05:24,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2380 transitions. [2022-01-10 20:05:24,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 20:05:24,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:24,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:05:24,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 20:05:24,106 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 20:05:24,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:24,106 INFO L85 PathProgramCache]: Analyzing trace with hash 126152625, now seen corresponding path program 1 times [2022-01-10 20:05:24,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:24,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390356885] [2022-01-10 20:05:24,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:24,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:24,152 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 20:05:24,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:24,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390356885] [2022-01-10 20:05:24,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390356885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:24,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:24,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:24,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627086743] [2022-01-10 20:05:24,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:24,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:24,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:24,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:24,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:24,154 INFO L87 Difference]: Start difference. First operand 1615 states and 2380 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 20:05:24,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:24,248 INFO L93 Difference]: Finished difference Result 2337 states and 3414 transitions. [2022-01-10 20:05:24,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:24,249 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 20:05:24,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:24,254 INFO L225 Difference]: With dead ends: 2337 [2022-01-10 20:05:24,254 INFO L226 Difference]: Without dead ends: 1941 [2022-01-10 20:05:24,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:24,256 INFO L933 BasicCegarLoop]: 1943 mSDtfsCounter, 1907 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 2081 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 20:05:24,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1907 Valid, 2081 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:24,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2022-01-10 20:05:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1933. [2022-01-10 20:05:24,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1929 states have (on average 1.4582685329186107) internal successors, (2813), 1932 states have internal predecessors, (2813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2813 transitions. [2022-01-10 20:05:24,295 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2813 transitions. Word has length 45 [2022-01-10 20:05:24,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:24,296 INFO L470 AbstractCegarLoop]: Abstraction has 1933 states and 2813 transitions. [2022-01-10 20:05:24,296 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 20:05:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2813 transitions. [2022-01-10 20:05:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 20:05:24,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:24,297 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 20:05:24,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 20:05:24,298 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 20:05:24,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:24,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2084306055, now seen corresponding path program 1 times [2022-01-10 20:05:24,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:24,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140644033] [2022-01-10 20:05:24,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:24,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:24,344 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 20:05:24,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:24,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140644033] [2022-01-10 20:05:24,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140644033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:24,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:24,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:24,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117284543] [2022-01-10 20:05:24,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:24,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:24,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:24,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:24,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:24,346 INFO L87 Difference]: Start difference. First operand 1933 states and 2813 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 20:05:24,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:24,420 INFO L93 Difference]: Finished difference Result 3301 states and 4715 transitions. [2022-01-10 20:05:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:24,421 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 20:05:24,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:24,427 INFO L225 Difference]: With dead ends: 3301 [2022-01-10 20:05:24,427 INFO L226 Difference]: Without dead ends: 2605 [2022-01-10 20:05:24,429 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 20:05:24,429 INFO L933 BasicCegarLoop]: 1946 mSDtfsCounter, 1902 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 2111 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 20:05:24,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 2111 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:24,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2022-01-10 20:05:24,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2601. [2022-01-10 20:05:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 2597 states have (on average 1.424335772044667) internal successors, (3699), 2600 states have internal predecessors, (3699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 3699 transitions. [2022-01-10 20:05:24,498 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 3699 transitions. Word has length 59 [2022-01-10 20:05:24,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:24,499 INFO L470 AbstractCegarLoop]: Abstraction has 2601 states and 3699 transitions. [2022-01-10 20:05:24,499 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 20:05:24,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 3699 transitions. [2022-01-10 20:05:24,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 20:05:24,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:24,500 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 20:05:24,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 20:05:24,501 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 20:05:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:24,501 INFO L85 PathProgramCache]: Analyzing trace with hash 27649143, now seen corresponding path program 1 times [2022-01-10 20:05:24,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:24,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869172743] [2022-01-10 20:05:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:24,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:24,548 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 20:05:24,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:24,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869172743] [2022-01-10 20:05:24,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869172743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:24,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:24,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:24,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163139011] [2022-01-10 20:05:24,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:24,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:24,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:24,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:24,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:24,550 INFO L87 Difference]: Start difference. First operand 2601 states and 3699 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 20:05:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:24,669 INFO L93 Difference]: Finished difference Result 5225 states and 7281 transitions. [2022-01-10 20:05:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:24,670 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 20:05:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:24,680 INFO L225 Difference]: With dead ends: 5225 [2022-01-10 20:05:24,680 INFO L226 Difference]: Without dead ends: 3905 [2022-01-10 20:05:24,682 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 20:05:24,682 INFO L933 BasicCegarLoop]: 2097 mSDtfsCounter, 146 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 4030 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 20:05:24,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 4030 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2022-01-10 20:05:24,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3905. [2022-01-10 20:05:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3901 states have (on average 1.3911817482696744) internal successors, (5427), 3904 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:24,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 5427 transitions. [2022-01-10 20:05:24,797 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 5427 transitions. Word has length 61 [2022-01-10 20:05:24,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:24,802 INFO L470 AbstractCegarLoop]: Abstraction has 3905 states and 5427 transitions. [2022-01-10 20:05:24,802 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 20:05:24,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 5427 transitions. [2022-01-10 20:05:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 20:05:24,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:24,808 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 20:05:24,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 20:05:24,808 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash -140717557, now seen corresponding path program 1 times [2022-01-10 20:05:24,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:24,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448026683] [2022-01-10 20:05:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:24,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:24,903 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 20:05:24,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:24,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448026683] [2022-01-10 20:05:24,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448026683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:24,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:24,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:24,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462929851] [2022-01-10 20:05:24,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:24,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:24,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:24,906 INFO L87 Difference]: Start difference. First operand 3905 states and 5427 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 20:05:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:25,088 INFO L93 Difference]: Finished difference Result 8985 states and 12311 transitions. [2022-01-10 20:05:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:25,089 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 20:05:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:25,109 INFO L225 Difference]: With dead ends: 8985 [2022-01-10 20:05:25,109 INFO L226 Difference]: Without dead ends: 6445 [2022-01-10 20:05:25,115 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 20:05:25,118 INFO L933 BasicCegarLoop]: 1947 mSDtfsCounter, 131 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 3847 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 20:05:25,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 3847 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:25,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2022-01-10 20:05:25,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 6441. [2022-01-10 20:05:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6441 states, 6437 states have (on average 1.367562529128476) internal successors, (8803), 6440 states have internal predecessors, (8803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6441 states to 6441 states and 8803 transitions. [2022-01-10 20:05:25,339 INFO L78 Accepts]: Start accepts. Automaton has 6441 states and 8803 transitions. Word has length 103 [2022-01-10 20:05:25,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:25,340 INFO L470 AbstractCegarLoop]: Abstraction has 6441 states and 8803 transitions. [2022-01-10 20:05:25,340 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 20:05:25,340 INFO L276 IsEmpty]: Start isEmpty. Operand 6441 states and 8803 transitions. [2022-01-10 20:05:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 20:05:25,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:25,350 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 20:05:25,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 20:05:25,350 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:25,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:25,351 INFO L85 PathProgramCache]: Analyzing trace with hash -380300134, now seen corresponding path program 1 times [2022-01-10 20:05:25,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:25,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587104495] [2022-01-10 20:05:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:25,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:25,421 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 20:05:25,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:25,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587104495] [2022-01-10 20:05:25,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587104495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:25,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:25,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:25,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912210574] [2022-01-10 20:05:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:25,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:25,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:25,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:25,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:25,423 INFO L87 Difference]: Start difference. First operand 6441 states and 8803 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 20:05:25,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:25,616 INFO L93 Difference]: Finished difference Result 9009 states and 12307 transitions. [2022-01-10 20:05:25,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:25,617 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 20:05:25,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:25,621 INFO L225 Difference]: With dead ends: 9009 [2022-01-10 20:05:25,622 INFO L226 Difference]: Without dead ends: 1180 [2022-01-10 20:05:25,629 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 20:05:25,630 INFO L933 BasicCegarLoop]: 2053 mSDtfsCounter, 112 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 3969 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 20:05:25,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 3969 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-01-10 20:05:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1180. [2022-01-10 20:05:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1178 states have (on average 1.4915110356536503) internal successors, (1757), 1179 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1757 transitions. [2022-01-10 20:05:25,662 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1757 transitions. Word has length 104 [2022-01-10 20:05:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:25,662 INFO L470 AbstractCegarLoop]: Abstraction has 1180 states and 1757 transitions. [2022-01-10 20:05:25,662 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 20:05:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1757 transitions. [2022-01-10 20:05:25,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:25,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:25,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:25,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 20:05:25,664 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 20:05:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:25,665 INFO L85 PathProgramCache]: Analyzing trace with hash -158983062, now seen corresponding path program 1 times [2022-01-10 20:05:25,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:25,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703138208] [2022-01-10 20:05:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:25,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:25,718 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 20:05:25,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:25,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703138208] [2022-01-10 20:05:25,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703138208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:25,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:25,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:25,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385118232] [2022-01-10 20:05:25,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:25,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:25,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:25,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:25,720 INFO L87 Difference]: Start difference. First operand 1180 states and 1757 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:25,783 INFO L93 Difference]: Finished difference Result 3323 states and 4932 transitions. [2022-01-10 20:05:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:25,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:25,789 INFO L225 Difference]: With dead ends: 3323 [2022-01-10 20:05:25,790 INFO L226 Difference]: Without dead ends: 2160 [2022-01-10 20:05:25,792 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 20:05:25,792 INFO L933 BasicCegarLoop]: 1751 mSDtfsCounter, 1633 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 3293 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 20:05:25,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1633 Valid, 3293 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2160 states. [2022-01-10 20:05:25,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2160 to 2156. [2022-01-10 20:05:25,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4842154131847725) internal successors, (3197), 2155 states have internal predecessors, (3197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3197 transitions. [2022-01-10 20:05:25,845 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3197 transitions. Word has length 132 [2022-01-10 20:05:25,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:25,845 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3197 transitions. [2022-01-10 20:05:25,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3197 transitions. [2022-01-10 20:05:25,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:25,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:25,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:25,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 20:05:25,846 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 20:05:25,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:25,847 INFO L85 PathProgramCache]: Analyzing trace with hash -747307382, now seen corresponding path program 1 times [2022-01-10 20:05:25,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:25,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067221963] [2022-01-10 20:05:25,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:25,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:25,889 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 20:05:25,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:25,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067221963] [2022-01-10 20:05:25,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067221963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:25,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:25,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:25,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149067490] [2022-01-10 20:05:25,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:25,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:25,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:25,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:25,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:25,891 INFO L87 Difference]: Start difference. First operand 2156 states and 3197 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:25,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:25,951 INFO L93 Difference]: Finished difference Result 4294 states and 6365 transitions. [2022-01-10 20:05:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:25,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:25,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:25,958 INFO L225 Difference]: With dead ends: 4294 [2022-01-10 20:05:25,958 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:25,962 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 20:05:25,963 INFO L933 BasicCegarLoop]: 1745 mSDtfsCounter, 1733 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 1745 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 20:05:25,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1733 Valid, 1745 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:25,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4805013927576602) internal successors, (3189), 2155 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3189 transitions. [2022-01-10 20:05:26,024 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3189 transitions. Word has length 132 [2022-01-10 20:05:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:26,027 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3189 transitions. [2022-01-10 20:05:26,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3189 transitions. [2022-01-10 20:05:26,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:26,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:26,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:26,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 20:05:26,028 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 20:05:26,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:26,029 INFO L85 PathProgramCache]: Analyzing trace with hash -904832918, now seen corresponding path program 1 times [2022-01-10 20:05:26,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:26,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397724243] [2022-01-10 20:05:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:26,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:26,077 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 20:05:26,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:26,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397724243] [2022-01-10 20:05:26,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397724243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:26,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:26,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:26,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824701264] [2022-01-10 20:05:26,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:26,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:26,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:26,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:26,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:26,079 INFO L87 Difference]: Start difference. First operand 2156 states and 3189 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:26,147 INFO L93 Difference]: Finished difference Result 4293 states and 6348 transitions. [2022-01-10 20:05:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:26,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:26,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:26,154 INFO L225 Difference]: With dead ends: 4293 [2022-01-10 20:05:26,154 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:26,157 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 20:05:26,157 INFO L933 BasicCegarLoop]: 1740 mSDtfsCounter, 1727 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 1740 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 20:05:26,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1727 Valid, 1740 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:26,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:26,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:26,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4767873723305478) internal successors, (3181), 2155 states have internal predecessors, (3181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3181 transitions. [2022-01-10 20:05:26,209 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3181 transitions. Word has length 132 [2022-01-10 20:05:26,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:26,210 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3181 transitions. [2022-01-10 20:05:26,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3181 transitions. [2022-01-10 20:05:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:26,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:26,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:26,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 20:05:26,211 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 20:05:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:26,211 INFO L85 PathProgramCache]: Analyzing trace with hash 59916938, now seen corresponding path program 1 times [2022-01-10 20:05:26,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:26,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351485356] [2022-01-10 20:05:26,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:26,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:26,245 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 20:05:26,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:26,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351485356] [2022-01-10 20:05:26,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351485356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:26,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:26,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:26,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350385985] [2022-01-10 20:05:26,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:26,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:26,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:26,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:26,247 INFO L87 Difference]: Start difference. First operand 2156 states and 3181 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:26,299 INFO L93 Difference]: Finished difference Result 4292 states and 6331 transitions. [2022-01-10 20:05:26,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:26,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:26,305 INFO L225 Difference]: With dead ends: 4292 [2022-01-10 20:05:26,305 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:26,307 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 20:05:26,308 INFO L933 BasicCegarLoop]: 1735 mSDtfsCounter, 1721 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 1735 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 20:05:26,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1721 Valid, 1735 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:26,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:26,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4730733519034356) internal successors, (3173), 2155 states have internal predecessors, (3173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3173 transitions. [2022-01-10 20:05:26,357 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3173 transitions. Word has length 132 [2022-01-10 20:05:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:26,357 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3173 transitions. [2022-01-10 20:05:26,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3173 transitions. [2022-01-10 20:05:26,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:26,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:26,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:26,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 20:05:26,359 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 20:05:26,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:26,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1060869226, now seen corresponding path program 1 times [2022-01-10 20:05:26,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:26,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314040129] [2022-01-10 20:05:26,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:26,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:26,393 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 20:05:26,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:26,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314040129] [2022-01-10 20:05:26,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314040129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:26,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:26,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:26,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902763573] [2022-01-10 20:05:26,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:26,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:26,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:26,395 INFO L87 Difference]: Start difference. First operand 2156 states and 3173 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:26,450 INFO L93 Difference]: Finished difference Result 4291 states and 6314 transitions. [2022-01-10 20:05:26,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:26,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:26,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:26,454 INFO L225 Difference]: With dead ends: 4291 [2022-01-10 20:05:26,454 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:26,457 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 20:05:26,457 INFO L933 BasicCegarLoop]: 1730 mSDtfsCounter, 1715 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 1730 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 20:05:26,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 1730 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:26,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4693593314763231) internal successors, (3165), 2155 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3165 transitions. [2022-01-10 20:05:26,521 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3165 transitions. Word has length 132 [2022-01-10 20:05:26,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:26,522 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3165 transitions. [2022-01-10 20:05:26,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3165 transitions. [2022-01-10 20:05:26,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:26,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:26,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:26,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 20:05:26,523 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 20:05:26,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:26,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1647347338, now seen corresponding path program 1 times [2022-01-10 20:05:26,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:26,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107131431] [2022-01-10 20:05:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:26,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:26,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:26,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107131431] [2022-01-10 20:05:26,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107131431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:26,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:26,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:26,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759597908] [2022-01-10 20:05:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:26,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:26,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:26,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:26,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:26,555 INFO L87 Difference]: Start difference. First operand 2156 states and 3165 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:26,607 INFO L93 Difference]: Finished difference Result 4290 states and 6297 transitions. [2022-01-10 20:05:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:26,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:26,611 INFO L225 Difference]: With dead ends: 4290 [2022-01-10 20:05:26,611 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:26,614 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 20:05:26,614 INFO L933 BasicCegarLoop]: 1725 mSDtfsCounter, 1709 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 1725 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 20:05:26,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1709 Valid, 1725 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4656453110492107) internal successors, (3157), 2155 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3157 transitions. [2022-01-10 20:05:26,663 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3157 transitions. Word has length 132 [2022-01-10 20:05:26,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:26,664 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3157 transitions. [2022-01-10 20:05:26,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3157 transitions. [2022-01-10 20:05:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:26,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:26,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:26,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 20:05:26,665 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 20:05:26,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:26,665 INFO L85 PathProgramCache]: Analyzing trace with hash 834981994, now seen corresponding path program 1 times [2022-01-10 20:05:26,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:26,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106000620] [2022-01-10 20:05:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:26,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:26,700 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 20:05:26,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:26,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106000620] [2022-01-10 20:05:26,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106000620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:26,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:26,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:26,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777751332] [2022-01-10 20:05:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:26,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:26,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:26,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:26,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:26,702 INFO L87 Difference]: Start difference. First operand 2156 states and 3157 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:26,767 INFO L93 Difference]: Finished difference Result 4289 states and 6280 transitions. [2022-01-10 20:05:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:26,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:26,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:26,772 INFO L225 Difference]: With dead ends: 4289 [2022-01-10 20:05:26,772 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:26,776 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 20:05:26,777 INFO L933 BasicCegarLoop]: 1720 mSDtfsCounter, 1703 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 1720 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 20:05:26,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1703 Valid, 1720 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:26,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4619312906220985) internal successors, (3149), 2155 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3149 transitions. [2022-01-10 20:05:26,869 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3149 transitions. Word has length 132 [2022-01-10 20:05:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:26,869 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3149 transitions. [2022-01-10 20:05:26,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3149 transitions. [2022-01-10 20:05:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:26,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:26,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:26,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 20:05:26,870 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 20:05:26,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:26,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1685075318, now seen corresponding path program 1 times [2022-01-10 20:05:26,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:26,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350543997] [2022-01-10 20:05:26,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:26,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:26,904 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 20:05:26,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:26,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350543997] [2022-01-10 20:05:26,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350543997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:26,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:26,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:26,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991421707] [2022-01-10 20:05:26,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:26,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:26,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:26,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:26,906 INFO L87 Difference]: Start difference. First operand 2156 states and 3149 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:26,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:26,983 INFO L93 Difference]: Finished difference Result 4288 states and 6263 transitions. [2022-01-10 20:05:26,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:26,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:26,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:26,988 INFO L225 Difference]: With dead ends: 4288 [2022-01-10 20:05:26,988 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:26,991 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 20:05:26,992 INFO L933 BasicCegarLoop]: 1715 mSDtfsCounter, 1697 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 1715 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 20:05:26,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 1715 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:26,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.458217270194986) internal successors, (3141), 2155 states have internal predecessors, (3141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3141 transitions. [2022-01-10 20:05:27,060 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3141 transitions. Word has length 132 [2022-01-10 20:05:27,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:27,060 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3141 transitions. [2022-01-10 20:05:27,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3141 transitions. [2022-01-10 20:05:27,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:27,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:27,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:27,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 20:05:27,061 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 20:05:27,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:27,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1835863146, now seen corresponding path program 1 times [2022-01-10 20:05:27,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:27,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192330476] [2022-01-10 20:05:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:27,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:27,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:27,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:27,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192330476] [2022-01-10 20:05:27,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192330476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:27,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:27,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:27,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642369648] [2022-01-10 20:05:27,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:27,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:27,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:27,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:27,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:27,093 INFO L87 Difference]: Start difference. First operand 2156 states and 3141 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:27,162 INFO L93 Difference]: Finished difference Result 4287 states and 6246 transitions. [2022-01-10 20:05:27,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:27,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:27,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:27,166 INFO L225 Difference]: With dead ends: 4287 [2022-01-10 20:05:27,166 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:27,169 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 20:05:27,170 INFO L933 BasicCegarLoop]: 1710 mSDtfsCounter, 1691 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1710 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 20:05:27,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1691 Valid, 1710 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:27,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4545032497678738) internal successors, (3133), 2155 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3133 transitions. [2022-01-10 20:05:27,231 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3133 transitions. Word has length 132 [2022-01-10 20:05:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:27,231 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3133 transitions. [2022-01-10 20:05:27,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3133 transitions. [2022-01-10 20:05:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:27,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:27,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:27,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 20:05:27,233 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 20:05:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1810894474, now seen corresponding path program 1 times [2022-01-10 20:05:27,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:27,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518081472] [2022-01-10 20:05:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:27,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:27,265 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 20:05:27,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:27,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518081472] [2022-01-10 20:05:27,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518081472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:27,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:27,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:27,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355158092] [2022-01-10 20:05:27,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:27,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:27,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:27,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:27,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:27,267 INFO L87 Difference]: Start difference. First operand 2156 states and 3133 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:27,344 INFO L93 Difference]: Finished difference Result 4286 states and 6229 transitions. [2022-01-10 20:05:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:27,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:27,348 INFO L225 Difference]: With dead ends: 4286 [2022-01-10 20:05:27,348 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:27,351 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 20:05:27,351 INFO L933 BasicCegarLoop]: 1705 mSDtfsCounter, 1685 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 1705 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 20:05:27,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1685 Valid, 1705 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:27,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:27,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:27,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4507892293407614) internal successors, (3125), 2155 states have internal predecessors, (3125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3125 transitions. [2022-01-10 20:05:27,411 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3125 transitions. Word has length 132 [2022-01-10 20:05:27,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:27,411 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3125 transitions. [2022-01-10 20:05:27,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3125 transitions. [2022-01-10 20:05:27,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:27,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:27,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:27,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 20:05:27,413 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 20:05:27,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:27,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1376499606, now seen corresponding path program 1 times [2022-01-10 20:05:27,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:27,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691078925] [2022-01-10 20:05:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:27,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:27,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:27,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691078925] [2022-01-10 20:05:27,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691078925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:27,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:27,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:27,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861038273] [2022-01-10 20:05:27,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:27,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:27,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:27,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:27,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:27,447 INFO L87 Difference]: Start difference. First operand 2156 states and 3125 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:27,538 INFO L93 Difference]: Finished difference Result 4285 states and 6212 transitions. [2022-01-10 20:05:27,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:27,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:27,542 INFO L225 Difference]: With dead ends: 4285 [2022-01-10 20:05:27,542 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:27,544 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 20:05:27,544 INFO L933 BasicCegarLoop]: 1676 mSDtfsCounter, 1565 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:27,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1565 Valid, 1774 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.43686165273909) internal successors, (3095), 2155 states have internal predecessors, (3095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3095 transitions. [2022-01-10 20:05:27,608 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3095 transitions. Word has length 132 [2022-01-10 20:05:27,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:27,608 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3095 transitions. [2022-01-10 20:05:27,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3095 transitions. [2022-01-10 20:05:27,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:27,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:27,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:27,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 20:05:27,609 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 20:05:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:27,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1733818889, now seen corresponding path program 1 times [2022-01-10 20:05:27,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:27,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137599658] [2022-01-10 20:05:27,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:27,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:27,639 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 20:05:27,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:27,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137599658] [2022-01-10 20:05:27,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137599658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:27,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:27,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:27,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893455699] [2022-01-10 20:05:27,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:27,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:27,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:27,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:27,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:27,641 INFO L87 Difference]: Start difference. First operand 2156 states and 3095 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:27,745 INFO L93 Difference]: Finished difference Result 4284 states and 6151 transitions. [2022-01-10 20:05:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:27,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:27,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:27,750 INFO L225 Difference]: With dead ends: 4284 [2022-01-10 20:05:27,750 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:27,753 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 20:05:27,754 INFO L933 BasicCegarLoop]: 1659 mSDtfsCounter, 1548 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:27,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 1756 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:27,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:27,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:27,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4229340761374187) internal successors, (3065), 2155 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3065 transitions. [2022-01-10 20:05:27,821 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3065 transitions. Word has length 132 [2022-01-10 20:05:27,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:27,822 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3065 transitions. [2022-01-10 20:05:27,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3065 transitions. [2022-01-10 20:05:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:27,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:27,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:27,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 20:05:27,823 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 20:05:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash 345972392, now seen corresponding path program 1 times [2022-01-10 20:05:27,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147798621] [2022-01-10 20:05:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:27,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:27,854 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 20:05:27,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:27,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147798621] [2022-01-10 20:05:27,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147798621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:27,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:27,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:27,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985301663] [2022-01-10 20:05:27,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:27,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:27,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:27,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:27,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:27,855 INFO L87 Difference]: Start difference. First operand 2156 states and 3065 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:27,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:27,950 INFO L93 Difference]: Finished difference Result 4283 states and 6090 transitions. [2022-01-10 20:05:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:27,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:27,957 INFO L225 Difference]: With dead ends: 4283 [2022-01-10 20:05:27,957 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:27,962 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 20:05:27,963 INFO L933 BasicCegarLoop]: 1642 mSDtfsCounter, 1531 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:27,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1531 Valid, 1738 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:28,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.4090064995357474) internal successors, (3035), 2155 states have internal predecessors, (3035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3035 transitions. [2022-01-10 20:05:28,031 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3035 transitions. Word has length 132 [2022-01-10 20:05:28,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:28,031 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3035 transitions. [2022-01-10 20:05:28,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3035 transitions. [2022-01-10 20:05:28,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:28,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:28,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:28,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 20:05:28,033 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 20:05:28,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:28,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1927881017, now seen corresponding path program 1 times [2022-01-10 20:05:28,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:28,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283209446] [2022-01-10 20:05:28,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:28,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:28,075 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 20:05:28,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:28,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283209446] [2022-01-10 20:05:28,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283209446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:28,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:28,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:28,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808807199] [2022-01-10 20:05:28,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:28,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:28,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:28,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:28,077 INFO L87 Difference]: Start difference. First operand 2156 states and 3035 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:28,170 INFO L93 Difference]: Finished difference Result 4282 states and 6029 transitions. [2022-01-10 20:05:28,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:28,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:28,174 INFO L225 Difference]: With dead ends: 4282 [2022-01-10 20:05:28,174 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:28,177 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 20:05:28,177 INFO L933 BasicCegarLoop]: 1625 mSDtfsCounter, 1514 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:28,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 1720 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:28,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:28,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.395078922934076) internal successors, (3005), 2155 states have internal predecessors, (3005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3005 transitions. [2022-01-10 20:05:28,243 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3005 transitions. Word has length 132 [2022-01-10 20:05:28,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:28,243 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 3005 transitions. [2022-01-10 20:05:28,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3005 transitions. [2022-01-10 20:05:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:28,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:28,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:28,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 20:05:28,244 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 20:05:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:28,245 INFO L85 PathProgramCache]: Analyzing trace with hash -603987482, now seen corresponding path program 1 times [2022-01-10 20:05:28,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:28,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934190435] [2022-01-10 20:05:28,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:28,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:28,281 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 20:05:28,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:28,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934190435] [2022-01-10 20:05:28,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934190435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:28,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:28,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:28,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728676763] [2022-01-10 20:05:28,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:28,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:28,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:28,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:28,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:28,283 INFO L87 Difference]: Start difference. First operand 2156 states and 3005 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:28,387 INFO L93 Difference]: Finished difference Result 4280 states and 5966 transitions. [2022-01-10 20:05:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:28,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:28,391 INFO L225 Difference]: With dead ends: 4280 [2022-01-10 20:05:28,391 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:28,393 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 20:05:28,395 INFO L933 BasicCegarLoop]: 1608 mSDtfsCounter, 1496 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:28,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 1702 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:28,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.3811513463324048) internal successors, (2975), 2155 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2975 transitions. [2022-01-10 20:05:28,495 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2975 transitions. Word has length 132 [2022-01-10 20:05:28,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:28,495 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 2975 transitions. [2022-01-10 20:05:28,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2975 transitions. [2022-01-10 20:05:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:28,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:28,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:28,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 20:05:28,497 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1731101573, now seen corresponding path program 1 times [2022-01-10 20:05:28,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:28,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924678000] [2022-01-10 20:05:28,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:28,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:28,548 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 20:05:28,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:28,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924678000] [2022-01-10 20:05:28,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924678000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:28,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:28,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:28,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384860264] [2022-01-10 20:05:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:28,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:28,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:28,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:28,550 INFO L87 Difference]: Start difference. First operand 2156 states and 2975 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:28,675 INFO L93 Difference]: Finished difference Result 4279 states and 5905 transitions. [2022-01-10 20:05:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:28,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:28,679 INFO L225 Difference]: With dead ends: 4279 [2022-01-10 20:05:28,679 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:28,682 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 20:05:28,682 INFO L933 BasicCegarLoop]: 1591 mSDtfsCounter, 1479 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:28,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 1684 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:28,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.3672237697307335) internal successors, (2945), 2155 states have internal predecessors, (2945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2945 transitions. [2022-01-10 20:05:28,755 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2945 transitions. Word has length 132 [2022-01-10 20:05:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:28,755 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 2945 transitions. [2022-01-10 20:05:28,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2945 transitions. [2022-01-10 20:05:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:28,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:28,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:28,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 20:05:28,756 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash 401973412, now seen corresponding path program 1 times [2022-01-10 20:05:28,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:28,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725637189] [2022-01-10 20:05:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:28,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:28,787 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 20:05:28,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:28,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725637189] [2022-01-10 20:05:28,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725637189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:28,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:28,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:28,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41208892] [2022-01-10 20:05:28,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:28,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:28,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:28,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:28,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:28,788 INFO L87 Difference]: Start difference. First operand 2156 states and 2945 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:28,883 INFO L93 Difference]: Finished difference Result 4278 states and 5844 transitions. [2022-01-10 20:05:28,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:28,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:28,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:28,887 INFO L225 Difference]: With dead ends: 4278 [2022-01-10 20:05:28,887 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:28,890 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 20:05:28,890 INFO L933 BasicCegarLoop]: 1574 mSDtfsCounter, 1462 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:28,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1462 Valid, 1666 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:28,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.3532961931290621) internal successors, (2915), 2155 states have internal predecessors, (2915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2915 transitions. [2022-01-10 20:05:28,991 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2915 transitions. Word has length 132 [2022-01-10 20:05:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:28,991 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 2915 transitions. [2022-01-10 20:05:28,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:28,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2915 transitions. [2022-01-10 20:05:28,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:28,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:28,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:28,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 20:05:28,992 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 20:05:28,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:28,992 INFO L85 PathProgramCache]: Analyzing trace with hash -466771773, now seen corresponding path program 1 times [2022-01-10 20:05:28,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:28,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305973141] [2022-01-10 20:05:28,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:28,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:29,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:29,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305973141] [2022-01-10 20:05:29,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305973141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:29,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:29,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:29,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797788701] [2022-01-10 20:05:29,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:29,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:29,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:29,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:29,022 INFO L87 Difference]: Start difference. First operand 2156 states and 2915 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:29,117 INFO L93 Difference]: Finished difference Result 4277 states and 5783 transitions. [2022-01-10 20:05:29,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:29,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:29,122 INFO L225 Difference]: With dead ends: 4277 [2022-01-10 20:05:29,122 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:29,125 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 20:05:29,125 INFO L933 BasicCegarLoop]: 1557 mSDtfsCounter, 1445 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:29,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1445 Valid, 1648 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:29,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:29,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:29,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.3393686165273908) internal successors, (2885), 2155 states have internal predecessors, (2885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2885 transitions. [2022-01-10 20:05:29,202 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2885 transitions. Word has length 132 [2022-01-10 20:05:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:29,202 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 2885 transitions. [2022-01-10 20:05:29,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2885 transitions. [2022-01-10 20:05:29,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:29,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:29,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:29,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 20:05:29,203 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 20:05:29,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:29,203 INFO L85 PathProgramCache]: Analyzing trace with hash -462418846, now seen corresponding path program 1 times [2022-01-10 20:05:29,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:29,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225842992] [2022-01-10 20:05:29,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:29,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:29,237 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 20:05:29,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:29,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225842992] [2022-01-10 20:05:29,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225842992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:29,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:29,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:29,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600595572] [2022-01-10 20:05:29,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:29,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:29,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:29,239 INFO L87 Difference]: Start difference. First operand 2156 states and 2885 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:29,347 INFO L93 Difference]: Finished difference Result 4276 states and 5722 transitions. [2022-01-10 20:05:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:29,351 INFO L225 Difference]: With dead ends: 4276 [2022-01-10 20:05:29,351 INFO L226 Difference]: Without dead ends: 2156 [2022-01-10 20:05:29,353 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 20:05:29,353 INFO L933 BasicCegarLoop]: 1540 mSDtfsCounter, 1428 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:29,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 1630 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:29,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-01-10 20:05:29,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2022-01-10 20:05:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2154 states have (on average 1.3254410399257195) internal successors, (2855), 2155 states have internal predecessors, (2855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2855 transitions. [2022-01-10 20:05:29,427 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2855 transitions. Word has length 132 [2022-01-10 20:05:29,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:29,427 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 2855 transitions. [2022-01-10 20:05:29,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2855 transitions. [2022-01-10 20:05:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:29,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:29,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:29,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 20:05:29,428 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 20:05:29,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash 815082241, now seen corresponding path program 1 times [2022-01-10 20:05:29,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:29,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637287455] [2022-01-10 20:05:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:29,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:29,471 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 20:05:29,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:29,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637287455] [2022-01-10 20:05:29,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637287455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:29,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:29,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:29,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648168212] [2022-01-10 20:05:29,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:29,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:29,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:29,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:29,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:29,473 INFO L87 Difference]: Start difference. First operand 2156 states and 2855 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:29,695 INFO L93 Difference]: Finished difference Result 5031 states and 6724 transitions. [2022-01-10 20:05:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:29,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:29,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:29,700 INFO L225 Difference]: With dead ends: 5031 [2022-01-10 20:05:29,700 INFO L226 Difference]: Without dead ends: 2918 [2022-01-10 20:05:29,703 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 20:05:29,703 INFO L933 BasicCegarLoop]: 1677 mSDtfsCounter, 4425 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4425 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:29,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4425 Valid, 3249 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:29,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-01-10 20:05:29,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2162. [2022-01-10 20:05:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2162 states, 2160 states have (on average 1.3143518518518518) internal successors, (2839), 2161 states have internal predecessors, (2839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2162 states to 2162 states and 2839 transitions. [2022-01-10 20:05:29,839 INFO L78 Accepts]: Start accepts. Automaton has 2162 states and 2839 transitions. Word has length 132 [2022-01-10 20:05:29,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:29,839 INFO L470 AbstractCegarLoop]: Abstraction has 2162 states and 2839 transitions. [2022-01-10 20:05:29,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2162 states and 2839 transitions. [2022-01-10 20:05:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:29,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:29,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:29,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 20:05:29,841 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 20:05:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash -155208766, now seen corresponding path program 1 times [2022-01-10 20:05:29,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:29,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116168329] [2022-01-10 20:05:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:29,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:29,881 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 20:05:29,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:29,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116168329] [2022-01-10 20:05:29,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116168329] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:29,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:29,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:29,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073240890] [2022-01-10 20:05:29,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:29,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:29,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:29,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:29,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:29,884 INFO L87 Difference]: Start difference. First operand 2162 states and 2839 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:30,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:30,127 INFO L93 Difference]: Finished difference Result 5287 states and 6989 transitions. [2022-01-10 20:05:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:30,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:30,133 INFO L225 Difference]: With dead ends: 5287 [2022-01-10 20:05:30,133 INFO L226 Difference]: Without dead ends: 3182 [2022-01-10 20:05:30,136 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 20:05:30,136 INFO L933 BasicCegarLoop]: 1629 mSDtfsCounter, 4131 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 3771 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:30,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4131 Valid, 3771 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2022-01-10 20:05:30,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 2168. [2022-01-10 20:05:30,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 2166 states have (on average 1.3033240997229918) internal successors, (2823), 2167 states have internal predecessors, (2823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:30,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 2823 transitions. [2022-01-10 20:05:30,267 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 2823 transitions. Word has length 132 [2022-01-10 20:05:30,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:30,267 INFO L470 AbstractCegarLoop]: Abstraction has 2168 states and 2823 transitions. [2022-01-10 20:05:30,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 2823 transitions. [2022-01-10 20:05:30,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:30,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:30,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:30,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 20:05:30,268 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 20:05:30,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash -35088893, now seen corresponding path program 1 times [2022-01-10 20:05:30,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:30,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136699263] [2022-01-10 20:05:30,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:30,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:30,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:05:30,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:30,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136699263] [2022-01-10 20:05:30,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136699263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:30,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:30,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:30,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660285762] [2022-01-10 20:05:30,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:30,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:30,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:30,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:30,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:30,313 INFO L87 Difference]: Start difference. First operand 2168 states and 2823 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:30,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:30,633 INFO L93 Difference]: Finished difference Result 5424 states and 7099 transitions. [2022-01-10 20:05:30,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:30,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:30,639 INFO L225 Difference]: With dead ends: 5424 [2022-01-10 20:05:30,639 INFO L226 Difference]: Without dead ends: 3320 [2022-01-10 20:05:30,642 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 20:05:30,642 INFO L933 BasicCegarLoop]: 1599 mSDtfsCounter, 3973 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3973 SdHoareTripleChecker+Valid, 3998 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:30,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3973 Valid, 3998 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:30,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2022-01-10 20:05:30,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 2174. [2022-01-10 20:05:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2172 states have (on average 1.2923572744014733) internal successors, (2807), 2173 states have internal predecessors, (2807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2807 transitions. [2022-01-10 20:05:30,773 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2807 transitions. Word has length 132 [2022-01-10 20:05:30,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:30,773 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 2807 transitions. [2022-01-10 20:05:30,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:30,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2807 transitions. [2022-01-10 20:05:30,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:30,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:30,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:30,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 20:05:30,776 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 20:05:30,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash -990610172, now seen corresponding path program 1 times [2022-01-10 20:05:30,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:30,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761975786] [2022-01-10 20:05:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:30,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:30,818 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 20:05:30,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:30,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761975786] [2022-01-10 20:05:30,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761975786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:30,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:30,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:30,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932935348] [2022-01-10 20:05:30,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:30,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:30,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:30,820 INFO L87 Difference]: Start difference. First operand 2174 states and 2807 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:31,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:31,091 INFO L93 Difference]: Finished difference Result 6158 states and 7948 transitions. [2022-01-10 20:05:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:31,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:31,098 INFO L225 Difference]: With dead ends: 6158 [2022-01-10 20:05:31,098 INFO L226 Difference]: Without dead ends: 4050 [2022-01-10 20:05:31,103 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 20:05:31,104 INFO L933 BasicCegarLoop]: 1505 mSDtfsCounter, 1328 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:31,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 2839 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:31,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4050 states. [2022-01-10 20:05:31,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 4042. [2022-01-10 20:05:31,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4042 states, 4040 states have (on average 1.2856435643564357) internal successors, (5194), 4041 states have internal predecessors, (5194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:31,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 5194 transitions. [2022-01-10 20:05:31,322 INFO L78 Accepts]: Start accepts. Automaton has 4042 states and 5194 transitions. Word has length 132 [2022-01-10 20:05:31,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:31,322 INFO L470 AbstractCegarLoop]: Abstraction has 4042 states and 5194 transitions. [2022-01-10 20:05:31,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4042 states and 5194 transitions. [2022-01-10 20:05:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:31,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:31,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:31,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 20:05:31,323 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 20:05:31,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash 434172291, now seen corresponding path program 1 times [2022-01-10 20:05:31,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:31,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270844076] [2022-01-10 20:05:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:31,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:31,374 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 20:05:31,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:31,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270844076] [2022-01-10 20:05:31,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270844076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:31,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:31,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:31,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146165742] [2022-01-10 20:05:31,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:31,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:31,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:31,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:31,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:31,375 INFO L87 Difference]: Start difference. First operand 4042 states and 5194 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:31,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:31,639 INFO L93 Difference]: Finished difference Result 8053 states and 10346 transitions. [2022-01-10 20:05:31,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:31,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:31,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:31,647 INFO L225 Difference]: With dead ends: 8053 [2022-01-10 20:05:31,647 INFO L226 Difference]: Without dead ends: 4042 [2022-01-10 20:05:31,651 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 20:05:31,652 INFO L933 BasicCegarLoop]: 1486 mSDtfsCounter, 1301 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:31,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 1572 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:31,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2022-01-10 20:05:31,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 4042. [2022-01-10 20:05:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4042 states, 4040 states have (on average 1.276980198019802) internal successors, (5159), 4041 states have internal predecessors, (5159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:31,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 5159 transitions. [2022-01-10 20:05:31,869 INFO L78 Accepts]: Start accepts. Automaton has 4042 states and 5159 transitions. Word has length 132 [2022-01-10 20:05:31,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:31,869 INFO L470 AbstractCegarLoop]: Abstraction has 4042 states and 5159 transitions. [2022-01-10 20:05:31,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand 4042 states and 5159 transitions. [2022-01-10 20:05:31,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 20:05:31,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:31,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:31,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 20:05:31,870 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 20:05:31,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash 645523204, now seen corresponding path program 1 times [2022-01-10 20:05:31,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:31,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892766800] [2022-01-10 20:05:31,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:31,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:31,908 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 20:05:31,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:31,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892766800] [2022-01-10 20:05:31,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892766800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:31,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:31,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:05:31,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095187896] [2022-01-10 20:05:31,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:31,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:31,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:31,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:31,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:31,910 INFO L87 Difference]: Start difference. First operand 4042 states and 5159 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:32,381 INFO L93 Difference]: Finished difference Result 11868 states and 15148 transitions. [2022-01-10 20:05:32,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:32,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 20:05:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:32,396 INFO L225 Difference]: With dead ends: 11868 [2022-01-10 20:05:32,397 INFO L226 Difference]: Without dead ends: 7864 [2022-01-10 20:05:32,403 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 20:05:32,403 INFO L933 BasicCegarLoop]: 1486 mSDtfsCounter, 1327 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:32,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 2806 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:32,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7864 states. [2022-01-10 20:05:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7864 to 7590. [2022-01-10 20:05:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7590 states, 7588 states have (on average 1.27161307327359) internal successors, (9649), 7589 states have internal predecessors, (9649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7590 states to 7590 states and 9649 transitions. [2022-01-10 20:05:32,982 INFO L78 Accepts]: Start accepts. Automaton has 7590 states and 9649 transitions. Word has length 132 [2022-01-10 20:05:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:32,982 INFO L470 AbstractCegarLoop]: Abstraction has 7590 states and 9649 transitions. [2022-01-10 20:05:32,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:32,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7590 states and 9649 transitions. [2022-01-10 20:05:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 20:05:32,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:32,987 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, 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 20:05:32,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 20:05:32,987 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 20:05:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1629997941, now seen corresponding path program 1 times [2022-01-10 20:05:32,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565388473] [2022-01-10 20:05:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:32,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:33,054 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 20:05:33,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:33,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565388473] [2022-01-10 20:05:33,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565388473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:33,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:33,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:33,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501864343] [2022-01-10 20:05:33,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:33,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:33,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:33,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:33,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:33,056 INFO L87 Difference]: Start difference. First operand 7590 states and 9649 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:33,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:33,908 INFO L93 Difference]: Finished difference Result 22439 states and 28564 transitions. [2022-01-10 20:05:33,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:33,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2022-01-10 20:05:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:33,932 INFO L225 Difference]: With dead ends: 22439 [2022-01-10 20:05:33,932 INFO L226 Difference]: Without dead ends: 14893 [2022-01-10 20:05:33,941 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 20:05:33,942 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 1365 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:33,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1365 Valid, 2803 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:33,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14893 states. [2022-01-10 20:05:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14893 to 14357. [2022-01-10 20:05:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14357 states, 14355 states have (on average 1.2691745036572624) internal successors, (18219), 14356 states have internal predecessors, (18219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:34,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14357 states to 14357 states and 18219 transitions. [2022-01-10 20:05:34,783 INFO L78 Accepts]: Start accepts. Automaton has 14357 states and 18219 transitions. Word has length 214 [2022-01-10 20:05:34,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:34,784 INFO L470 AbstractCegarLoop]: Abstraction has 14357 states and 18219 transitions. [2022-01-10 20:05:34,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 14357 states and 18219 transitions. [2022-01-10 20:05:34,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 20:05:34,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:34,836 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, 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 20:05:34,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 20:05:34,836 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 20:05:34,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:34,836 INFO L85 PathProgramCache]: Analyzing trace with hash 601165258, now seen corresponding path program 1 times [2022-01-10 20:05:34,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:34,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732355114] [2022-01-10 20:05:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:34,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:34,909 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 20:05:34,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:34,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732355114] [2022-01-10 20:05:34,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732355114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:34,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:34,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 20:05:34,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427659637] [2022-01-10 20:05:34,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:34,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 20:05:34,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:34,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 20:05:34,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 20:05:34,910 INFO L87 Difference]: Start difference. First operand 14357 states and 18219 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:36,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:36,733 INFO L93 Difference]: Finished difference Result 41010 states and 52328 transitions. [2022-01-10 20:05:36,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 20:05:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2022-01-10 20:05:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:36,771 INFO L225 Difference]: With dead ends: 41010 [2022-01-10 20:05:36,771 INFO L226 Difference]: Without dead ends: 26749 [2022-01-10 20:05:36,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 20:05:36,789 INFO L933 BasicCegarLoop]: 1472 mSDtfsCounter, 3222 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 5261 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:36,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3222 Valid, 5261 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 20:05:36,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26749 states. [2022-01-10 20:05:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26749 to 14405. [2022-01-10 20:05:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14405 states, 14403 states have (on average 1.2582100951190724) internal successors, (18122), 14404 states have internal predecessors, (18122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14405 states to 14405 states and 18122 transitions. [2022-01-10 20:05:37,796 INFO L78 Accepts]: Start accepts. Automaton has 14405 states and 18122 transitions. Word has length 214 [2022-01-10 20:05:37,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:37,796 INFO L470 AbstractCegarLoop]: Abstraction has 14405 states and 18122 transitions. [2022-01-10 20:05:37,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:37,796 INFO L276 IsEmpty]: Start isEmpty. Operand 14405 states and 18122 transitions. [2022-01-10 20:05:37,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 20:05:37,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:37,802 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, 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 20:05:37,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 20:05:37,802 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 20:05:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:37,803 INFO L85 PathProgramCache]: Analyzing trace with hash 951965195, now seen corresponding path program 1 times [2022-01-10 20:05:37,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:37,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934555675] [2022-01-10 20:05:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:37,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:37,850 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 20:05:37,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:37,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934555675] [2022-01-10 20:05:37,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934555675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:37,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:37,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:37,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113285122] [2022-01-10 20:05:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:37,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:37,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:37,851 INFO L87 Difference]: Start difference. First operand 14405 states and 18122 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:39,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:39,609 INFO L93 Difference]: Finished difference Result 42535 states and 53217 transitions. [2022-01-10 20:05:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:39,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2022-01-10 20:05:39,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:39,649 INFO L225 Difference]: With dead ends: 42535 [2022-01-10 20:05:39,649 INFO L226 Difference]: Without dead ends: 28255 [2022-01-10 20:05:39,679 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 20:05:39,680 INFO L933 BasicCegarLoop]: 1738 mSDtfsCounter, 1250 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 20:05:39,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1250 Valid, 3191 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:39,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28255 states. [2022-01-10 20:05:41,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28255 to 27751. [2022-01-10 20:05:41,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27751 states, 27749 states have (on average 1.2454863238314895) internal successors, (34561), 27750 states have internal predecessors, (34561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:41,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27751 states to 27751 states and 34561 transitions. [2022-01-10 20:05:41,867 INFO L78 Accepts]: Start accepts. Automaton has 27751 states and 34561 transitions. Word has length 214 [2022-01-10 20:05:41,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:41,867 INFO L470 AbstractCegarLoop]: Abstraction has 27751 states and 34561 transitions. [2022-01-10 20:05:41,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:41,868 INFO L276 IsEmpty]: Start isEmpty. Operand 27751 states and 34561 transitions. [2022-01-10 20:05:41,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 20:05:41,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:41,880 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, 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 20:05:41,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 20:05:41,880 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 20:05:41,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1958753067, now seen corresponding path program 1 times [2022-01-10 20:05:41,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:41,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945592206] [2022-01-10 20:05:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:41,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:41,911 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 20:05:41,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:41,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945592206] [2022-01-10 20:05:41,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945592206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:41,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:41,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:41,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273208154] [2022-01-10 20:05:41,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:41,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:41,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:41,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:41,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:41,913 INFO L87 Difference]: Start difference. First operand 27751 states and 34561 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:43,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:43,676 INFO L93 Difference]: Finished difference Result 55336 states and 68924 transitions. [2022-01-10 20:05:43,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:43,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 214 [2022-01-10 20:05:43,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:43,716 INFO L225 Difference]: With dead ends: 55336 [2022-01-10 20:05:43,716 INFO L226 Difference]: Without dead ends: 27633 [2022-01-10 20:05:43,740 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 20:05:43,740 INFO L933 BasicCegarLoop]: 1484 mSDtfsCounter, 1479 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1485 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 20:05:43,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 1485 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27633 states. [2022-01-10 20:05:45,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27633 to 27633. [2022-01-10 20:05:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27633 states, 27631 states have (on average 1.2457384821396258) internal successors, (34421), 27632 states have internal predecessors, (34421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27633 states to 27633 states and 34421 transitions. [2022-01-10 20:05:45,884 INFO L78 Accepts]: Start accepts. Automaton has 27633 states and 34421 transitions. Word has length 214 [2022-01-10 20:05:45,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:45,884 INFO L470 AbstractCegarLoop]: Abstraction has 27633 states and 34421 transitions. [2022-01-10 20:05:45,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:45,884 INFO L276 IsEmpty]: Start isEmpty. Operand 27633 states and 34421 transitions. [2022-01-10 20:05:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-10 20:05:45,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:45,895 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, 1, 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 20:05:45,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 20:05:45,896 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 20:05:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:45,896 INFO L85 PathProgramCache]: Analyzing trace with hash 706436416, now seen corresponding path program 1 times [2022-01-10 20:05:45,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:45,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829681076] [2022-01-10 20:05:45,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:45,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:45,955 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 20:05:45,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:45,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829681076] [2022-01-10 20:05:45,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829681076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:45,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:45,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:45,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891824539] [2022-01-10 20:05:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:45,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:45,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:45,957 INFO L87 Difference]: Start difference. First operand 27633 states and 34421 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:49,348 INFO L93 Difference]: Finished difference Result 79886 states and 99266 transitions. [2022-01-10 20:05:49,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:49,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2022-01-10 20:05:49,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:49,424 INFO L225 Difference]: With dead ends: 79886 [2022-01-10 20:05:49,424 INFO L226 Difference]: Without dead ends: 52378 [2022-01-10 20:05:49,447 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 20:05:49,447 INFO L933 BasicCegarLoop]: 2254 mSDtfsCounter, 1147 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3717 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 20:05:49,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 3717 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52378 states. [2022-01-10 20:05:53,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52378 to 52374. [2022-01-10 20:05:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52374 states, 52372 states have (on average 1.239402734285496) internal successors, (64910), 52373 states have internal predecessors, (64910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:53,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52374 states to 52374 states and 64910 transitions. [2022-01-10 20:05:53,427 INFO L78 Accepts]: Start accepts. Automaton has 52374 states and 64910 transitions. Word has length 215 [2022-01-10 20:05:53,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:05:53,428 INFO L470 AbstractCegarLoop]: Abstraction has 52374 states and 64910 transitions. [2022-01-10 20:05:53,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:53,428 INFO L276 IsEmpty]: Start isEmpty. Operand 52374 states and 64910 transitions. [2022-01-10 20:05:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-10 20:05:53,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:05:53,445 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, 1, 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 20:05:53,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 20:05:53,446 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:05:53,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:05:53,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1877880033, now seen corresponding path program 1 times [2022-01-10 20:05:53,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:05:53,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872931469] [2022-01-10 20:05:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:05:53,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:05:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:05:53,475 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 20:05:53,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:05:53,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872931469] [2022-01-10 20:05:53,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872931469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:05:53,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:05:53,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:05:53,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365280061] [2022-01-10 20:05:53,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:05:53,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:05:53,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:05:53,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:05:53,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:05:53,477 INFO L87 Difference]: Start difference. First operand 52374 states and 64910 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:05:57,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:05:57,183 INFO L93 Difference]: Finished difference Result 104506 states and 129536 transitions. [2022-01-10 20:05:57,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:05:57,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 215 [2022-01-10 20:05:57,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:05:57,265 INFO L225 Difference]: With dead ends: 104506 [2022-01-10 20:05:57,266 INFO L226 Difference]: Without dead ends: 52257 [2022-01-10 20:05:57,308 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 20:05:57,308 INFO L933 BasicCegarLoop]: 1483 mSDtfsCounter, 1477 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 1484 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 20:05:57,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 1484 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:05:57,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52257 states. [2022-01-10 20:06:01,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52257 to 52257. [2022-01-10 20:06:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52257 states, 52255 states have (on average 1.239536886422352) internal successors, (64772), 52256 states have internal predecessors, (64772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:06:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52257 states to 52257 states and 64772 transitions. [2022-01-10 20:06:01,449 INFO L78 Accepts]: Start accepts. Automaton has 52257 states and 64772 transitions. Word has length 215 [2022-01-10 20:06:01,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:06:01,449 INFO L470 AbstractCegarLoop]: Abstraction has 52257 states and 64772 transitions. [2022-01-10 20:06:01,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:06:01,449 INFO L276 IsEmpty]: Start isEmpty. Operand 52257 states and 64772 transitions. [2022-01-10 20:06:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 20:06:01,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:06:01,467 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, 1, 1, 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 20:06:01,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 20:06:01,467 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:06:01,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:06:01,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1161474146, now seen corresponding path program 1 times [2022-01-10 20:06:01,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:06:01,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099094281] [2022-01-10 20:06:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:06:01,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:06:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:06:01,520 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 20:06:01,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:06:01,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099094281] [2022-01-10 20:06:01,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099094281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:06:01,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:06:01,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:06:01,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935971107] [2022-01-10 20:06:01,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:06:01,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:06:01,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:06:01,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:06:01,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:06:01,521 INFO L87 Difference]: Start difference. First operand 52257 states and 64772 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:06:08,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:06:08,676 INFO L93 Difference]: Finished difference Result 151453 states and 187535 transitions. [2022-01-10 20:06:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:06:08,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2022-01-10 20:06:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:06:08,865 INFO L225 Difference]: With dead ends: 151453 [2022-01-10 20:06:08,866 INFO L226 Difference]: Without dead ends: 99321 [2022-01-10 20:06:08,916 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 20:06:08,916 INFO L933 BasicCegarLoop]: 2223 mSDtfsCounter, 1152 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 3684 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 20:06:08,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 3684 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:06:08,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99321 states. [2022-01-10 20:06:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99321 to 99317. [2022-01-10 20:06:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99317 states, 99315 states have (on average 1.2364194733927403) internal successors, (122795), 99316 states have internal predecessors, (122795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:06:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99317 states to 99317 states and 122795 transitions. [2022-01-10 20:06:16,510 INFO L78 Accepts]: Start accepts. Automaton has 99317 states and 122795 transitions. Word has length 216 [2022-01-10 20:06:16,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:06:16,510 INFO L470 AbstractCegarLoop]: Abstraction has 99317 states and 122795 transitions. [2022-01-10 20:06:16,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:06:16,510 INFO L276 IsEmpty]: Start isEmpty. Operand 99317 states and 122795 transitions. [2022-01-10 20:06:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 20:06:16,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:06:16,541 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, 1, 1, 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 20:06:16,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 20:06:16,541 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 20:06:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:06:16,542 INFO L85 PathProgramCache]: Analyzing trace with hash 549176701, now seen corresponding path program 1 times [2022-01-10 20:06:16,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:06:16,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107083800] [2022-01-10 20:06:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:06:16,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:06:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:06:16,571 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 20:06:16,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:06:16,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107083800] [2022-01-10 20:06:16,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107083800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:06:16,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:06:16,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 20:06:16,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014338588] [2022-01-10 20:06:16,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:06:16,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 20:06:16,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:06:16,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 20:06:16,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 20:06:16,573 INFO L87 Difference]: Start difference. First operand 99317 states and 122795 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 20:06:24,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:06:24,225 INFO L93 Difference]: Finished difference Result 198393 states and 245309 transitions. [2022-01-10 20:06:24,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 20:06:24,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 216 [2022-01-10 20:06:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:06:24,401 INFO L225 Difference]: With dead ends: 198393 [2022-01-10 20:06:24,401 INFO L226 Difference]: Without dead ends: 99201 [2022-01-10 20:06:24,470 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 20:06:24,471 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 1475 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 1483 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 20:06:24,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1475 Valid, 1483 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:06:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99201 states.