/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:02:23,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:02:23,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:02:24,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:02:24,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:02:24,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:02:24,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:02:24,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:02:24,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:02:24,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:02:24,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:02:24,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:02:24,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:02:24,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:02:24,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:02:24,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:02:24,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:02:24,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:02:24,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:02:24,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:02:24,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:02:24,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:02:24,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:02:24,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:02:24,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:02:24,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:02:24,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:02:24,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:02:24,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:02:24,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:02:24,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:02:24,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:02:24,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:02:24,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:02:24,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:02:24,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:02:24,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:02:24,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:02:24,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:02:24,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:02:24,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:02:24,082 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:02:24,119 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:02:24,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:02:24,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:02:24,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:02:24,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:02:24,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:02:24,121 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:02:24,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:02:24,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:02:24,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:02:24,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:02:24,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:02:24,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:02:24,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:02:24,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:02:24,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:02:24,124 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:02:24,124 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:02:24,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:02:24,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:02:24,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:02:24,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:02:24,377 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:02:24,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c [2022-01-10 18:02:24,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2797ffff8/bf5babf8b77a490ea0b27514d8190051/FLAG0f3cc0e3b [2022-01-10 18:02:24,862 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:02:24,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c [2022-01-10 18:02:24,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2797ffff8/bf5babf8b77a490ea0b27514d8190051/FLAG0f3cc0e3b [2022-01-10 18:02:24,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2797ffff8/bf5babf8b77a490ea0b27514d8190051 [2022-01-10 18:02:24,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:02:24,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:02:24,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:02:24,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:02:24,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:02:24,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de15112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24, skipping insertion in model container [2022-01-10 18:02:24,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:02:24,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:02:25,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c[63391,63404] [2022-01-10 18:02:25,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:02:25,423 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:02:25,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:02:25,526 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c[63391,63404] [2022-01-10 18:02:25,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:02:25,535 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:02:25,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c[63391,63404] [2022-01-10 18:02:25,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:02:25,631 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:02:25,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25 WrapperNode [2022-01-10 18:02:25,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:02:25,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:02:25,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:02:25,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:02:25,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,737 INFO L137 Inliner]: procedures = 130, calls = 215, calls flagged for inlining = 125, calls inlined = 318, statements flattened = 4795 [2022-01-10 18:02:25,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:02:25,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:02:25,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:02:25,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:02:25,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:02:25,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:02:25,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:02:25,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:02:25,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (1/1) ... [2022-01-10 18:02:25,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:02:25,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:02:25,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 18:02:25,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 18:02:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 18:02:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:02:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:02:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:02:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:02:26,061 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:02:26,063 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:02:27,771 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:02:27,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:02:27,780 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 18:02:27,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:27 BoogieIcfgContainer [2022-01-10 18:02:27,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:02:27,782 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:02:27,782 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:02:27,783 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:02:27,785 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:27" (1/1) ... [2022-01-10 18:02:28,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:02:28 BasicIcfg [2022-01-10 18:02:28,052 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:02:28,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:02:28,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:02:28,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:02:28,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:02:24" (1/4) ... [2022-01-10 18:02:28,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eb1818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:28, skipping insertion in model container [2022-01-10 18:02:28,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:25" (2/4) ... [2022-01-10 18:02:28,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eb1818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:28, skipping insertion in model container [2022-01-10 18:02:28,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:27" (3/4) ... [2022-01-10 18:02:28,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eb1818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:02:28, skipping insertion in model container [2022-01-10 18:02:28,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:02:28" (4/4) ... [2022-01-10 18:02:28,094 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product21.cil.cTransformedIcfg [2022-01-10 18:02:28,097 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:02:28,097 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 18:02:28,129 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:02:28,133 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 18:02:28,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 18:02:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 1042 states, 1035 states have (on average 1.6772946859903382) internal successors, (1736), 1041 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:28,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 18:02:28,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:28,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:28,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:28,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:28,165 INFO L85 PathProgramCache]: Analyzing trace with hash -949012929, now seen corresponding path program 1 times [2022-01-10 18:02:28,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:28,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770026680] [2022-01-10 18:02:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:28,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:28,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:28,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770026680] [2022-01-10 18:02:28,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770026680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:28,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:28,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:02:28,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587406004] [2022-01-10 18:02:28,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:28,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:02:28,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:02:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:02:28,565 INFO L87 Difference]: Start difference. First operand has 1042 states, 1035 states have (on average 1.6772946859903382) internal successors, (1736), 1041 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:28,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:28,641 INFO L93 Difference]: Finished difference Result 1775 states and 2925 transitions. [2022-01-10 18:02:28,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:02:28,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-10 18:02:28,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:28,659 INFO L225 Difference]: With dead ends: 1775 [2022-01-10 18:02:28,659 INFO L226 Difference]: Without dead ends: 889 [2022-01-10 18:02:28,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:02:28,669 INFO L933 BasicCegarLoop]: 1722 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:28,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-01-10 18:02:28,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2022-01-10 18:02:28,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 883 states have (on average 1.6896942242355606) internal successors, (1492), 888 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1492 transitions. [2022-01-10 18:02:28,730 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1492 transitions. Word has length 51 [2022-01-10 18:02:28,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:28,731 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 1492 transitions. [2022-01-10 18:02:28,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:28,732 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1492 transitions. [2022-01-10 18:02:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 18:02:28,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:28,734 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] [2022-01-10 18:02:28,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:02:28,735 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:28,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1216472253, now seen corresponding path program 1 times [2022-01-10 18:02:28,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:28,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559148597] [2022-01-10 18:02:28,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:28,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:28,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:28,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:28,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559148597] [2022-01-10 18:02:28,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559148597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:28,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:28,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:02:28,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669487447] [2022-01-10 18:02:28,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:28,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:02:28,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:28,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:02:28,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:28,924 INFO L87 Difference]: Start difference. First operand 889 states and 1492 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:28,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:28,986 INFO L93 Difference]: Finished difference Result 1366 states and 2261 transitions. [2022-01-10 18:02:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:02:28,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 18:02:28,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:28,990 INFO L225 Difference]: With dead ends: 1366 [2022-01-10 18:02:28,990 INFO L226 Difference]: Without dead ends: 877 [2022-01-10 18:02:28,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:28,994 INFO L933 BasicCegarLoop]: 1472 mSDtfsCounter, 664 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:28,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 2219 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2022-01-10 18:02:29,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 877. [2022-01-10 18:02:29,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 873 states have (on average 1.688430698739977) internal successors, (1474), 876 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1474 transitions. [2022-01-10 18:02:29,062 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1474 transitions. Word has length 52 [2022-01-10 18:02:29,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:29,064 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1474 transitions. [2022-01-10 18:02:29,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1474 transitions. [2022-01-10 18:02:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 18:02:29,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:29,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:29,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:02:29,071 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:29,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:29,072 INFO L85 PathProgramCache]: Analyzing trace with hash -583769961, now seen corresponding path program 1 times [2022-01-10 18:02:29,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:29,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156262147] [2022-01-10 18:02:29,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:29,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:29,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:29,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156262147] [2022-01-10 18:02:29,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156262147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:29,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:29,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:02:29,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668683549] [2022-01-10 18:02:29,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:29,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:02:29,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:29,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:02:29,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:29,238 INFO L87 Difference]: Start difference. First operand 877 states and 1474 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:29,311 INFO L93 Difference]: Finished difference Result 1735 states and 2920 transitions. [2022-01-10 18:02:29,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:02:29,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 18:02:29,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:29,316 INFO L225 Difference]: With dead ends: 1735 [2022-01-10 18:02:29,317 INFO L226 Difference]: Without dead ends: 877 [2022-01-10 18:02:29,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:29,323 INFO L933 BasicCegarLoop]: 1453 mSDtfsCounter, 1449 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:29,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 1466 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:29,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2022-01-10 18:02:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 877. [2022-01-10 18:02:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 873 states have (on average 1.686139747995418) internal successors, (1472), 876 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1472 transitions. [2022-01-10 18:02:29,349 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1472 transitions. Word has length 92 [2022-01-10 18:02:29,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:29,350 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1472 transitions. [2022-01-10 18:02:29,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,351 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1472 transitions. [2022-01-10 18:02:29,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 18:02:29,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:29,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:29,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:02:29,355 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:29,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:29,356 INFO L85 PathProgramCache]: Analyzing trace with hash 737348503, now seen corresponding path program 1 times [2022-01-10 18:02:29,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:29,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763884011] [2022-01-10 18:02:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:29,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:29,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:29,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763884011] [2022-01-10 18:02:29,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763884011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:29,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:29,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:02:29,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885515659] [2022-01-10 18:02:29,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:29,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:29,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:29,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:29,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:29,487 INFO L87 Difference]: Start difference. First operand 877 states and 1472 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:29,785 INFO L93 Difference]: Finished difference Result 4253 states and 7156 transitions. [2022-01-10 18:02:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:02:29,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 18:02:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:29,797 INFO L225 Difference]: With dead ends: 4253 [2022-01-10 18:02:29,797 INFO L226 Difference]: Without dead ends: 3400 [2022-01-10 18:02:29,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:02:29,805 INFO L933 BasicCegarLoop]: 2867 mSDtfsCounter, 7143 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7143 SdHoareTripleChecker+Valid, 7155 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:29,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7143 Valid, 7155 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:29,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2022-01-10 18:02:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 877. [2022-01-10 18:02:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 873 states have (on average 1.6849942726231386) internal successors, (1471), 876 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1471 transitions. [2022-01-10 18:02:29,850 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1471 transitions. Word has length 94 [2022-01-10 18:02:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:29,850 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1471 transitions. [2022-01-10 18:02:29,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1471 transitions. [2022-01-10 18:02:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 18:02:29,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:29,852 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] [2022-01-10 18:02:29,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:02:29,852 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:29,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1227323149, now seen corresponding path program 1 times [2022-01-10 18:02:29,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:29,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139148860] [2022-01-10 18:02:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:29,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:29,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:29,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139148860] [2022-01-10 18:02:29,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139148860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:29,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:29,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:02:29,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732993429] [2022-01-10 18:02:29,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:29,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:02:29,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:29,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:02:29,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:29,977 INFO L87 Difference]: Start difference. First operand 877 states and 1471 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:30,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:30,031 INFO L93 Difference]: Finished difference Result 1739 states and 2920 transitions. [2022-01-10 18:02:30,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:02:30,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 18:02:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:30,034 INFO L225 Difference]: With dead ends: 1739 [2022-01-10 18:02:30,035 INFO L226 Difference]: Without dead ends: 891 [2022-01-10 18:02:30,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:30,036 INFO L933 BasicCegarLoop]: 1485 mSDtfsCounter, 1450 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:30,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 1507 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2022-01-10 18:02:30,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 877. [2022-01-10 18:02:30,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 873 states have (on average 1.6838487972508591) internal successors, (1470), 876 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:30,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1470 transitions. [2022-01-10 18:02:30,077 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1470 transitions. Word has length 95 [2022-01-10 18:02:30,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:30,081 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1470 transitions. [2022-01-10 18:02:30,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1470 transitions. [2022-01-10 18:02:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 18:02:30,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:30,086 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] [2022-01-10 18:02:30,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:02:30,086 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:30,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:30,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1570643926, now seen corresponding path program 1 times [2022-01-10 18:02:30,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:30,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815233660] [2022-01-10 18:02:30,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:30,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:30,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:30,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815233660] [2022-01-10 18:02:30,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815233660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:30,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:30,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:02:30,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284770597] [2022-01-10 18:02:30,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:30,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:30,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:30,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:30,189 INFO L87 Difference]: Start difference. First operand 877 states and 1470 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:30,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:30,379 INFO L93 Difference]: Finished difference Result 2565 states and 4310 transitions. [2022-01-10 18:02:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:02:30,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-10 18:02:30,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:30,385 INFO L225 Difference]: With dead ends: 2565 [2022-01-10 18:02:30,386 INFO L226 Difference]: Without dead ends: 1722 [2022-01-10 18:02:30,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:02:30,389 INFO L933 BasicCegarLoop]: 1479 mSDtfsCounter, 7066 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7066 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:30,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7066 Valid, 2972 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:30,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-01-10 18:02:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 877. [2022-01-10 18:02:30,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 873 states have (on average 1.6815578465063001) internal successors, (1468), 876 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1468 transitions. [2022-01-10 18:02:30,430 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1468 transitions. Word has length 96 [2022-01-10 18:02:30,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:30,432 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1468 transitions. [2022-01-10 18:02:30,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:30,432 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1468 transitions. [2022-01-10 18:02:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 18:02:30,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:30,434 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] [2022-01-10 18:02:30,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:02:30,434 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:30,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:30,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1866708519, now seen corresponding path program 1 times [2022-01-10 18:02:30,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:30,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236043278] [2022-01-10 18:02:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:30,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:30,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:30,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:30,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236043278] [2022-01-10 18:02:30,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236043278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:30,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:30,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:02:30,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340730307] [2022-01-10 18:02:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:30,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:02:30,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:30,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:02:30,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:02:30,592 INFO L87 Difference]: Start difference. First operand 877 states and 1468 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:31,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:31,698 INFO L93 Difference]: Finished difference Result 4512 states and 7352 transitions. [2022-01-10 18:02:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:02:31,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 18:02:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:31,711 INFO L225 Difference]: With dead ends: 4512 [2022-01-10 18:02:31,711 INFO L226 Difference]: Without dead ends: 3995 [2022-01-10 18:02:31,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:02:31,713 INFO L933 BasicCegarLoop]: 2479 mSDtfsCounter, 11994 mSDsluCounter, 12082 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11994 SdHoareTripleChecker+Valid, 14561 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:31,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11994 Valid, 14561 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 18:02:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2022-01-10 18:02:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 1662. [2022-01-10 18:02:31,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1658 states have (on average 1.686972255729795) internal successors, (2797), 1661 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2797 transitions. [2022-01-10 18:02:31,857 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2797 transitions. Word has length 98 [2022-01-10 18:02:31,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:31,857 INFO L470 AbstractCegarLoop]: Abstraction has 1662 states and 2797 transitions. [2022-01-10 18:02:31,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2797 transitions. [2022-01-10 18:02:31,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 18:02:31,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:31,860 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] [2022-01-10 18:02:31,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:02:31,860 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash -11245162, now seen corresponding path program 1 times [2022-01-10 18:02:31,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:31,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846810174] [2022-01-10 18:02:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:31,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:31,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:31,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846810174] [2022-01-10 18:02:31,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846810174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:31,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:31,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:02:31,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985724259] [2022-01-10 18:02:31,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:31,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:02:31,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:31,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:02:31,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:02:31,936 INFO L87 Difference]: Start difference. First operand 1662 states and 2797 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:32,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:32,123 INFO L93 Difference]: Finished difference Result 2729 states and 4521 transitions. [2022-01-10 18:02:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:02:32,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-10 18:02:32,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:32,130 INFO L225 Difference]: With dead ends: 2729 [2022-01-10 18:02:32,130 INFO L226 Difference]: Without dead ends: 2161 [2022-01-10 18:02:32,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:32,131 INFO L933 BasicCegarLoop]: 1462 mSDtfsCounter, 2562 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:32,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2562 Valid, 3266 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:32,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2022-01-10 18:02:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1662. [2022-01-10 18:02:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1658 states have (on average 1.686369119420989) internal successors, (2796), 1661 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2796 transitions. [2022-01-10 18:02:32,220 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2796 transitions. Word has length 99 [2022-01-10 18:02:32,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:32,220 INFO L470 AbstractCegarLoop]: Abstraction has 1662 states and 2796 transitions. [2022-01-10 18:02:32,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:32,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2796 transitions. [2022-01-10 18:02:32,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 18:02:32,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:32,222 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] [2022-01-10 18:02:32,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:02:32,223 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:32,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:32,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1819092683, now seen corresponding path program 1 times [2022-01-10 18:02:32,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:32,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054525807] [2022-01-10 18:02:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:32,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:32,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:32,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:32,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054525807] [2022-01-10 18:02:32,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054525807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:32,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:32,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:02:32,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999915372] [2022-01-10 18:02:32,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:32,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:32,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:32,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:32,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:32,327 INFO L87 Difference]: Start difference. First operand 1662 states and 2796 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:33,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:33,201 INFO L93 Difference]: Finished difference Result 6292 states and 10204 transitions. [2022-01-10 18:02:33,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:33,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-10 18:02:33,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:33,219 INFO L225 Difference]: With dead ends: 6292 [2022-01-10 18:02:33,219 INFO L226 Difference]: Without dead ends: 5426 [2022-01-10 18:02:33,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:02:33,224 INFO L933 BasicCegarLoop]: 4375 mSDtfsCounter, 3915 mSDsluCounter, 8504 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 12879 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:33,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3915 Valid, 12879 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 18:02:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2022-01-10 18:02:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 2119. [2022-01-10 18:02:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2119 states, 2115 states have (on average 1.6638297872340426) internal successors, (3519), 2118 states have internal predecessors, (3519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:33,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 3519 transitions. [2022-01-10 18:02:33,391 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 3519 transitions. Word has length 99 [2022-01-10 18:02:33,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:33,392 INFO L470 AbstractCegarLoop]: Abstraction has 2119 states and 3519 transitions. [2022-01-10 18:02:33,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:33,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 3519 transitions. [2022-01-10 18:02:33,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 18:02:33,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:33,396 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] [2022-01-10 18:02:33,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:02:33,396 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash 268497372, now seen corresponding path program 1 times [2022-01-10 18:02:33,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:33,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088828842] [2022-01-10 18:02:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:33,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:33,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:33,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088828842] [2022-01-10 18:02:33,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088828842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:33,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:33,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:02:33,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047503936] [2022-01-10 18:02:33,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:33,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:02:33,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:33,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:02:33,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:02:33,548 INFO L87 Difference]: Start difference. First operand 2119 states and 3519 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:35,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:35,032 INFO L93 Difference]: Finished difference Result 8663 states and 14061 transitions. [2022-01-10 18:02:35,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:02:35,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-10 18:02:35,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:35,065 INFO L225 Difference]: With dead ends: 8663 [2022-01-10 18:02:35,065 INFO L226 Difference]: Without dead ends: 7657 [2022-01-10 18:02:35,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:02:35,070 INFO L933 BasicCegarLoop]: 2308 mSDtfsCounter, 13158 mSDsluCounter, 11141 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13158 SdHoareTripleChecker+Valid, 13449 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:35,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13158 Valid, 13449 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 18:02:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7657 states. [2022-01-10 18:02:35,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7657 to 3731. [2022-01-10 18:02:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 3727 states have (on average 1.670244164207137) internal successors, (6225), 3730 states have internal predecessors, (6225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 6225 transitions. [2022-01-10 18:02:35,389 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 6225 transitions. Word has length 100 [2022-01-10 18:02:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:35,389 INFO L470 AbstractCegarLoop]: Abstraction has 3731 states and 6225 transitions. [2022-01-10 18:02:35,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 6225 transitions. [2022-01-10 18:02:35,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 18:02:35,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:35,395 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] [2022-01-10 18:02:35,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:02:35,396 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash 413103868, now seen corresponding path program 1 times [2022-01-10 18:02:35,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:35,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665347366] [2022-01-10 18:02:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:35,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:35,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:35,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:35,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665347366] [2022-01-10 18:02:35,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665347366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:35,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:35,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:35,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755052849] [2022-01-10 18:02:35,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:35,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:02:35,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:35,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:02:35,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:02:35,527 INFO L87 Difference]: Start difference. First operand 3731 states and 6225 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:36,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:36,981 INFO L93 Difference]: Finished difference Result 20468 states and 33800 transitions. [2022-01-10 18:02:36,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:36,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-10 18:02:36,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:37,040 INFO L225 Difference]: With dead ends: 20468 [2022-01-10 18:02:37,040 INFO L226 Difference]: Without dead ends: 18636 [2022-01-10 18:02:37,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:02:37,064 INFO L933 BasicCegarLoop]: 2255 mSDtfsCounter, 8630 mSDsluCounter, 8234 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8630 SdHoareTripleChecker+Valid, 10489 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:37,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8630 Valid, 10489 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:37,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18636 states. [2022-01-10 18:02:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18636 to 7058. [2022-01-10 18:02:37,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7058 states, 7054 states have (on average 1.6716756450240997) internal successors, (11792), 7057 states have internal predecessors, (11792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7058 states to 7058 states and 11792 transitions. [2022-01-10 18:02:37,715 INFO L78 Accepts]: Start accepts. Automaton has 7058 states and 11792 transitions. Word has length 100 [2022-01-10 18:02:37,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:37,716 INFO L470 AbstractCegarLoop]: Abstraction has 7058 states and 11792 transitions. [2022-01-10 18:02:37,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:37,716 INFO L276 IsEmpty]: Start isEmpty. Operand 7058 states and 11792 transitions. [2022-01-10 18:02:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 18:02:37,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:37,724 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] [2022-01-10 18:02:37,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:02:37,725 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:37,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1059388942, now seen corresponding path program 1 times [2022-01-10 18:02:37,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:37,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504756254] [2022-01-10 18:02:37,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:37,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:37,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:37,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504756254] [2022-01-10 18:02:37,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504756254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:37,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:37,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:37,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720180983] [2022-01-10 18:02:37,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:37,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:02:37,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:37,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:02:37,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:02:37,837 INFO L87 Difference]: Start difference. First operand 7058 states and 11792 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:40,460 INFO L93 Difference]: Finished difference Result 38116 states and 63046 transitions. [2022-01-10 18:02:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 18:02:40,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:40,530 INFO L225 Difference]: With dead ends: 38116 [2022-01-10 18:02:40,531 INFO L226 Difference]: Without dead ends: 34862 [2022-01-10 18:02:40,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:02:40,543 INFO L933 BasicCegarLoop]: 2171 mSDtfsCounter, 8493 mSDsluCounter, 6450 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8493 SdHoareTripleChecker+Valid, 8621 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:40,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8493 Valid, 8621 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:02:40,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34862 states. [2022-01-10 18:02:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34862 to 13680. [2022-01-10 18:02:41,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13680 states, 13676 states have (on average 1.6737350102369113) internal successors, (22890), 13679 states have internal predecessors, (22890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13680 states to 13680 states and 22890 transitions. [2022-01-10 18:02:41,609 INFO L78 Accepts]: Start accepts. Automaton has 13680 states and 22890 transitions. Word has length 101 [2022-01-10 18:02:41,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:41,609 INFO L470 AbstractCegarLoop]: Abstraction has 13680 states and 22890 transitions. [2022-01-10 18:02:41,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:41,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13680 states and 22890 transitions. [2022-01-10 18:02:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 18:02:41,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:41,627 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] [2022-01-10 18:02:41,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:02:41,627 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:41,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:41,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1105164668, now seen corresponding path program 1 times [2022-01-10 18:02:41,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:41,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269497098] [2022-01-10 18:02:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:41,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:41,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:41,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269497098] [2022-01-10 18:02:41,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269497098] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:41,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:41,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:41,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412117311] [2022-01-10 18:02:41,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:41,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 18:02:41,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:41,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 18:02:41,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:02:41,820 INFO L87 Difference]: Start difference. First operand 13680 states and 22890 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:45,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:45,218 INFO L93 Difference]: Finished difference Result 37294 states and 60546 transitions. [2022-01-10 18:02:45,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:02:45,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 18:02:45,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:45,273 INFO L225 Difference]: With dead ends: 37294 [2022-01-10 18:02:45,274 INFO L226 Difference]: Without dead ends: 31448 [2022-01-10 18:02:45,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-01-10 18:02:45,287 INFO L933 BasicCegarLoop]: 4612 mSDtfsCounter, 5726 mSDsluCounter, 15448 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5726 SdHoareTripleChecker+Valid, 20060 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:45,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5726 Valid, 20060 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 18:02:45,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31448 states. [2022-01-10 18:02:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31448 to 15280. [2022-01-10 18:02:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15280 states, 15276 states have (on average 1.6576328881906257) internal successors, (25322), 15279 states have internal predecessors, (25322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15280 states to 15280 states and 25322 transitions. [2022-01-10 18:02:46,591 INFO L78 Accepts]: Start accepts. Automaton has 15280 states and 25322 transitions. Word has length 101 [2022-01-10 18:02:46,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:46,591 INFO L470 AbstractCegarLoop]: Abstraction has 15280 states and 25322 transitions. [2022-01-10 18:02:46,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:46,591 INFO L276 IsEmpty]: Start isEmpty. Operand 15280 states and 25322 transitions. [2022-01-10 18:02:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 18:02:46,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:46,611 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] [2022-01-10 18:02:46,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:02:46,612 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:46,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:46,612 INFO L85 PathProgramCache]: Analyzing trace with hash 739064988, now seen corresponding path program 1 times [2022-01-10 18:02:46,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:46,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567934857] [2022-01-10 18:02:46,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:46,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:46,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:46,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567934857] [2022-01-10 18:02:46,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567934857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:46,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:46,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:02:46,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070751913] [2022-01-10 18:02:46,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:46,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:46,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:46,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:46,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:46,696 INFO L87 Difference]: Start difference. First operand 15280 states and 25322 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:49,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:49,124 INFO L93 Difference]: Finished difference Result 45496 states and 75442 transitions. [2022-01-10 18:02:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:02:49,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 18:02:49,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:49,174 INFO L225 Difference]: With dead ends: 45496 [2022-01-10 18:02:49,174 INFO L226 Difference]: Without dead ends: 30266 [2022-01-10 18:02:49,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:02:49,193 INFO L933 BasicCegarLoop]: 2837 mSDtfsCounter, 4338 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:49,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4338 Valid, 4257 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:49,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30266 states. [2022-01-10 18:02:50,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30266 to 15280. [2022-01-10 18:02:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15280 states, 15276 states have (on average 1.657501963864886) internal successors, (25320), 15279 states have internal predecessors, (25320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15280 states to 15280 states and 25320 transitions. [2022-01-10 18:02:50,531 INFO L78 Accepts]: Start accepts. Automaton has 15280 states and 25320 transitions. Word has length 101 [2022-01-10 18:02:50,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:50,531 INFO L470 AbstractCegarLoop]: Abstraction has 15280 states and 25320 transitions. [2022-01-10 18:02:50,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:50,531 INFO L276 IsEmpty]: Start isEmpty. Operand 15280 states and 25320 transitions. [2022-01-10 18:02:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 18:02:50,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:50,548 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] [2022-01-10 18:02:50,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:02:50,549 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:50,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:50,549 INFO L85 PathProgramCache]: Analyzing trace with hash 717519606, now seen corresponding path program 1 times [2022-01-10 18:02:50,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:50,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421113668] [2022-01-10 18:02:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:50,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:50,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:50,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:50,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421113668] [2022-01-10 18:02:50,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421113668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:50,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:50,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:50,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938194244] [2022-01-10 18:02:50,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:50,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:02:50,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:50,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:02:50,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:02:50,642 INFO L87 Difference]: Start difference. First operand 15280 states and 25320 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:02:57,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:57,131 INFO L93 Difference]: Finished difference Result 80312 states and 132088 transitions. [2022-01-10 18:02:57,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:57,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-10 18:02:57,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:57,252 INFO L225 Difference]: With dead ends: 80312 [2022-01-10 18:02:57,253 INFO L226 Difference]: Without dead ends: 73626 [2022-01-10 18:02:57,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:02:57,277 INFO L933 BasicCegarLoop]: 2177 mSDtfsCounter, 8431 mSDsluCounter, 6488 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8431 SdHoareTripleChecker+Valid, 8665 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:57,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8431 Valid, 8665 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73626 states. [2022-01-10 18:03:00,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73626 to 29988. [2022-01-10 18:03:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29988 states, 29984 states have (on average 1.659418356456777) internal successors, (49756), 29987 states have internal predecessors, (49756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:00,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29988 states to 29988 states and 49756 transitions. [2022-01-10 18:03:00,529 INFO L78 Accepts]: Start accepts. Automaton has 29988 states and 49756 transitions. Word has length 102 [2022-01-10 18:03:00,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:03:00,529 INFO L470 AbstractCegarLoop]: Abstraction has 29988 states and 49756 transitions. [2022-01-10 18:03:00,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:00,530 INFO L276 IsEmpty]: Start isEmpty. Operand 29988 states and 49756 transitions. [2022-01-10 18:03:00,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 18:03:00,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:03:00,628 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] [2022-01-10 18:03:00,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:03:00,628 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:03:00,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:03:00,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2115867691, now seen corresponding path program 1 times [2022-01-10 18:03:00,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:03:00,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932161782] [2022-01-10 18:03:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:03:00,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:03:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:03:00,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:03:00,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:03:00,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932161782] [2022-01-10 18:03:00,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932161782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:03:00,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:03:00,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:03:00,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078755457] [2022-01-10 18:03:00,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:03:00,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:03:00,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:03:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:03:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:03:00,723 INFO L87 Difference]: Start difference. First operand 29988 states and 49756 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:04,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:03:04,239 INFO L93 Difference]: Finished difference Result 39882 states and 65654 transitions. [2022-01-10 18:03:04,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:03:04,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-10 18:03:04,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:03:04,299 INFO L225 Difference]: With dead ends: 39882 [2022-01-10 18:03:04,299 INFO L226 Difference]: Without dead ends: 35988 [2022-01-10 18:03:04,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:03:04,315 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 1020 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 4959 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:03:04,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1020 Valid, 4959 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:03:04,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35988 states. [2022-01-10 18:03:07,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35988 to 34946. [2022-01-10 18:03:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34946 states, 34942 states have (on average 1.651479594757026) internal successors, (57706), 34945 states have internal predecessors, (57706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34946 states to 34946 states and 57706 transitions. [2022-01-10 18:03:07,843 INFO L78 Accepts]: Start accepts. Automaton has 34946 states and 57706 transitions. Word has length 102 [2022-01-10 18:03:07,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:03:07,843 INFO L470 AbstractCegarLoop]: Abstraction has 34946 states and 57706 transitions. [2022-01-10 18:03:07,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:07,844 INFO L276 IsEmpty]: Start isEmpty. Operand 34946 states and 57706 transitions. [2022-01-10 18:03:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 18:03:07,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:03:07,875 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] [2022-01-10 18:03:07,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:03:07,876 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:03:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:03:07,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1220453096, now seen corresponding path program 1 times [2022-01-10 18:03:07,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:03:07,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791717314] [2022-01-10 18:03:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:03:07,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:03:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:03:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:03:07,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:03:07,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791717314] [2022-01-10 18:03:07,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791717314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:03:07,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:03:07,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:03:07,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728591699] [2022-01-10 18:03:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:03:07,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:03:07,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:03:07,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:03:07,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:03:07,938 INFO L87 Difference]: Start difference. First operand 34946 states and 57706 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:03:14,466 INFO L93 Difference]: Finished difference Result 65506 states and 106383 transitions. [2022-01-10 18:03:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:03:14,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-10 18:03:14,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:03:14,559 INFO L225 Difference]: With dead ends: 65506 [2022-01-10 18:03:14,559 INFO L226 Difference]: Without dead ends: 45536 [2022-01-10 18:03:14,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:03:14,598 INFO L933 BasicCegarLoop]: 1719 mSDtfsCounter, 716 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:03:14,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [716 Valid, 2758 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:03:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45536 states. [2022-01-10 18:03:19,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45536 to 34946. [2022-01-10 18:03:19,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34946 states, 34942 states have (on average 1.6446110697727663) internal successors, (57466), 34945 states have internal predecessors, (57466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:19,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34946 states to 34946 states and 57466 transitions. [2022-01-10 18:03:19,324 INFO L78 Accepts]: Start accepts. Automaton has 34946 states and 57466 transitions. Word has length 104 [2022-01-10 18:03:19,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:03:19,324 INFO L470 AbstractCegarLoop]: Abstraction has 34946 states and 57466 transitions. [2022-01-10 18:03:19,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand 34946 states and 57466 transitions. [2022-01-10 18:03:19,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 18:03:19,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:03:19,392 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] [2022-01-10 18:03:19,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:03:19,392 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:03:19,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:03:19,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1215794679, now seen corresponding path program 1 times [2022-01-10 18:03:19,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:03:19,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970005005] [2022-01-10 18:03:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:03:19,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:03:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:03:19,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:03:19,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:03:19,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970005005] [2022-01-10 18:03:19,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970005005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:03:19,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:03:19,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:03:19,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573724779] [2022-01-10 18:03:19,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:03:19,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:03:19,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:03:19,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:03:19,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:03:19,650 INFO L87 Difference]: Start difference. First operand 34946 states and 57466 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:03:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:03:31,236 INFO L93 Difference]: Finished difference Result 102336 states and 165786 transitions. [2022-01-10 18:03:31,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:03:31,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-10 18:03:31,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:03:31,421 INFO L225 Difference]: With dead ends: 102336 [2022-01-10 18:03:31,421 INFO L226 Difference]: Without dead ends: 81726 [2022-01-10 18:03:31,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:03:31,471 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 2759 mSDsluCounter, 4462 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2759 SdHoareTripleChecker+Valid, 5991 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:03:31,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2759 Valid, 5991 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:03:31,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81726 states.