/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.11.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:14:47,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:14:47,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:14:48,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:14:48,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:14:48,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:14:48,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:14:48,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:14:48,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:14:48,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:14:48,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:14:48,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:14:48,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:14:48,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:14:48,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:14:48,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:14:48,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:14:48,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:14:48,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:14:48,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:14:48,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:14:48,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:14:48,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:14:48,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:14:48,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:14:48,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:14:48,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:14:48,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:14:48,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:14:48,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:14:48,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:14:48,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:14:48,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:14:48,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:14:48,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:14:48,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:14:48,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:14:48,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:14:48,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:14:48,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:14:48,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:14:48,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:14:48,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:14:48,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:14:48,097 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:14:48,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:14:48,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:14:48,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:14:48,098 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:14:48,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:14:48,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:14:48,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:14:48,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:14:48,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:14:48,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:14:48,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:14:48,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:14:48,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:14:48,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:14:48,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:14:48,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:14:48,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:14:48,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:14:48,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:14:48,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:14:48,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:14:48,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:14:48,103 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:14:48,103 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:14:48,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:14:48,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:14:48,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:14:48,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:14:48,378 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:14:48,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.11.cil-1.c [2022-01-11 07:14:48,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6419943a6/e5b06679c95c4288b6e9ec77e001dede/FLAG48d2df7c0 [2022-01-11 07:14:49,367 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:14:49,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.11.cil-1.c [2022-01-11 07:14:49,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6419943a6/e5b06679c95c4288b6e9ec77e001dede/FLAG48d2df7c0 [2022-01-11 07:14:49,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6419943a6/e5b06679c95c4288b6e9ec77e001dede [2022-01-11 07:14:49,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:14:49,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:14:49,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:14:49,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:14:49,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:14:49,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:14:49" (1/1) ... [2022-01-11 07:14:49,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d991cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:49, skipping insertion in model container [2022-01-11 07:14:49,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:14:49" (1/1) ... [2022-01-11 07:14:49,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:14:49,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:14:51,491 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/Problem05_label49+token_ring.11.cil-1.c[380593,380606] [2022-01-11 07:14:51,513 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/Problem05_label49+token_ring.11.cil-1.c[383339,383352] [2022-01-11 07:14:51,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:14:51,829 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:14:52,584 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/Problem05_label49+token_ring.11.cil-1.c[380593,380606] [2022-01-11 07:14:52,590 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/Problem05_label49+token_ring.11.cil-1.c[383339,383352] [2022-01-11 07:14:52,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:14:52,682 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:14:52,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52 WrapperNode [2022-01-11 07:14:52,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:14:52,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:14:52,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:14:52,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:14:52,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:52,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,284 INFO L137 Inliner]: procedures = 67, calls = 75, calls flagged for inlining = 70, calls inlined = 249, statements flattened = 15992 [2022-01-11 07:14:53,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:14:53,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:14:53,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:14:53,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:14:53,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:14:53,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:14:53,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:14:53,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:14:53,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (1/1) ... [2022-01-11 07:14:53,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:14:53,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:14:53,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 07:14:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:14:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:14:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:14:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:14:53,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 07:14:54,130 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:14:54,131 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:15:02,971 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:15:03,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:15:03,022 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-01-11 07:15:03,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:15:03 BoogieIcfgContainer [2022-01-11 07:15:03,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:15:03,031 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:15:03,031 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:15:03,033 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:15:03,036 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:15:03" (1/1) ... [2022-01-11 07:15:04,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:15:04 BasicIcfg [2022-01-11 07:15:04,801 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:15:04,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:15:04,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:15:04,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:15:04,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:14:49" (1/4) ... [2022-01-11 07:15:04,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc4988a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:15:04, skipping insertion in model container [2022-01-11 07:15:04,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:52" (2/4) ... [2022-01-11 07:15:04,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc4988a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:15:04, skipping insertion in model container [2022-01-11 07:15:04,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:15:03" (3/4) ... [2022-01-11 07:15:04,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc4988a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:15:04, skipping insertion in model container [2022-01-11 07:15:04,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:15:04" (4/4) ... [2022-01-11 07:15:04,808 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.11.cil-1.cTransformedIcfg [2022-01-11 07:15:04,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:15:04,813 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 07:15:04,871 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:15:04,879 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 07:15:04,879 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 07:15:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 3764 states, 3760 states have (on average 1.7175531914893618) internal successors, (6458), 3763 states have internal predecessors, (6458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:04,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:04,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:04,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:04,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:04,970 INFO L85 PathProgramCache]: Analyzing trace with hash -745347290, now seen corresponding path program 1 times [2022-01-11 07:15:04,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:04,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596413017] [2022-01-11 07:15:04,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:04,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:05,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:05,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596413017] [2022-01-11 07:15:05,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596413017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:05,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:05,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:15:05,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748543285] [2022-01-11 07:15:05,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:05,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:05,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:05,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:05,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:05,476 INFO L87 Difference]: Start difference. First operand has 3764 states, 3760 states have (on average 1.7175531914893618) internal successors, (6458), 3763 states have internal predecessors, (6458), 0 states have call successors, (0), 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 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:05,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:05,707 INFO L93 Difference]: Finished difference Result 7516 states and 12894 transitions. [2022-01-11 07:15:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:05,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:05,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:05,752 INFO L225 Difference]: With dead ends: 7516 [2022-01-11 07:15:05,753 INFO L226 Difference]: Without dead ends: 3696 [2022-01-11 07:15:05,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:05,772 INFO L933 BasicCegarLoop]: 6363 mSDtfsCounter, 2331 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2331 SdHoareTripleChecker+Valid, 10385 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 [2022-01-11 07:15:05,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2331 Valid, 10385 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:05,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2022-01-11 07:15:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3696. [2022-01-11 07:15:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3696 states, 3693 states have (on average 1.7045762252910912) internal successors, (6295), 3695 states have internal predecessors, (6295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 6295 transitions. [2022-01-11 07:15:05,987 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 6295 transitions. Word has length 154 [2022-01-11 07:15:05,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:05,988 INFO L470 AbstractCegarLoop]: Abstraction has 3696 states and 6295 transitions. [2022-01-11 07:15:05,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:05,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 6295 transitions. [2022-01-11 07:15:05,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:05,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:05,997 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:05,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:15:05,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:05,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:05,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1672351111, now seen corresponding path program 1 times [2022-01-11 07:15:06,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:06,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181843391] [2022-01-11 07:15:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:06,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:06,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:06,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181843391] [2022-01-11 07:15:06,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181843391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:06,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:06,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:06,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597006780] [2022-01-11 07:15:06,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:06,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:06,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:06,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:06,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:06,157 INFO L87 Difference]: Start difference. First operand 3696 states and 6295 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:06,493 INFO L93 Difference]: Finished difference Result 6591 states and 10570 transitions. [2022-01-11 07:15:06,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:06,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:06,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:06,515 INFO L225 Difference]: With dead ends: 6591 [2022-01-11 07:15:06,516 INFO L226 Difference]: Without dead ends: 5034 [2022-01-11 07:15:06,522 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 [2022-01-11 07:15:06,523 INFO L933 BasicCegarLoop]: 6289 mSDtfsCounter, 6149 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6149 SdHoareTripleChecker+Valid, 8373 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 [2022-01-11 07:15:06,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6149 Valid, 8373 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:06,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2022-01-11 07:15:06,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 5030. [2022-01-11 07:15:06,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.642530336184603) internal successors, (8257), 5029 states have internal predecessors, (8257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8257 transitions. [2022-01-11 07:15:06,678 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8257 transitions. Word has length 154 [2022-01-11 07:15:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:06,680 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8257 transitions. [2022-01-11 07:15:06,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8257 transitions. [2022-01-11 07:15:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:06,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:06,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:06,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:15:06,683 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1188871769, now seen corresponding path program 1 times [2022-01-11 07:15:06,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:06,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015128192] [2022-01-11 07:15:06,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:06,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:06,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:06,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015128192] [2022-01-11 07:15:06,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015128192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:06,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:06,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:06,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670413063] [2022-01-11 07:15:06,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:06,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:06,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:06,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:06,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:06,793 INFO L87 Difference]: Start difference. First operand 5030 states and 8257 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:06,954 INFO L93 Difference]: Finished difference Result 7920 states and 12525 transitions. [2022-01-11 07:15:06,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:06,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:06,975 INFO L225 Difference]: With dead ends: 7920 [2022-01-11 07:15:06,976 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:06,986 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 [2022-01-11 07:15:06,989 INFO L933 BasicCegarLoop]: 6283 mSDtfsCounter, 6269 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6269 SdHoareTripleChecker+Valid, 6283 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 [2022-01-11 07:15:06,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6269 Valid, 6283 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:07,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6409389297791923) internal successors, (8249), 5029 states have internal predecessors, (8249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8249 transitions. [2022-01-11 07:15:07,176 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8249 transitions. Word has length 154 [2022-01-11 07:15:07,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:07,177 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8249 transitions. [2022-01-11 07:15:07,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8249 transitions. [2022-01-11 07:15:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:07,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:07,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:07,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:15:07,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:07,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1658088680, now seen corresponding path program 1 times [2022-01-11 07:15:07,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:07,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056117507] [2022-01-11 07:15:07,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:07,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:07,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:07,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056117507] [2022-01-11 07:15:07,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056117507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:07,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:07,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:07,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689415883] [2022-01-11 07:15:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:07,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:07,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:07,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:07,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:07,258 INFO L87 Difference]: Start difference. First operand 5030 states and 8249 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:07,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:07,416 INFO L93 Difference]: Finished difference Result 7919 states and 12508 transitions. [2022-01-11 07:15:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:07,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:07,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:07,439 INFO L225 Difference]: With dead ends: 7919 [2022-01-11 07:15:07,439 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:07,448 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 [2022-01-11 07:15:07,454 INFO L933 BasicCegarLoop]: 6278 mSDtfsCounter, 6263 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6263 SdHoareTripleChecker+Valid, 6278 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 [2022-01-11 07:15:07,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6263 Valid, 6278 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:07,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6393475233737815) internal successors, (8241), 5029 states have internal predecessors, (8241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8241 transitions. [2022-01-11 07:15:07,642 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8241 transitions. Word has length 154 [2022-01-11 07:15:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:07,642 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8241 transitions. [2022-01-11 07:15:07,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8241 transitions. [2022-01-11 07:15:07,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:07,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:07,645 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:07,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:15:07,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:07,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash -968349432, now seen corresponding path program 1 times [2022-01-11 07:15:07,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:07,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304774104] [2022-01-11 07:15:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:07,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:07,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:07,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304774104] [2022-01-11 07:15:07,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304774104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:07,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:07,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:07,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63776963] [2022-01-11 07:15:07,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:07,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:07,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:07,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:07,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:07,721 INFO L87 Difference]: Start difference. First operand 5030 states and 8241 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:08,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:08,018 INFO L93 Difference]: Finished difference Result 7918 states and 12491 transitions. [2022-01-11 07:15:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:08,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:08,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:08,053 INFO L225 Difference]: With dead ends: 7918 [2022-01-11 07:15:08,053 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:08,059 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 [2022-01-11 07:15:08,059 INFO L933 BasicCegarLoop]: 6273 mSDtfsCounter, 6257 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 6273 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 [2022-01-11 07:15:08,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6257 Valid, 6273 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:08,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:08,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:08,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6377561169683708) internal successors, (8233), 5029 states have internal predecessors, (8233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:08,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8233 transitions. [2022-01-11 07:15:08,225 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8233 transitions. Word has length 154 [2022-01-11 07:15:08,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:08,228 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8233 transitions. [2022-01-11 07:15:08,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8233 transitions. [2022-01-11 07:15:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:08,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:08,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:08,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:15:08,235 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:08,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1163684072, now seen corresponding path program 1 times [2022-01-11 07:15:08,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:08,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464234537] [2022-01-11 07:15:08,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:08,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:08,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:08,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464234537] [2022-01-11 07:15:08,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464234537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:08,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:08,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:08,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876626851] [2022-01-11 07:15:08,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:08,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:08,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:08,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:08,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:08,301 INFO L87 Difference]: Start difference. First operand 5030 states and 8233 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:08,433 INFO L93 Difference]: Finished difference Result 7917 states and 12474 transitions. [2022-01-11 07:15:08,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:08,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:08,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:08,445 INFO L225 Difference]: With dead ends: 7917 [2022-01-11 07:15:08,445 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:08,451 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 [2022-01-11 07:15:08,453 INFO L933 BasicCegarLoop]: 6268 mSDtfsCounter, 6251 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6251 SdHoareTripleChecker+Valid, 6268 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 [2022-01-11 07:15:08,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6251 Valid, 6268 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:08,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.63616471056296) internal successors, (8225), 5029 states have internal predecessors, (8225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8225 transitions. [2022-01-11 07:15:08,625 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8225 transitions. Word has length 154 [2022-01-11 07:15:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:08,626 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8225 transitions. [2022-01-11 07:15:08,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8225 transitions. [2022-01-11 07:15:08,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:08,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:08,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:08,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:15:08,628 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:08,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1261392632, now seen corresponding path program 1 times [2022-01-11 07:15:08,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:08,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016019877] [2022-01-11 07:15:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:08,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:08,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:08,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016019877] [2022-01-11 07:15:08,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016019877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:08,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:08,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:08,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606536246] [2022-01-11 07:15:08,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:08,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:08,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:08,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:08,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:08,691 INFO L87 Difference]: Start difference. First operand 5030 states and 8225 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:08,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:08,817 INFO L93 Difference]: Finished difference Result 7916 states and 12457 transitions. [2022-01-11 07:15:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:08,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:08,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:08,827 INFO L225 Difference]: With dead ends: 7916 [2022-01-11 07:15:08,827 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:08,833 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 [2022-01-11 07:15:08,834 INFO L933 BasicCegarLoop]: 6263 mSDtfsCounter, 6245 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6245 SdHoareTripleChecker+Valid, 6263 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 [2022-01-11 07:15:08,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6245 Valid, 6263 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6345733041575492) internal successors, (8217), 5029 states have internal predecessors, (8217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8217 transitions. [2022-01-11 07:15:09,002 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8217 transitions. Word has length 154 [2022-01-11 07:15:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:09,003 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8217 transitions. [2022-01-11 07:15:09,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8217 transitions. [2022-01-11 07:15:09,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:09,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:09,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:09,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:15:09,005 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1533828919, now seen corresponding path program 1 times [2022-01-11 07:15:09,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:09,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114600299] [2022-01-11 07:15:09,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:09,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:09,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:09,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:09,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114600299] [2022-01-11 07:15:09,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114600299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:09,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:09,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:09,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316791039] [2022-01-11 07:15:09,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:09,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:09,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:09,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:09,105 INFO L87 Difference]: Start difference. First operand 5030 states and 8217 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:09,269 INFO L93 Difference]: Finished difference Result 7915 states and 12440 transitions. [2022-01-11 07:15:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:09,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:09,281 INFO L225 Difference]: With dead ends: 7915 [2022-01-11 07:15:09,282 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:09,289 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 [2022-01-11 07:15:09,290 INFO L933 BasicCegarLoop]: 6258 mSDtfsCounter, 6239 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6239 SdHoareTripleChecker+Valid, 6258 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 [2022-01-11 07:15:09,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6239 Valid, 6258 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:09,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:09,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6329818977521384) internal successors, (8209), 5029 states have internal predecessors, (8209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8209 transitions. [2022-01-11 07:15:09,480 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8209 transitions. Word has length 154 [2022-01-11 07:15:09,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:09,482 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8209 transitions. [2022-01-11 07:15:09,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8209 transitions. [2022-01-11 07:15:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:09,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:09,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:09,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:15:09,485 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:09,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1232442135, now seen corresponding path program 1 times [2022-01-11 07:15:09,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:09,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009046845] [2022-01-11 07:15:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:09,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:09,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:09,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:09,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009046845] [2022-01-11 07:15:09,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009046845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:09,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:09,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:09,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472488051] [2022-01-11 07:15:09,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:09,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:09,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:09,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:09,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:09,539 INFO L87 Difference]: Start difference. First operand 5030 states and 8209 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:09,700 INFO L93 Difference]: Finished difference Result 7914 states and 12423 transitions. [2022-01-11 07:15:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:09,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:09,711 INFO L225 Difference]: With dead ends: 7914 [2022-01-11 07:15:09,712 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:09,718 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 [2022-01-11 07:15:09,720 INFO L933 BasicCegarLoop]: 6253 mSDtfsCounter, 6233 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6233 SdHoareTripleChecker+Valid, 6253 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 [2022-01-11 07:15:09,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6233 Valid, 6253 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:09,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:09,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6313904913467276) internal successors, (8201), 5029 states have internal predecessors, (8201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8201 transitions. [2022-01-11 07:15:09,893 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8201 transitions. Word has length 154 [2022-01-11 07:15:09,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:09,894 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8201 transitions. [2022-01-11 07:15:09,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8201 transitions. [2022-01-11 07:15:09,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:09,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:09,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:09,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:15:09,899 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:09,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:09,900 INFO L85 PathProgramCache]: Analyzing trace with hash 578395337, now seen corresponding path program 1 times [2022-01-11 07:15:09,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:09,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937696455] [2022-01-11 07:15:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:09,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:09,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:09,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937696455] [2022-01-11 07:15:09,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937696455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:09,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:09,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:09,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045498975] [2022-01-11 07:15:09,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:09,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:09,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:09,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:09,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:09,955 INFO L87 Difference]: Start difference. First operand 5030 states and 8201 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:10,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:10,130 INFO L93 Difference]: Finished difference Result 7913 states and 12406 transitions. [2022-01-11 07:15:10,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:10,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:10,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:10,142 INFO L225 Difference]: With dead ends: 7913 [2022-01-11 07:15:10,143 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:10,150 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 [2022-01-11 07:15:10,151 INFO L933 BasicCegarLoop]: 6248 mSDtfsCounter, 6227 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6227 SdHoareTripleChecker+Valid, 6248 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 [2022-01-11 07:15:10,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6227 Valid, 6248 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:10,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6297990849413169) internal successors, (8193), 5029 states have internal predecessors, (8193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:10,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8193 transitions. [2022-01-11 07:15:10,362 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8193 transitions. Word has length 154 [2022-01-11 07:15:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:10,362 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8193 transitions. [2022-01-11 07:15:10,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:10,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8193 transitions. [2022-01-11 07:15:10,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:10,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:10,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:10,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:15:10,365 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:10,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash 636809449, now seen corresponding path program 1 times [2022-01-11 07:15:10,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:10,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498986823] [2022-01-11 07:15:10,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:10,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:10,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:10,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498986823] [2022-01-11 07:15:10,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498986823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:10,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:10,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:10,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134794869] [2022-01-11 07:15:10,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:10,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:10,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:10,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:10,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:10,419 INFO L87 Difference]: Start difference. First operand 5030 states and 8193 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:10,605 INFO L93 Difference]: Finished difference Result 7912 states and 12389 transitions. [2022-01-11 07:15:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:10,617 INFO L225 Difference]: With dead ends: 7912 [2022-01-11 07:15:10,617 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:10,624 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 [2022-01-11 07:15:10,625 INFO L933 BasicCegarLoop]: 6243 mSDtfsCounter, 6221 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6221 SdHoareTripleChecker+Valid, 6243 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 [2022-01-11 07:15:10,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6221 Valid, 6243 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:10,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.628207678535906) internal successors, (8185), 5029 states have internal predecessors, (8185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8185 transitions. [2022-01-11 07:15:10,842 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8185 transitions. Word has length 154 [2022-01-11 07:15:10,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:10,843 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8185 transitions. [2022-01-11 07:15:10,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:10,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8185 transitions. [2022-01-11 07:15:10,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:10,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:10,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:10,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:15:10,846 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:10,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1716610871, now seen corresponding path program 1 times [2022-01-11 07:15:10,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:10,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853794952] [2022-01-11 07:15:10,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:10,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:10,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:10,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853794952] [2022-01-11 07:15:10,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853794952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:10,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:10,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:10,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142786520] [2022-01-11 07:15:10,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:10,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:10,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:10,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:10,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:10,903 INFO L87 Difference]: Start difference. First operand 5030 states and 8185 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:11,072 INFO L93 Difference]: Finished difference Result 7911 states and 12372 transitions. [2022-01-11 07:15:11,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:11,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:11,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:11,084 INFO L225 Difference]: With dead ends: 7911 [2022-01-11 07:15:11,084 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:11,092 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 [2022-01-11 07:15:11,094 INFO L933 BasicCegarLoop]: 6238 mSDtfsCounter, 6215 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6215 SdHoareTripleChecker+Valid, 6238 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 [2022-01-11 07:15:11,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6215 Valid, 6238 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:11,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6266162721304953) internal successors, (8177), 5029 states have internal predecessors, (8177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8177 transitions. [2022-01-11 07:15:11,271 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8177 transitions. Word has length 154 [2022-01-11 07:15:11,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:11,272 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8177 transitions. [2022-01-11 07:15:11,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:11,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8177 transitions. [2022-01-11 07:15:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:11,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:11,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:11,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:15:11,274 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:11,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:11,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1238338327, now seen corresponding path program 1 times [2022-01-11 07:15:11,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:11,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729995042] [2022-01-11 07:15:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:11,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:11,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:11,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729995042] [2022-01-11 07:15:11,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729995042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:11,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:11,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:11,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82003035] [2022-01-11 07:15:11,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:11,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:11,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:11,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:11,328 INFO L87 Difference]: Start difference. First operand 5030 states and 8177 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:11,485 INFO L93 Difference]: Finished difference Result 7910 states and 12355 transitions. [2022-01-11 07:15:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:11,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:11,546 INFO L225 Difference]: With dead ends: 7910 [2022-01-11 07:15:11,546 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:11,551 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 [2022-01-11 07:15:11,553 INFO L933 BasicCegarLoop]: 6233 mSDtfsCounter, 6209 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6209 SdHoareTripleChecker+Valid, 6233 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 [2022-01-11 07:15:11,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6209 Valid, 6233 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6250248657250845) internal successors, (8169), 5029 states have internal predecessors, (8169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8169 transitions. [2022-01-11 07:15:11,727 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8169 transitions. Word has length 154 [2022-01-11 07:15:11,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:11,727 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8169 transitions. [2022-01-11 07:15:11,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:11,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8169 transitions. [2022-01-11 07:15:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:11,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:11,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:11,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:15:11,730 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:11,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:11,730 INFO L85 PathProgramCache]: Analyzing trace with hash 301110473, now seen corresponding path program 1 times [2022-01-11 07:15:11,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:11,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836131008] [2022-01-11 07:15:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:11,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:11,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:11,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836131008] [2022-01-11 07:15:11,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836131008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:11,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:11,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:11,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783327654] [2022-01-11 07:15:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:11,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:11,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:11,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:11,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:11,788 INFO L87 Difference]: Start difference. First operand 5030 states and 8169 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:11,974 INFO L93 Difference]: Finished difference Result 7908 states and 12336 transitions. [2022-01-11 07:15:11,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:11,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:11,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:11,986 INFO L225 Difference]: With dead ends: 7908 [2022-01-11 07:15:11,987 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:11,995 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 [2022-01-11 07:15:11,996 INFO L933 BasicCegarLoop]: 6200 mSDtfsCounter, 6066 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6066 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:11,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6066 Valid, 6318 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:12,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:12,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6182613885020887) internal successors, (8135), 5029 states have internal predecessors, (8135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8135 transitions. [2022-01-11 07:15:12,178 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8135 transitions. Word has length 154 [2022-01-11 07:15:12,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:12,178 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8135 transitions. [2022-01-11 07:15:12,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8135 transitions. [2022-01-11 07:15:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:12,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:12,180 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:12,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:15:12,180 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:12,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash -2083405464, now seen corresponding path program 1 times [2022-01-11 07:15:12,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:12,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82780087] [2022-01-11 07:15:12,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:12,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:12,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:12,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82780087] [2022-01-11 07:15:12,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82780087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:12,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:12,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:12,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619170425] [2022-01-11 07:15:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:12,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:12,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:12,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:12,240 INFO L87 Difference]: Start difference. First operand 5030 states and 8135 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:12,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:12,428 INFO L93 Difference]: Finished difference Result 7907 states and 12267 transitions. [2022-01-11 07:15:12,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:12,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:12,441 INFO L225 Difference]: With dead ends: 7907 [2022-01-11 07:15:12,441 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:12,448 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 [2022-01-11 07:15:12,449 INFO L933 BasicCegarLoop]: 6181 mSDtfsCounter, 6047 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6047 SdHoareTripleChecker+Valid, 6298 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:12,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6047 Valid, 6298 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:12,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:12,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:12,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6114979112790928) internal successors, (8101), 5029 states have internal predecessors, (8101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8101 transitions. [2022-01-11 07:15:12,635 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8101 transitions. Word has length 154 [2022-01-11 07:15:12,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:12,635 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8101 transitions. [2022-01-11 07:15:12,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:12,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8101 transitions. [2022-01-11 07:15:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:12,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:12,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:12,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:15:12,637 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:12,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash -134251129, now seen corresponding path program 1 times [2022-01-11 07:15:12,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:12,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179075846] [2022-01-11 07:15:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:12,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:12,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:12,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179075846] [2022-01-11 07:15:12,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179075846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:12,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:12,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:12,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631121158] [2022-01-11 07:15:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:12,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:12,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:12,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:12,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:12,686 INFO L87 Difference]: Start difference. First operand 5030 states and 8101 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:12,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:12,872 INFO L93 Difference]: Finished difference Result 7906 states and 12198 transitions. [2022-01-11 07:15:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:12,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:12,884 INFO L225 Difference]: With dead ends: 7906 [2022-01-11 07:15:12,884 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:12,891 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 [2022-01-11 07:15:12,891 INFO L933 BasicCegarLoop]: 6162 mSDtfsCounter, 6028 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6028 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:12,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6028 Valid, 6278 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:12,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:13,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:13,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.6047344340560972) internal successors, (8067), 5029 states have internal predecessors, (8067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8067 transitions. [2022-01-11 07:15:13,073 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8067 transitions. Word has length 154 [2022-01-11 07:15:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:13,073 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8067 transitions. [2022-01-11 07:15:13,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8067 transitions. [2022-01-11 07:15:13,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:13,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:13,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:13,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:15:13,076 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:13,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:13,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1719994534, now seen corresponding path program 1 times [2022-01-11 07:15:13,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:13,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452446441] [2022-01-11 07:15:13,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:13,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:13,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:13,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452446441] [2022-01-11 07:15:13,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452446441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:13,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:13,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:13,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041243817] [2022-01-11 07:15:13,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:13,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:13,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:13,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:13,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:13,126 INFO L87 Difference]: Start difference. First operand 5030 states and 8067 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:13,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:13,328 INFO L93 Difference]: Finished difference Result 7905 states and 12129 transitions. [2022-01-11 07:15:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:13,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:13,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:13,340 INFO L225 Difference]: With dead ends: 7905 [2022-01-11 07:15:13,341 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:13,347 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 [2022-01-11 07:15:13,348 INFO L933 BasicCegarLoop]: 6143 mSDtfsCounter, 6009 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6009 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:13,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6009 Valid, 6258 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:13,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:13,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5979709568331013) internal successors, (8033), 5029 states have internal predecessors, (8033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:13,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 8033 transitions. [2022-01-11 07:15:13,578 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 8033 transitions. Word has length 154 [2022-01-11 07:15:13,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:13,578 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 8033 transitions. [2022-01-11 07:15:13,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:13,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 8033 transitions. [2022-01-11 07:15:13,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:13,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:13,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:13,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:15:13,582 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:13,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:13,582 INFO L85 PathProgramCache]: Analyzing trace with hash 166728517, now seen corresponding path program 1 times [2022-01-11 07:15:13,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:13,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762211001] [2022-01-11 07:15:13,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:13,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:13,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:13,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762211001] [2022-01-11 07:15:13,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762211001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:13,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:13,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:13,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052909834] [2022-01-11 07:15:13,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:13,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:13,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:13,635 INFO L87 Difference]: Start difference. First operand 5030 states and 8033 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:13,873 INFO L93 Difference]: Finished difference Result 7904 states and 12060 transitions. [2022-01-11 07:15:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:13,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:13,882 INFO L225 Difference]: With dead ends: 7904 [2022-01-11 07:15:13,883 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:13,888 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 [2022-01-11 07:15:13,889 INFO L933 BasicCegarLoop]: 6124 mSDtfsCounter, 5990 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5990 SdHoareTripleChecker+Valid, 6238 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:13,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5990 Valid, 6238 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:14,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5912074796101054) internal successors, (7999), 5029 states have internal predecessors, (7999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:14,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7999 transitions. [2022-01-11 07:15:14,087 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7999 transitions. Word has length 154 [2022-01-11 07:15:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:14,087 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 7999 transitions. [2022-01-11 07:15:14,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7999 transitions. [2022-01-11 07:15:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:14,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:14,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:14,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:15:14,090 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1782553381, now seen corresponding path program 1 times [2022-01-11 07:15:14,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:14,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676261264] [2022-01-11 07:15:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:14,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:14,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:14,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:14,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676261264] [2022-01-11 07:15:14,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676261264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:14,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:14,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:14,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064319009] [2022-01-11 07:15:14,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:14,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:14,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:14,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:14,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:14,150 INFO L87 Difference]: Start difference. First operand 5030 states and 7999 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:14,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:14,368 INFO L93 Difference]: Finished difference Result 7903 states and 11991 transitions. [2022-01-11 07:15:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:14,379 INFO L225 Difference]: With dead ends: 7903 [2022-01-11 07:15:14,380 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:14,386 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 [2022-01-11 07:15:14,386 INFO L933 BasicCegarLoop]: 6105 mSDtfsCounter, 5971 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5971 SdHoareTripleChecker+Valid, 6218 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:14,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5971 Valid, 6218 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:14,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:14,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5844440023871096) internal successors, (7965), 5029 states have internal predecessors, (7965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:14,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7965 transitions. [2022-01-11 07:15:14,570 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7965 transitions. Word has length 154 [2022-01-11 07:15:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:14,570 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 7965 transitions. [2022-01-11 07:15:14,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:14,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7965 transitions. [2022-01-11 07:15:14,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:14,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:14,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:14,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:15:14,573 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:14,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash 679457860, now seen corresponding path program 1 times [2022-01-11 07:15:14,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:14,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783411499] [2022-01-11 07:15:14,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:14,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:14,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:14,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783411499] [2022-01-11 07:15:14,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783411499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:14,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:14,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:14,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263811579] [2022-01-11 07:15:14,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:14,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:14,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:14,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:14,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:14,644 INFO L87 Difference]: Start difference. First operand 5030 states and 7965 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:14,849 INFO L93 Difference]: Finished difference Result 7902 states and 11922 transitions. [2022-01-11 07:15:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:14,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:14,861 INFO L225 Difference]: With dead ends: 7902 [2022-01-11 07:15:14,861 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:14,867 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 [2022-01-11 07:15:14,868 INFO L933 BasicCegarLoop]: 6086 mSDtfsCounter, 5952 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5952 SdHoareTripleChecker+Valid, 6198 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:14,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5952 Valid, 6198 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:14,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:15,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:15,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5776805251641137) internal successors, (7931), 5029 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7931 transitions. [2022-01-11 07:15:15,054 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7931 transitions. Word has length 154 [2022-01-11 07:15:15,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:15,055 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 7931 transitions. [2022-01-11 07:15:15,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7931 transitions. [2022-01-11 07:15:15,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:15,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:15,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:15,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:15:15,057 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:15,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2030224285, now seen corresponding path program 1 times [2022-01-11 07:15:15,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:15,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354483151] [2022-01-11 07:15:15,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:15,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:15,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:15,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354483151] [2022-01-11 07:15:15,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354483151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:15,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:15,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:15,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977409532] [2022-01-11 07:15:15,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:15,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:15,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:15,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:15,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:15,110 INFO L87 Difference]: Start difference. First operand 5030 states and 7931 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:15,304 INFO L93 Difference]: Finished difference Result 7901 states and 11853 transitions. [2022-01-11 07:15:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:15,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:15,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:15,316 INFO L225 Difference]: With dead ends: 7901 [2022-01-11 07:15:15,316 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:15,322 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 [2022-01-11 07:15:15,323 INFO L933 BasicCegarLoop]: 6067 mSDtfsCounter, 5933 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5933 SdHoareTripleChecker+Valid, 6178 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:15,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5933 Valid, 6178 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:15,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:15,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:15,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5709170479411179) internal successors, (7897), 5029 states have internal predecessors, (7897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7897 transitions. [2022-01-11 07:15:15,493 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7897 transitions. Word has length 154 [2022-01-11 07:15:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:15,494 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 7897 transitions. [2022-01-11 07:15:15,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7897 transitions. [2022-01-11 07:15:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:15,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:15,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:15,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:15:15,496 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:15,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:15,496 INFO L85 PathProgramCache]: Analyzing trace with hash -422960126, now seen corresponding path program 1 times [2022-01-11 07:15:15,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:15,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716058454] [2022-01-11 07:15:15,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:15,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:15,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:15,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:15,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716058454] [2022-01-11 07:15:15,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716058454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:15,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:15,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:15,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018508086] [2022-01-11 07:15:15,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:15,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:15,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:15,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:15,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:15,583 INFO L87 Difference]: Start difference. First operand 5030 states and 7897 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:15,785 INFO L93 Difference]: Finished difference Result 7900 states and 11784 transitions. [2022-01-11 07:15:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:15,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:15,796 INFO L225 Difference]: With dead ends: 7900 [2022-01-11 07:15:15,796 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:15,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:15,804 INFO L933 BasicCegarLoop]: 6048 mSDtfsCounter, 5914 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5914 SdHoareTripleChecker+Valid, 6158 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:15,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5914 Valid, 6158 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:15,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5641535707181222) internal successors, (7863), 5029 states have internal predecessors, (7863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7863 transitions. [2022-01-11 07:15:15,981 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7863 transitions. Word has length 154 [2022-01-11 07:15:15,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:15,981 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 7863 transitions. [2022-01-11 07:15:15,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7863 transitions. [2022-01-11 07:15:15,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:15,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:15,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:15,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:15:15,984 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:15,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1931916639, now seen corresponding path program 1 times [2022-01-11 07:15:15,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:15,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124509145] [2022-01-11 07:15:15,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:15,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:16,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:16,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124509145] [2022-01-11 07:15:16,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124509145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:16,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:16,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:16,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437682078] [2022-01-11 07:15:16,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:16,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:16,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:16,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:16,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:16,032 INFO L87 Difference]: Start difference. First operand 5030 states and 7863 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:16,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:16,275 INFO L93 Difference]: Finished difference Result 7899 states and 11715 transitions. [2022-01-11 07:15:16,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:16,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:16,288 INFO L225 Difference]: With dead ends: 7899 [2022-01-11 07:15:16,289 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:16,295 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 [2022-01-11 07:15:16,295 INFO L933 BasicCegarLoop]: 6029 mSDtfsCounter, 5895 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5895 SdHoareTripleChecker+Valid, 6138 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:16,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5895 Valid, 6138 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:16,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5573900934951264) internal successors, (7829), 5029 states have internal predecessors, (7829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7829 transitions. [2022-01-11 07:15:16,517 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7829 transitions. Word has length 154 [2022-01-11 07:15:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:16,517 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 7829 transitions. [2022-01-11 07:15:16,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7829 transitions. [2022-01-11 07:15:16,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:16,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:16,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:16,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:15:16,519 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1073037120, now seen corresponding path program 1 times [2022-01-11 07:15:16,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:16,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484677546] [2022-01-11 07:15:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:16,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:16,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:16,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484677546] [2022-01-11 07:15:16,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484677546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:16,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:16,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:16,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502014181] [2022-01-11 07:15:16,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:16,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:16,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:16,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:16,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:16,595 INFO L87 Difference]: Start difference. First operand 5030 states and 7829 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:16,821 INFO L93 Difference]: Finished difference Result 7898 states and 11646 transitions. [2022-01-11 07:15:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:16,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:16,833 INFO L225 Difference]: With dead ends: 7898 [2022-01-11 07:15:16,834 INFO L226 Difference]: Without dead ends: 5030 [2022-01-11 07:15:16,840 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 [2022-01-11 07:15:16,841 INFO L933 BasicCegarLoop]: 6010 mSDtfsCounter, 5876 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5876 SdHoareTripleChecker+Valid, 6118 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:16,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5876 Valid, 6118 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:16,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2022-01-11 07:15:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5030. [2022-01-11 07:15:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5027 states have (on average 1.5506266162721305) internal successors, (7795), 5029 states have internal predecessors, (7795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 7795 transitions. [2022-01-11 07:15:17,041 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 7795 transitions. Word has length 154 [2022-01-11 07:15:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:17,041 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 7795 transitions. [2022-01-11 07:15:17,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 7795 transitions. [2022-01-11 07:15:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-11 07:15:17,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:17,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:17,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:15:17,043 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:17,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1972323807, now seen corresponding path program 1 times [2022-01-11 07:15:17,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:17,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441793246] [2022-01-11 07:15:17,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:17,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:17,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:17,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441793246] [2022-01-11 07:15:17,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441793246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:17,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:17,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:17,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654793161] [2022-01-11 07:15:17,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:17,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:17,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:17,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:17,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:17,093 INFO L87 Difference]: Start difference. First operand 5030 states and 7795 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:17,530 INFO L93 Difference]: Finished difference Result 10606 states and 15136 transitions. [2022-01-11 07:15:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:17,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-01-11 07:15:17,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:17,549 INFO L225 Difference]: With dead ends: 10606 [2022-01-11 07:15:17,550 INFO L226 Difference]: Without dead ends: 7740 [2022-01-11 07:15:17,558 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 [2022-01-11 07:15:17,559 INFO L933 BasicCegarLoop]: 6010 mSDtfsCounter, 5922 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5922 SdHoareTripleChecker+Valid, 7859 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:17,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5922 Valid, 7859 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:15:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2022-01-11 07:15:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7574. [2022-01-11 07:15:17,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7571 states have (on average 1.467573636243561) internal successors, (11111), 7573 states have internal predecessors, (11111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 11111 transitions. [2022-01-11 07:15:17,935 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 11111 transitions. Word has length 154 [2022-01-11 07:15:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:17,935 INFO L470 AbstractCegarLoop]: Abstraction has 7574 states and 11111 transitions. [2022-01-11 07:15:17,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:17,935 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 11111 transitions. [2022-01-11 07:15:17,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:17,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:17,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:17,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:15:17,942 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:17,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1428542768, now seen corresponding path program 1 times [2022-01-11 07:15:17,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:17,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638375518] [2022-01-11 07:15:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:17,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:18,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:15:18,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:18,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638375518] [2022-01-11 07:15:18,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638375518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:18,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:18,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:15:18,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661039502] [2022-01-11 07:15:18,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:18,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:15:18,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:18,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:15:18,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:15:18,039 INFO L87 Difference]: Start difference. First operand 7574 states and 11111 transitions. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:18,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:18,729 INFO L93 Difference]: Finished difference Result 14047 states and 19699 transitions. [2022-01-11 07:15:18,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:15:18,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 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 250 [2022-01-11 07:15:18,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:18,746 INFO L225 Difference]: With dead ends: 14047 [2022-01-11 07:15:18,747 INFO L226 Difference]: Without dead ends: 8648 [2022-01-11 07:15:18,759 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 [2022-01-11 07:15:18,759 INFO L933 BasicCegarLoop]: 6119 mSDtfsCounter, 5750 mSDsluCounter, 13551 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5750 SdHoareTripleChecker+Valid, 19670 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:18,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5750 Valid, 19670 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:15:18,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8648 states. [2022-01-11 07:15:19,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8648 to 7580. [2022-01-11 07:15:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7580 states, 7577 states have (on average 1.4604724825128679) internal successors, (11066), 7579 states have internal predecessors, (11066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7580 states to 7580 states and 11066 transitions. [2022-01-11 07:15:19,328 INFO L78 Accepts]: Start accepts. Automaton has 7580 states and 11066 transitions. Word has length 250 [2022-01-11 07:15:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:19,328 INFO L470 AbstractCegarLoop]: Abstraction has 7580 states and 11066 transitions. [2022-01-11 07:15:19,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 7580 states and 11066 transitions. [2022-01-11 07:15:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:19,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:19,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:19,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:15:19,334 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:19,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:19,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1581361999, now seen corresponding path program 1 times [2022-01-11 07:15:19,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:19,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561030951] [2022-01-11 07:15:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:19,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:15:19,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:19,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561030951] [2022-01-11 07:15:19,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561030951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:19,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:19,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:15:19,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459325109] [2022-01-11 07:15:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:19,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:15:19,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:19,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:15:19,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:15:19,423 INFO L87 Difference]: Start difference. First operand 7580 states and 11066 transitions. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:20,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:20,297 INFO L93 Difference]: Finished difference Result 16474 states and 22753 transitions. [2022-01-11 07:15:20,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:15:20,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 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 250 [2022-01-11 07:15:20,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:20,320 INFO L225 Difference]: With dead ends: 16474 [2022-01-11 07:15:20,320 INFO L226 Difference]: Without dead ends: 11104 [2022-01-11 07:15:20,331 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 [2022-01-11 07:15:20,332 INFO L933 BasicCegarLoop]: 6050 mSDtfsCounter, 4971 mSDsluCounter, 15808 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4971 SdHoareTripleChecker+Valid, 21858 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:20,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4971 Valid, 21858 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:15:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-01-11 07:15:20,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 7592. [2022-01-11 07:15:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7592 states, 7589 states have (on average 1.4532876531822374) internal successors, (11029), 7591 states have internal predecessors, (11029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:20,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7592 states to 7592 states and 11029 transitions. [2022-01-11 07:15:20,945 INFO L78 Accepts]: Start accepts. Automaton has 7592 states and 11029 transitions. Word has length 250 [2022-01-11 07:15:20,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:20,946 INFO L470 AbstractCegarLoop]: Abstraction has 7592 states and 11029 transitions. [2022-01-11 07:15:20,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:20,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7592 states and 11029 transitions. [2022-01-11 07:15:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:20,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:20,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:20,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:15:20,951 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1654766349, now seen corresponding path program 1 times [2022-01-11 07:15:20,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:20,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475513856] [2022-01-11 07:15:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:20,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:15:21,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:21,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475513856] [2022-01-11 07:15:21,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475513856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:21,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:21,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:15:21,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710079728] [2022-01-11 07:15:21,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:21,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:15:21,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:21,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:15:21,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:15:21,053 INFO L87 Difference]: Start difference. First operand 7592 states and 11029 transitions. Second operand has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:22,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:22,012 INFO L93 Difference]: Finished difference Result 16797 states and 23019 transitions. [2022-01-11 07:15:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:15:22,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 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 250 [2022-01-11 07:15:22,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:22,031 INFO L225 Difference]: With dead ends: 16797 [2022-01-11 07:15:22,031 INFO L226 Difference]: Without dead ends: 11422 [2022-01-11 07:15:22,041 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 [2022-01-11 07:15:22,041 INFO L933 BasicCegarLoop]: 6018 mSDtfsCounter, 4791 mSDsluCounter, 16113 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 22131 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:22,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4791 Valid, 22131 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:15:22,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11422 states. [2022-01-11 07:15:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11422 to 7604. [2022-01-11 07:15:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7604 states, 7601 states have (on average 1.446125509801342) internal successors, (10992), 7603 states have internal predecessors, (10992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7604 states to 7604 states and 10992 transitions. [2022-01-11 07:15:22,604 INFO L78 Accepts]: Start accepts. Automaton has 7604 states and 10992 transitions. Word has length 250 [2022-01-11 07:15:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:22,604 INFO L470 AbstractCegarLoop]: Abstraction has 7604 states and 10992 transitions. [2022-01-11 07:15:22,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.4) internal successors, (242), 5 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7604 states and 10992 transitions. [2022-01-11 07:15:22,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:22,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:22,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:22,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:15:22,611 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:22,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash 180358837, now seen corresponding path program 1 times [2022-01-11 07:15:22,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:22,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296376829] [2022-01-11 07:15:22,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:22,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:15:22,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:22,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296376829] [2022-01-11 07:15:22,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296376829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:22,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:22,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:15:22,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562224939] [2022-01-11 07:15:22,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:22,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:22,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:22,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:22,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:22,743 INFO L87 Difference]: Start difference. First operand 7604 states and 10992 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:23,473 INFO L93 Difference]: Finished difference Result 13057 states and 17984 transitions. [2022-01-11 07:15:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:23,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 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 250 [2022-01-11 07:15:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:23,484 INFO L225 Difference]: With dead ends: 13057 [2022-01-11 07:15:23,484 INFO L226 Difference]: Without dead ends: 7604 [2022-01-11 07:15:23,491 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 [2022-01-11 07:15:23,491 INFO L933 BasicCegarLoop]: 5948 mSDtfsCounter, 5731 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5731 SdHoareTripleChecker+Valid, 6052 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:23,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5731 Valid, 6052 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:23,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7604 states. [2022-01-11 07:15:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7604 to 7604. [2022-01-11 07:15:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7604 states, 7601 states have (on average 1.4409946059728984) internal successors, (10953), 7603 states have internal predecessors, (10953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7604 states to 7604 states and 10953 transitions. [2022-01-11 07:15:24,003 INFO L78 Accepts]: Start accepts. Automaton has 7604 states and 10953 transitions. Word has length 250 [2022-01-11 07:15:24,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:24,003 INFO L470 AbstractCegarLoop]: Abstraction has 7604 states and 10953 transitions. [2022-01-11 07:15:24,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7604 states and 10953 transitions. [2022-01-11 07:15:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:24,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:24,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:24,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:15:24,009 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:24,010 INFO L85 PathProgramCache]: Analyzing trace with hash 611275638, now seen corresponding path program 1 times [2022-01-11 07:15:24,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:24,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879454368] [2022-01-11 07:15:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:24,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:24,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:24,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879454368] [2022-01-11 07:15:24,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879454368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:24,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:24,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:15:24,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173426996] [2022-01-11 07:15:24,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:24,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:24,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:24,092 INFO L87 Difference]: Start difference. First operand 7604 states and 10953 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:25,004 INFO L93 Difference]: Finished difference Result 18274 states and 24589 transitions. [2022-01-11 07:15:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:25,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2022-01-11 07:15:25,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:25,022 INFO L225 Difference]: With dead ends: 18274 [2022-01-11 07:15:25,022 INFO L226 Difference]: Without dead ends: 12840 [2022-01-11 07:15:25,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:25,029 INFO L933 BasicCegarLoop]: 5947 mSDtfsCounter, 5809 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5809 SdHoareTripleChecker+Valid, 7741 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:25,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5809 Valid, 7741 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:15:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12840 states. [2022-01-11 07:15:25,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12840 to 12524. [2022-01-11 07:15:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12524 states, 12521 states have (on average 1.3747304528392301) internal successors, (17213), 12523 states have internal predecessors, (17213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12524 states to 12524 states and 17213 transitions. [2022-01-11 07:15:25,725 INFO L78 Accepts]: Start accepts. Automaton has 12524 states and 17213 transitions. Word has length 250 [2022-01-11 07:15:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:25,725 INFO L470 AbstractCegarLoop]: Abstraction has 12524 states and 17213 transitions. [2022-01-11 07:15:25,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 12524 states and 17213 transitions. [2022-01-11 07:15:25,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:25,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:25,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:25,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 07:15:25,734 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:25,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1518047861, now seen corresponding path program 1 times [2022-01-11 07:15:25,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:25,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447838516] [2022-01-11 07:15:25,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:25,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:25,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:25,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:25,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447838516] [2022-01-11 07:15:25,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447838516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:25,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:25,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:15:25,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489909730] [2022-01-11 07:15:25,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:25,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:15:25,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:25,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:15:25,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:15:25,838 INFO L87 Difference]: Start difference. First operand 12524 states and 17213 transitions. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:27,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:27,435 INFO L93 Difference]: Finished difference Result 31889 states and 42070 transitions. [2022-01-11 07:15:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:15:27,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2022-01-11 07:15:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:27,476 INFO L225 Difference]: With dead ends: 31889 [2022-01-11 07:15:27,476 INFO L226 Difference]: Without dead ends: 21602 [2022-01-11 07:15:27,494 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 [2022-01-11 07:15:27,495 INFO L933 BasicCegarLoop]: 5930 mSDtfsCounter, 4264 mSDsluCounter, 17057 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4264 SdHoareTripleChecker+Valid, 22987 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:15:27,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4264 Valid, 22987 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:15:27,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21602 states. [2022-01-11 07:15:28,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21602 to 12548. [2022-01-11 07:15:28,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12548 states, 12545 states have (on average 1.3666002391390992) internal successors, (17144), 12547 states have internal predecessors, (17144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:28,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12548 states to 12548 states and 17144 transitions. [2022-01-11 07:15:28,349 INFO L78 Accepts]: Start accepts. Automaton has 12548 states and 17144 transitions. Word has length 250 [2022-01-11 07:15:28,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:28,350 INFO L470 AbstractCegarLoop]: Abstraction has 12548 states and 17144 transitions. [2022-01-11 07:15:28,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:28,350 INFO L276 IsEmpty]: Start isEmpty. Operand 12548 states and 17144 transitions. [2022-01-11 07:15:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:28,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:28,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:28,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 07:15:28,357 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:28,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:28,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1695131831, now seen corresponding path program 1 times [2022-01-11 07:15:28,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:28,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23810824] [2022-01-11 07:15:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:28,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:28,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:28,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23810824] [2022-01-11 07:15:28,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23810824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:28,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:28,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:15:28,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289602067] [2022-01-11 07:15:28,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:28,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:28,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:28,449 INFO L87 Difference]: Start difference. First operand 12548 states and 17144 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:29,851 INFO L93 Difference]: Finished difference Result 32629 states and 42370 transitions. [2022-01-11 07:15:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:29,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2022-01-11 07:15:29,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:29,883 INFO L225 Difference]: With dead ends: 32629 [2022-01-11 07:15:29,883 INFO L226 Difference]: Without dead ends: 22351 [2022-01-11 07:15:29,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:29,897 INFO L933 BasicCegarLoop]: 7160 mSDtfsCounter, 5547 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5547 SdHoareTripleChecker+Valid, 9132 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 [2022-01-11 07:15:29,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5547 Valid, 9132 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:29,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22351 states. [2022-01-11 07:15:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22351 to 22347. [2022-01-11 07:15:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22347 states, 22344 states have (on average 1.3125671321160044) internal successors, (29328), 22346 states have internal predecessors, (29328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22347 states to 22347 states and 29328 transitions. [2022-01-11 07:15:31,366 INFO L78 Accepts]: Start accepts. Automaton has 22347 states and 29328 transitions. Word has length 250 [2022-01-11 07:15:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:31,366 INFO L470 AbstractCegarLoop]: Abstraction has 22347 states and 29328 transitions. [2022-01-11 07:15:31,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 22347 states and 29328 transitions. [2022-01-11 07:15:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-11 07:15:31,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:31,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:31,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 07:15:31,376 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:31,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1524292374, now seen corresponding path program 1 times [2022-01-11 07:15:31,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:31,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499335988] [2022-01-11 07:15:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:31,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:15:31,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:31,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499335988] [2022-01-11 07:15:31,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499335988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:31,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:31,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:15:31,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636812339] [2022-01-11 07:15:31,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:31,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:31,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:31,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:31,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:31,425 INFO L87 Difference]: Start difference. First operand 22347 states and 29328 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:32,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:32,922 INFO L93 Difference]: Finished difference Result 42281 states and 54350 transitions. [2022-01-11 07:15:32,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:32,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 250 [2022-01-11 07:15:32,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:32,953 INFO L225 Difference]: With dead ends: 42281 [2022-01-11 07:15:32,953 INFO L226 Difference]: Without dead ends: 22204 [2022-01-11 07:15:32,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:32,975 INFO L933 BasicCegarLoop]: 5948 mSDtfsCounter, 1986 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 9906 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 [2022-01-11 07:15:32,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1986 Valid, 9906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:32,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22204 states. [2022-01-11 07:15:34,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22204 to 22204. [2022-01-11 07:15:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22204 states, 22201 states have (on average 1.3133192198549615) internal successors, (29157), 22203 states have internal predecessors, (29157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22204 states to 22204 states and 29157 transitions. [2022-01-11 07:15:34,486 INFO L78 Accepts]: Start accepts. Automaton has 22204 states and 29157 transitions. Word has length 250 [2022-01-11 07:15:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:34,486 INFO L470 AbstractCegarLoop]: Abstraction has 22204 states and 29157 transitions. [2022-01-11 07:15:34,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 22204 states and 29157 transitions. [2022-01-11 07:15:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-01-11 07:15:34,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:34,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:34,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 07:15:34,494 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:34,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:34,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1450283159, now seen corresponding path program 1 times [2022-01-11 07:15:34,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:34,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641634804] [2022-01-11 07:15:34,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:34,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:15:34,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:34,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641634804] [2022-01-11 07:15:34,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641634804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:34,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:34,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:15:34,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981016742] [2022-01-11 07:15:34,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:34,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:34,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:34,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:34,567 INFO L87 Difference]: Start difference. First operand 22204 states and 29157 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:37,390 INFO L93 Difference]: Finished difference Result 61614 states and 78441 transitions. [2022-01-11 07:15:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:37,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 251 [2022-01-11 07:15:37,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:37,450 INFO L225 Difference]: With dead ends: 61614 [2022-01-11 07:15:37,450 INFO L226 Difference]: Without dead ends: 41680