/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_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:06:58,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:06:58,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:06:58,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:06:58,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:06:58,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:06:58,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:06:58,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:06:58,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:06:58,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:06:58,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:06:58,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:06:58,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:06:58,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:06:58,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:06:58,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:06:58,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:06:58,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:06:58,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:06:58,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:06:58,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:06:58,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:06:58,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:06:58,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:06:58,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:06:58,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:06:58,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:06:58,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:06:58,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:06:58,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:06:58,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:06:58,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:06:58,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:06:58,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:06:58,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:06:58,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:06:58,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:06:58,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:06:58,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:06:58,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:06:58,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:06:58,157 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 12:06:58,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:06:58,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:06:58,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:06:58,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:06:58,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:06:58,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:06:58,180 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:06:58,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:06:58,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:06:58,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:06:58,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:06:58,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:06:58,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:06:58,181 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:06:58,181 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:06:58,181 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:06:58,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:06:58,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:06:58,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:06:58,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:06:58,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:06:58,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:06:58,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:06:58,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:06:58,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:06:58,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:06:58,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:06:58,183 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:06:58,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:06:58,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:06:58,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:06:58,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:06:58,185 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:06:58,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:06:58,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:06:58,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:06:58,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:06:58,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:06:58,416 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:06:58,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c [2022-01-10 12:06:58,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decb8c6ba/14705c9e8fa24582aecc33f0ea39ac50/FLAG0687e3d36 [2022-01-10 12:06:59,054 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:06:59,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c [2022-01-10 12:06:59,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decb8c6ba/14705c9e8fa24582aecc33f0ea39ac50/FLAG0687e3d36 [2022-01-10 12:06:59,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/decb8c6ba/14705c9e8fa24582aecc33f0ea39ac50 [2022-01-10 12:06:59,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:06:59,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:06:59,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:06:59,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:06:59,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:06:59,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:59" (1/1) ... [2022-01-10 12:06:59,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d844a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:59, skipping insertion in model container [2022-01-10 12:06:59,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:59" (1/1) ... [2022-01-10 12:06:59,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:06:59,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:06:59,819 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_spec3_product03.cil.c[33356,33369] [2022-01-10 12:06:59,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:06:59,961 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:06:59,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:07:00,042 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_spec3_product03.cil.c[33356,33369] [2022-01-10 12:07:00,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:00,100 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:07:00,166 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_spec3_product03.cil.c[33356,33369] [2022-01-10 12:07:00,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:07:00,252 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:07:00,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00 WrapperNode [2022-01-10 12:07:00,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:07:00,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:07:00,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:07:00,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:07:00,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,559 INFO L137 Inliner]: procedures = 92, calls = 342, calls flagged for inlining = 195, calls inlined = 628, statements flattened = 20683 [2022-01-10 12:07:00,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:07:00,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:07:00,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:07:00,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:07:00,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:00,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:01,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:01,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:07:01,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:07:01,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:07:01,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:07:01,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (1/1) ... [2022-01-10 12:07:01,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:07:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:07:01,165 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 12:07:01,175 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 12:07:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:07:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:07:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:07:01,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:07:01,505 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:07:01,507 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:07:09,783 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:07:09,852 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:07:09,852 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:07:09,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:09 BoogieIcfgContainer [2022-01-10 12:07:09,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:07:09,863 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:07:09,863 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:07:09,864 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:07:09,867 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:09" (1/1) ... [2022-01-10 12:07:11,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:07:11 BasicIcfg [2022-01-10 12:07:11,391 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:07:11,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:07:11,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:07:11,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:07:11,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:06:59" (1/4) ... [2022-01-10 12:07:11,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b136bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:11, skipping insertion in model container [2022-01-10 12:07:11,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:07:00" (2/4) ... [2022-01-10 12:07:11,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b136bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:11, skipping insertion in model container [2022-01-10 12:07:11,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:09" (3/4) ... [2022-01-10 12:07:11,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b136bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:07:11, skipping insertion in model container [2022-01-10 12:07:11,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:07:11" (4/4) ... [2022-01-10 12:07:11,398 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product03.cil.cTransformedIcfg [2022-01-10 12:07:11,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:07:11,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 12:07:11,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:07:11,487 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 12:07:11,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 12:07:11,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 5963 states, 5952 states have (on average 1.8758400537634408) internal successors, (11165), 5962 states have internal predecessors, (11165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:07:11,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:11,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:11,603 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 12:07:11,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:11,608 INFO L85 PathProgramCache]: Analyzing trace with hash -151173626, now seen corresponding path program 1 times [2022-01-10 12:07:11,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:11,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475362116] [2022-01-10 12:07:11,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:11,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:12,163 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 12:07:12,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:12,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475362116] [2022-01-10 12:07:12,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475362116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:12,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:12,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:12,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498275845] [2022-01-10 12:07:12,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:12,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:12,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:12,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:12,276 INFO L87 Difference]: Start difference. First operand has 5963 states, 5952 states have (on average 1.8758400537634408) internal successors, (11165), 5962 states have internal predecessors, (11165), 0 states have call successors, (0), 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 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:14,000 INFO L93 Difference]: Finished difference Result 15120 states and 28308 transitions. [2022-01-10 12:07:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:14,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 12:07:14,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:14,073 INFO L225 Difference]: With dead ends: 15120 [2022-01-10 12:07:14,073 INFO L226 Difference]: Without dead ends: 10076 [2022-01-10 12:07:14,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:14,111 INFO L933 BasicCegarLoop]: 18258 mSDtfsCounter, 9688 mSDsluCounter, 8399 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9688 SdHoareTripleChecker+Valid, 26657 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:14,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9688 Valid, 26657 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [224 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 12:07:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2022-01-10 12:07:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 10020. [2022-01-10 12:07:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10020 states, 10010 states have (on average 1.854045954045954) internal successors, (18559), 10019 states have internal predecessors, (18559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10020 states to 10020 states and 18559 transitions. [2022-01-10 12:07:14,663 INFO L78 Accepts]: Start accepts. Automaton has 10020 states and 18559 transitions. Word has length 52 [2022-01-10 12:07:14,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:14,664 INFO L470 AbstractCegarLoop]: Abstraction has 10020 states and 18559 transitions. [2022-01-10 12:07:14,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:14,665 INFO L276 IsEmpty]: Start isEmpty. Operand 10020 states and 18559 transitions. [2022-01-10 12:07:14,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:07:14,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:14,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:14,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:07:14,668 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 12:07:14,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:14,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1591636709, now seen corresponding path program 1 times [2022-01-10 12:07:14,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:14,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085135878] [2022-01-10 12:07:14,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:14,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:14,783 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 12:07:14,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:14,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085135878] [2022-01-10 12:07:14,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085135878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:14,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:14,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:14,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705882846] [2022-01-10 12:07:14,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:14,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:14,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:14,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:14,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:14,788 INFO L87 Difference]: Start difference. First operand 10020 states and 18559 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:15,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:15,432 INFO L93 Difference]: Finished difference Result 19471 states and 36247 transitions. [2022-01-10 12:07:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:15,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 12:07:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:15,517 INFO L225 Difference]: With dead ends: 19471 [2022-01-10 12:07:15,517 INFO L226 Difference]: Without dead ends: 14720 [2022-01-10 12:07:15,532 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 12:07:15,533 INFO L933 BasicCegarLoop]: 17412 mSDtfsCounter, 10727 mSDsluCounter, 8759 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10727 SdHoareTripleChecker+Valid, 26171 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:15,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10727 Valid, 26171 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:07:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14720 states. [2022-01-10 12:07:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14720 to 14692. [2022-01-10 12:07:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14692 states, 14682 states have (on average 1.8598283612586841) internal successors, (27306), 14691 states have internal predecessors, (27306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14692 states to 14692 states and 27306 transitions. [2022-01-10 12:07:16,040 INFO L78 Accepts]: Start accepts. Automaton has 14692 states and 27306 transitions. Word has length 52 [2022-01-10 12:07:16,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:16,041 INFO L470 AbstractCegarLoop]: Abstraction has 14692 states and 27306 transitions. [2022-01-10 12:07:16,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 14692 states and 27306 transitions. [2022-01-10 12:07:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:07:16,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:16,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:16,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:07:16,044 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 12:07:16,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:16,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1815826906, now seen corresponding path program 1 times [2022-01-10 12:07:16,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:16,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640456267] [2022-01-10 12:07:16,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:16,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:16,143 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 12:07:16,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:16,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640456267] [2022-01-10 12:07:16,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640456267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:16,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:16,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:16,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524362655] [2022-01-10 12:07:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:16,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:16,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:16,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:16,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:16,146 INFO L87 Difference]: Start difference. First operand 14692 states and 27306 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:16,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:16,727 INFO L93 Difference]: Finished difference Result 41769 states and 77722 transitions. [2022-01-10 12:07:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:16,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 12:07:16,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:16,828 INFO L225 Difference]: With dead ends: 41769 [2022-01-10 12:07:16,828 INFO L226 Difference]: Without dead ends: 28165 [2022-01-10 12:07:16,872 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 12:07:16,875 INFO L933 BasicCegarLoop]: 11032 mSDtfsCounter, 9917 mSDsluCounter, 10754 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9917 SdHoareTripleChecker+Valid, 21786 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:16,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9917 Valid, 21786 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:16,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28165 states. [2022-01-10 12:07:17,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28165 to 27832. [2022-01-10 12:07:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27832 states, 27822 states have (on average 1.861764071598016) internal successors, (51798), 27831 states have internal predecessors, (51798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27832 states to 27832 states and 51798 transitions. [2022-01-10 12:07:18,056 INFO L78 Accepts]: Start accepts. Automaton has 27832 states and 51798 transitions. Word has length 52 [2022-01-10 12:07:18,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:18,058 INFO L470 AbstractCegarLoop]: Abstraction has 27832 states and 51798 transitions. [2022-01-10 12:07:18,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand 27832 states and 51798 transitions. [2022-01-10 12:07:18,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:07:18,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:18,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:18,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:07:18,063 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 12:07:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1029456481, now seen corresponding path program 1 times [2022-01-10 12:07:18,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:18,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577436764] [2022-01-10 12:07:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:18,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:18,170 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 12:07:18,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:18,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577436764] [2022-01-10 12:07:18,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577436764] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:18,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:18,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:07:18,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438580484] [2022-01-10 12:07:18,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:18,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:07:18,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:18,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:07:18,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:07:18,174 INFO L87 Difference]: Start difference. First operand 27832 states and 51798 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:20,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:20,040 INFO L93 Difference]: Finished difference Result 111019 states and 206600 transitions. [2022-01-10 12:07:20,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:07:20,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 12:07:20,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:20,382 INFO L225 Difference]: With dead ends: 111019 [2022-01-10 12:07:20,383 INFO L226 Difference]: Without dead ends: 83214 [2022-01-10 12:07:20,458 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 12:07:20,466 INFO L933 BasicCegarLoop]: 21521 mSDtfsCounter, 32134 mSDsluCounter, 32311 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32134 SdHoareTripleChecker+Valid, 53832 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:20,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32134 Valid, 53832 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:07:20,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83214 states. [2022-01-10 12:07:21,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83214 to 27852. [2022-01-10 12:07:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27852 states, 27842 states have (on average 1.8611450326844337) internal successors, (51818), 27851 states have internal predecessors, (51818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:22,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27852 states to 27852 states and 51818 transitions. [2022-01-10 12:07:22,056 INFO L78 Accepts]: Start accepts. Automaton has 27852 states and 51818 transitions. Word has length 52 [2022-01-10 12:07:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:22,056 INFO L470 AbstractCegarLoop]: Abstraction has 27852 states and 51818 transitions. [2022-01-10 12:07:22,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 27852 states and 51818 transitions. [2022-01-10 12:07:22,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 12:07:22,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:22,060 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] [2022-01-10 12:07:22,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:07:22,061 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 12:07:22,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:22,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1356447944, now seen corresponding path program 1 times [2022-01-10 12:07:22,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:22,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948302731] [2022-01-10 12:07:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:22,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:22,166 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 12:07:22,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:22,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948302731] [2022-01-10 12:07:22,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948302731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:22,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:22,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:22,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677628174] [2022-01-10 12:07:22,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:22,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:22,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:22,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:22,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:22,170 INFO L87 Difference]: Start difference. First operand 27852 states and 51818 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:23,072 INFO L93 Difference]: Finished difference Result 55553 states and 103352 transitions. [2022-01-10 12:07:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:07:23,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-10 12:07:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:23,156 INFO L225 Difference]: With dead ends: 55553 [2022-01-10 12:07:23,157 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 12:07:23,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:23,194 INFO L933 BasicCegarLoop]: 10722 mSDtfsCounter, 10714 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10714 SdHoareTripleChecker+Valid, 10730 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:23,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10714 Valid, 10730 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:23,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 12:07:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 12:07:24,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8604634375225584) internal successors, (51546), 27715 states have internal predecessors, (51546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51546 transitions. [2022-01-10 12:07:24,313 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51546 transitions. Word has length 53 [2022-01-10 12:07:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:24,319 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51546 transitions. [2022-01-10 12:07:24,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51546 transitions. [2022-01-10 12:07:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:07:24,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:24,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:07:24,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:07:24,323 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 12:07:24,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash 48262240, now seen corresponding path program 1 times [2022-01-10 12:07:24,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:24,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625081556] [2022-01-10 12:07:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:24,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:24,486 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 12:07:24,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:24,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625081556] [2022-01-10 12:07:24,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625081556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:24,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:24,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:07:24,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154063811] [2022-01-10 12:07:24,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:24,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:07:24,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:24,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:07:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:24,488 INFO L87 Difference]: Start difference. First operand 27716 states and 51546 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:25,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:25,457 INFO L93 Difference]: Finished difference Result 55410 states and 103063 transitions. [2022-01-10 12:07:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:07:25,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-10 12:07:25,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:25,527 INFO L225 Difference]: With dead ends: 55410 [2022-01-10 12:07:25,528 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 12:07:25,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:07:25,565 INFO L933 BasicCegarLoop]: 10708 mSDtfsCounter, 32120 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32120 SdHoareTripleChecker+Valid, 10746 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:25,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32120 Valid, 10746 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:25,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 12:07:26,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 12:07:26,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8603190644625713) internal successors, (51542), 27715 states have internal predecessors, (51542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51542 transitions. [2022-01-10 12:07:26,534 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51542 transitions. Word has length 55 [2022-01-10 12:07:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:26,534 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51542 transitions. [2022-01-10 12:07:26,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51542 transitions. [2022-01-10 12:07:26,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 12:07:26,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:26,537 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] [2022-01-10 12:07:26,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:07:26,537 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 12:07:26,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:26,538 INFO L85 PathProgramCache]: Analyzing trace with hash -447173308, now seen corresponding path program 1 times [2022-01-10 12:07:26,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:26,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735456520] [2022-01-10 12:07:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:26,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:26,611 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 12:07:26,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:26,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735456520] [2022-01-10 12:07:26,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735456520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:26,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:26,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:26,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693424160] [2022-01-10 12:07:26,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:26,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:26,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:26,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:26,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:26,613 INFO L87 Difference]: Start difference. First operand 27716 states and 51542 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:27,493 INFO L93 Difference]: Finished difference Result 55404 states and 103045 transitions. [2022-01-10 12:07:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 12:07:27,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-10 12:07:27,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:27,557 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 12:07:27,558 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 12:07:27,585 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 12:07:27,586 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 32097 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32097 SdHoareTripleChecker+Valid, 10723 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:27,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32097 Valid, 10723 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 12:07:28,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 12:07:28,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8601746914025843) internal successors, (51538), 27715 states have internal predecessors, (51538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:28,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51538 transitions. [2022-01-10 12:07:28,394 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51538 transitions. Word has length 56 [2022-01-10 12:07:28,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:28,395 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51538 transitions. [2022-01-10 12:07:28,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51538 transitions. [2022-01-10 12:07:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 12:07:28,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:28,398 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] [2022-01-10 12:07:28,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:07:28,398 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 12:07:28,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1501624651, now seen corresponding path program 1 times [2022-01-10 12:07:28,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:28,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107121175] [2022-01-10 12:07:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:28,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:28,493 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 12:07:28,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:28,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107121175] [2022-01-10 12:07:28,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107121175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:28,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:28,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:07:28,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292807530] [2022-01-10 12:07:28,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:28,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:07:28,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:28,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:07:28,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:07:28,496 INFO L87 Difference]: Start difference. First operand 27716 states and 51538 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:29,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:29,482 INFO L93 Difference]: Finished difference Result 55404 states and 103038 transitions. [2022-01-10 12:07:29,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:07:29,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 12:07:29,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:29,537 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 12:07:29,537 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 12:07:29,565 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 12:07:29,566 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 32094 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32094 SdHoareTripleChecker+Valid, 10723 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:29,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32094 Valid, 10723 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 12:07:30,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 12:07:30,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8600303183425972) internal successors, (51534), 27715 states have internal predecessors, (51534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51534 transitions. [2022-01-10 12:07:30,289 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51534 transitions. Word has length 57 [2022-01-10 12:07:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:30,289 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51534 transitions. [2022-01-10 12:07:30,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51534 transitions. [2022-01-10 12:07:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:07:30,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:30,292 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] [2022-01-10 12:07:30,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:07:30,292 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 12:07:30,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:30,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1536434743, now seen corresponding path program 1 times [2022-01-10 12:07:30,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:30,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931893810] [2022-01-10 12:07:30,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:30,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:30,385 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 12:07:30,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:30,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931893810] [2022-01-10 12:07:30,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931893810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:30,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:30,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:07:30,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501173862] [2022-01-10 12:07:30,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:30,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:07:30,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:30,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:07:30,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:07:30,388 INFO L87 Difference]: Start difference. First operand 27716 states and 51534 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:31,384 INFO L93 Difference]: Finished difference Result 55404 states and 103031 transitions. [2022-01-10 12:07:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 12:07:31,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-10 12:07:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:31,434 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 12:07:31,434 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 12:07:31,459 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 12:07:31,460 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 42781 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42781 SdHoareTripleChecker+Valid, 10723 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:31,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42781 Valid, 10723 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 12:07:32,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 12:07:32,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8598859452826102) internal successors, (51530), 27715 states have internal predecessors, (51530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51530 transitions. [2022-01-10 12:07:32,218 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51530 transitions. Word has length 58 [2022-01-10 12:07:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:32,219 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51530 transitions. [2022-01-10 12:07:32,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51530 transitions. [2022-01-10 12:07:32,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 12:07:32,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:32,221 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] [2022-01-10 12:07:32,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:07:32,221 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 12:07:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1927804194, now seen corresponding path program 1 times [2022-01-10 12:07:32,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:32,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738576036] [2022-01-10 12:07:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:32,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:32,332 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 12:07:32,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:32,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738576036] [2022-01-10 12:07:32,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738576036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:32,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:32,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:07:32,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247078219] [2022-01-10 12:07:32,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:32,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 12:07:32,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:32,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 12:07:32,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:32,335 INFO L87 Difference]: Start difference. First operand 27716 states and 51530 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:33,281 INFO L93 Difference]: Finished difference Result 55404 states and 103024 transitions. [2022-01-10 12:07:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 12:07:33,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 12:07:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:33,328 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 12:07:33,328 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 12:07:33,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:07:33,348 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 21388 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21388 SdHoareTripleChecker+Valid, 10743 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:33,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21388 Valid, 10743 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:07:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 12:07:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 12:07:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8597415722226232) internal successors, (51526), 27715 states have internal predecessors, (51526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:34,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51526 transitions. [2022-01-10 12:07:34,183 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51526 transitions. Word has length 59 [2022-01-10 12:07:34,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:34,183 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51526 transitions. [2022-01-10 12:07:34,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:34,184 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51526 transitions. [2022-01-10 12:07:34,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 12:07:34,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:34,186 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] [2022-01-10 12:07:34,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:07:34,186 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 12:07:34,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:34,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2101553962, now seen corresponding path program 1 times [2022-01-10 12:07:34,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:34,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138949475] [2022-01-10 12:07:34,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:34,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:34,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:07:34,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:34,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138949475] [2022-01-10 12:07:34,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138949475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:34,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:34,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:34,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031046771] [2022-01-10 12:07:34,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:34,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:34,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:34,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:34,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:34,267 INFO L87 Difference]: Start difference. First operand 27716 states and 51526 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:39,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:39,705 INFO L93 Difference]: Finished difference Result 180936 states and 336260 transitions. [2022-01-10 12:07:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:07:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-10 12:07:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:40,009 INFO L225 Difference]: With dead ends: 180936 [2022-01-10 12:07:40,010 INFO L226 Difference]: Without dead ends: 154177 [2022-01-10 12:07:40,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:07:40,226 INFO L933 BasicCegarLoop]: 21815 mSDtfsCounter, 72296 mSDsluCounter, 58171 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72296 SdHoareTripleChecker+Valid, 79986 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:40,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72296 Valid, 79986 Invalid, 1609 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-10 12:07:40,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154177 states. [2022-01-10 12:07:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154177 to 52172. [2022-01-10 12:07:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52172 states, 52162 states have (on average 1.8596487864729112) internal successors, (97003), 52171 states have internal predecessors, (97003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52172 states to 52172 states and 97003 transitions. [2022-01-10 12:07:42,518 INFO L78 Accepts]: Start accepts. Automaton has 52172 states and 97003 transitions. Word has length 60 [2022-01-10 12:07:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:42,518 INFO L470 AbstractCegarLoop]: Abstraction has 52172 states and 97003 transitions. [2022-01-10 12:07:42,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 52172 states and 97003 transitions. [2022-01-10 12:07:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 12:07:42,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:42,520 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] [2022-01-10 12:07:42,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:07:42,521 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 12:07:42,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:42,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2116968493, now seen corresponding path program 1 times [2022-01-10 12:07:42,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:42,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912185312] [2022-01-10 12:07:42,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:42,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:42,598 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 12:07:42,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:42,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912185312] [2022-01-10 12:07:42,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912185312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:42,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:42,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:07:42,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035715484] [2022-01-10 12:07:42,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:42,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:07:42,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:42,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:07:42,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:07:42,601 INFO L87 Difference]: Start difference. First operand 52172 states and 97003 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:44,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:07:44,746 INFO L93 Difference]: Finished difference Result 104602 states and 194203 transitions. [2022-01-10 12:07:44,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 12:07:44,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 12:07:44,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:07:44,832 INFO L225 Difference]: With dead ends: 104602 [2022-01-10 12:07:44,832 INFO L226 Difference]: Without dead ends: 52506 [2022-01-10 12:07:44,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:07:44,872 INFO L933 BasicCegarLoop]: 17123 mSDtfsCounter, 31139 mSDsluCounter, 27066 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31139 SdHoareTripleChecker+Valid, 44189 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:07:44,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31139 Valid, 44189 Invalid, 450 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [89 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:07:44,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52506 states. [2022-01-10 12:07:46,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52506 to 51327. [2022-01-10 12:07:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51327 states, 51317 states have (on average 1.8639826957928172) internal successors, (95654), 51326 states have internal predecessors, (95654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:46,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51327 states to 51327 states and 95654 transitions. [2022-01-10 12:07:46,706 INFO L78 Accepts]: Start accepts. Automaton has 51327 states and 95654 transitions. Word has length 61 [2022-01-10 12:07:46,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:07:46,707 INFO L470 AbstractCegarLoop]: Abstraction has 51327 states and 95654 transitions. [2022-01-10 12:07:46,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:07:46,707 INFO L276 IsEmpty]: Start isEmpty. Operand 51327 states and 95654 transitions. [2022-01-10 12:07:46,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 12:07:46,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:07:46,708 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] [2022-01-10 12:07:46,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:07:46,708 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 12:07:46,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:07:46,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1056694875, now seen corresponding path program 1 times [2022-01-10 12:07:46,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:07:46,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695110426] [2022-01-10 12:07:46,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:07:46,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:07:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:07:46,764 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 12:07:46,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:07:46,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695110426] [2022-01-10 12:07:46,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695110426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:07:46,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:07:46,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:07:46,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847307294] [2022-01-10 12:07:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:07:46,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:07:46,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:07:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:07:46,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:07:46,766 INFO L87 Difference]: Start difference. First operand 51327 states and 95654 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)