/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_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:34:48,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:34:48,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:34:48,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:34:48,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:34:48,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:34:48,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:34:48,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:34:48,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:34:48,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:34:48,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:34:48,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:34:48,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:34:48,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:34:48,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:34:48,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:34:48,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:34:48,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:34:48,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:34:48,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:34:48,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:34:48,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:34:48,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:34:48,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:34:48,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:34:48,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:34:48,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:34:48,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:34:48,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:34:48,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:34:48,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:34:48,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:34:48,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:34:48,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:34:48,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:34:48,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:34:48,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:34:48,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:34:48,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:34:48,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:34:48,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:34:48,367 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:34:48,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:34:48,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:34:48,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:34:48,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:34:48,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:34:48,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:34:48,387 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:34:48,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:34:48,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:34:48,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:34:48,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:34:48,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:34:48,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:34:48,389 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:34:48,389 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:34:48,389 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:34:48,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:34:48,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:34:48,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:34:48,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:34:48,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:34:48,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:48,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:34:48,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:34:48,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:34:48,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:34:48,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:34:48,391 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:34:48,391 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:34:48,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:34:48,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:34:48,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:34:48,393 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:34:48,393 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:34:48,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:34:48,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:34:48,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:34:48,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:34:48,660 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:34:48,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c [2022-01-11 05:34:48,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c78ad798/3cd60f3f001e4418a3f6be739cd6f3af/FLAGe6d6a970d [2022-01-11 05:34:49,302 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:34:49,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c [2022-01-11 05:34:49,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c78ad798/3cd60f3f001e4418a3f6be739cd6f3af/FLAGe6d6a970d [2022-01-11 05:34:49,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c78ad798/3cd60f3f001e4418a3f6be739cd6f3af [2022-01-11 05:34:49,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:34:49,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:34:49,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:49,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:34:49,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:34:49,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:49" (1/1) ... [2022-01-11 05:34:49,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5153aef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:49, skipping insertion in model container [2022-01-11 05:34:49,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:49" (1/1) ... [2022-01-11 05:34:49,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:34:49,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:49,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c[1545,1558] [2022-01-11 05:34:50,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:50,302 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:34:50,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:50,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c[1545,1558] [2022-01-11 05:34:50,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:50,451 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:34:50,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product11.cil.c[1545,1558] [2022-01-11 05:34:50,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:50,562 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:34:50,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50 WrapperNode [2022-01-11 05:34:50,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:50,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:50,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:34:50,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:34:50,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:50,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:50,852 INFO L137 Inliner]: procedures = 93, calls = 344, calls flagged for inlining = 197, calls inlined = 688, statements flattened = 21973 [2022-01-11 05:34:50,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:50,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:34:50,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:34:50,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:34:50,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:50,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:50,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:50,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:51,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:51,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:51,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:51,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:34:51,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:34:51,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:34:51,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:34:51,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (1/1) ... [2022-01-11 05:34:51,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:51,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:34:51,395 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) [2022-01-11 05:34:51,407 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 [2022-01-11 05:34:51,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:34:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:34:51,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:34:51,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:34:51,661 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:34:51,662 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:35:00,248 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:35:00,309 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:35:00,309 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:35:00,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:00 BoogieIcfgContainer [2022-01-11 05:35:00,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:35:00,321 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:35:00,321 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:35:00,322 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:35:00,325 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:00" (1/1) ... [2022-01-11 05:35:01,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:01 BasicIcfg [2022-01-11 05:35:01,946 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:35:01,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:35:01,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:35:01,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:35:01,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:34:49" (1/4) ... [2022-01-11 05:35:01,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a87587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:01, skipping insertion in model container [2022-01-11 05:35:01,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:50" (2/4) ... [2022-01-11 05:35:01,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a87587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:01, skipping insertion in model container [2022-01-11 05:35:01,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:00" (3/4) ... [2022-01-11 05:35:01,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a87587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:35:01, skipping insertion in model container [2022-01-11 05:35:01,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:01" (4/4) ... [2022-01-11 05:35:01,956 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product11.cil.cTransformedIcfg [2022-01-11 05:35:01,961 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:35:01,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:35:02,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:35:02,043 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 [2022-01-11 05:35:02,043 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:35:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 6233 states, 6222 states have (on average 1.8715846994535519) internal successors, (11645), 6232 states have internal predecessors, (11645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:02,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:02,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:02,173 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] [2022-01-11 05:35:02,173 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)] === [2022-01-11 05:35:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash 747901238, now seen corresponding path program 1 times [2022-01-11 05:35:02,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:02,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228249952] [2022-01-11 05:35:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:02,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:02,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:02,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228249952] [2022-01-11 05:35:02,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228249952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:02,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:02,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:02,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827326773] [2022-01-11 05:35:02,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:02,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:02,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:02,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:02,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:02,820 INFO L87 Difference]: Start difference. First operand has 6233 states, 6222 states have (on average 1.8715846994535519) internal successors, (11645), 6232 states have internal predecessors, (11645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:04,645 INFO L93 Difference]: Finished difference Result 15822 states and 29556 transitions. [2022-01-11 05:35:04,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:04,648 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 [2022-01-11 05:35:04,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:04,713 INFO L225 Difference]: With dead ends: 15822 [2022-01-11 05:35:04,714 INFO L226 Difference]: Without dead ends: 10562 [2022-01-11 05:35:04,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:04,741 INFO L933 BasicCegarLoop]: 19122 mSDtfsCounter, 10168 mSDsluCounter, 8783 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10168 SdHoareTripleChecker+Valid, 27905 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:04,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10168 Valid, 27905 Invalid, 1137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [224 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-11 05:35:04,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-01-11 05:35:05,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 10506. [2022-01-11 05:35:05,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10506 states, 10496 states have (on average 1.8505144817073171) internal successors, (19423), 10505 states have internal predecessors, (19423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10506 states to 10506 states and 19423 transitions. [2022-01-11 05:35:05,307 INFO L78 Accepts]: Start accepts. Automaton has 10506 states and 19423 transitions. Word has length 52 [2022-01-11 05:35:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:05,308 INFO L470 AbstractCegarLoop]: Abstraction has 10506 states and 19423 transitions. [2022-01-11 05:35:05,308 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) [2022-01-11 05:35:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 10506 states and 19423 transitions. [2022-01-11 05:35:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:05,311 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:05,311 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] [2022-01-11 05:35:05,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:35:05,312 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)] === [2022-01-11 05:35:05,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1804255723, now seen corresponding path program 1 times [2022-01-11 05:35:05,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:05,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576434219] [2022-01-11 05:35:05,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:05,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:05,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:05,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576434219] [2022-01-11 05:35:05,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576434219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:05,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:05,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:05,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867233817] [2022-01-11 05:35:05,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:05,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:05,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:05,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:05,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:05,408 INFO L87 Difference]: Start difference. First operand 10506 states and 19423 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) [2022-01-11 05:35:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:05,948 INFO L93 Difference]: Finished difference Result 20389 states and 37879 transitions. [2022-01-11 05:35:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:05,949 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 [2022-01-11 05:35:05,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:06,035 INFO L225 Difference]: With dead ends: 20389 [2022-01-11 05:35:06,036 INFO L226 Difference]: Without dead ends: 15422 [2022-01-11 05:35:06,057 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 [2022-01-11 05:35:06,059 INFO L933 BasicCegarLoop]: 15943 mSDtfsCounter, 11208 mSDsluCounter, 9143 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11208 SdHoareTripleChecker+Valid, 25086 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:06,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11208 Valid, 25086 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:35:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15422 states. [2022-01-11 05:35:06,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15422 to 15394. [2022-01-11 05:35:06,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15394 states, 15384 states have (on average 1.8560842433697349) internal successors, (28554), 15393 states have internal predecessors, (28554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15394 states to 15394 states and 28554 transitions. [2022-01-11 05:35:06,619 INFO L78 Accepts]: Start accepts. Automaton has 15394 states and 28554 transitions. Word has length 52 [2022-01-11 05:35:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:06,619 INFO L470 AbstractCegarLoop]: Abstraction has 15394 states and 28554 transitions. [2022-01-11 05:35:06,620 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) [2022-01-11 05:35:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 15394 states and 28554 transitions. [2022-01-11 05:35:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:06,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:06,622 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] [2022-01-11 05:35:06,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:35:06,623 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)] === [2022-01-11 05:35:06,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash -916752042, now seen corresponding path program 1 times [2022-01-11 05:35:06,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:06,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393870755] [2022-01-11 05:35:06,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:06,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:06,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:06,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393870755] [2022-01-11 05:35:06,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393870755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:06,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:06,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:06,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259121269] [2022-01-11 05:35:06,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:06,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:06,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:06,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:06,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:06,810 INFO L87 Difference]: Start difference. First operand 15394 states and 28554 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) [2022-01-11 05:35:07,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:07,375 INFO L93 Difference]: Finished difference Result 43821 states and 81370 transitions. [2022-01-11 05:35:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:07,376 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 [2022-01-11 05:35:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:07,603 INFO L225 Difference]: With dead ends: 43821 [2022-01-11 05:35:07,603 INFO L226 Difference]: Without dead ends: 29569 [2022-01-11 05:35:07,644 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 [2022-01-11 05:35:07,648 INFO L933 BasicCegarLoop]: 11512 mSDtfsCounter, 10397 mSDsluCounter, 11234 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10397 SdHoareTripleChecker+Valid, 22746 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:07,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10397 Valid, 22746 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:07,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29569 states. [2022-01-11 05:35:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29569 to 29236. [2022-01-11 05:35:08,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29236 states, 29226 states have (on average 1.85772941901047) internal successors, (54294), 29235 states have internal predecessors, (54294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:08,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29236 states to 29236 states and 54294 transitions. [2022-01-11 05:35:08,513 INFO L78 Accepts]: Start accepts. Automaton has 29236 states and 54294 transitions. Word has length 52 [2022-01-11 05:35:08,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:08,515 INFO L470 AbstractCegarLoop]: Abstraction has 29236 states and 54294 transitions. [2022-01-11 05:35:08,516 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) [2022-01-11 05:35:08,516 INFO L276 IsEmpty]: Start isEmpty. Operand 29236 states and 54294 transitions. [2022-01-11 05:35:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:08,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:08,519 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] [2022-01-11 05:35:08,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:35:08,520 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)] === [2022-01-11 05:35:08,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:08,520 INFO L85 PathProgramCache]: Analyzing trace with hash -130381617, now seen corresponding path program 1 times [2022-01-11 05:35:08,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:08,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641125138] [2022-01-11 05:35:08,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:08,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:08,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:08,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641125138] [2022-01-11 05:35:08,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641125138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:08,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:08,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:35:08,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789969433] [2022-01-11 05:35:08,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:08,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:35:08,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:35:08,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:35:08,638 INFO L87 Difference]: Start difference. First operand 29236 states and 54294 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:10,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:10,460 INFO L93 Difference]: Finished difference Result 116635 states and 216584 transitions. [2022-01-11 05:35:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:35:10,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 05:35:10,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:10,994 INFO L225 Difference]: With dead ends: 116635 [2022-01-11 05:35:10,995 INFO L226 Difference]: Without dead ends: 87426 [2022-01-11 05:35:11,074 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 [2022-01-11 05:35:11,084 INFO L933 BasicCegarLoop]: 22481 mSDtfsCounter, 33574 mSDsluCounter, 33751 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33574 SdHoareTripleChecker+Valid, 56232 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:11,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33574 Valid, 56232 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87426 states. [2022-01-11 05:35:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87426 to 29256. [2022-01-11 05:35:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29256 states, 29246 states have (on average 1.8571428571428572) internal successors, (54314), 29255 states have internal predecessors, (54314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29256 states to 29256 states and 54314 transitions. [2022-01-11 05:35:12,215 INFO L78 Accepts]: Start accepts. Automaton has 29256 states and 54314 transitions. Word has length 52 [2022-01-11 05:35:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:12,215 INFO L470 AbstractCegarLoop]: Abstraction has 29256 states and 54314 transitions. [2022-01-11 05:35:12,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:12,216 INFO L276 IsEmpty]: Start isEmpty. Operand 29256 states and 54314 transitions. [2022-01-11 05:35:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:35:12,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:12,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:12,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:35:12,220 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)] === [2022-01-11 05:35:12,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:12,221 INFO L85 PathProgramCache]: Analyzing trace with hash -404941032, now seen corresponding path program 1 times [2022-01-11 05:35:12,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:12,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931268382] [2022-01-11 05:35:12,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:12,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:12,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:12,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:12,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931268382] [2022-01-11 05:35:12,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931268382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:12,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:12,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:12,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007784658] [2022-01-11 05:35:12,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:12,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:12,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:12,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:12,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:12,330 INFO L87 Difference]: Start difference. First operand 29256 states and 54314 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:13,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:13,347 INFO L93 Difference]: Finished difference Result 58361 states and 108344 transitions. [2022-01-11 05:35:13,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:13,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 05:35:13,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:13,414 INFO L225 Difference]: With dead ends: 58361 [2022-01-11 05:35:13,414 INFO L226 Difference]: Without dead ends: 29120 [2022-01-11 05:35:13,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:13,443 INFO L933 BasicCegarLoop]: 11202 mSDtfsCounter, 11194 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11194 SdHoareTripleChecker+Valid, 11210 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:13,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11194 Valid, 11210 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:13,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2022-01-11 05:35:14,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 29120. [2022-01-11 05:35:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29120 states, 29110 states have (on average 1.8564754379938166) internal successors, (54042), 29119 states have internal predecessors, (54042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29120 states to 29120 states and 54042 transitions. [2022-01-11 05:35:14,289 INFO L78 Accepts]: Start accepts. Automaton has 29120 states and 54042 transitions. Word has length 53 [2022-01-11 05:35:14,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:14,296 INFO L470 AbstractCegarLoop]: Abstraction has 29120 states and 54042 transitions. [2022-01-11 05:35:14,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 29120 states and 54042 transitions. [2022-01-11 05:35:14,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:35:14,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:14,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:14,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:35:14,299 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)] === [2022-01-11 05:35:14,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:14,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1472753216, now seen corresponding path program 1 times [2022-01-11 05:35:14,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:14,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756668988] [2022-01-11 05:35:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:14,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:14,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:14,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:14,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756668988] [2022-01-11 05:35:14,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756668988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:14,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:14,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:14,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885076789] [2022-01-11 05:35:14,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:14,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:14,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:14,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:14,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:14,573 INFO L87 Difference]: Start difference. First operand 29120 states and 54042 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:15,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:15,646 INFO L93 Difference]: Finished difference Result 58218 states and 108055 transitions. [2022-01-11 05:35:15,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:15,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-11 05:35:15,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:15,708 INFO L225 Difference]: With dead ends: 58218 [2022-01-11 05:35:15,708 INFO L226 Difference]: Without dead ends: 29120 [2022-01-11 05:35:15,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:15,745 INFO L933 BasicCegarLoop]: 11188 mSDtfsCounter, 44743 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44743 SdHoareTripleChecker+Valid, 11226 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:15,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44743 Valid, 11226 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:15,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2022-01-11 05:35:16,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 29120. [2022-01-11 05:35:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29120 states, 29110 states have (on average 1.856338028169014) internal successors, (54038), 29119 states have internal predecessors, (54038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:16,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29120 states to 29120 states and 54038 transitions. [2022-01-11 05:35:16,569 INFO L78 Accepts]: Start accepts. Automaton has 29120 states and 54038 transitions. Word has length 55 [2022-01-11 05:35:16,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:16,569 INFO L470 AbstractCegarLoop]: Abstraction has 29120 states and 54038 transitions. [2022-01-11 05:35:16,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:16,569 INFO L276 IsEmpty]: Start isEmpty. Operand 29120 states and 54038 transitions. [2022-01-11 05:35:16,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:35:16,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:16,572 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] [2022-01-11 05:35:16,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:35:16,572 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)] === [2022-01-11 05:35:16,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:16,573 INFO L85 PathProgramCache]: Analyzing trace with hash -387636108, now seen corresponding path program 1 times [2022-01-11 05:35:16,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:16,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366560952] [2022-01-11 05:35:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:16,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:16,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:16,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366560952] [2022-01-11 05:35:16,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366560952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:16,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:16,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:16,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925960980] [2022-01-11 05:35:16,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:16,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:16,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:16,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:16,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:16,659 INFO L87 Difference]: Start difference. First operand 29120 states and 54038 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:17,647 INFO L93 Difference]: Finished difference Result 58212 states and 108037 transitions. [2022-01-11 05:35:17,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:35:17,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 05:35:17,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:17,699 INFO L225 Difference]: With dead ends: 58212 [2022-01-11 05:35:17,699 INFO L226 Difference]: Without dead ends: 29120 [2022-01-11 05:35:17,729 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 [2022-01-11 05:35:17,730 INFO L933 BasicCegarLoop]: 11170 mSDtfsCounter, 33537 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33537 SdHoareTripleChecker+Valid, 11203 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:17,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33537 Valid, 11203 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:17,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2022-01-11 05:35:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 29120. [2022-01-11 05:35:18,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29120 states, 29110 states have (on average 1.8562006183442117) internal successors, (54034), 29119 states have internal predecessors, (54034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29120 states to 29120 states and 54034 transitions. [2022-01-11 05:35:18,687 INFO L78 Accepts]: Start accepts. Automaton has 29120 states and 54034 transitions. Word has length 56 [2022-01-11 05:35:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:18,687 INFO L470 AbstractCegarLoop]: Abstraction has 29120 states and 54034 transitions. [2022-01-11 05:35:18,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 29120 states and 54034 transitions. [2022-01-11 05:35:18,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:35:18,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:18,689 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] [2022-01-11 05:35:18,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:35:18,690 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)] === [2022-01-11 05:35:18,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:18,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2097699541, now seen corresponding path program 1 times [2022-01-11 05:35:18,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:18,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772005528] [2022-01-11 05:35:18,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:18,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:18,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:18,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772005528] [2022-01-11 05:35:18,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772005528] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:18,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:18,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:35:18,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755202295] [2022-01-11 05:35:18,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:18,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:35:18,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:18,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:35:18,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:35:18,770 INFO L87 Difference]: Start difference. First operand 29120 states and 54034 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:19,624 INFO L93 Difference]: Finished difference Result 58212 states and 108030 transitions. [2022-01-11 05:35:19,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:35:19,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-11 05:35:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:19,685 INFO L225 Difference]: With dead ends: 58212 [2022-01-11 05:35:19,685 INFO L226 Difference]: Without dead ends: 29120 [2022-01-11 05:35:19,709 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 [2022-01-11 05:35:19,710 INFO L933 BasicCegarLoop]: 11170 mSDtfsCounter, 22350 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22350 SdHoareTripleChecker+Valid, 11223 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:19,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22350 Valid, 11223 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:19,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2022-01-11 05:35:20,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 29120. [2022-01-11 05:35:20,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29120 states, 29110 states have (on average 1.856063208519409) internal successors, (54030), 29119 states have internal predecessors, (54030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29120 states to 29120 states and 54030 transitions. [2022-01-11 05:35:20,583 INFO L78 Accepts]: Start accepts. Automaton has 29120 states and 54030 transitions. Word has length 57 [2022-01-11 05:35:20,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:20,583 INFO L470 AbstractCegarLoop]: Abstraction has 29120 states and 54030 transitions. [2022-01-11 05:35:20,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 29120 states and 54030 transitions. [2022-01-11 05:35:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:35:20,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:20,586 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] [2022-01-11 05:35:20,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:35:20,586 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)] === [2022-01-11 05:35:20,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:20,586 INFO L85 PathProgramCache]: Analyzing trace with hash 476524391, now seen corresponding path program 1 times [2022-01-11 05:35:20,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:20,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73835049] [2022-01-11 05:35:20,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:20,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:20,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:20,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73835049] [2022-01-11 05:35:20,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73835049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:20,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:20,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:35:20,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032724936] [2022-01-11 05:35:20,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:20,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:35:20,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:20,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:35:20,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:20,673 INFO L87 Difference]: Start difference. First operand 29120 states and 54030 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:21,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:21,437 INFO L93 Difference]: Finished difference Result 58212 states and 108023 transitions. [2022-01-11 05:35:21,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:35:21,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:35:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:21,484 INFO L225 Difference]: With dead ends: 58212 [2022-01-11 05:35:21,485 INFO L226 Difference]: Without dead ends: 29120 [2022-01-11 05:35:21,507 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 [2022-01-11 05:35:21,507 INFO L933 BasicCegarLoop]: 11170 mSDtfsCounter, 44706 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44706 SdHoareTripleChecker+Valid, 11203 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:21,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44706 Valid, 11203 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2022-01-11 05:35:22,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 29120. [2022-01-11 05:35:22,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29120 states, 29110 states have (on average 1.8559257986946067) internal successors, (54026), 29119 states have internal predecessors, (54026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29120 states to 29120 states and 54026 transitions. [2022-01-11 05:35:22,469 INFO L78 Accepts]: Start accepts. Automaton has 29120 states and 54026 transitions. Word has length 58 [2022-01-11 05:35:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:22,469 INFO L470 AbstractCegarLoop]: Abstraction has 29120 states and 54026 transitions. [2022-01-11 05:35:22,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 29120 states and 54026 transitions. [2022-01-11 05:35:22,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:35:22,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:22,471 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] [2022-01-11 05:35:22,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:35:22,471 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)] === [2022-01-11 05:35:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1575296834, now seen corresponding path program 1 times [2022-01-11 05:35:22,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:22,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642193999] [2022-01-11 05:35:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:22,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:22,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:22,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642193999] [2022-01-11 05:35:22,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642193999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:22,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:22,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:22,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509093680] [2022-01-11 05:35:22,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:22,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:22,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:22,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:22,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:22,556 INFO L87 Difference]: Start difference. First operand 29120 states and 54026 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:23,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:23,414 INFO L93 Difference]: Finished difference Result 58212 states and 108016 transitions. [2022-01-11 05:35:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:35:23,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:35:23,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:23,463 INFO L225 Difference]: With dead ends: 58212 [2022-01-11 05:35:23,464 INFO L226 Difference]: Without dead ends: 29120 [2022-01-11 05:35:23,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:23,488 INFO L933 BasicCegarLoop]: 11170 mSDtfsCounter, 44686 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44686 SdHoareTripleChecker+Valid, 11223 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:23,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44686 Valid, 11223 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:23,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29120 states. [2022-01-11 05:35:24,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29120 to 29120. [2022-01-11 05:35:24,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29120 states, 29110 states have (on average 1.8557883888698041) internal successors, (54022), 29119 states have internal predecessors, (54022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29120 states to 29120 states and 54022 transitions. [2022-01-11 05:35:24,302 INFO L78 Accepts]: Start accepts. Automaton has 29120 states and 54022 transitions. Word has length 59 [2022-01-11 05:35:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:24,302 INFO L470 AbstractCegarLoop]: Abstraction has 29120 states and 54022 transitions. [2022-01-11 05:35:24,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:24,303 INFO L276 IsEmpty]: Start isEmpty. Operand 29120 states and 54022 transitions. [2022-01-11 05:35:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:35:24,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:24,305 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] [2022-01-11 05:35:24,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:35:24,305 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)] === [2022-01-11 05:35:24,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1005629862, now seen corresponding path program 1 times [2022-01-11 05:35:24,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:24,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106046090] [2022-01-11 05:35:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:24,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:24,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:24,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106046090] [2022-01-11 05:35:24,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106046090] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:24,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:24,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:24,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502719489] [2022-01-11 05:35:24,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:24,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:24,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:24,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:24,388 INFO L87 Difference]: Start difference. First operand 29120 states and 54022 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:30,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:30,198 INFO L93 Difference]: Finished difference Result 189738 states and 351908 transitions. [2022-01-11 05:35:30,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:30,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 05:35:30,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:30,714 INFO L225 Difference]: With dead ends: 189738 [2022-01-11 05:35:30,714 INFO L226 Difference]: Without dead ends: 161629 [2022-01-11 05:35:30,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:35:30,769 INFO L933 BasicCegarLoop]: 22775 mSDtfsCounter, 75404 mSDsluCounter, 61051 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75404 SdHoareTripleChecker+Valid, 83826 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:30,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75404 Valid, 83826 Invalid, 1693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [349 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-11 05:35:30,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161629 states. [2022-01-11 05:35:33,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161629 to 54656. [2022-01-11 05:35:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54656 states, 54646 states have (on average 1.855927240786151) internal successors, (101419), 54655 states have internal predecessors, (101419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54656 states to 54656 states and 101419 transitions. [2022-01-11 05:35:33,335 INFO L78 Accepts]: Start accepts. Automaton has 54656 states and 101419 transitions. Word has length 60 [2022-01-11 05:35:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:33,335 INFO L470 AbstractCegarLoop]: Abstraction has 54656 states and 101419 transitions. [2022-01-11 05:35:33,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 54656 states and 101419 transitions. [2022-01-11 05:35:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:35:33,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:33,340 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] [2022-01-11 05:35:33,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:35:33,340 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash 283551757, now seen corresponding path program 1 times [2022-01-11 05:35:33,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:33,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540953846] [2022-01-11 05:35:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:33,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:33,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:33,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540953846] [2022-01-11 05:35:33,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540953846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:33,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:33,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:33,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110178876] [2022-01-11 05:35:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:33,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:33,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:33,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:33,430 INFO L87 Difference]: Start difference. First operand 54656 states and 101419 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:35,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:35,727 INFO L93 Difference]: Finished difference Result 109462 states and 202843 transitions. [2022-01-11 05:35:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:35:35,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 05:35:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:35,832 INFO L225 Difference]: With dead ends: 109462 [2022-01-11 05:35:35,832 INFO L226 Difference]: Without dead ends: 54882 [2022-01-11 05:35:35,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:35,865 INFO L933 BasicCegarLoop]: 17908 mSDtfsCounter, 32557 mSDsluCounter, 28218 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32557 SdHoareTripleChecker+Valid, 46126 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:35,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32557 Valid, 46126 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:35:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54882 states. [2022-01-11 05:35:37,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54882 to 53703. [2022-01-11 05:35:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53703 states, 53693 states have (on average 1.8601679921032537) internal successors, (99878), 53702 states have internal predecessors, (99878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53703 states to 53703 states and 99878 transitions. [2022-01-11 05:35:37,873 INFO L78 Accepts]: Start accepts. Automaton has 53703 states and 99878 transitions. Word has length 61 [2022-01-11 05:35:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:37,873 INFO L470 AbstractCegarLoop]: Abstraction has 53703 states and 99878 transitions. [2022-01-11 05:35:37,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 53703 states and 99878 transitions. [2022-01-11 05:35:37,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:35:37,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:37,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:37,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:35:37,875 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)] === [2022-01-11 05:35:37,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:37,875 INFO L85 PathProgramCache]: Analyzing trace with hash 254844293, now seen corresponding path program 1 times [2022-01-11 05:35:37,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:37,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217910440] [2022-01-11 05:35:37,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:37,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:37,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:37,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217910440] [2022-01-11 05:35:37,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217910440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:37,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:37,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:37,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567394730] [2022-01-11 05:35:37,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:37,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:37,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:37,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:37,950 INFO L87 Difference]: Start difference. First operand 53703 states and 99878 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)