/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_spec2_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:34:07,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:34:07,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:34:07,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:34:07,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:34:07,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:34:07,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:34:07,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:34:07,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:34:07,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:34:07,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:34:07,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:34:07,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:34:07,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:34:07,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:34:07,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:34:07,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:34:07,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:34:07,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:34:07,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:34:07,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:34:07,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:34:07,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:34:07,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:34:07,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:34:07,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:34:07,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:34:07,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:34:07,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:34:07,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:34:07,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:34:07,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:34:07,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:34:07,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:34:07,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:34:07,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:34:07,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:34:07,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:34:07,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:34:07,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:34:07,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:34:07,611 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 05:34:07,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:34:07,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:34:07,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:34:07,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:34:07,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:34:07,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:34:07,641 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:34:07,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:34:07,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:34:07,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:34:07,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:34:07,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:07,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:34:07,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:34:07,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:34:07,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:34:07,644 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:34:07,645 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:34:07,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:34:07,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:34:07,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:34:07,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:34:07,863 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:34:07,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product27.cil.c [2022-01-11 05:34:07,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc9d9df3/c2f9845ad01943148810a023be501467/FLAGcb60e2226 [2022-01-11 05:34:08,390 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:34:08,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product27.cil.c [2022-01-11 05:34:08,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc9d9df3/c2f9845ad01943148810a023be501467/FLAGcb60e2226 [2022-01-11 05:34:08,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edc9d9df3/c2f9845ad01943148810a023be501467 [2022-01-11 05:34:08,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:34:08,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:34:08,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:08,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:34:08,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:34:08,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:08" (1/1) ... [2022-01-11 05:34:08,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b32ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:08, skipping insertion in model container [2022-01-11 05:34:08,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:08" (1/1) ... [2022-01-11 05:34:08,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:34:08,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:09,180 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_spec2_product27.cil.c[16494,16507] [2022-01-11 05:34:09,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:09,348 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:34:09,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:09,385 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_spec2_product27.cil.c[16494,16507] [2022-01-11 05:34:09,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:09,430 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:34:09,450 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_spec2_product27.cil.c[16494,16507] [2022-01-11 05:34:09,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:09,498 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:34:09,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09 WrapperNode [2022-01-11 05:34:09,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:09,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:09,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:34:09,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:34:09,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,703 INFO L137 Inliner]: procedures = 97, calls = 342, calls flagged for inlining = 195, calls inlined = 330, statements flattened = 9572 [2022-01-11 05:34:09,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:09,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:34:09,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:34:09,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:34:09,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:34:09,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:34:09,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:34:09,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:34:09,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (1/1) ... [2022-01-11 05:34:09,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:09,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:34:09,923 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 05:34:09,931 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 05:34:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:34:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:34:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:34:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:34:10,107 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:34:10,108 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:34:13,474 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:34:13,500 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:34:13,500 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:34:13,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:13 BoogieIcfgContainer [2022-01-11 05:34:13,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:34:13,507 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:34:13,507 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:34:13,509 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:34:13,511 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:13" (1/1) ... [2022-01-11 05:34:14,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:34:14 BasicIcfg [2022-01-11 05:34:14,164 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:34:14,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:34:14,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:34:14,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:34:14,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:34:08" (1/4) ... [2022-01-11 05:34:14,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564bc916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:34:14, skipping insertion in model container [2022-01-11 05:34:14,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:09" (2/4) ... [2022-01-11 05:34:14,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564bc916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:34:14, skipping insertion in model container [2022-01-11 05:34:14,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:13" (3/4) ... [2022-01-11 05:34:14,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564bc916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:34:14, skipping insertion in model container [2022-01-11 05:34:14,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:34:14" (4/4) ... [2022-01-11 05:34:14,171 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product27.cil.cTransformedIcfg [2022-01-11 05:34:14,174 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:34:14,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:34:14,216 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:34:14,222 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 05:34:14,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:34:14,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 2676 states, 2670 states have (on average 1.8588014981273409) internal successors, (4963), 2675 states have internal predecessors, (4963), 0 states have call successors, (0), 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 05:34:14,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:34:14,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:14,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:14,287 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:14,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:14,296 INFO L85 PathProgramCache]: Analyzing trace with hash -179029468, now seen corresponding path program 1 times [2022-01-11 05:34:14,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:14,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993295413] [2022-01-11 05:34:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:14,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:14,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:14,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993295413] [2022-01-11 05:34:14,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993295413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:14,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:14,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:14,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415020861] [2022-01-11 05:34:14,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:14,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:14,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:14,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:14,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:14,676 INFO L87 Difference]: Start difference. First operand has 2676 states, 2670 states have (on average 1.8588014981273409) internal successors, (4963), 2675 states have internal predecessors, (4963), 0 states have call successors, (0), 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 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:14,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:14,919 INFO L93 Difference]: Finished difference Result 5337 states and 9903 transitions. [2022-01-11 05:34:14,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:14,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 05:34:14,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:14,945 INFO L225 Difference]: With dead ends: 5337 [2022-01-11 05:34:14,945 INFO L226 Difference]: Without dead ends: 2665 [2022-01-11 05:34:14,956 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 05:34:14,960 INFO L933 BasicCegarLoop]: 4942 mSDtfsCounter, 4937 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4937 SdHoareTripleChecker+Valid, 4953 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:14,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4937 Valid, 4953 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:14,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-01-11 05:34:15,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-01-11 05:34:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2660 states have (on average 1.856766917293233) internal successors, (4939), 2664 states have internal predecessors, (4939), 0 states have call successors, (0), 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 05:34:15,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4939 transitions. [2022-01-11 05:34:15,074 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4939 transitions. Word has length 51 [2022-01-11 05:34:15,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:15,074 INFO L470 AbstractCegarLoop]: Abstraction has 2665 states and 4939 transitions. [2022-01-11 05:34:15,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:15,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4939 transitions. [2022-01-11 05:34:15,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:34:15,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:15,077 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 05:34:15,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:34:15,077 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:15,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:15,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1527882166, now seen corresponding path program 1 times [2022-01-11 05:34:15,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:15,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418928064] [2022-01-11 05:34:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:15,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:15,232 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 05:34:15,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:15,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418928064] [2022-01-11 05:34:15,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418928064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:15,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:15,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:34:15,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209409709] [2022-01-11 05:34:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:15,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:34:15,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:34:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:34:15,236 INFO L87 Difference]: Start difference. First operand 2665 states and 4939 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 05:34:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:15,425 INFO L93 Difference]: Finished difference Result 5316 states and 9863 transitions. [2022-01-11 05:34:15,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:15,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 05:34:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:15,436 INFO L225 Difference]: With dead ends: 5316 [2022-01-11 05:34:15,436 INFO L226 Difference]: Without dead ends: 2665 [2022-01-11 05:34:15,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:34:15,441 INFO L933 BasicCegarLoop]: 4932 mSDtfsCounter, 14791 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14791 SdHoareTripleChecker+Valid, 4939 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:15,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14791 Valid, 4939 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-01-11 05:34:15,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-01-11 05:34:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2660 states have (on average 1.856390977443609) internal successors, (4938), 2664 states have internal predecessors, (4938), 0 states have call successors, (0), 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 05:34:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4938 transitions. [2022-01-11 05:34:15,501 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4938 transitions. Word has length 58 [2022-01-11 05:34:15,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:15,503 INFO L470 AbstractCegarLoop]: Abstraction has 2665 states and 4938 transitions. [2022-01-11 05:34:15,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 05:34:15,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4938 transitions. [2022-01-11 05:34:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:34:15,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:15,513 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 05:34:15,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:34:15,514 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:15,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:15,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1066344651, now seen corresponding path program 1 times [2022-01-11 05:34:15,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:15,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086651710] [2022-01-11 05:34:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:15,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:15,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:15,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086651710] [2022-01-11 05:34:15,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086651710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:15,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:15,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:15,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650734135] [2022-01-11 05:34:15,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:15,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:15,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:15,600 INFO L87 Difference]: Start difference. First operand 2665 states and 4938 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 05:34:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:15,704 INFO L93 Difference]: Finished difference Result 5280 states and 9791 transitions. [2022-01-11 05:34:15,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:15,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 05:34:15,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:15,713 INFO L225 Difference]: With dead ends: 5280 [2022-01-11 05:34:15,714 INFO L226 Difference]: Without dead ends: 2665 [2022-01-11 05:34:15,718 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 05:34:15,719 INFO L933 BasicCegarLoop]: 4878 mSDtfsCounter, 4897 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4897 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:15,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4897 Valid, 4892 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:15,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-01-11 05:34:15,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2665. [2022-01-11 05:34:15,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2660 states have (on average 1.8469924812030074) internal successors, (4913), 2664 states have internal predecessors, (4913), 0 states have call successors, (0), 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 05:34:15,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4913 transitions. [2022-01-11 05:34:15,779 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4913 transitions. Word has length 58 [2022-01-11 05:34:15,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:15,779 INFO L470 AbstractCegarLoop]: Abstraction has 2665 states and 4913 transitions. [2022-01-11 05:34:15,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 05:34:15,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4913 transitions. [2022-01-11 05:34:15,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:34:15,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:15,781 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 05:34:15,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:34:15,782 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:15,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:15,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1283332678, now seen corresponding path program 1 times [2022-01-11 05:34:15,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:15,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857703589] [2022-01-11 05:34:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:15,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:15,857 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 05:34:15,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:15,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857703589] [2022-01-11 05:34:15,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857703589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:15,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:15,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:15,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882013302] [2022-01-11 05:34:15,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:15,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:15,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:15,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:15,858 INFO L87 Difference]: Start difference. First operand 2665 states and 4913 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) [2022-01-11 05:34:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:16,044 INFO L93 Difference]: Finished difference Result 5979 states and 11072 transitions. [2022-01-11 05:34:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:16,044 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 61 [2022-01-11 05:34:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:16,060 INFO L225 Difference]: With dead ends: 5979 [2022-01-11 05:34:16,060 INFO L226 Difference]: Without dead ends: 4623 [2022-01-11 05:34:16,064 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 05:34:16,071 INFO L933 BasicCegarLoop]: 5378 mSDtfsCounter, 4847 mSDsluCounter, 3643 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4847 SdHoareTripleChecker+Valid, 9021 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:16,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4847 Valid, 9021 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:16,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4623 states. [2022-01-11 05:34:16,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4623 to 4623. [2022-01-11 05:34:16,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4623 states, 4618 states have (on average 1.8546990038977913) internal successors, (8565), 4622 states have internal predecessors, (8565), 0 states have call successors, (0), 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 05:34:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4623 states to 4623 states and 8565 transitions. [2022-01-11 05:34:16,188 INFO L78 Accepts]: Start accepts. Automaton has 4623 states and 8565 transitions. Word has length 61 [2022-01-11 05:34:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:16,188 INFO L470 AbstractCegarLoop]: Abstraction has 4623 states and 8565 transitions. [2022-01-11 05:34:16,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-01-11 05:34:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 4623 states and 8565 transitions. [2022-01-11 05:34:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:34:16,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:16,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:16,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:34:16,193 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:16,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1623176503, now seen corresponding path program 1 times [2022-01-11 05:34:16,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:16,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603297668] [2022-01-11 05:34:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:16,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:16,283 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 05:34:16,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:16,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603297668] [2022-01-11 05:34:16,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603297668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:16,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:16,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:16,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085840391] [2022-01-11 05:34:16,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:16,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:16,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:16,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:16,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:16,286 INFO L87 Difference]: Start difference. First operand 4623 states and 8565 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 05:34:16,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:16,461 INFO L93 Difference]: Finished difference Result 11110 states and 20626 transitions. [2022-01-11 05:34:16,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:16,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-01-11 05:34:16,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:16,492 INFO L225 Difference]: With dead ends: 11110 [2022-01-11 05:34:16,492 INFO L226 Difference]: Without dead ends: 8422 [2022-01-11 05:34:16,500 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 05:34:16,502 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4846 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 8556 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:16,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4846 Valid, 8556 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:16,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8422 states. [2022-01-11 05:34:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8422 to 8420. [2022-01-11 05:34:16,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8420 states, 8415 states have (on average 1.8589423648247179) internal successors, (15643), 8419 states have internal predecessors, (15643), 0 states have call successors, (0), 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 05:34:16,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8420 states to 8420 states and 15643 transitions. [2022-01-11 05:34:16,762 INFO L78 Accepts]: Start accepts. Automaton has 8420 states and 15643 transitions. Word has length 63 [2022-01-11 05:34:16,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:16,766 INFO L470 AbstractCegarLoop]: Abstraction has 8420 states and 15643 transitions. [2022-01-11 05:34:16,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 05:34:16,766 INFO L276 IsEmpty]: Start isEmpty. Operand 8420 states and 15643 transitions. [2022-01-11 05:34:16,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:34:16,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:16,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:16,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:34:16,769 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:16,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1629360537, now seen corresponding path program 1 times [2022-01-11 05:34:16,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:16,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729344806] [2022-01-11 05:34:16,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:16,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:16,838 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 05:34:16,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:16,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729344806] [2022-01-11 05:34:16,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729344806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:16,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:16,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:16,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279714226] [2022-01-11 05:34:16,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:16,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:16,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:16,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:16,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:16,840 INFO L87 Difference]: Start difference. First operand 8420 states and 15643 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:17,124 INFO L93 Difference]: Finished difference Result 21122 states and 39263 transitions. [2022-01-11 05:34:17,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:17,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 05:34:17,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:17,165 INFO L225 Difference]: With dead ends: 21122 [2022-01-11 05:34:17,165 INFO L226 Difference]: Without dead ends: 15779 [2022-01-11 05:34:17,179 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 05:34:17,180 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4834 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 8559 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:17,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4834 Valid, 8559 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:17,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15779 states. [2022-01-11 05:34:17,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15779 to 15775. [2022-01-11 05:34:17,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15775 states, 15770 states have (on average 1.8608116677235256) internal successors, (29345), 15774 states have internal predecessors, (29345), 0 states have call successors, (0), 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 05:34:17,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15775 states to 15775 states and 29345 transitions. [2022-01-11 05:34:17,647 INFO L78 Accepts]: Start accepts. Automaton has 15775 states and 29345 transitions. Word has length 64 [2022-01-11 05:34:17,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:17,648 INFO L470 AbstractCegarLoop]: Abstraction has 15775 states and 29345 transitions. [2022-01-11 05:34:17,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:17,648 INFO L276 IsEmpty]: Start isEmpty. Operand 15775 states and 29345 transitions. [2022-01-11 05:34:17,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:34:17,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:17,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:17,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:34:17,650 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:17,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1029446180, now seen corresponding path program 1 times [2022-01-11 05:34:17,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:17,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697871412] [2022-01-11 05:34:17,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:17,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:17,696 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 05:34:17,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:17,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697871412] [2022-01-11 05:34:17,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697871412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:17,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:17,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:17,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671369498] [2022-01-11 05:34:17,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:17,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:17,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:17,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:17,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:17,698 INFO L87 Difference]: Start difference. First operand 15775 states and 29345 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 05:34:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:18,242 INFO L93 Difference]: Finished difference Result 40646 states and 75592 transitions. [2022-01-11 05:34:18,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:18,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-11 05:34:18,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:18,312 INFO L225 Difference]: With dead ends: 40646 [2022-01-11 05:34:18,313 INFO L226 Difference]: Without dead ends: 30012 [2022-01-11 05:34:18,325 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 05:34:18,327 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4833 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 8562 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:18,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4833 Valid, 8562 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30012 states. [2022-01-11 05:34:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30012 to 30006. [2022-01-11 05:34:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30006 states, 30001 states have (on average 1.8612379587347088) internal successors, (55839), 30005 states have internal predecessors, (55839), 0 states have call successors, (0), 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 05:34:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30006 states to 30006 states and 55839 transitions. [2022-01-11 05:34:19,058 INFO L78 Accepts]: Start accepts. Automaton has 30006 states and 55839 transitions. Word has length 65 [2022-01-11 05:34:19,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:19,059 INFO L470 AbstractCegarLoop]: Abstraction has 30006 states and 55839 transitions. [2022-01-11 05:34:19,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 05:34:19,059 INFO L276 IsEmpty]: Start isEmpty. Operand 30006 states and 55839 transitions. [2022-01-11 05:34:19,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 05:34:19,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:19,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:19,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:34:19,062 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:19,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:19,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1848075850, now seen corresponding path program 1 times [2022-01-11 05:34:19,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:19,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602941920] [2022-01-11 05:34:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:19,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:19,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:19,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602941920] [2022-01-11 05:34:19,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602941920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:19,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:19,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:19,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936870519] [2022-01-11 05:34:19,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:19,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:19,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:19,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:19,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:19,135 INFO L87 Difference]: Start difference. First operand 30006 states and 55839 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:20,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:20,078 INFO L93 Difference]: Finished difference Result 78694 states and 146356 transitions. [2022-01-11 05:34:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:20,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-01-11 05:34:20,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:20,204 INFO L225 Difference]: With dead ends: 78694 [2022-01-11 05:34:20,204 INFO L226 Difference]: Without dead ends: 57510 [2022-01-11 05:34:20,241 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 05:34:20,242 INFO L933 BasicCegarLoop]: 4911 mSDtfsCounter, 4832 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4832 SdHoareTripleChecker+Valid, 8566 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:20,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4832 Valid, 8566 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:20,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57510 states. [2022-01-11 05:34:21,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57510 to 57502. [2022-01-11 05:34:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8608101292241335) internal successors, (106991), 57501 states have internal predecessors, (106991), 0 states have call successors, (0), 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 05:34:21,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 106991 transitions. [2022-01-11 05:34:21,540 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 106991 transitions. Word has length 66 [2022-01-11 05:34:21,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:21,540 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 106991 transitions. [2022-01-11 05:34:21,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:21,541 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 106991 transitions. [2022-01-11 05:34:21,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-11 05:34:21,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:21,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:21,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:34:21,563 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:21,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:21,564 INFO L85 PathProgramCache]: Analyzing trace with hash 346945443, now seen corresponding path program 1 times [2022-01-11 05:34:21,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:21,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444986179] [2022-01-11 05:34:21,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:21,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:21,634 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 05:34:21,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:21,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444986179] [2022-01-11 05:34:21,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444986179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:21,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:21,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:21,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666345348] [2022-01-11 05:34:21,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:21,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:21,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:21,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:21,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:21,637 INFO L87 Difference]: Start difference. First operand 57502 states and 106991 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 05:34:23,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:23,270 INFO L93 Difference]: Finished difference Result 117363 states and 218334 transitions. [2022-01-11 05:34:23,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:23,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-11 05:34:23,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:23,397 INFO L225 Difference]: With dead ends: 117363 [2022-01-11 05:34:23,397 INFO L226 Difference]: Without dead ends: 60904 [2022-01-11 05:34:23,451 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 05:34:23,453 INFO L933 BasicCegarLoop]: 5621 mSDtfsCounter, 3751 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3751 SdHoareTripleChecker+Valid, 8105 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:23,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3751 Valid, 8105 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:34:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60904 states. [2022-01-11 05:34:24,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60904 to 57502. [2022-01-11 05:34:24,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8372436822790754) internal successors, (105636), 57501 states have internal predecessors, (105636), 0 states have call successors, (0), 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 05:34:24,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 105636 transitions. [2022-01-11 05:34:24,835 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 105636 transitions. Word has length 108 [2022-01-11 05:34:24,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:24,835 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 105636 transitions. [2022-01-11 05:34:24,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 05:34:24,835 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 105636 transitions. [2022-01-11 05:34:24,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-11 05:34:24,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:24,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:24,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:34:24,854 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:24,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:24,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1487610028, now seen corresponding path program 1 times [2022-01-11 05:34:24,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:24,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410958905] [2022-01-11 05:34:24,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:24,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:24,903 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 05:34:24,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:24,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410958905] [2022-01-11 05:34:24,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410958905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:24,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:24,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:24,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122631240] [2022-01-11 05:34:24,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:24,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:24,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:24,905 INFO L87 Difference]: Start difference. First operand 57502 states and 105636 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 05:34:26,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:26,572 INFO L93 Difference]: Finished difference Result 119314 states and 219333 transitions. [2022-01-11 05:34:26,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:26,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-11 05:34:26,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:26,700 INFO L225 Difference]: With dead ends: 119314 [2022-01-11 05:34:26,701 INFO L226 Difference]: Without dead ends: 64141 [2022-01-11 05:34:26,752 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 05:34:26,752 INFO L933 BasicCegarLoop]: 6127 mSDtfsCounter, 3476 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3476 SdHoareTripleChecker+Valid, 8929 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:26,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3476 Valid, 8929 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:34:26,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64141 states. [2022-01-11 05:34:27,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64141 to 57502. [2022-01-11 05:34:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8169817555698557) internal successors, (104471), 57501 states have internal predecessors, (104471), 0 states have call successors, (0), 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 05:34:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 104471 transitions. [2022-01-11 05:34:27,911 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 104471 transitions. Word has length 113 [2022-01-11 05:34:27,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:27,911 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 104471 transitions. [2022-01-11 05:34:27,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 05:34:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 104471 transitions. [2022-01-11 05:34:27,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-11 05:34:27,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:27,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:27,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:34:27,936 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:27,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:27,937 INFO L85 PathProgramCache]: Analyzing trace with hash -998478688, now seen corresponding path program 1 times [2022-01-11 05:34:27,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:27,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695200449] [2022-01-11 05:34:27,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:27,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:28,152 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 05:34:28,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:28,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695200449] [2022-01-11 05:34:28,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695200449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:28,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:28,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:28,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524624783] [2022-01-11 05:34:28,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:28,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:28,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:28,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:28,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:28,155 INFO L87 Difference]: Start difference. First operand 57502 states and 104471 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 05:34:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:29,828 INFO L93 Difference]: Finished difference Result 120938 states and 220265 transitions. [2022-01-11 05:34:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-11 05:34:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:29,946 INFO L225 Difference]: With dead ends: 120938 [2022-01-11 05:34:29,946 INFO L226 Difference]: Without dead ends: 68211 [2022-01-11 05:34:29,976 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 05:34:29,977 INFO L933 BasicCegarLoop]: 6525 mSDtfsCounter, 3323 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 9645 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:29,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3323 Valid, 9645 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:34:30,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68211 states. [2022-01-11 05:34:31,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68211 to 57502. [2022-01-11 05:34:31,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57502 states, 57497 states have (on average 1.8008939596848532) internal successors, (103546), 57501 states have internal predecessors, (103546), 0 states have call successors, (0), 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 05:34:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57502 states to 57502 states and 103546 transitions. [2022-01-11 05:34:31,295 INFO L78 Accepts]: Start accepts. Automaton has 57502 states and 103546 transitions. Word has length 117 [2022-01-11 05:34:31,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:31,295 INFO L470 AbstractCegarLoop]: Abstraction has 57502 states and 103546 transitions. [2022-01-11 05:34:31,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 05:34:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand 57502 states and 103546 transitions. [2022-01-11 05:34:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-11 05:34:31,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:31,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:31,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:34:31,314 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:31,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1098449306, now seen corresponding path program 1 times [2022-01-11 05:34:31,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:31,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909510379] [2022-01-11 05:34:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:31,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:31,411 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 05:34:31,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:31,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909510379] [2022-01-11 05:34:31,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909510379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:31,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:31,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:31,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047175633] [2022-01-11 05:34:31,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:31,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:31,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:31,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:31,413 INFO L87 Difference]: Start difference. First operand 57502 states and 103546 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 05:34:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:33,569 INFO L93 Difference]: Finished difference Result 147688 states and 267527 transitions. [2022-01-11 05:34:33,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:33,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-11 05:34:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:33,763 INFO L225 Difference]: With dead ends: 147688 [2022-01-11 05:34:33,763 INFO L226 Difference]: Without dead ends: 98086 [2022-01-11 05:34:33,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:33,815 INFO L933 BasicCegarLoop]: 7406 mSDtfsCounter, 3058 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 11269 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:33,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3058 Valid, 11269 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:34:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98086 states. [2022-01-11 05:34:35,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98086 to 57187. [2022-01-11 05:34:35,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57187 states, 57182 states have (on average 1.7887796859151481) internal successors, (102286), 57186 states have internal predecessors, (102286), 0 states have call successors, (0), 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 05:34:35,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57187 states to 57187 states and 102286 transitions. [2022-01-11 05:34:35,504 INFO L78 Accepts]: Start accepts. Automaton has 57187 states and 102286 transitions. Word has length 120 [2022-01-11 05:34:35,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:35,504 INFO L470 AbstractCegarLoop]: Abstraction has 57187 states and 102286 transitions. [2022-01-11 05:34:35,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 05:34:35,505 INFO L276 IsEmpty]: Start isEmpty. Operand 57187 states and 102286 transitions. [2022-01-11 05:34:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 05:34:35,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:35,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:34:35,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:34:35,520 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:35,521 INFO L85 PathProgramCache]: Analyzing trace with hash 585844771, now seen corresponding path program 1 times [2022-01-11 05:34:35,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:35,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803793630] [2022-01-11 05:34:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:35,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:35,595 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 05:34:35,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:35,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803793630] [2022-01-11 05:34:35,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803793630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:35,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:35,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:35,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719425777] [2022-01-11 05:34:35,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:35,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:35,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:35,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:35,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:35,597 INFO L87 Difference]: Start difference. First operand 57187 states and 102286 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 05:34:37,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:37,632 INFO L93 Difference]: Finished difference Result 118252 states and 213226 transitions. [2022-01-11 05:34:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:37,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 05:34:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:37,764 INFO L225 Difference]: With dead ends: 118252 [2022-01-11 05:34:37,764 INFO L226 Difference]: Without dead ends: 72651 [2022-01-11 05:34:37,799 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 05:34:37,800 INFO L933 BasicCegarLoop]: 6963 mSDtfsCounter, 2782 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 10719 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:37,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2782 Valid, 10719 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:34:37,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72651 states. [2022-01-11 05:34:39,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72651 to 57187. [2022-01-11 05:34:39,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57187 states, 57182 states have (on average 1.7775873526634256) internal successors, (101646), 57186 states have internal predecessors, (101646), 0 states have call successors, (0), 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 05:34:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57187 states to 57187 states and 101646 transitions. [2022-01-11 05:34:39,221 INFO L78 Accepts]: Start accepts. Automaton has 57187 states and 101646 transitions. Word has length 121 [2022-01-11 05:34:39,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:39,221 INFO L470 AbstractCegarLoop]: Abstraction has 57187 states and 101646 transitions. [2022-01-11 05:34:39,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 05:34:39,221 INFO L276 IsEmpty]: Start isEmpty. Operand 57187 states and 101646 transitions. [2022-01-11 05:34:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-11 05:34:39,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:39,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:39,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:34:39,236 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash 295027403, now seen corresponding path program 1 times [2022-01-11 05:34:39,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:39,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929290779] [2022-01-11 05:34:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:39,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:39,311 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 05:34:39,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:39,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929290779] [2022-01-11 05:34:39,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929290779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:39,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:39,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:34:39,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739644386] [2022-01-11 05:34:39,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:39,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:34:39,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:39,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:34:39,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:34:39,313 INFO L87 Difference]: Start difference. First operand 57187 states and 101646 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 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 05:34:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:41,889 INFO L93 Difference]: Finished difference Result 171461 states and 304818 transitions. [2022-01-11 05:34:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:34:41,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-11 05:34:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:42,128 INFO L225 Difference]: With dead ends: 171461 [2022-01-11 05:34:42,128 INFO L226 Difference]: Without dead ends: 114303 [2022-01-11 05:34:42,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:34:42,168 INFO L933 BasicCegarLoop]: 9372 mSDtfsCounter, 14062 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14062 SdHoareTripleChecker+Valid, 14077 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:42,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14062 Valid, 14077 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:42,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114303 states. [2022-01-11 05:34:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114303 to 57166. [2022-01-11 05:34:44,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57166 states, 57161 states have (on average 1.7777505641958677) internal successors, (101618), 57165 states have internal predecessors, (101618), 0 states have call successors, (0), 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 05:34:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57166 states to 57166 states and 101618 transitions. [2022-01-11 05:34:44,186 INFO L78 Accepts]: Start accepts. Automaton has 57166 states and 101618 transitions. Word has length 122 [2022-01-11 05:34:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:44,187 INFO L470 AbstractCegarLoop]: Abstraction has 57166 states and 101618 transitions. [2022-01-11 05:34:44,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 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 05:34:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 57166 states and 101618 transitions. [2022-01-11 05:34:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-11 05:34:44,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:44,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:44,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:34:44,201 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:44,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash 36381522, now seen corresponding path program 1 times [2022-01-11 05:34:44,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:44,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537122713] [2022-01-11 05:34:44,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:44,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:44,372 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 05:34:44,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:44,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537122713] [2022-01-11 05:34:44,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537122713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:44,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:44,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:34:44,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787101911] [2022-01-11 05:34:44,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:44,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:34:44,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:44,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:34:44,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:34:44,373 INFO L87 Difference]: Start difference. First operand 57166 states and 101618 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 05:34:45,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:45,911 INFO L93 Difference]: Finished difference Result 114303 states and 203204 transitions. [2022-01-11 05:34:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:34:45,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-01-11 05:34:45,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:46,021 INFO L225 Difference]: With dead ends: 114303 [2022-01-11 05:34:46,021 INFO L226 Difference]: Without dead ends: 57160 [2022-01-11 05:34:46,058 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 05:34:46,059 INFO L933 BasicCegarLoop]: 4693 mSDtfsCounter, 9365 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9365 SdHoareTripleChecker+Valid, 4719 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:46,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9365 Valid, 4719 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:46,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57160 states. [2022-01-11 05:34:47,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57160 to 57160. [2022-01-11 05:34:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57160 states, 57155 states have (on average 1.7777972180911557) internal successors, (101610), 57159 states have internal predecessors, (101610), 0 states have call successors, (0), 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 05:34:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57160 states to 57160 states and 101610 transitions. [2022-01-11 05:34:47,730 INFO L78 Accepts]: Start accepts. Automaton has 57160 states and 101610 transitions. Word has length 124 [2022-01-11 05:34:47,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:47,730 INFO L470 AbstractCegarLoop]: Abstraction has 57160 states and 101610 transitions. [2022-01-11 05:34:47,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 05:34:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 57160 states and 101610 transitions. [2022-01-11 05:34:47,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-11 05:34:47,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:47,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:47,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:34:47,744 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:47,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:47,744 INFO L85 PathProgramCache]: Analyzing trace with hash -981903809, now seen corresponding path program 1 times [2022-01-11 05:34:47,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:47,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450663816] [2022-01-11 05:34:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:47,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:47,800 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 05:34:47,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:47,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450663816] [2022-01-11 05:34:47,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450663816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:47,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:47,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:34:47,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131035355] [2022-01-11 05:34:47,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:47,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:34:47,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:34:47,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:34:47,802 INFO L87 Difference]: Start difference. First operand 57160 states and 101610 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 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 05:34:49,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:49,437 INFO L93 Difference]: Finished difference Result 114291 states and 203185 transitions. [2022-01-11 05:34:49,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:34:49,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-01-11 05:34:49,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:49,542 INFO L225 Difference]: With dead ends: 114291 [2022-01-11 05:34:49,542 INFO L226 Difference]: Without dead ends: 57160 [2022-01-11 05:34:49,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:34:49,672 INFO L933 BasicCegarLoop]: 4684 mSDtfsCounter, 9352 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9352 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:49,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9352 Valid, 4734 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:34:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57160 states. [2022-01-11 05:34:51,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57160 to 57160. [2022-01-11 05:34:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57160 states, 57155 states have (on average 1.7777797218091156) internal successors, (101609), 57159 states have internal predecessors, (101609), 0 states have call successors, (0), 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 05:34:51,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57160 states to 57160 states and 101609 transitions. [2022-01-11 05:34:51,354 INFO L78 Accepts]: Start accepts. Automaton has 57160 states and 101609 transitions. Word has length 125 [2022-01-11 05:34:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:51,354 INFO L470 AbstractCegarLoop]: Abstraction has 57160 states and 101609 transitions. [2022-01-11 05:34:51,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 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 05:34:51,354 INFO L276 IsEmpty]: Start isEmpty. Operand 57160 states and 101609 transitions. [2022-01-11 05:34:51,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-11 05:34:51,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:51,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:51,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:34:51,367 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:51,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1630914872, now seen corresponding path program 1 times [2022-01-11 05:34:51,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:51,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377680947] [2022-01-11 05:34:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:51,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:51,417 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 05:34:51,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:51,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377680947] [2022-01-11 05:34:51,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377680947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:51,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:51,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:51,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258608573] [2022-01-11 05:34:51,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:51,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:34:51,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:51,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:34:51,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:34:51,419 INFO L87 Difference]: Start difference. First operand 57160 states and 101609 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 05:34:54,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:54,667 INFO L93 Difference]: Finished difference Result 165169 states and 292786 transitions. [2022-01-11 05:34:54,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:34:54,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-01-11 05:34:54,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:54,861 INFO L225 Difference]: With dead ends: 165169 [2022-01-11 05:34:54,861 INFO L226 Difference]: Without dead ends: 108046 [2022-01-11 05:34:54,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:34:54,910 INFO L933 BasicCegarLoop]: 4719 mSDtfsCounter, 12545 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12545 SdHoareTripleChecker+Valid, 8699 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:54,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12545 Valid, 8699 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:34:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108046 states. [2022-01-11 05:34:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108046 to 57160. [2022-01-11 05:34:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57160 states, 57155 states have (on average 1.7593736331029657) internal successors, (100557), 57159 states have internal predecessors, (100557), 0 states have call successors, (0), 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 05:34:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57160 states to 57160 states and 100557 transitions. [2022-01-11 05:34:57,164 INFO L78 Accepts]: Start accepts. Automaton has 57160 states and 100557 transitions. Word has length 126 [2022-01-11 05:34:57,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:57,164 INFO L470 AbstractCegarLoop]: Abstraction has 57160 states and 100557 transitions. [2022-01-11 05:34:57,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 05:34:57,164 INFO L276 IsEmpty]: Start isEmpty. Operand 57160 states and 100557 transitions. [2022-01-11 05:34:57,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-11 05:34:57,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:57,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:34:57,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:34:57,179 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:57,180 INFO L85 PathProgramCache]: Analyzing trace with hash -580692312, now seen corresponding path program 1 times [2022-01-11 05:34:57,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:57,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876277970] [2022-01-11 05:34:57,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:57,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:57,241 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 05:34:57,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:57,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876277970] [2022-01-11 05:34:57,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876277970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:57,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:57,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:34:57,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107713854] [2022-01-11 05:34:57,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:57,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:34:57,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:57,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:34:57,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:34:57,242 INFO L87 Difference]: Start difference. First operand 57160 states and 100557 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)