/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:52:03,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:52:03,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:52:04,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:52:04,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:52:04,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:52:04,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:52:04,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:52:04,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:52:04,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:52:04,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:52:04,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:52:04,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:52:04,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:52:04,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:52:04,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:52:04,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:52:04,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:52:04,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:52:04,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:52:04,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:52:04,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:52:04,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:52:04,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:52:04,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:52:04,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:52:04,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:52:04,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:52:04,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:52:04,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:52:04,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:52:04,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:52:04,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:52:04,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:52:04,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:52:04,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:52:04,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:52:04,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:52:04,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:52:04,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:52:04,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:52:04,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:52:04,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:52:04,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:52:04,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:52:04,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:52:04,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:52:04,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:52:04,097 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:52:04,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:52:04,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:52:04,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:52:04,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:52:04,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:52:04,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:52:04,099 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:52:04,099 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:52:04,099 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:52:04,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:52:04,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:52:04,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:52:04,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:52:04,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:52:04,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:52:04,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:52:04,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:52:04,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:52:04,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:52:04,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:52:04,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:52:04,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:52:04,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:52:04,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:52:04,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:52:04,102 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:52:04,102 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:52:04,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:52:04,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:52:04,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:52:04,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:52:04,320 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:52:04,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2022-01-10 23:52:04,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ae525c0/9b9db2d4cd6741379229d46ca2388046/FLAGe72e81fa3 [2022-01-10 23:52:04,789 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:52:04,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2022-01-10 23:52:04,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ae525c0/9b9db2d4cd6741379229d46ca2388046/FLAGe72e81fa3 [2022-01-10 23:52:04,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67ae525c0/9b9db2d4cd6741379229d46ca2388046 [2022-01-10 23:52:04,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:52:04,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:52:04,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:52:04,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:52:04,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:52:04,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:52:04" (1/1) ... [2022-01-10 23:52:04,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170a84c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:04, skipping insertion in model container [2022-01-10 23:52:04,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:52:04" (1/1) ... [2022-01-10 23:52:04,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:52:04,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:52:05,185 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_product20.cil.c[17698,17711] [2022-01-10 23:52:05,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:52:05,365 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:52:05,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:52:05,410 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_product20.cil.c[17698,17711] [2022-01-10 23:52:05,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:52:05,459 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:52:05,480 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_product20.cil.c[17698,17711] [2022-01-10 23:52:05,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:52:05,541 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:52:05,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05 WrapperNode [2022-01-10 23:52:05,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:52:05,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:52:05,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:52:05,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:52:05,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,678 INFO L137 Inliner]: procedures = 130, calls = 215, calls flagged for inlining = 125, calls inlined = 264, statements flattened = 3937 [2022-01-10 23:52:05,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:52:05,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:52:05,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:52:05,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:52:05,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:52:05,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:52:05,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:52:05,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:52:05,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (1/1) ... [2022-01-10 23:52:05,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:52:05,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:52:05,813 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 23:52:05,819 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 23:52:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 23:52:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:52:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:52:05,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:52:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:52:06,010 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:52:06,011 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:52:07,502 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:52:07,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:52:07,519 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:52:07,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:52:07 BoogieIcfgContainer [2022-01-10 23:52:07,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:52:07,521 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:52:07,521 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:52:07,532 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:52:07,534 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:52:07" (1/1) ... [2022-01-10 23:52:07,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:52:07 BasicIcfg [2022-01-10 23:52:07,808 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:52:07,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:52:07,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:52:07,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:52:07,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:52:04" (1/4) ... [2022-01-10 23:52:07,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767645a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:52:07, skipping insertion in model container [2022-01-10 23:52:07,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:05" (2/4) ... [2022-01-10 23:52:07,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767645a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:52:07, skipping insertion in model container [2022-01-10 23:52:07,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:52:07" (3/4) ... [2022-01-10 23:52:07,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767645a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:52:07, skipping insertion in model container [2022-01-10 23:52:07,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:52:07" (4/4) ... [2022-01-10 23:52:07,812 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.cTransformedIcfg [2022-01-10 23:52:07,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:52:07,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 23:52:07,844 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:52:07,848 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 23:52:07,848 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 23:52:07,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 922 states, 915 states have (on average 1.6939890710382515) internal successors, (1550), 921 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 23:52:07,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:07,874 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 23:52:07,874 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 23:52:07,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1430592713, now seen corresponding path program 1 times [2022-01-10 23:52:07,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:07,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879642245] [2022-01-10 23:52:07,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:07,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:08,250 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 23:52:08,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:08,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879642245] [2022-01-10 23:52:08,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879642245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:08,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:08,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:52:08,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925032577] [2022-01-10 23:52:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:08,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:52:08,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:52:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:52:08,279 INFO L87 Difference]: Start difference. First operand has 922 states, 915 states have (on average 1.6939890710382515) internal successors, (1550), 921 states have internal predecessors, (1550), 0 states have call successors, (0), 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 23:52:08,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:08,342 INFO L93 Difference]: Finished difference Result 1535 states and 2553 transitions. [2022-01-10 23:52:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:52:08,344 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 23:52:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:08,360 INFO L225 Difference]: With dead ends: 1535 [2022-01-10 23:52:08,360 INFO L226 Difference]: Without dead ends: 809 [2022-01-10 23:52:08,367 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 23:52:08,369 INFO L933 BasicCegarLoop]: 1536 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, 1536 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 23:52:08,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-01-10 23:52:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2022-01-10 23:52:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 803 states have (on average 1.7036114570361145) internal successors, (1368), 808 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1368 transitions. [2022-01-10 23:52:08,460 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1368 transitions. Word has length 51 [2022-01-10 23:52:08,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:08,461 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1368 transitions. [2022-01-10 23:52:08,461 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 23:52:08,461 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1368 transitions. [2022-01-10 23:52:08,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:52:08,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:08,463 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 23:52:08,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:52:08,464 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 23:52:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:08,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1707060413, now seen corresponding path program 1 times [2022-01-10 23:52:08,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:08,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228157331] [2022-01-10 23:52:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:08,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:08,626 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 23:52:08,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:08,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228157331] [2022-01-10 23:52:08,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228157331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:08,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:08,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:52:08,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729733549] [2022-01-10 23:52:08,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:08,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:08,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:08,628 INFO L87 Difference]: Start difference. First operand 809 states and 1368 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 23:52:08,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:08,701 INFO L93 Difference]: Finished difference Result 1206 states and 2013 transitions. [2022-01-10 23:52:08,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:08,701 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 23:52:08,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:08,705 INFO L225 Difference]: With dead ends: 1206 [2022-01-10 23:52:08,705 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 23:52:08,706 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 23:52:08,707 INFO L933 BasicCegarLoop]: 1348 mSDtfsCounter, 664 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1971 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 23:52:08,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 1971 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:08,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 23:52:08,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2022-01-10 23:52:08,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.7023959646910467) internal successors, (1350), 796 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1350 transitions. [2022-01-10 23:52:08,732 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1350 transitions. Word has length 52 [2022-01-10 23:52:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:08,733 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1350 transitions. [2022-01-10 23:52:08,735 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 23:52:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1350 transitions. [2022-01-10 23:52:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 23:52:08,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:08,744 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 23:52:08,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:52:08,744 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 23:52:08,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash 40653495, now seen corresponding path program 1 times [2022-01-10 23:52:08,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:08,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047279221] [2022-01-10 23:52:08,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:08,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:08,898 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 23:52:08,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:08,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047279221] [2022-01-10 23:52:08,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047279221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:08,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:08,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:08,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509845950] [2022-01-10 23:52:08,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:08,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:08,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:08,902 INFO L87 Difference]: Start difference. First operand 797 states and 1350 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 23:52:09,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:09,000 INFO L93 Difference]: Finished difference Result 1575 states and 2672 transitions. [2022-01-10 23:52:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:09,001 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 23:52:09,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:09,004 INFO L225 Difference]: With dead ends: 1575 [2022-01-10 23:52:09,004 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 23:52:09,008 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 23:52:09,010 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1325 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1342 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 23:52:09,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 1342 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:09,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 23:52:09,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2022-01-10 23:52:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.699873896595208) internal successors, (1348), 796 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1348 transitions. [2022-01-10 23:52:09,030 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1348 transitions. Word has length 92 [2022-01-10 23:52:09,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:09,032 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1348 transitions. [2022-01-10 23:52:09,032 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 23:52:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1348 transitions. [2022-01-10 23:52:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 23:52:09,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:09,034 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 23:52:09,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:52:09,034 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 23:52:09,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:09,035 INFO L85 PathProgramCache]: Analyzing trace with hash -350066953, now seen corresponding path program 1 times [2022-01-10 23:52:09,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:09,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836112332] [2022-01-10 23:52:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:09,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:09,154 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 23:52:09,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:09,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836112332] [2022-01-10 23:52:09,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836112332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:09,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:09,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:09,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604034837] [2022-01-10 23:52:09,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:09,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:09,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:09,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:09,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:09,157 INFO L87 Difference]: Start difference. First operand 797 states and 1348 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 23:52:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:09,368 INFO L93 Difference]: Finished difference Result 3853 states and 6536 transitions. [2022-01-10 23:52:09,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:52:09,368 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 23:52:09,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:09,377 INFO L225 Difference]: With dead ends: 3853 [2022-01-10 23:52:09,377 INFO L226 Difference]: Without dead ends: 3080 [2022-01-10 23:52:09,379 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 23:52:09,383 INFO L933 BasicCegarLoop]: 2619 mSDtfsCounter, 6523 mSDsluCounter, 3916 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 6535 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 23:52:09,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6523 Valid, 6535 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2022-01-10 23:52:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 797. [2022-01-10 23:52:09,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.6986128625472887) internal successors, (1347), 796 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1347 transitions. [2022-01-10 23:52:09,443 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1347 transitions. Word has length 94 [2022-01-10 23:52:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:09,444 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1347 transitions. [2022-01-10 23:52:09,444 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 23:52:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1347 transitions. [2022-01-10 23:52:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 23:52:09,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:09,445 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 23:52:09,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:52:09,446 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 23:52:09,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:09,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1915357923, now seen corresponding path program 1 times [2022-01-10 23:52:09,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:09,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356020870] [2022-01-10 23:52:09,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:09,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:09,560 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 23:52:09,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:09,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356020870] [2022-01-10 23:52:09,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356020870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:09,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:09,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:09,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796367845] [2022-01-10 23:52:09,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:09,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:09,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:09,563 INFO L87 Difference]: Start difference. First operand 797 states and 1347 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 23:52:09,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:09,625 INFO L93 Difference]: Finished difference Result 1579 states and 2672 transitions. [2022-01-10 23:52:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:09,626 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 23:52:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:09,628 INFO L225 Difference]: With dead ends: 1579 [2022-01-10 23:52:09,628 INFO L226 Difference]: Without dead ends: 811 [2022-01-10 23:52:09,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:09,630 INFO L933 BasicCegarLoop]: 1361 mSDtfsCounter, 1326 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1383 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 23:52:09,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 1383 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-01-10 23:52:09,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 797. [2022-01-10 23:52:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.6973518284993694) internal successors, (1346), 796 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1346 transitions. [2022-01-10 23:52:09,675 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1346 transitions. Word has length 95 [2022-01-10 23:52:09,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:09,675 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1346 transitions. [2022-01-10 23:52:09,675 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 23:52:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1346 transitions. [2022-01-10 23:52:09,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 23:52:09,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:09,679 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 23:52:09,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:52:09,680 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 23:52:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:09,680 INFO L85 PathProgramCache]: Analyzing trace with hash 378508406, now seen corresponding path program 1 times [2022-01-10 23:52:09,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:09,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924611288] [2022-01-10 23:52:09,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:09,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:09,770 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 23:52:09,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:09,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924611288] [2022-01-10 23:52:09,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924611288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:09,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:09,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:09,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010990836] [2022-01-10 23:52:09,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:09,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:09,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:09,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:09,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:09,771 INFO L87 Difference]: Start difference. First operand 797 states and 1346 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 23:52:09,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:09,981 INFO L93 Difference]: Finished difference Result 2325 states and 3938 transitions. [2022-01-10 23:52:09,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:52:09,982 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 23:52:09,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:09,987 INFO L225 Difference]: With dead ends: 2325 [2022-01-10 23:52:09,987 INFO L226 Difference]: Without dead ends: 1562 [2022-01-10 23:52:09,988 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 23:52:09,989 INFO L933 BasicCegarLoop]: 1355 mSDtfsCounter, 6446 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6446 SdHoareTripleChecker+Valid, 2724 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 23:52:09,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6446 Valid, 2724 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:09,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-01-10 23:52:10,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 797. [2022-01-10 23:52:10,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.694829760403531) internal successors, (1344), 796 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1344 transitions. [2022-01-10 23:52:10,031 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1344 transitions. Word has length 96 [2022-01-10 23:52:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:10,032 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1344 transitions. [2022-01-10 23:52:10,032 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 23:52:10,032 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1344 transitions. [2022-01-10 23:52:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 23:52:10,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:10,034 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 23:52:10,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:52:10,034 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 23:52:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:10,034 INFO L85 PathProgramCache]: Analyzing trace with hash -615610439, now seen corresponding path program 1 times [2022-01-10 23:52:10,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:10,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532690669] [2022-01-10 23:52:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:10,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:10,178 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 23:52:10,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:10,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532690669] [2022-01-10 23:52:10,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532690669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:10,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:10,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:52:10,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726404191] [2022-01-10 23:52:10,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:10,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:52:10,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:10,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:52:10,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:52:10,179 INFO L87 Difference]: Start difference. First operand 797 states and 1344 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 23:52:11,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:11,185 INFO L93 Difference]: Finished difference Result 3968 states and 6496 transitions. [2022-01-10 23:52:11,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:52:11,186 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 23:52:11,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:11,196 INFO L225 Difference]: With dead ends: 3968 [2022-01-10 23:52:11,196 INFO L226 Difference]: Without dead ends: 3531 [2022-01-10 23:52:11,197 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 23:52:11,198 INFO L933 BasicCegarLoop]: 1949 mSDtfsCounter, 9503 mSDsluCounter, 11535 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 13484 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:11,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9503 Valid, 13484 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 23:52:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2022-01-10 23:52:11,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 1502. [2022-01-10 23:52:11,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1498 states have (on average 1.7016021361815754) internal successors, (2549), 1501 states have internal predecessors, (2549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2549 transitions. [2022-01-10 23:52:11,288 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2549 transitions. Word has length 98 [2022-01-10 23:52:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:11,289 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2549 transitions. [2022-01-10 23:52:11,289 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 23:52:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2549 transitions. [2022-01-10 23:52:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 23:52:11,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:11,291 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 23:52:11,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:52:11,291 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 23:52:11,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:11,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1219804352, now seen corresponding path program 1 times [2022-01-10 23:52:11,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:11,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612687149] [2022-01-10 23:52:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:11,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:11,366 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 23:52:11,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:11,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612687149] [2022-01-10 23:52:11,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612687149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:11,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:11,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:11,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486218030] [2022-01-10 23:52:11,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:11,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:52:11,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:52:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:52:11,368 INFO L87 Difference]: Start difference. First operand 1502 states and 2549 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 23:52:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:11,521 INFO L93 Difference]: Finished difference Result 2406 states and 4020 transitions. [2022-01-10 23:52:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:52:11,521 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 23:52:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:11,526 INFO L225 Difference]: With dead ends: 2406 [2022-01-10 23:52:11,526 INFO L226 Difference]: Without dead ends: 1918 [2022-01-10 23:52:11,527 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 23:52:11,527 INFO L933 BasicCegarLoop]: 1338 mSDtfsCounter, 2185 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 3013 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 23:52:11,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 3013 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:11,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-01-10 23:52:11,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1502. [2022-01-10 23:52:11,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1498 states have (on average 1.7009345794392523) internal successors, (2548), 1501 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2548 transitions. [2022-01-10 23:52:11,607 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2548 transitions. Word has length 99 [2022-01-10 23:52:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:11,607 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2548 transitions. [2022-01-10 23:52:11,607 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 23:52:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2548 transitions. [2022-01-10 23:52:11,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 23:52:11,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:11,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:11,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:52:11,609 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 23:52:11,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1267315423, now seen corresponding path program 1 times [2022-01-10 23:52:11,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:11,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686355812] [2022-01-10 23:52:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:11,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:11,735 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 23:52:11,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:11,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686355812] [2022-01-10 23:52:11,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686355812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:11,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:11,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:11,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050156429] [2022-01-10 23:52:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:11,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:11,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:11,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:11,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:11,739 INFO L87 Difference]: Start difference. First operand 1502 states and 2548 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 23:52:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:12,280 INFO L93 Difference]: Finished difference Result 4860 states and 8060 transitions. [2022-01-10 23:52:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:12,280 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 23:52:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:12,292 INFO L225 Difference]: With dead ends: 4860 [2022-01-10 23:52:12,292 INFO L226 Difference]: Without dead ends: 4154 [2022-01-10 23:52:12,293 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 23:52:12,294 INFO L933 BasicCegarLoop]: 3706 mSDtfsCounter, 3289 mSDsluCounter, 6972 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 10678 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:12,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3289 Valid, 10678 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:52:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4154 states. [2022-01-10 23:52:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4154 to 1899. [2022-01-10 23:52:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1895 states have (on average 1.6770448548812664) internal successors, (3178), 1898 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:12,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 3178 transitions. [2022-01-10 23:52:12,418 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 3178 transitions. Word has length 99 [2022-01-10 23:52:12,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:12,418 INFO L470 AbstractCegarLoop]: Abstraction has 1899 states and 3178 transitions. [2022-01-10 23:52:12,418 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 23:52:12,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 3178 transitions. [2022-01-10 23:52:12,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 23:52:12,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:12,420 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 23:52:12,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:52:12,421 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 23:52:12,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:12,421 INFO L85 PathProgramCache]: Analyzing trace with hash 113740957, now seen corresponding path program 1 times [2022-01-10 23:52:12,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:12,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127584576] [2022-01-10 23:52:12,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:12,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:12,538 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 23:52:12,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:12,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127584576] [2022-01-10 23:52:12,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127584576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:12,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:12,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:52:12,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051551295] [2022-01-10 23:52:12,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:12,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:52:12,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:12,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:52:12,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:52:12,539 INFO L87 Difference]: Start difference. First operand 1899 states and 3178 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 23:52:13,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:13,772 INFO L93 Difference]: Finished difference Result 7532 states and 12302 transitions. [2022-01-10 23:52:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:52:13,772 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 23:52:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:13,791 INFO L225 Difference]: With dead ends: 7532 [2022-01-10 23:52:13,791 INFO L226 Difference]: Without dead ends: 6686 [2022-01-10 23:52:13,794 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 23:52:13,794 INFO L933 BasicCegarLoop]: 1778 mSDtfsCounter, 10422 mSDsluCounter, 10630 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10422 SdHoareTripleChecker+Valid, 12408 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:13,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10422 Valid, 12408 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:52:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2022-01-10 23:52:14,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 3351. [2022-01-10 23:52:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3347 states have (on average 1.683896026292202) internal successors, (5636), 3350 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 5636 transitions. [2022-01-10 23:52:14,053 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 5636 transitions. Word has length 100 [2022-01-10 23:52:14,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:14,054 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 5636 transitions. [2022-01-10 23:52:14,054 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 23:52:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 5636 transitions. [2022-01-10 23:52:14,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 23:52:14,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:14,058 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 23:52:14,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:52:14,058 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 23:52:14,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:14,058 INFO L85 PathProgramCache]: Analyzing trace with hash 258347453, now seen corresponding path program 1 times [2022-01-10 23:52:14,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:14,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199225072] [2022-01-10 23:52:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:14,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:14,149 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 23:52:14,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:14,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199225072] [2022-01-10 23:52:14,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199225072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:14,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:14,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:52:14,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99454033] [2022-01-10 23:52:14,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:14,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:52:14,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:14,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:52:14,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:52:14,150 INFO L87 Difference]: Start difference. First operand 3351 states and 5636 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 23:52:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:15,343 INFO L93 Difference]: Finished difference Result 17808 states and 29677 transitions. [2022-01-10 23:52:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:15,343 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 23:52:15,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:15,380 INFO L225 Difference]: With dead ends: 17808 [2022-01-10 23:52:15,381 INFO L226 Difference]: Without dead ends: 16356 [2022-01-10 23:52:15,386 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 23:52:15,386 INFO L933 BasicCegarLoop]: 1945 mSDtfsCounter, 7700 mSDsluCounter, 7366 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7700 SdHoareTripleChecker+Valid, 9311 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 23:52:15,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7700 Valid, 9311 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2022-01-10 23:52:15,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 6378. [2022-01-10 23:52:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6374 states have (on average 1.6846564166928146) internal successors, (10738), 6377 states have internal predecessors, (10738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 10738 transitions. [2022-01-10 23:52:15,862 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 10738 transitions. Word has length 100 [2022-01-10 23:52:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:15,862 INFO L470 AbstractCegarLoop]: Abstraction has 6378 states and 10738 transitions. [2022-01-10 23:52:15,862 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 23:52:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 10738 transitions. [2022-01-10 23:52:15,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 23:52:15,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:15,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:15,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:52:15,871 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 23:52:15,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:15,871 INFO L85 PathProgramCache]: Analyzing trace with hash 972967677, now seen corresponding path program 1 times [2022-01-10 23:52:15,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:15,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025853276] [2022-01-10 23:52:15,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:15,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:15,963 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 23:52:15,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:15,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025853276] [2022-01-10 23:52:15,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025853276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:15,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:15,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:52:15,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905575967] [2022-01-10 23:52:15,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:15,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:52:15,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:15,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:52:15,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:52:15,964 INFO L87 Difference]: Start difference. First operand 6378 states and 10738 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 23:52:18,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:18,199 INFO L93 Difference]: Finished difference Result 33356 states and 55668 transitions. [2022-01-10 23:52:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:18,200 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 23:52:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:18,252 INFO L225 Difference]: With dead ends: 33356 [2022-01-10 23:52:18,252 INFO L226 Difference]: Without dead ends: 30782 [2022-01-10 23:52:18,260 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 23:52:18,261 INFO L933 BasicCegarLoop]: 1923 mSDtfsCounter, 7501 mSDsluCounter, 5830 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7501 SdHoareTripleChecker+Valid, 7753 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:18,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7501 Valid, 7753 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:18,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30782 states. [2022-01-10 23:52:19,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30782 to 12400. [2022-01-10 23:52:19,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12400 states, 12396 states have (on average 1.6865117779929009) internal successors, (20906), 12399 states have internal predecessors, (20906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12400 states to 12400 states and 20906 transitions. [2022-01-10 23:52:19,339 INFO L78 Accepts]: Start accepts. Automaton has 12400 states and 20906 transitions. Word has length 101 [2022-01-10 23:52:19,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:19,339 INFO L470 AbstractCegarLoop]: Abstraction has 12400 states and 20906 transitions. [2022-01-10 23:52:19,340 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 23:52:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 12400 states and 20906 transitions. [2022-01-10 23:52:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 23:52:19,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:19,355 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 23:52:19,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:52:19,356 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 23:52:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash -432659994, now seen corresponding path program 1 times [2022-01-10 23:52:19,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:19,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563105300] [2022-01-10 23:52:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:19,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:19,441 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 23:52:19,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:19,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563105300] [2022-01-10 23:52:19,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563105300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:19,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:19,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:52:19,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404685704] [2022-01-10 23:52:19,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:19,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:52:19,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:19,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:52:19,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:52:19,443 INFO L87 Difference]: Start difference. First operand 12400 states and 20906 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 23:52:21,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:21,572 INFO L93 Difference]: Finished difference Result 29274 states and 48622 transitions. [2022-01-10 23:52:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:52:21,572 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 23:52:21,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:21,616 INFO L225 Difference]: With dead ends: 29274 [2022-01-10 23:52:21,617 INFO L226 Difference]: Without dead ends: 24708 [2022-01-10 23:52:21,629 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 23:52:21,630 INFO L933 BasicCegarLoop]: 3944 mSDtfsCounter, 4670 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 16812 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:21,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4670 Valid, 16812 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:52:21,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24708 states. [2022-01-10 23:52:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24708 to 14000. [2022-01-10 23:52:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14000 states, 13996 states have (on average 1.66747642183481) internal successors, (23338), 13999 states have internal predecessors, (23338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14000 states to 14000 states and 23338 transitions. [2022-01-10 23:52:22,912 INFO L78 Accepts]: Start accepts. Automaton has 14000 states and 23338 transitions. Word has length 101 [2022-01-10 23:52:22,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:22,912 INFO L470 AbstractCegarLoop]: Abstraction has 14000 states and 23338 transitions. [2022-01-10 23:52:22,912 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 23:52:22,913 INFO L276 IsEmpty]: Start isEmpty. Operand 14000 states and 23338 transitions. [2022-01-10 23:52:22,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 23:52:22,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:22,929 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 23:52:22,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:52:22,929 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 23:52:22,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash -914315097, now seen corresponding path program 1 times [2022-01-10 23:52:22,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:22,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487425899] [2022-01-10 23:52:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:22,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:23,004 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 23:52:23,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:23,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487425899] [2022-01-10 23:52:23,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487425899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:23,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:23,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:23,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227553354] [2022-01-10 23:52:23,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:23,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:23,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:23,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:23,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:23,006 INFO L87 Difference]: Start difference. First operand 14000 states and 23338 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 23:52:25,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:25,119 INFO L93 Difference]: Finished difference Result 41656 states and 69490 transitions. [2022-01-10 23:52:25,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:52:25,120 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 23:52:25,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:25,165 INFO L225 Difference]: With dead ends: 41656 [2022-01-10 23:52:25,166 INFO L226 Difference]: Without dead ends: 27706 [2022-01-10 23:52:25,185 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 23:52:25,185 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 3966 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:25,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3966 Valid, 3885 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27706 states. [2022-01-10 23:52:26,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27706 to 14000. [2022-01-10 23:52:26,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14000 states, 13996 states have (on average 1.667333523863961) internal successors, (23336), 13999 states have internal predecessors, (23336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:26,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14000 states to 14000 states and 23336 transitions. [2022-01-10 23:52:26,277 INFO L78 Accepts]: Start accepts. Automaton has 14000 states and 23336 transitions. Word has length 101 [2022-01-10 23:52:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:26,277 INFO L470 AbstractCegarLoop]: Abstraction has 14000 states and 23336 transitions. [2022-01-10 23:52:26,277 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 23:52:26,277 INFO L276 IsEmpty]: Start isEmpty. Operand 14000 states and 23336 transitions. [2022-01-10 23:52:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 23:52:26,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:26,295 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 23:52:26,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:52:26,296 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 23:52:26,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:26,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1830903543, now seen corresponding path program 1 times [2022-01-10 23:52:26,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:26,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622242266] [2022-01-10 23:52:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:26,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:26,395 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 23:52:26,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:26,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622242266] [2022-01-10 23:52:26,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622242266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:26,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:26,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:52:26,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678675861] [2022-01-10 23:52:26,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:26,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:52:26,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:26,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:52:26,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:52:26,397 INFO L87 Difference]: Start difference. First operand 14000 states and 23336 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 23:52:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:31,677 INFO L93 Difference]: Finished difference Result 71352 states and 118200 transitions. [2022-01-10 23:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:31,679 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 23:52:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:31,779 INFO L225 Difference]: With dead ends: 71352 [2022-01-10 23:52:31,779 INFO L226 Difference]: Without dead ends: 65946 [2022-01-10 23:52:31,801 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 23:52:31,803 INFO L933 BasicCegarLoop]: 1929 mSDtfsCounter, 7439 mSDsluCounter, 5868 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7439 SdHoareTripleChecker+Valid, 7797 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 23:52:31,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7439 Valid, 7797 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:31,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65946 states. [2022-01-10 23:52:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65946 to 27508. [2022-01-10 23:52:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27508 states, 27504 states have (on average 1.669284467713787) internal successors, (45912), 27507 states have internal predecessors, (45912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27508 states to 27508 states and 45912 transitions. [2022-01-10 23:52:34,533 INFO L78 Accepts]: Start accepts. Automaton has 27508 states and 45912 transitions. Word has length 102 [2022-01-10 23:52:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:34,533 INFO L470 AbstractCegarLoop]: Abstraction has 27508 states and 45912 transitions. [2022-01-10 23:52:34,533 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 23:52:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 27508 states and 45912 transitions. [2022-01-10 23:52:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 23:52:34,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:34,566 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 23:52:34,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:52:34,567 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 23:52:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1002483754, now seen corresponding path program 1 times [2022-01-10 23:52:34,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:34,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484357621] [2022-01-10 23:52:34,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:34,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:34,650 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 23:52:34,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:34,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484357621] [2022-01-10 23:52:34,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484357621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:34,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:34,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:34,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025389549] [2022-01-10 23:52:34,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:34,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:34,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:34,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:34,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:34,653 INFO L87 Difference]: Start difference. First operand 27508 states and 45912 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 23:52:37,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:37,697 INFO L93 Difference]: Finished difference Result 36522 states and 60446 transitions. [2022-01-10 23:52:37,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:52:37,698 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 23:52:37,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:37,750 INFO L225 Difference]: With dead ends: 36522 [2022-01-10 23:52:37,751 INFO L226 Difference]: Without dead ends: 32708 [2022-01-10 23:52:37,763 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 23:52:37,764 INFO L933 BasicCegarLoop]: 1339 mSDtfsCounter, 927 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 4525 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:37,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 4525 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:37,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32708 states. [2022-01-10 23:52:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32708 to 32466. [2022-01-10 23:52:40,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32466 states, 32462 states have (on average 1.6592323331895755) internal successors, (53862), 32465 states have internal predecessors, (53862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:40,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32466 states to 32466 states and 53862 transitions. [2022-01-10 23:52:40,572 INFO L78 Accepts]: Start accepts. Automaton has 32466 states and 53862 transitions. Word has length 102 [2022-01-10 23:52:40,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:40,572 INFO L470 AbstractCegarLoop]: Abstraction has 32466 states and 53862 transitions. [2022-01-10 23:52:40,572 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 23:52:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 32466 states and 53862 transitions. [2022-01-10 23:52:40,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 23:52:40,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:40,598 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 23:52:40,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 23:52:40,599 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 23:52:40,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:40,599 INFO L85 PathProgramCache]: Analyzing trace with hash -372811543, now seen corresponding path program 1 times [2022-01-10 23:52:40,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:40,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947875269] [2022-01-10 23:52:40,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:40,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:40,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:40,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947875269] [2022-01-10 23:52:40,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947875269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:40,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:40,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:40,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934484700] [2022-01-10 23:52:40,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:40,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:40,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:40,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:40,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:40,685 INFO L87 Difference]: Start difference. First operand 32466 states and 53862 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 23:52:44,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:44,614 INFO L93 Difference]: Finished difference Result 60546 states and 98695 transitions. [2022-01-10 23:52:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:44,614 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 23:52:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:44,681 INFO L225 Difference]: With dead ends: 60546 [2022-01-10 23:52:44,682 INFO L226 Difference]: Without dead ends: 42256 [2022-01-10 23:52:44,702 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 23:52:44,706 INFO L933 BasicCegarLoop]: 1564 mSDtfsCounter, 623 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2541 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 23:52:44,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 2541 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42256 states. [2022-01-10 23:52:47,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42256 to 32466. [2022-01-10 23:52:47,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32466 states, 32462 states have (on average 1.6518390733781037) internal successors, (53622), 32465 states have internal predecessors, (53622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32466 states to 32466 states and 53622 transitions. [2022-01-10 23:52:47,816 INFO L78 Accepts]: Start accepts. Automaton has 32466 states and 53622 transitions. Word has length 104 [2022-01-10 23:52:47,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:47,816 INFO L470 AbstractCegarLoop]: Abstraction has 32466 states and 53622 transitions. [2022-01-10 23:52:47,816 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 23:52:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 32466 states and 53622 transitions. [2022-01-10 23:52:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 23:52:47,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:47,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:47,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 23:52:47,840 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 23:52:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1371094718, now seen corresponding path program 1 times [2022-01-10 23:52:47,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:47,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761913272] [2022-01-10 23:52:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:47,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:48,007 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 23:52:48,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:48,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761913272] [2022-01-10 23:52:48,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761913272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:48,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:48,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:48,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447525604] [2022-01-10 23:52:48,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:48,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:48,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:48,008 INFO L87 Difference]: Start difference. First operand 32466 states and 53622 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 23:52:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:54,858 INFO L93 Difference]: Finished difference Result 94096 states and 153014 transitions. [2022-01-10 23:52:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:54,859 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 23:52:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:54,983 INFO L225 Difference]: With dead ends: 94096 [2022-01-10 23:52:54,984 INFO L226 Difference]: Without dead ends: 75166 [2022-01-10 23:52:55,014 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 23:52:55,014 INFO L933 BasicCegarLoop]: 1405 mSDtfsCounter, 2449 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 5495 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:55,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2449 Valid, 5495 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:55,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75166 states. [2022-01-10 23:53:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75166 to 61866. [2022-01-10 23:53:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61866 states, 61862 states have (on average 1.6493162199734894) internal successors, (102030), 61865 states have internal predecessors, (102030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:53:01,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61866 states to 61866 states and 102030 transitions. [2022-01-10 23:53:01,133 INFO L78 Accepts]: Start accepts. Automaton has 61866 states and 102030 transitions. Word has length 105 [2022-01-10 23:53:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:53:01,133 INFO L470 AbstractCegarLoop]: Abstraction has 61866 states and 102030 transitions. [2022-01-10 23:53:01,133 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2022-01-10 23:53:01,133 INFO L276 IsEmpty]: Start isEmpty. Operand 61866 states and 102030 transitions. [2022-01-10 23:53:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 23:53:01,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:53:01,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:53:01,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 23:53:01,190 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:53:01,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:53:01,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1279595085, now seen corresponding path program 1 times [2022-01-10 23:53:01,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:53:01,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565717797] [2022-01-10 23:53:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:53:01,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:53:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:53:01,268 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 23:53:01,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:53:01,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565717797] [2022-01-10 23:53:01,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565717797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:53:01,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:53:01,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:53:01,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807997445] [2022-01-10 23:53:01,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:53:01,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:53:01,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:53:01,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:53:01,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:53:01,270 INFO L87 Difference]: Start difference. First operand 61866 states and 102030 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)