/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec13_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:02:47,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:02:47,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:02:47,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:02:47,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:02:47,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:02:47,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:02:47,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:02:47,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:02:47,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:02:47,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:02:47,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:02:47,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:02:47,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:02:47,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:02:47,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:02:47,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:02:47,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:02:47,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:02:47,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:02:47,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:02:47,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:02:47,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:02:47,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:02:47,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:02:47,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:02:47,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:02:47,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:02:47,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:02:47,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:02:47,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:02:47,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:02:47,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:02:47,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:02:47,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:02:47,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:02:47,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:02:47,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:02:47,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:02:47,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:02:47,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:02:47,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:02:47,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:02:47,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:02:47,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:02:47,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:02:47,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:02:47,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:02:47,923 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:02:47,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:02:47,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:02:47,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:02:47,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:02:47,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:02:47,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:02:47,925 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:02:47,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:02:47,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:02:47,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:02:47,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:02:47,927 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:02:47,927 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:02:48,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:02:48,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:02:48,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:02:48,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:02:48,127 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:02:48,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product31.cil.c [2022-01-10 12:02:48,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbf8fbd3/eceffef11e0b4b069797b3dcb64fa94b/FLAGab065701e [2022-01-10 12:02:48,659 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:02:48,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product31.cil.c [2022-01-10 12:02:48,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbf8fbd3/eceffef11e0b4b069797b3dcb64fa94b/FLAGab065701e [2022-01-10 12:02:48,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbf8fbd3/eceffef11e0b4b069797b3dcb64fa94b [2022-01-10 12:02:48,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:02:48,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:02:48,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:02:48,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:02:48,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:02:48,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:02:48" (1/1) ... [2022-01-10 12:02:48,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d86b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:48, skipping insertion in model container [2022-01-10 12:02:48,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:02:48" (1/1) ... [2022-01-10 12:02:48,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:02:48,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:02:48,931 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/elevator_spec13_product31.cil.c[1546,1559] [2022-01-10 12:02:49,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:02:49,140 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:02:49,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:02:49,161 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/elevator_spec13_product31.cil.c[1546,1559] [2022-01-10 12:02:49,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:02:49,233 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:02:49,241 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/elevator_spec13_product31.cil.c[1546,1559] [2022-01-10 12:02:49,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:02:49,301 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:02:49,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49 WrapperNode [2022-01-10 12:02:49,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:02:49,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:02:49,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:02:49,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:02:49,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,567 INFO L137 Inliner]: procedures = 97, calls = 348, calls flagged for inlining = 201, calls inlined = 1065, statements flattened = 36562 [2022-01-10 12:02:49,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:02:49,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:02:49,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:02:49,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:02:49,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:49,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:50,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:02:50,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:02:50,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:02:50,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:02:50,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (1/1) ... [2022-01-10 12:02:50,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:02:50,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:02:50,040 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 12:02:50,059 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 12:02:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:02:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:02:50,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:02:50,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:02:50,382 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:02:50,383 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:03:00,294 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:03:00,339 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:03:00,340 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2022-01-10 12:03:00,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:00 BoogieIcfgContainer [2022-01-10 12:03:00,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:03:00,348 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:03:00,348 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:03:00,349 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:03:00,351 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:00" (1/1) ... [2022-01-10 12:03:01,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:03:01 BasicIcfg [2022-01-10 12:03:01,857 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:03:01,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:03:01,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:03:01,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:03:01,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:02:48" (1/4) ... [2022-01-10 12:03:01,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aeb4831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:01, skipping insertion in model container [2022-01-10 12:03:01,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:02:49" (2/4) ... [2022-01-10 12:03:01,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aeb4831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:03:01, skipping insertion in model container [2022-01-10 12:03:01,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:03:00" (3/4) ... [2022-01-10 12:03:01,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aeb4831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:03:01, skipping insertion in model container [2022-01-10 12:03:01,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:03:01" (4/4) ... [2022-01-10 12:03:01,864 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product31.cil.cTransformedIcfg [2022-01-10 12:03:01,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:03:01,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 12:03:01,922 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:03:01,927 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 12:03:01,927 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 12:03:02,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 9737 states, 9726 states have (on average 1.874871478511207) internal successors, (18235), 9736 states have internal predecessors, (18235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 12:03:02,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:02,067 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] [2022-01-10 12:03:02,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:02,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:02,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2045178228, now seen corresponding path program 1 times [2022-01-10 12:03:02,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:02,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589643014] [2022-01-10 12:03:02,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:02,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:03:02,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:02,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589643014] [2022-01-10 12:03:02,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589643014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:02,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:02,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:02,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765285050] [2022-01-10 12:03:02,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:02,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:03:02,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:03:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:02,360 INFO L87 Difference]: Start difference. First operand has 9737 states, 9726 states have (on average 1.874871478511207) internal successors, (18235), 9736 states have internal predecessors, (18235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:02,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:02,886 INFO L93 Difference]: Finished difference Result 23356 states and 43752 transitions. [2022-01-10 12:03:02,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:03:02,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 12:03:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:02,955 INFO L225 Difference]: With dead ends: 23356 [2022-01-10 12:03:02,955 INFO L226 Difference]: Without dead ends: 13618 [2022-01-10 12:03:02,978 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 12:03:02,982 INFO L933 BasicCegarLoop]: 25317 mSDtfsCounter, 18079 mSDsluCounter, 7265 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18079 SdHoareTripleChecker+Valid, 32582 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:02,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18079 Valid, 32582 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13618 states. [2022-01-10 12:03:03,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13618 to 9720. [2022-01-10 12:03:03,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9720 states, 9710 states have (on average 1.8621009268795057) internal successors, (18081), 9719 states have internal predecessors, (18081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:03,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9720 states to 9720 states and 18081 transitions. [2022-01-10 12:03:03,292 INFO L78 Accepts]: Start accepts. Automaton has 9720 states and 18081 transitions. Word has length 64 [2022-01-10 12:03:03,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:03,293 INFO L470 AbstractCegarLoop]: Abstraction has 9720 states and 18081 transitions. [2022-01-10 12:03:03,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:03,293 INFO L276 IsEmpty]: Start isEmpty. Operand 9720 states and 18081 transitions. [2022-01-10 12:03:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 12:03:03,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:03,299 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] [2022-01-10 12:03:03,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:03:03,300 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:03,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash -129191636, now seen corresponding path program 1 times [2022-01-10 12:03:03,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:03,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945398137] [2022-01-10 12:03:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:03,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:03,410 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 12:03:03,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:03,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945398137] [2022-01-10 12:03:03,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945398137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:03,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:03,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:03,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243378224] [2022-01-10 12:03:03,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:03,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:03:03,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:03,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:03:03,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:03,415 INFO L87 Difference]: Start difference. First operand 9720 states and 18081 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:03,976 INFO L93 Difference]: Finished difference Result 23253 states and 43251 transitions. [2022-01-10 12:03:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:03:03,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-10 12:03:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:04,028 INFO L225 Difference]: With dead ends: 23253 [2022-01-10 12:03:04,029 INFO L226 Difference]: Without dead ends: 13582 [2022-01-10 12:03:04,042 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 12:03:04,044 INFO L933 BasicCegarLoop]: 25089 mSDtfsCounter, 18029 mSDsluCounter, 7206 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18029 SdHoareTripleChecker+Valid, 32295 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:04,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18029 Valid, 32295 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:03:04,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13582 states. [2022-01-10 12:03:04,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13582 to 9720. [2022-01-10 12:03:04,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9720 states, 9710 states have (on average 1.8610710607621008) internal successors, (18071), 9719 states have internal predecessors, (18071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:04,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9720 states to 9720 states and 18071 transitions. [2022-01-10 12:03:04,269 INFO L78 Accepts]: Start accepts. Automaton has 9720 states and 18071 transitions. Word has length 66 [2022-01-10 12:03:04,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:04,270 INFO L470 AbstractCegarLoop]: Abstraction has 9720 states and 18071 transitions. [2022-01-10 12:03:04,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:04,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9720 states and 18071 transitions. [2022-01-10 12:03:04,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 12:03:04,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:04,280 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] [2022-01-10 12:03:04,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:03:04,281 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1622694057, now seen corresponding path program 1 times [2022-01-10 12:03:04,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:04,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851973255] [2022-01-10 12:03:04,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:04,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:04,334 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 12:03:04,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:04,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851973255] [2022-01-10 12:03:04,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851973255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:04,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:04,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:04,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080933546] [2022-01-10 12:03:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:04,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:03:04,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:04,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:03:04,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:04,336 INFO L87 Difference]: Start difference. First operand 9720 states and 18071 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:04,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:04,636 INFO L93 Difference]: Finished difference Result 23319 states and 43362 transitions. [2022-01-10 12:03:04,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:03:04,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-01-10 12:03:04,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:04,664 INFO L225 Difference]: With dead ends: 23319 [2022-01-10 12:03:04,664 INFO L226 Difference]: Without dead ends: 13663 [2022-01-10 12:03:04,678 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 12:03:04,680 INFO L933 BasicCegarLoop]: 25389 mSDtfsCounter, 18037 mSDsluCounter, 7334 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18037 SdHoareTripleChecker+Valid, 32723 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:04,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18037 Valid, 32723 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:04,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-01-10 12:03:04,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 9720. [2022-01-10 12:03:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9720 states, 9710 states have (on average 1.8609680741503605) internal successors, (18070), 9719 states have internal predecessors, (18070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9720 states to 9720 states and 18070 transitions. [2022-01-10 12:03:04,891 INFO L78 Accepts]: Start accepts. Automaton has 9720 states and 18070 transitions. Word has length 68 [2022-01-10 12:03:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:04,891 INFO L470 AbstractCegarLoop]: Abstraction has 9720 states and 18070 transitions. [2022-01-10 12:03:04,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9720 states and 18070 transitions. [2022-01-10 12:03:04,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 12:03:04,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:04,895 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] [2022-01-10 12:03:04,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:03:04,896 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:04,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:04,896 INFO L85 PathProgramCache]: Analyzing trace with hash 431311501, now seen corresponding path program 1 times [2022-01-10 12:03:04,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:04,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661718884] [2022-01-10 12:03:04,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:04,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:04,966 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 12:03:04,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:04,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661718884] [2022-01-10 12:03:04,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661718884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:04,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:04,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:04,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57344544] [2022-01-10 12:03:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:04,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:03:04,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:03:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:04,968 INFO L87 Difference]: Start difference. First operand 9720 states and 18070 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:05,430 INFO L93 Difference]: Finished difference Result 23218 states and 43169 transitions. [2022-01-10 12:03:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:03:05,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-10 12:03:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:05,459 INFO L225 Difference]: With dead ends: 23218 [2022-01-10 12:03:05,459 INFO L226 Difference]: Without dead ends: 13598 [2022-01-10 12:03:05,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:05,470 INFO L933 BasicCegarLoop]: 25218 mSDtfsCounter, 17907 mSDsluCounter, 7240 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17907 SdHoareTripleChecker+Valid, 32458 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:05,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17907 Valid, 32458 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13598 states. [2022-01-10 12:03:05,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13598 to 9720. [2022-01-10 12:03:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9720 states, 9710 states have (on average 1.860453141091658) internal successors, (18065), 9719 states have internal predecessors, (18065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:05,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9720 states to 9720 states and 18065 transitions. [2022-01-10 12:03:05,709 INFO L78 Accepts]: Start accepts. Automaton has 9720 states and 18065 transitions. Word has length 69 [2022-01-10 12:03:05,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:05,710 INFO L470 AbstractCegarLoop]: Abstraction has 9720 states and 18065 transitions. [2022-01-10 12:03:05,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:05,710 INFO L276 IsEmpty]: Start isEmpty. Operand 9720 states and 18065 transitions. [2022-01-10 12:03:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 12:03:05,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:05,714 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] [2022-01-10 12:03:05,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:03:05,715 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:05,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:05,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1185978706, now seen corresponding path program 1 times [2022-01-10 12:03:05,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:05,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688487927] [2022-01-10 12:03:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:05,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:05,797 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 12:03:05,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:05,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688487927] [2022-01-10 12:03:05,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688487927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:05,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:05,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:05,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653491467] [2022-01-10 12:03:05,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:05,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:03:05,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:05,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:03:05,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:03:05,800 INFO L87 Difference]: Start difference. First operand 9720 states and 18065 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:06,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:06,326 INFO L93 Difference]: Finished difference Result 24545 states and 45690 transitions. [2022-01-10 12:03:06,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:03:06,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-10 12:03:06,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:06,356 INFO L225 Difference]: With dead ends: 24545 [2022-01-10 12:03:06,356 INFO L226 Difference]: Without dead ends: 16759 [2022-01-10 12:03:06,365 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 12:03:06,366 INFO L933 BasicCegarLoop]: 31181 mSDtfsCounter, 14037 mSDsluCounter, 17090 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14037 SdHoareTripleChecker+Valid, 48271 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:06,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14037 Valid, 48271 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16759 states. [2022-01-10 12:03:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16759 to 9590. [2022-01-10 12:03:06,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9590 states, 9580 states have (on average 1.8585594989561587) internal successors, (17805), 9589 states have internal predecessors, (17805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:06,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9590 states to 9590 states and 17805 transitions. [2022-01-10 12:03:06,586 INFO L78 Accepts]: Start accepts. Automaton has 9590 states and 17805 transitions. Word has length 70 [2022-01-10 12:03:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:06,588 INFO L470 AbstractCegarLoop]: Abstraction has 9590 states and 17805 transitions. [2022-01-10 12:03:06,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:06,588 INFO L276 IsEmpty]: Start isEmpty. Operand 9590 states and 17805 transitions. [2022-01-10 12:03:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-10 12:03:06,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:06,593 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] [2022-01-10 12:03:06,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:03:06,593 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:06,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:06,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1949875952, now seen corresponding path program 1 times [2022-01-10 12:03:06,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:06,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856096209] [2022-01-10 12:03:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:06,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:06,651 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 12:03:06,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:06,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856096209] [2022-01-10 12:03:06,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856096209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:06,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:06,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:03:06,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951739118] [2022-01-10 12:03:06,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:06,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:03:06,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:06,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:03:06,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:06,654 INFO L87 Difference]: Start difference. First operand 9590 states and 17805 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:07,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:07,302 INFO L93 Difference]: Finished difference Result 31521 states and 58724 transitions. [2022-01-10 12:03:07,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:03:07,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-10 12:03:07,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:07,346 INFO L225 Difference]: With dead ends: 31521 [2022-01-10 12:03:07,346 INFO L226 Difference]: Without dead ends: 23878 [2022-01-10 12:03:07,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:07,361 INFO L933 BasicCegarLoop]: 31141 mSDtfsCounter, 41684 mSDsluCounter, 30418 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41684 SdHoareTripleChecker+Valid, 61559 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:07,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41684 Valid, 61559 Invalid, 121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:07,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23878 states. [2022-01-10 12:03:07,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23878 to 9590. [2022-01-10 12:03:07,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9590 states, 9580 states have (on average 1.8575156576200418) internal successors, (17795), 9589 states have internal predecessors, (17795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9590 states to 9590 states and 17795 transitions. [2022-01-10 12:03:07,626 INFO L78 Accepts]: Start accepts. Automaton has 9590 states and 17795 transitions. Word has length 72 [2022-01-10 12:03:07,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:07,626 INFO L470 AbstractCegarLoop]: Abstraction has 9590 states and 17795 transitions. [2022-01-10 12:03:07,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9590 states and 17795 transitions. [2022-01-10 12:03:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 12:03:07,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:07,630 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] [2022-01-10 12:03:07,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:03:07,630 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:07,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:07,630 INFO L85 PathProgramCache]: Analyzing trace with hash 208120373, now seen corresponding path program 1 times [2022-01-10 12:03:07,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:07,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31683944] [2022-01-10 12:03:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:07,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:03:07,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:07,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31683944] [2022-01-10 12:03:07,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31683944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:07,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:07,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:03:07,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240214791] [2022-01-10 12:03:07,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:07,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:03:07,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:07,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:03:07,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:07,701 INFO L87 Difference]: Start difference. First operand 9590 states and 17795 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:08,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:08,272 INFO L93 Difference]: Finished difference Result 32476 states and 60273 transitions. [2022-01-10 12:03:08,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:03:08,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-01-10 12:03:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:08,319 INFO L225 Difference]: With dead ends: 32476 [2022-01-10 12:03:08,319 INFO L226 Difference]: Without dead ends: 22917 [2022-01-10 12:03:08,339 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 12:03:08,341 INFO L933 BasicCegarLoop]: 35356 mSDtfsCounter, 31934 mSDsluCounter, 53026 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31934 SdHoareTripleChecker+Valid, 88382 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:08,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31934 Valid, 88382 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:08,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22917 states. [2022-01-10 12:03:08,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22917 to 9598. [2022-01-10 12:03:08,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9588 states have (on average 1.8568001668752607) internal successors, (17803), 9597 states have internal predecessors, (17803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 17803 transitions. [2022-01-10 12:03:08,830 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 17803 transitions. Word has length 73 [2022-01-10 12:03:08,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:08,830 INFO L470 AbstractCegarLoop]: Abstraction has 9598 states and 17803 transitions. [2022-01-10 12:03:08,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:08,830 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 17803 transitions. [2022-01-10 12:03:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 12:03:08,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:08,843 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] [2022-01-10 12:03:08,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:03:08,843 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash 335355698, now seen corresponding path program 1 times [2022-01-10 12:03:08,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:08,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110630753] [2022-01-10 12:03:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:08,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:08,902 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 12:03:08,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:08,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110630753] [2022-01-10 12:03:08,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110630753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:08,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:08,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:03:08,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395599437] [2022-01-10 12:03:08,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:08,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:03:08,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:08,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:03:08,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:08,904 INFO L87 Difference]: Start difference. First operand 9598 states and 17803 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:09,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:09,198 INFO L93 Difference]: Finished difference Result 22959 states and 42595 transitions. [2022-01-10 12:03:09,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:03:09,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-01-10 12:03:09,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:09,231 INFO L225 Difference]: With dead ends: 22959 [2022-01-10 12:03:09,231 INFO L226 Difference]: Without dead ends: 13374 [2022-01-10 12:03:09,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:09,247 INFO L933 BasicCegarLoop]: 24799 mSDtfsCounter, 14297 mSDsluCounter, 17641 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14297 SdHoareTripleChecker+Valid, 42440 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:09,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14297 Valid, 42440 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13374 states. [2022-01-10 12:03:09,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13374 to 9546. [2022-01-10 12:03:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9546 states, 9536 states have (on average 1.8563338926174497) internal successors, (17702), 9545 states have internal predecessors, (17702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9546 states to 9546 states and 17702 transitions. [2022-01-10 12:03:09,631 INFO L78 Accepts]: Start accepts. Automaton has 9546 states and 17702 transitions. Word has length 74 [2022-01-10 12:03:09,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:09,631 INFO L470 AbstractCegarLoop]: Abstraction has 9546 states and 17702 transitions. [2022-01-10 12:03:09,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 9546 states and 17702 transitions. [2022-01-10 12:03:09,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 12:03:09,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:09,635 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] [2022-01-10 12:03:09,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:03:09,635 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:09,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:09,636 INFO L85 PathProgramCache]: Analyzing trace with hash 901522248, now seen corresponding path program 1 times [2022-01-10 12:03:09,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:09,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51112753] [2022-01-10 12:03:09,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:09,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:09,735 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 12:03:09,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:09,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51112753] [2022-01-10 12:03:09,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51112753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:09,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:09,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:03:09,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782035047] [2022-01-10 12:03:09,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:09,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:03:09,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:09,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:03:09,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:03:09,740 INFO L87 Difference]: Start difference. First operand 9546 states and 17702 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:11,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:11,017 INFO L93 Difference]: Finished difference Result 43615 states and 80945 transitions. [2022-01-10 12:03:11,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:03:11,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-10 12:03:11,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:11,072 INFO L225 Difference]: With dead ends: 43615 [2022-01-10 12:03:11,072 INFO L226 Difference]: Without dead ends: 34089 [2022-01-10 12:03:11,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:03:11,086 INFO L933 BasicCegarLoop]: 56168 mSDtfsCounter, 80993 mSDsluCounter, 56146 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80993 SdHoareTripleChecker+Valid, 112314 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:11,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80993 Valid, 112314 Invalid, 101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:11,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34089 states. [2022-01-10 12:03:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34089 to 9537. [2022-01-10 12:03:11,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9537 states, 9527 states have (on average 1.8557783142647213) internal successors, (17680), 9536 states have internal predecessors, (17680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9537 states to 9537 states and 17680 transitions. [2022-01-10 12:03:11,560 INFO L78 Accepts]: Start accepts. Automaton has 9537 states and 17680 transitions. Word has length 75 [2022-01-10 12:03:11,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:11,561 INFO L470 AbstractCegarLoop]: Abstraction has 9537 states and 17680 transitions. [2022-01-10 12:03:11,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 9537 states and 17680 transitions. [2022-01-10 12:03:11,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 12:03:11,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:11,565 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] [2022-01-10 12:03:11,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:03:11,565 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:11,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:11,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2003590016, now seen corresponding path program 1 times [2022-01-10 12:03:11,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:11,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070670799] [2022-01-10 12:03:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:11,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:11,637 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 12:03:11,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:11,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070670799] [2022-01-10 12:03:11,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070670799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:11,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:11,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:03:11,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932248190] [2022-01-10 12:03:11,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:11,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:03:11,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:03:11,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:03:11,639 INFO L87 Difference]: Start difference. First operand 9537 states and 17680 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:12,653 INFO L93 Difference]: Finished difference Result 30348 states and 56305 transitions. [2022-01-10 12:03:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:03:12,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-01-10 12:03:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:12,685 INFO L225 Difference]: With dead ends: 30348 [2022-01-10 12:03:12,685 INFO L226 Difference]: Without dead ends: 20837 [2022-01-10 12:03:12,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:03:12,694 INFO L933 BasicCegarLoop]: 38582 mSDtfsCounter, 52943 mSDsluCounter, 31462 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52943 SdHoareTripleChecker+Valid, 70044 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:12,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52943 Valid, 70044 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20837 states. [2022-01-10 12:03:13,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20837 to 9539. [2022-01-10 12:03:13,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9539 states, 9529 states have (on average 1.855388813096862) internal successors, (17680), 9538 states have internal predecessors, (17680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9539 states to 9539 states and 17680 transitions. [2022-01-10 12:03:13,036 INFO L78 Accepts]: Start accepts. Automaton has 9539 states and 17680 transitions. Word has length 76 [2022-01-10 12:03:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:13,036 INFO L470 AbstractCegarLoop]: Abstraction has 9539 states and 17680 transitions. [2022-01-10 12:03:13,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 9539 states and 17680 transitions. [2022-01-10 12:03:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 12:03:13,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:13,040 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] [2022-01-10 12:03:13,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:03:13,040 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:13,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:13,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1884819359, now seen corresponding path program 1 times [2022-01-10 12:03:13,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:13,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466230092] [2022-01-10 12:03:13,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:13,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:13,095 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 12:03:13,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:13,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466230092] [2022-01-10 12:03:13,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466230092] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:13,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:13,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:03:13,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022011522] [2022-01-10 12:03:13,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:13,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:03:13,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:13,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:03:13,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:03:13,096 INFO L87 Difference]: Start difference. First operand 9539 states and 17680 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:14,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:14,586 INFO L93 Difference]: Finished difference Result 41628 states and 77247 transitions. [2022-01-10 12:03:14,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:03:14,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-01-10 12:03:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:14,650 INFO L225 Difference]: With dead ends: 41628 [2022-01-10 12:03:14,650 INFO L226 Difference]: Without dead ends: 32115 [2022-01-10 12:03:14,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:03:14,672 INFO L933 BasicCegarLoop]: 59531 mSDtfsCounter, 63391 mSDsluCounter, 62894 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63391 SdHoareTripleChecker+Valid, 122425 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:14,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63391 Valid, 122425 Invalid, 112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:14,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32115 states. [2022-01-10 12:03:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32115 to 9542. [2022-01-10 12:03:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9542 states, 9532 states have (on average 1.8549097775912715) internal successors, (17681), 9541 states have internal predecessors, (17681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9542 states to 9542 states and 17681 transitions. [2022-01-10 12:03:15,284 INFO L78 Accepts]: Start accepts. Automaton has 9542 states and 17681 transitions. Word has length 77 [2022-01-10 12:03:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:15,284 INFO L470 AbstractCegarLoop]: Abstraction has 9542 states and 17681 transitions. [2022-01-10 12:03:15,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 9542 states and 17681 transitions. [2022-01-10 12:03:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 12:03:15,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:15,288 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] [2022-01-10 12:03:15,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:03:15,288 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:15,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:15,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1516006957, now seen corresponding path program 1 times [2022-01-10 12:03:15,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:15,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477039335] [2022-01-10 12:03:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:15,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:15,368 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 12:03:15,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:15,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477039335] [2022-01-10 12:03:15,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477039335] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:15,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:15,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:03:15,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848526336] [2022-01-10 12:03:15,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:15,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:03:15,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:15,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:03:15,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:03:15,370 INFO L87 Difference]: Start difference. First operand 9542 states and 17681 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:17,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:17,909 INFO L93 Difference]: Finished difference Result 52909 states and 98189 transitions. [2022-01-10 12:03:17,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:03:17,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-01-10 12:03:17,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:17,995 INFO L225 Difference]: With dead ends: 52909 [2022-01-10 12:03:17,995 INFO L226 Difference]: Without dead ends: 43393 [2022-01-10 12:03:18,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:03:18,025 INFO L933 BasicCegarLoop]: 80471 mSDtfsCounter, 73841 mSDsluCounter, 115267 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73841 SdHoareTripleChecker+Valid, 195738 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:18,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73841 Valid, 195738 Invalid, 140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:03:18,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43393 states. [2022-01-10 12:03:18,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43393 to 9546. [2022-01-10 12:03:18,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9546 states, 9536 states have (on average 1.85434144295302) internal successors, (17683), 9545 states have internal predecessors, (17683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9546 states to 9546 states and 17683 transitions. [2022-01-10 12:03:18,819 INFO L78 Accepts]: Start accepts. Automaton has 9546 states and 17683 transitions. Word has length 78 [2022-01-10 12:03:18,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:18,819 INFO L470 AbstractCegarLoop]: Abstraction has 9546 states and 17683 transitions. [2022-01-10 12:03:18,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 9546 states and 17683 transitions. [2022-01-10 12:03:18,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 12:03:18,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:18,822 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] [2022-01-10 12:03:18,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:03:18,823 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1977661652, now seen corresponding path program 1 times [2022-01-10 12:03:18,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:18,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609060722] [2022-01-10 12:03:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:18,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:18,875 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 12:03:18,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:18,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609060722] [2022-01-10 12:03:18,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609060722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:18,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:18,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:03:18,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036559586] [2022-01-10 12:03:18,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:18,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:03:18,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:18,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:03:18,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:18,877 INFO L87 Difference]: Start difference. First operand 9546 states and 17683 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:19,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:19,922 INFO L93 Difference]: Finished difference Result 30331 states and 56261 transitions. [2022-01-10 12:03:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:03:19,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-01-10 12:03:19,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:19,958 INFO L225 Difference]: With dead ends: 30331 [2022-01-10 12:03:19,958 INFO L226 Difference]: Without dead ends: 20844 [2022-01-10 12:03:19,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 12:03:19,976 INFO L933 BasicCegarLoop]: 28121 mSDtfsCounter, 45744 mSDsluCounter, 31506 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45744 SdHoareTripleChecker+Valid, 59627 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:19,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45744 Valid, 59627 Invalid, 49 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:19,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20844 states. [2022-01-10 12:03:20,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20844 to 9549. [2022-01-10 12:03:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9549 states, 9539 states have (on average 1.854072753957438) internal successors, (17686), 9548 states have internal predecessors, (17686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:20,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 17686 transitions. [2022-01-10 12:03:20,482 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 17686 transitions. Word has length 79 [2022-01-10 12:03:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:20,482 INFO L470 AbstractCegarLoop]: Abstraction has 9549 states and 17686 transitions. [2022-01-10 12:03:20,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 17686 transitions. [2022-01-10 12:03:20,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 12:03:20,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:20,485 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] [2022-01-10 12:03:20,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:03:20,486 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:20,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:20,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1303677362, now seen corresponding path program 1 times [2022-01-10 12:03:20,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:20,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521001618] [2022-01-10 12:03:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:20,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:03:20,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:20,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521001618] [2022-01-10 12:03:20,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521001618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:20,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:20,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:03:20,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449871090] [2022-01-10 12:03:20,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:20,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:03:20,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:03:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:03:20,547 INFO L87 Difference]: Start difference. First operand 9549 states and 17686 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:21,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:21,175 INFO L93 Difference]: Finished difference Result 22856 states and 42370 transitions. [2022-01-10 12:03:21,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:03:21,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-10 12:03:21,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:21,206 INFO L225 Difference]: With dead ends: 22856 [2022-01-10 12:03:21,206 INFO L226 Difference]: Without dead ends: 13342 [2022-01-10 12:03:21,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:03:21,216 INFO L933 BasicCegarLoop]: 24714 mSDtfsCounter, 35209 mSDsluCounter, 14221 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35209 SdHoareTripleChecker+Valid, 38935 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:21,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35209 Valid, 38935 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13342 states. [2022-01-10 12:03:21,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13342 to 9526. [2022-01-10 12:03:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9526 states, 9516 states have (on average 1.8544556536359815) internal successors, (17647), 9525 states have internal predecessors, (17647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9526 states to 9526 states and 17647 transitions. [2022-01-10 12:03:21,725 INFO L78 Accepts]: Start accepts. Automaton has 9526 states and 17647 transitions. Word has length 80 [2022-01-10 12:03:21,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:21,725 INFO L470 AbstractCegarLoop]: Abstraction has 9526 states and 17647 transitions. [2022-01-10 12:03:21,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:21,725 INFO L276 IsEmpty]: Start isEmpty. Operand 9526 states and 17647 transitions. [2022-01-10 12:03:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 12:03:21,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:21,728 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] [2022-01-10 12:03:21,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:03:21,728 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:21,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:21,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1418139696, now seen corresponding path program 1 times [2022-01-10 12:03:21,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:21,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124147150] [2022-01-10 12:03:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:21,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:21,797 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 12:03:21,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:21,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124147150] [2022-01-10 12:03:21,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124147150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:21,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:21,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:03:21,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121696544] [2022-01-10 12:03:21,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:21,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:03:21,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:21,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:03:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:03:21,799 INFO L87 Difference]: Start difference. First operand 9526 states and 17647 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:25,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:25,755 INFO L93 Difference]: Finished difference Result 26207 states and 48455 transitions. [2022-01-10 12:03:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:03:25,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-10 12:03:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:25,782 INFO L225 Difference]: With dead ends: 26207 [2022-01-10 12:03:25,782 INFO L226 Difference]: Without dead ends: 16750 [2022-01-10 12:03:25,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 12:03:25,795 INFO L933 BasicCegarLoop]: 17757 mSDtfsCounter, 43999 mSDsluCounter, 13068 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43999 SdHoareTripleChecker+Valid, 30825 SdHoareTripleChecker+Invalid, 3753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:25,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43999 Valid, 30825 Invalid, 3753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [718 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-10 12:03:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16750 states. [2022-01-10 12:03:26,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16750 to 9526. [2022-01-10 12:03:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9526 states, 9516 states have (on average 1.8225094577553593) internal successors, (17343), 9525 states have internal predecessors, (17343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9526 states to 9526 states and 17343 transitions. [2022-01-10 12:03:26,351 INFO L78 Accepts]: Start accepts. Automaton has 9526 states and 17343 transitions. Word has length 83 [2022-01-10 12:03:26,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:26,351 INFO L470 AbstractCegarLoop]: Abstraction has 9526 states and 17343 transitions. [2022-01-10 12:03:26,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:26,351 INFO L276 IsEmpty]: Start isEmpty. Operand 9526 states and 17343 transitions. [2022-01-10 12:03:26,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 12:03:26,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:26,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:03:26,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:03:26,354 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:26,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1983297876, now seen corresponding path program 1 times [2022-01-10 12:03:26,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:26,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920939372] [2022-01-10 12:03:26,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:26,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:26,422 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 12:03:26,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:26,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920939372] [2022-01-10 12:03:26,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920939372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:26,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:26,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:03:26,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526577625] [2022-01-10 12:03:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:26,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:03:26,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:03:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:03:26,425 INFO L87 Difference]: Start difference. First operand 9526 states and 17343 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:41,823 INFO L93 Difference]: Finished difference Result 98151 states and 179139 transitions. [2022-01-10 12:03:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 12:03:41,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 12:03:41,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:42,082 INFO L225 Difference]: With dead ends: 98151 [2022-01-10 12:03:42,082 INFO L226 Difference]: Without dead ends: 88721 [2022-01-10 12:03:42,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-10 12:03:42,109 INFO L933 BasicCegarLoop]: 74624 mSDtfsCounter, 123824 mSDsluCounter, 242153 mSDsCounter, 0 mSdLazyCounter, 14598 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123824 SdHoareTripleChecker+Valid, 316777 SdHoareTripleChecker+Invalid, 15321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 14598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:42,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123824 Valid, 316777 Invalid, 15321 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [723 Valid, 14598 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-01-10 12:03:42,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88721 states. [2022-01-10 12:03:43,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88721 to 18891. [2022-01-10 12:03:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18891 states, 18881 states have (on average 1.8234203696838092) internal successors, (34428), 18890 states have internal predecessors, (34428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:43,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18891 states to 18891 states and 34428 transitions. [2022-01-10 12:03:43,547 INFO L78 Accepts]: Start accepts. Automaton has 18891 states and 34428 transitions. Word has length 91 [2022-01-10 12:03:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:43,548 INFO L470 AbstractCegarLoop]: Abstraction has 18891 states and 34428 transitions. [2022-01-10 12:03:43,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 18891 states and 34428 transitions. [2022-01-10 12:03:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 12:03:43,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:43,553 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 12:03:43,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:03:43,553 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:43,553 INFO L85 PathProgramCache]: Analyzing trace with hash 263524763, now seen corresponding path program 1 times [2022-01-10 12:03:43,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:43,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246790921] [2022-01-10 12:03:43,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:43,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:43,631 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 12:03:43,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:43,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246790921] [2022-01-10 12:03:43,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246790921] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:43,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:43,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:03:43,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736656125] [2022-01-10 12:03:43,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:43,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:03:43,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:43,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:03:43,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:03:43,633 INFO L87 Difference]: Start difference. First operand 18891 states and 34428 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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 12:03:45,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:03:45,311 INFO L93 Difference]: Finished difference Result 45152 states and 82321 transitions. [2022-01-10 12:03:45,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:03:45,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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 12:03:45,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:03:45,357 INFO L225 Difference]: With dead ends: 45152 [2022-01-10 12:03:45,358 INFO L226 Difference]: Without dead ends: 26286 [2022-01-10 12:03:45,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:03:45,374 INFO L933 BasicCegarLoop]: 34140 mSDtfsCounter, 88763 mSDsluCounter, 37861 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88763 SdHoareTripleChecker+Valid, 72001 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:03:45,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88763 Valid, 72001 Invalid, 84 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:03:45,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26286 states. [2022-01-10 12:03:46,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26286 to 13201. [2022-01-10 12:03:46,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13201 states, 13191 states have (on average 1.8231369873398529) internal successors, (24049), 13200 states have internal predecessors, (24049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:03:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13201 states to 13201 states and 24049 transitions. [2022-01-10 12:03:46,187 INFO L78 Accepts]: Start accepts. Automaton has 13201 states and 24049 transitions. Word has length 92 [2022-01-10 12:03:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:03:46,187 INFO L470 AbstractCegarLoop]: Abstraction has 13201 states and 24049 transitions. [2022-01-10 12:03:46,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 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 12:03:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 13201 states and 24049 transitions. [2022-01-10 12:03:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 12:03:46,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:03:46,190 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] [2022-01-10 12:03:46,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:03:46,190 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:03:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:03:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1431625685, now seen corresponding path program 1 times [2022-01-10 12:03:46,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:03:46,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849513808] [2022-01-10 12:03:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:03:46,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:03:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:03:46,286 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 12:03:46,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:03:46,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849513808] [2022-01-10 12:03:46,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849513808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:03:46,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:03:46,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:03:46,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810720266] [2022-01-10 12:03:46,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:03:46,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:03:46,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:03:46,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:03:46,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:03:46,287 INFO L87 Difference]: Start difference. First operand 13201 states and 24049 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) 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)