/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:52:23,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:52:23,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:52:24,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:52:24,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:52:24,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:52:24,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:52:24,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:52:24,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:52:24,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:52:24,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:52:24,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:52:24,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:52:24,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:52:24,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:52:24,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:52:24,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:52:24,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:52:24,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:52:24,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:52:24,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:52:24,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:52:24,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:52:24,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:52:24,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:52:24,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:52:24,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:52:24,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:52:24,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:52:24,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:52:24,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:52:24,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:52:24,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:52:24,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:52:24,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:52:24,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:52:24,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:52:24,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:52:24,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:52:24,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:52:24,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:52:24,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:52:24,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:52:24,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:52:24,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:52:24,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:52:24,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:52:24,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:52:24,083 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:52:24,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:52:24,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:52:24,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:52:24,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:52:24,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:52:24,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:52:24,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:52:24,084 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:52:24,085 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:52:24,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:52:24,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:52:24,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:52:24,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:52:24,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:52:24,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:52:24,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:52:24,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:52:24,087 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:52:24,087 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:52:24,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:52:24,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:52:24,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:52:24,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:52:24,336 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:52:24,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2022-01-10 17:52:24,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8170dbda6/d8269702b2dc407a89b96f9d24fba3d0/FLAGc1d220c8d [2022-01-10 17:52:24,852 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:52:24,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2022-01-10 17:52:24,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8170dbda6/d8269702b2dc407a89b96f9d24fba3d0/FLAGc1d220c8d [2022-01-10 17:52:25,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8170dbda6/d8269702b2dc407a89b96f9d24fba3d0 [2022-01-10 17:52:25,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:52:25,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:52:25,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:52:25,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:52:25,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:52:25,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:25,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1b1a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25, skipping insertion in model container [2022-01-10 17:52:25,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:25,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:52:25,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:52:25,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2022-01-10 17:52:25,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:52:25,784 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:52:25,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:52:25,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2022-01-10 17:52:25,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:52:25,883 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:52:25,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2022-01-10 17:52:25,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:52:25,960 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:52:25,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25 WrapperNode [2022-01-10 17:52:25,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:52:25,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:52:25,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:52:25,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:52:25,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:26,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:26,634 INFO L137 Inliner]: procedures = 98, calls = 352, calls flagged for inlining = 204, calls inlined = 1935, statements flattened = 67284 [2022-01-10 17:52:26,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:52:26,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:52:26,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:52:26,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:52:26,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:26,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:26,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:26,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:27,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:27,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:27,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:27,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:52:27,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:52:27,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:52:27,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:52:27,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (1/1) ... [2022-01-10 17:52:27,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:52:27,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:52:27,717 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 17:52:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:52:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:52:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:52:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:52:27,735 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 17:52:27,935 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:52:27,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:52:46,498 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:52:46,583 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:52:46,584 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2022-01-10 17:52:46,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:52:46 BoogieIcfgContainer [2022-01-10 17:52:46,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:52:46,601 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:52:46,601 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:52:46,602 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:52:46,604 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:52:46" (1/1) ... [2022-01-10 17:52:49,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:52:49 BasicIcfg [2022-01-10 17:52:49,378 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:52:49,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:52:49,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:52:49,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:52:49,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:52:25" (1/4) ... [2022-01-10 17:52:49,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219fbab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:52:49, skipping insertion in model container [2022-01-10 17:52:49,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:52:25" (2/4) ... [2022-01-10 17:52:49,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219fbab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:52:49, skipping insertion in model container [2022-01-10 17:52:49,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:52:46" (3/4) ... [2022-01-10 17:52:49,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219fbab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:52:49, skipping insertion in model container [2022-01-10 17:52:49,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:52:49" (4/4) ... [2022-01-10 17:52:49,384 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.cTransformedIcfg [2022-01-10 17:52:49,387 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:52:49,387 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 17:52:49,457 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:52:49,462 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 17:52:49,462 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 17:52:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 17952 states, 17941 states have (on average 1.8781004403322) internal successors, (33695), 17951 states have internal predecessors, (33695), 0 states have call successors, (0), 0 states 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 17:52:49,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 17:52:49,762 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:52:49,762 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] [2022-01-10 17:52:49,763 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 17:52:49,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:52:49,773 INFO L85 PathProgramCache]: Analyzing trace with hash 379297150, now seen corresponding path program 1 times [2022-01-10 17:52:49,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:52:49,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197354144] [2022-01-10 17:52:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:52:49,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:52:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:52:50,019 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 17:52:50,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:52:50,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197354144] [2022-01-10 17:52:50,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197354144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:52:50,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:52:50,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:52:50,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056173844] [2022-01-10 17:52:50,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:52:50,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:52:50,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:52:50,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:52:50,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:52:50,106 INFO L87 Difference]: Start difference. First operand has 17952 states, 17941 states have (on average 1.8781004403322) internal successors, (33695), 17951 states have internal predecessors, (33695), 0 states have call successors, (0), 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 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 17:52:50,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:52:50,856 INFO L93 Difference]: Finished difference Result 43072 states and 80856 transitions. [2022-01-10 17:52:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:52:50,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-10 17:52:50,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:52:51,185 INFO L225 Difference]: With dead ends: 43072 [2022-01-10 17:52:51,185 INFO L226 Difference]: Without dead ends: 25119 [2022-01-10 17:52:51,210 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 17:52:51,212 INFO L933 BasicCegarLoop]: 46961 mSDtfsCounter, 33539 mSDsluCounter, 13449 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33539 SdHoareTripleChecker+Valid, 60410 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:52:51,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33539 Valid, 60410 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:52:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25119 states. [2022-01-10 17:52:51,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25119 to 17935. [2022-01-10 17:52:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8711854951185496) internal successors, (33541), 17934 states have internal predecessors, (33541), 0 states have call successors, (0), 0 states 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 17:52:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33541 transitions. [2022-01-10 17:52:51,812 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33541 transitions. Word has length 46 [2022-01-10 17:52:51,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:52:51,812 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33541 transitions. [2022-01-10 17:52:51,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 17:52:51,813 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33541 transitions. [2022-01-10 17:52:51,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 17:52:51,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:52:51,815 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] [2022-01-10 17:52:51,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:52:51,816 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 17:52:51,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:52:51,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1495830250, now seen corresponding path program 1 times [2022-01-10 17:52:51,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:52:51,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200100094] [2022-01-10 17:52:51,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:52:51,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:52:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:52:51,896 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 17:52:51,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:52:51,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200100094] [2022-01-10 17:52:51,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200100094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:52:51,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:52:51,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:52:51,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130816278] [2022-01-10 17:52:51,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:52:51,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:52:51,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:52:51,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:52:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:52:51,903 INFO L87 Difference]: Start difference. First operand 17935 states and 33541 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 17:52:52,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:52:52,611 INFO L93 Difference]: Finished difference Result 42969 states and 80355 transitions. [2022-01-10 17:52:52,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:52:52,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-01-10 17:52:52,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:52:52,790 INFO L225 Difference]: With dead ends: 42969 [2022-01-10 17:52:52,790 INFO L226 Difference]: Without dead ends: 25083 [2022-01-10 17:52:52,815 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 17:52:52,816 INFO L933 BasicCegarLoop]: 46733 mSDtfsCounter, 33489 mSDsluCounter, 13390 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33489 SdHoareTripleChecker+Valid, 60123 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:52:52,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33489 Valid, 60123 Invalid, 181 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:52:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25083 states. [2022-01-10 17:52:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25083 to 17935. [2022-01-10 17:52:53,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8706276150627614) internal successors, (33531), 17934 states have internal predecessors, (33531), 0 states have call successors, (0), 0 states 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 17:52:53,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33531 transitions. [2022-01-10 17:52:53,221 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33531 transitions. Word has length 48 [2022-01-10 17:52:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:52:53,222 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33531 transitions. [2022-01-10 17:52:53,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 17:52:53,225 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33531 transitions. [2022-01-10 17:52:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 17:52:53,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:52:53,234 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] [2022-01-10 17:52:53,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:52:53,234 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 17:52:53,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:52:53,234 INFO L85 PathProgramCache]: Analyzing trace with hash -61227071, now seen corresponding path program 1 times [2022-01-10 17:52:53,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:52:53,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80538977] [2022-01-10 17:52:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:52:53,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:52:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:52:53,312 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 17:52:53,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:52:53,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80538977] [2022-01-10 17:52:53,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80538977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:52:53,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:52:53,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:52:53,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100877109] [2022-01-10 17:52:53,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:52:53,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:52:53,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:52:53,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:52:53,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:52:53,314 INFO L87 Difference]: Start difference. First operand 17935 states and 33531 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states 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 17:52:53,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:52:53,930 INFO L93 Difference]: Finished difference Result 43035 states and 80466 transitions. [2022-01-10 17:52:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:52:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-10 17:52:53,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:52:53,991 INFO L225 Difference]: With dead ends: 43035 [2022-01-10 17:52:53,991 INFO L226 Difference]: Without dead ends: 25164 [2022-01-10 17:52:54,018 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 17:52:54,022 INFO L933 BasicCegarLoop]: 47033 mSDtfsCounter, 33497 mSDsluCounter, 13518 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33497 SdHoareTripleChecker+Valid, 60551 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:52:54,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33497 Valid, 60551 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:52:54,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25164 states. [2022-01-10 17:52:54,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25164 to 17935. [2022-01-10 17:52:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8705718270571827) internal successors, (33530), 17934 states have internal predecessors, (33530), 0 states have call successors, (0), 0 states 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 17:52:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33530 transitions. [2022-01-10 17:52:54,497 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33530 transitions. Word has length 50 [2022-01-10 17:52:54,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:52:54,498 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33530 transitions. [2022-01-10 17:52:54,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states 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 17:52:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33530 transitions. [2022-01-10 17:52:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 17:52:54,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:52:54,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:52:54,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:52:54,501 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 17:52:54,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:52:54,501 INFO L85 PathProgramCache]: Analyzing trace with hash -861021803, now seen corresponding path program 1 times [2022-01-10 17:52:54,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:52:54,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876644435] [2022-01-10 17:52:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:52:54,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:52:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:52:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:52:54,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:52:54,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876644435] [2022-01-10 17:52:54,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876644435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:52:54,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:52:54,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:52:54,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003761574] [2022-01-10 17:52:54,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:52:54,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:52:54,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:52:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:52:54,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:52:54,562 INFO L87 Difference]: Start difference. First operand 17935 states and 33530 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:52:55,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:52:55,141 INFO L93 Difference]: Finished difference Result 42934 states and 80273 transitions. [2022-01-10 17:52:55,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:52:55,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 17:52:55,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:52:55,199 INFO L225 Difference]: With dead ends: 42934 [2022-01-10 17:52:55,199 INFO L226 Difference]: Without dead ends: 25099 [2022-01-10 17:52:55,328 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 17:52:55,330 INFO L933 BasicCegarLoop]: 46862 mSDtfsCounter, 33367 mSDsluCounter, 13424 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33367 SdHoareTripleChecker+Valid, 60286 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:52:55,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33367 Valid, 60286 Invalid, 171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:52:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25099 states. [2022-01-10 17:52:55,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25099 to 17935. [2022-01-10 17:52:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8702928870292888) internal successors, (33525), 17934 states have internal predecessors, (33525), 0 states have call successors, (0), 0 states 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 17:52:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33525 transitions. [2022-01-10 17:52:55,669 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33525 transitions. Word has length 51 [2022-01-10 17:52:55,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:52:55,670 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33525 transitions. [2022-01-10 17:52:55,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:52:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33525 transitions. [2022-01-10 17:52:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 17:52:55,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:52:55,672 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 17:52:55,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:52:55,673 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 17:52:55,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:52:55,674 INFO L85 PathProgramCache]: Analyzing trace with hash -955180392, now seen corresponding path program 1 times [2022-01-10 17:52:55,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:52:55,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028606585] [2022-01-10 17:52:55,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:52:55,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:52:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:52:55,752 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 17:52:55,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:52:55,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028606585] [2022-01-10 17:52:55,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028606585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:52:55,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:52:55,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:52:55,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311035568] [2022-01-10 17:52:55,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:52:55,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:52:55,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:52:55,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:52:55,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:52:55,754 INFO L87 Difference]: Start difference. First operand 17935 states and 33525 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 17:52:56,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:52:56,584 INFO L93 Difference]: Finished difference Result 45904 states and 85886 transitions. [2022-01-10 17:52:56,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:52:56,584 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 17:52:56,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:52:56,654 INFO L225 Difference]: With dead ends: 45904 [2022-01-10 17:52:56,654 INFO L226 Difference]: Without dead ends: 31546 [2022-01-10 17:52:56,672 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 17:52:56,673 INFO L933 BasicCegarLoop]: 59009 mSDtfsCounter, 26405 mSDsluCounter, 32550 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26405 SdHoareTripleChecker+Valid, 91559 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:52:56,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26405 Valid, 91559 Invalid, 102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:52:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31546 states. [2022-01-10 17:52:57,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31546 to 17805. [2022-01-10 17:52:57,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17805 states, 17795 states have (on average 1.8693453217195841) internal successors, (33265), 17804 states have internal predecessors, (33265), 0 states have call successors, (0), 0 states 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 17:52:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17805 states to 17805 states and 33265 transitions. [2022-01-10 17:52:57,152 INFO L78 Accepts]: Start accepts. Automaton has 17805 states and 33265 transitions. Word has length 52 [2022-01-10 17:52:57,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:52:57,153 INFO L470 AbstractCegarLoop]: Abstraction has 17805 states and 33265 transitions. [2022-01-10 17:52:57,153 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 17:52:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17805 states and 33265 transitions. [2022-01-10 17:52:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 17:52:57,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:52:57,156 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] [2022-01-10 17:52:57,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:52:57,156 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 17:52:57,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:52:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash -593033535, now seen corresponding path program 1 times [2022-01-10 17:52:57,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:52:57,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782904019] [2022-01-10 17:52:57,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:52:57,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:52:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:52:57,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:52:57,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:52:57,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782904019] [2022-01-10 17:52:57,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782904019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:52:57,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:52:57,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:52:57,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411314012] [2022-01-10 17:52:57,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:52:57,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:52:57,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:52:57,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:52:57,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:52:57,240 INFO L87 Difference]: Start difference. First operand 17805 states and 33265 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 17:52:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:52:58,547 INFO L93 Difference]: Finished difference Result 59452 states and 111288 transitions. [2022-01-10 17:52:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:52:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-10 17:52:58,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:52:58,674 INFO L225 Difference]: With dead ends: 59452 [2022-01-10 17:52:58,674 INFO L226 Difference]: Without dead ends: 45237 [2022-01-10 17:52:58,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:52:58,702 INFO L933 BasicCegarLoop]: 65349 mSDtfsCounter, 72410 mSDsluCounter, 58246 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72410 SdHoareTripleChecker+Valid, 123595 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:52:58,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72410 Valid, 123595 Invalid, 122 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [47 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:52:58,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45237 states. [2022-01-10 17:52:59,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45237 to 17805. [2022-01-10 17:52:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17805 states, 17795 states have (on average 1.868783366114077) internal successors, (33255), 17804 states have internal predecessors, (33255), 0 states have call successors, (0), 0 states 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 17:52:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17805 states to 17805 states and 33255 transitions. [2022-01-10 17:52:59,367 INFO L78 Accepts]: Start accepts. Automaton has 17805 states and 33255 transitions. Word has length 54 [2022-01-10 17:52:59,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:52:59,367 INFO L470 AbstractCegarLoop]: Abstraction has 17805 states and 33255 transitions. [2022-01-10 17:52:59,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 17:52:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand 17805 states and 33255 transitions. [2022-01-10 17:52:59,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 17:52:59,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:52:59,369 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 17:52:59,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:52:59,370 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 17:52:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:52:59,370 INFO L85 PathProgramCache]: Analyzing trace with hash 874354665, now seen corresponding path program 1 times [2022-01-10 17:52:59,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:52:59,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938337468] [2022-01-10 17:52:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:52:59,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:52:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:52:59,437 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 17:52:59,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:52:59,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938337468] [2022-01-10 17:52:59,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938337468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:52:59,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:52:59,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:52:59,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18157371] [2022-01-10 17:52:59,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:52:59,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:52:59,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:52:59,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:52:59,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:52:59,439 INFO L87 Difference]: Start difference. First operand 17805 states and 33255 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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 17:53:00,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:53:00,505 INFO L93 Difference]: Finished difference Result 60407 states and 112837 transitions. [2022-01-10 17:53:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:53:00,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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 17:53:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:53:00,576 INFO L225 Difference]: With dead ends: 60407 [2022-01-10 17:53:00,577 INFO L226 Difference]: Without dead ends: 42633 [2022-01-10 17:53:00,600 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 17:53:00,600 INFO L933 BasicCegarLoop]: 66276 mSDtfsCounter, 59762 mSDsluCounter, 99406 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59762 SdHoareTripleChecker+Valid, 165682 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:53:00,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59762 Valid, 165682 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:53:00,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42633 states. [2022-01-10 17:53:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42633 to 17813. [2022-01-10 17:53:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17813 states, 17803 states have (on average 1.8683929674773914) internal successors, (33263), 17812 states have internal predecessors, (33263), 0 states have call successors, (0), 0 states 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 17:53:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17813 states to 17813 states and 33263 transitions. [2022-01-10 17:53:01,242 INFO L78 Accepts]: Start accepts. Automaton has 17813 states and 33263 transitions. Word has length 55 [2022-01-10 17:53:01,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:53:01,242 INFO L470 AbstractCegarLoop]: Abstraction has 17813 states and 33263 transitions. [2022-01-10 17:53:01,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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 17:53:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 17813 states and 33263 transitions. [2022-01-10 17:53:01,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 17:53:01,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:53:01,245 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 17:53:01,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:53:01,245 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 17:53:01,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:53:01,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1771319352, now seen corresponding path program 1 times [2022-01-10 17:53:01,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:53:01,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491621466] [2022-01-10 17:53:01,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:53:01,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:53:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:53:01,307 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 17:53:01,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:53:01,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491621466] [2022-01-10 17:53:01,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491621466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:53:01,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:53:01,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:53:01,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243379217] [2022-01-10 17:53:01,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:53:01,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:53:01,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:53:01,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:53:01,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:53:01,309 INFO L87 Difference]: Start difference. First operand 17813 states and 33263 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 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 17:53:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:53:01,956 INFO L93 Difference]: Finished difference Result 42675 states and 79699 transitions. [2022-01-10 17:53:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:53:01,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 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 17:53:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:53:01,999 INFO L225 Difference]: With dead ends: 42675 [2022-01-10 17:53:01,999 INFO L226 Difference]: Without dead ends: 24875 [2022-01-10 17:53:02,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:53:02,019 INFO L933 BasicCegarLoop]: 46443 mSDtfsCounter, 26665 mSDsluCounter, 33101 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26665 SdHoareTripleChecker+Valid, 79544 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:53:02,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26665 Valid, 79544 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:53:02,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24875 states. [2022-01-10 17:53:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24875 to 17761. [2022-01-10 17:53:02,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17761 states, 17751 states have (on average 1.8681764407639005) internal successors, (33162), 17760 states have internal predecessors, (33162), 0 states have call successors, (0), 0 states 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 17:53:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17761 states to 17761 states and 33162 transitions. [2022-01-10 17:53:02,573 INFO L78 Accepts]: Start accepts. Automaton has 17761 states and 33162 transitions. Word has length 56 [2022-01-10 17:53:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:53:02,574 INFO L470 AbstractCegarLoop]: Abstraction has 17761 states and 33162 transitions. [2022-01-10 17:53:02,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 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 17:53:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 17761 states and 33162 transitions. [2022-01-10 17:53:02,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 17:53:02,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:53:02,576 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 17:53:02,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:53:02,576 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 17:53:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:53:02,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1106310140, now seen corresponding path program 1 times [2022-01-10 17:53:02,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:53:02,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055029491] [2022-01-10 17:53:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:53:02,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:53:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:53:02,653 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 17:53:02,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:53:02,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055029491] [2022-01-10 17:53:02,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055029491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:53:02,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:53:02,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 17:53:02,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082347958] [2022-01-10 17:53:02,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:53:02,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 17:53:02,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:53:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 17:53:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:53:02,654 INFO L87 Difference]: Start difference. First operand 17761 states and 33162 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 17:53:05,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:53:05,051 INFO L93 Difference]: Finished difference Result 81404 states and 152061 transitions. [2022-01-10 17:53:05,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 17:53:05,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 17:53:05,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:53:05,167 INFO L225 Difference]: With dead ends: 81404 [2022-01-10 17:53:05,167 INFO L226 Difference]: Without dead ends: 63663 [2022-01-10 17:53:05,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 17:53:05,192 INFO L933 BasicCegarLoop]: 105640 mSDtfsCounter, 138780 mSDsluCounter, 118892 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138780 SdHoareTripleChecker+Valid, 224532 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:53:05,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138780 Valid, 224532 Invalid, 111 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [20 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:53:05,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63663 states. [2022-01-10 17:53:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63663 to 17752. [2022-01-10 17:53:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17742 states have (on average 1.86788411678503) internal successors, (33140), 17751 states have internal predecessors, (33140), 0 states have call successors, (0), 0 states 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 17:53:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 33140 transitions. [2022-01-10 17:53:05,936 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 33140 transitions. Word has length 57 [2022-01-10 17:53:05,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:53:05,938 INFO L470 AbstractCegarLoop]: Abstraction has 17752 states and 33140 transitions. [2022-01-10 17:53:05,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 17:53:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 33140 transitions. [2022-01-10 17:53:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 17:53:05,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:53:05,941 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 17:53:05,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:53:05,941 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 17:53:05,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:53:05,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1093369942, now seen corresponding path program 1 times [2022-01-10 17:53:05,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:53:05,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236036135] [2022-01-10 17:53:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:53:05,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:53:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:53:05,992 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 17:53:05,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:53:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236036135] [2022-01-10 17:53:05,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236036135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:53:05,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:53:05,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:53:05,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031001188] [2022-01-10 17:53:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:53:05,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:53:05,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:53:05,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:53:05,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:53:05,993 INFO L87 Difference]: Start difference. First operand 17752 states and 33140 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 17:53:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:53:07,736 INFO L93 Difference]: Finished difference Result 56636 states and 105777 transitions. [2022-01-10 17:53:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 17:53:07,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 17:53:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:53:07,801 INFO L225 Difference]: With dead ends: 56636 [2022-01-10 17:53:07,801 INFO L226 Difference]: Without dead ends: 38910 [2022-01-10 17:53:07,826 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 17:53:07,826 INFO L933 BasicCegarLoop]: 72594 mSDtfsCounter, 85971 mSDsluCounter, 59299 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85971 SdHoareTripleChecker+Valid, 131893 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:53:07,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85971 Valid, 131893 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:53:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38910 states. [2022-01-10 17:53:08,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38910 to 17754. [2022-01-10 17:53:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17754 states, 17744 states have (on average 1.867673579801623) internal successors, (33140), 17753 states have internal predecessors, (33140), 0 states have call successors, (0), 0 states 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 17:53:08,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17754 states to 17754 states and 33140 transitions. [2022-01-10 17:53:08,580 INFO L78 Accepts]: Start accepts. Automaton has 17754 states and 33140 transitions. Word has length 58 [2022-01-10 17:53:08,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:53:08,580 INFO L470 AbstractCegarLoop]: Abstraction has 17754 states and 33140 transitions. [2022-01-10 17:53:08,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 17:53:08,580 INFO L276 IsEmpty]: Start isEmpty. Operand 17754 states and 33140 transitions. [2022-01-10 17:53:08,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 17:53:08,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:53:08,596 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 17:53:08,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:53:08,597 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 17:53:08,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:53:08,597 INFO L85 PathProgramCache]: Analyzing trace with hash 903134291, now seen corresponding path program 1 times [2022-01-10 17:53:08,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:53:08,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900222714] [2022-01-10 17:53:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:53:08,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:53:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:53:08,671 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 17:53:08,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:53:08,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900222714] [2022-01-10 17:53:08,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900222714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:53:08,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:53:08,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 17:53:08,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016701634] [2022-01-10 17:53:08,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:53:08,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 17:53:08,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:53:08,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 17:53:08,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:53:08,673 INFO L87 Difference]: Start difference. First operand 17754 states and 33140 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 17:53:11,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:53:11,290 INFO L93 Difference]: Finished difference Result 77774 states and 145271 transitions. [2022-01-10 17:53:11,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 17:53:11,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 17:53:11,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:53:11,392 INFO L225 Difference]: With dead ends: 77774 [2022-01-10 17:53:11,393 INFO L226 Difference]: Without dead ends: 60046 [2022-01-10 17:53:11,421 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 17:53:11,422 INFO L933 BasicCegarLoop]: 112095 mSDtfsCounter, 105728 mSDsluCounter, 158052 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105728 SdHoareTripleChecker+Valid, 270147 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:53:11,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105728 Valid, 270147 Invalid, 121 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:53:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60046 states. [2022-01-10 17:53:12,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60046 to 17757. [2022-01-10 17:53:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17757 states, 17747 states have (on average 1.8674142108525384) internal successors, (33141), 17756 states have internal predecessors, (33141), 0 states have call successors, (0), 0 states 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 17:53:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17757 states to 17757 states and 33141 transitions. [2022-01-10 17:53:12,457 INFO L78 Accepts]: Start accepts. Automaton has 17757 states and 33141 transitions. Word has length 59 [2022-01-10 17:53:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:53:12,457 INFO L470 AbstractCegarLoop]: Abstraction has 17757 states and 33141 transitions. [2022-01-10 17:53:12,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 17:53:12,458 INFO L276 IsEmpty]: Start isEmpty. Operand 17757 states and 33141 transitions. [2022-01-10 17:53:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 17:53:12,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:53:12,460 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 17:53:12,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:53:12,460 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:53:12,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:53:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -92983549, now seen corresponding path program 1 times [2022-01-10 17:53:12,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:53:12,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111042129] [2022-01-10 17:53:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:53:12,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:53:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:53:12,509 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 17:53:12,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:53:12,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111042129] [2022-01-10 17:53:12,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111042129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:53:12,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:53:12,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 17:53:12,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487351251] [2022-01-10 17:53:12,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:53:12,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 17:53:12,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:53:12,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 17:53:12,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:53:12,510 INFO L87 Difference]: Start difference. First operand 17757 states and 33141 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 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 17:53:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:53:16,721 INFO L93 Difference]: Finished difference Result 98913 states and 184765 transitions. [2022-01-10 17:53:16,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 17:53:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 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 17:53:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:53:16,856 INFO L225 Difference]: With dead ends: 98913 [2022-01-10 17:53:16,857 INFO L226 Difference]: Without dead ends: 81182 [2022-01-10 17:53:16,885 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 17:53:16,886 INFO L933 BasicCegarLoop]: 151587 mSDtfsCounter, 125468 mSDsluCounter, 256804 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125468 SdHoareTripleChecker+Valid, 408391 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:53:16,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125468 Valid, 408391 Invalid, 146 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:53:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81182 states. [2022-01-10 17:53:18,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81182 to 17761. [2022-01-10 17:53:18,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17761 states, 17751 states have (on average 1.867106078530787) internal successors, (33143), 17760 states have internal predecessors, (33143), 0 states have call successors, (0), 0 states 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 17:53:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17761 states to 17761 states and 33143 transitions. [2022-01-10 17:53:18,067 INFO L78 Accepts]: Start accepts. Automaton has 17761 states and 33143 transitions. Word has length 60 [2022-01-10 17:53:18,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:53:18,067 INFO L470 AbstractCegarLoop]: Abstraction has 17761 states and 33143 transitions. [2022-01-10 17:53:18,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 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 17:53:18,068 INFO L276 IsEmpty]: Start isEmpty. Operand 17761 states and 33143 transitions. [2022-01-10 17:53:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 17:53:18,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:53:18,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:53:18,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 17:53:18,070 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 17:53:18,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:53:18,070 INFO L85 PathProgramCache]: Analyzing trace with hash -301645472, now seen corresponding path program 1 times [2022-01-10 17:53:18,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:53:18,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903082547] [2022-01-10 17:53:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:53:18,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:53:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:53:18,133 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 17:53:18,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:53:18,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903082547] [2022-01-10 17:53:18,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903082547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:53:18,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:53:18,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:53:18,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254352987] [2022-01-10 17:53:18,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:53:18,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:53:18,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:53:18,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:53:18,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:53:18,135 INFO L87 Difference]: Start difference. First operand 17761 states and 33143 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 17:53:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:53:20,014 INFO L93 Difference]: Finished difference Result 63715 states and 118984 transitions. [2022-01-10 17:53:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 17:53:20,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 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 17:53:20,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:53:20,083 INFO L225 Difference]: With dead ends: 63715 [2022-01-10 17:53:20,084 INFO L226 Difference]: Without dead ends: 46013 [2022-01-10 17:53:20,107 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 17:53:20,107 INFO L933 BasicCegarLoop]: 52871 mSDtfsCounter, 72620 mSDsluCounter, 85889 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72620 SdHoareTripleChecker+Valid, 138760 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:53:20,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72620 Valid, 138760 Invalid, 55 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]