/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_spec14_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:30:57,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:30:57,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:30:57,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:30:57,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:30:57,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:30:57,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:30:57,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:30:57,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:30:57,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:30:57,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:30:57,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:30:57,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:30:57,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:30:57,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:30:57,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:30:57,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:30:57,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:30:57,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:30:57,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:30:57,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:30:57,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:30:57,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:30:57,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:30:57,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:30:57,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:30:57,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:30:57,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:30:57,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:30:57,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:30:57,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:30:57,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:30:57,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:30:57,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:30:57,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:30:57,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:30:57,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:30:57,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:30:57,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:30:57,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:30:57,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:30:57,665 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 05:30:57,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:30:57,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:30:57,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:30:57,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:30:57,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:30:57,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:30:57,680 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:30:57,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:30:57,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:30:57,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:30:57,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:30:57,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:30:57,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:30:57,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:30:57,681 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:30:57,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:30:57,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:57,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:30:57,682 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:30:57,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:30:57,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:30:57,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:30:57,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:30:57,683 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:30:57,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:30:57,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:30:57,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:30:57,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:30:57,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:30:57,944 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:30:57,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2022-01-11 05:30:57,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4665d3a/7dc1e54cc07f4ed49b183275820504ac/FLAG1b120c6d4 [2022-01-11 05:30:58,454 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:30:58,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2022-01-11 05:30:58,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4665d3a/7dc1e54cc07f4ed49b183275820504ac/FLAG1b120c6d4 [2022-01-11 05:30:58,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4665d3a/7dc1e54cc07f4ed49b183275820504ac [2022-01-11 05:30:58,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:30:58,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:30:58,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:58,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:30:58,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:30:58,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:58" (1/1) ... [2022-01-11 05:30:58,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612af96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:58, skipping insertion in model container [2022-01-11 05:30:58,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:58" (1/1) ... [2022-01-11 05:30:58,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:30:58,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:58,967 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_spec14_product20.cil.c[69987,70000] [2022-01-11 05:30:58,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:58,982 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:30:58,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:59,116 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_spec14_product20.cil.c[69987,70000] [2022-01-11 05:30:59,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:59,120 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:30:59,180 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_spec14_product20.cil.c[69987,70000] [2022-01-11 05:30:59,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:59,203 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:30:59,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59 WrapperNode [2022-01-11 05:30:59,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:59,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:59,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:30:59,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:30:59,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,572 INFO L137 Inliner]: procedures = 95, calls = 339, calls flagged for inlining = 191, calls inlined = 1331, statements flattened = 41544 [2022-01-11 05:30:59,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:59,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:30:59,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:30:59,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:30:59,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:30:59,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:31:00,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:31:00,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:31:00,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:31:00,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (1/1) ... [2022-01-11 05:31:00,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:31:00,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:31:00,381 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 05:31:00,388 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 05:31:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:31:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:31:00,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:31:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:31:00,604 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:31:00,605 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:31:12,929 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:31:12,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:31:12,972 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:31:12,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:12 BoogieIcfgContainer [2022-01-11 05:31:12,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:31:12,983 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:31:12,983 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:31:12,985 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:31:12,986 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:12" (1/1) ... [2022-01-11 05:31:14,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:14 BasicIcfg [2022-01-11 05:31:14,850 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:31:14,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:31:14,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:31:14,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:31:14,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:30:58" (1/4) ... [2022-01-11 05:31:14,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fb269a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:14, skipping insertion in model container [2022-01-11 05:31:14,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:59" (2/4) ... [2022-01-11 05:31:14,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fb269a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:31:14, skipping insertion in model container [2022-01-11 05:31:14,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:31:12" (3/4) ... [2022-01-11 05:31:14,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fb269a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:31:14, skipping insertion in model container [2022-01-11 05:31:14,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:31:14" (4/4) ... [2022-01-11 05:31:14,857 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product20.cil.cTransformedIcfg [2022-01-11 05:31:14,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:31:14,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:31:14,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:31:14,936 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 05:31:14,936 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:31:15,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 11846 states, 11840 states have (on average 1.8697635135135136) internal successors, (22138), 11845 states have internal predecessors, (22138), 0 states have call successors, (0), 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 05:31:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 05:31:15,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:15,270 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] [2022-01-11 05:31:15,270 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 05:31:15,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:15,275 INFO L85 PathProgramCache]: Analyzing trace with hash 524302269, now seen corresponding path program 1 times [2022-01-11 05:31:15,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:15,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913346542] [2022-01-11 05:31:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:15,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:15,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:15,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913346542] [2022-01-11 05:31:15,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913346542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:15,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:15,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:15,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742285191] [2022-01-11 05:31:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:15,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:15,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:15,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:15,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:15,665 INFO L87 Difference]: Start difference. First operand has 11846 states, 11840 states have (on average 1.8697635135135136) internal successors, (22138), 11845 states have internal predecessors, (22138), 0 states have call successors, (0), 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 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 05:31:16,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:16,291 INFO L93 Difference]: Finished difference Result 28445 states and 53165 transitions. [2022-01-11 05:31:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:16,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-01-11 05:31:16,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:16,374 INFO L225 Difference]: With dead ends: 28445 [2022-01-11 05:31:16,374 INFO L226 Difference]: Without dead ends: 16598 [2022-01-11 05:31:16,401 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 05:31:16,405 INFO L933 BasicCegarLoop]: 31024 mSDtfsCounter, 22100 mSDsluCounter, 8917 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22100 SdHoareTripleChecker+Valid, 39941 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:16,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22100 Valid, 39941 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16598 states. [2022-01-11 05:31:16,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16598 to 11834. [2022-01-11 05:31:16,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11834 states, 11829 states have (on average 1.8692197142615605) internal successors, (22111), 11833 states have internal predecessors, (22111), 0 states have call successors, (0), 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 05:31:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11834 states to 11834 states and 22111 transitions. [2022-01-11 05:31:16,835 INFO L78 Accepts]: Start accepts. Automaton has 11834 states and 22111 transitions. Word has length 30 [2022-01-11 05:31:16,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:16,835 INFO L470 AbstractCegarLoop]: Abstraction has 11834 states and 22111 transitions. [2022-01-11 05:31:16,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 05:31:16,836 INFO L276 IsEmpty]: Start isEmpty. Operand 11834 states and 22111 transitions. [2022-01-11 05:31:16,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-11 05:31:16,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:16,842 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] [2022-01-11 05:31:16,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:31:16,842 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 05:31:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash 289876027, now seen corresponding path program 1 times [2022-01-11 05:31:16,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:16,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499795383] [2022-01-11 05:31:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:16,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:16,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:16,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499795383] [2022-01-11 05:31:16,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499795383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:16,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:16,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:16,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108608328] [2022-01-11 05:31:16,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:16,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:16,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:16,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:16,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:16,951 INFO L87 Difference]: Start difference. First operand 11834 states and 22111 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 05:31:17,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:17,499 INFO L93 Difference]: Finished difference Result 28347 states and 52967 transitions. [2022-01-11 05:31:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2022-01-11 05:31:17,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:17,558 INFO L225 Difference]: With dead ends: 28347 [2022-01-11 05:31:17,559 INFO L226 Difference]: Without dead ends: 16562 [2022-01-11 05:31:17,581 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 05:31:17,582 INFO L933 BasicCegarLoop]: 30881 mSDtfsCounter, 21999 mSDsluCounter, 8854 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21999 SdHoareTripleChecker+Valid, 39735 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:17,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21999 Valid, 39735 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:31:17,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16562 states. [2022-01-11 05:31:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16562 to 11834. [2022-01-11 05:31:17,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11834 states, 11829 states have (on average 1.8671062642657874) internal successors, (22086), 11833 states have internal predecessors, (22086), 0 states have call successors, (0), 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 05:31:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11834 states to 11834 states and 22086 transitions. [2022-01-11 05:31:17,885 INFO L78 Accepts]: Start accepts. Automaton has 11834 states and 22086 transitions. Word has length 35 [2022-01-11 05:31:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:17,887 INFO L470 AbstractCegarLoop]: Abstraction has 11834 states and 22086 transitions. [2022-01-11 05:31:17,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 05:31:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 11834 states and 22086 transitions. [2022-01-11 05:31:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 05:31:17,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:17,898 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] [2022-01-11 05:31:17,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:31:17,898 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 05:31:17,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:17,899 INFO L85 PathProgramCache]: Analyzing trace with hash 249686866, now seen corresponding path program 1 times [2022-01-11 05:31:17,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:17,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164307707] [2022-01-11 05:31:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:17,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:18,034 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 05:31:18,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:18,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164307707] [2022-01-11 05:31:18,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164307707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:18,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:18,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:18,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801320531] [2022-01-11 05:31:18,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:18,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:18,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:18,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:18,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:18,038 INFO L87 Difference]: Start difference. First operand 11834 states and 22086 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 05:31:19,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:19,305 INFO L93 Difference]: Finished difference Result 49569 states and 92588 transitions. [2022-01-11 05:31:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:31:19,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-01-11 05:31:19,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:19,395 INFO L225 Difference]: With dead ends: 49569 [2022-01-11 05:31:19,395 INFO L226 Difference]: Without dead ends: 37763 [2022-01-11 05:31:19,418 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 05:31:19,421 INFO L933 BasicCegarLoop]: 61688 mSDtfsCounter, 65959 mSDsluCounter, 57441 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65959 SdHoareTripleChecker+Valid, 119129 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:19,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65959 Valid, 119129 Invalid, 60 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:19,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37763 states. [2022-01-11 05:31:19,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37763 to 11816. [2022-01-11 05:31:19,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11816 states, 11811 states have (on average 1.8679197358394717) internal successors, (22062), 11815 states have internal predecessors, (22062), 0 states have call successors, (0), 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 05:31:19,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11816 states to 11816 states and 22062 transitions. [2022-01-11 05:31:19,874 INFO L78 Accepts]: Start accepts. Automaton has 11816 states and 22062 transitions. Word has length 38 [2022-01-11 05:31:19,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:19,874 INFO L470 AbstractCegarLoop]: Abstraction has 11816 states and 22062 transitions. [2022-01-11 05:31:19,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 05:31:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 11816 states and 22062 transitions. [2022-01-11 05:31:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 05:31:19,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:19,877 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] [2022-01-11 05:31:19,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:31:19,877 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 05:31:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:19,878 INFO L85 PathProgramCache]: Analyzing trace with hash -228044437, now seen corresponding path program 1 times [2022-01-11 05:31:19,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:19,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519372716] [2022-01-11 05:31:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:19,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:19,960 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 05:31:19,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:19,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519372716] [2022-01-11 05:31:19,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519372716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:19,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:19,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:19,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923290891] [2022-01-11 05:31:19,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:19,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:19,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:19,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:19,962 INFO L87 Difference]: Start difference. First operand 11816 states and 22062 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 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 05:31:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:20,968 INFO L93 Difference]: Finished difference Result 47123 states and 88027 transitions. [2022-01-11 05:31:20,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:31:20,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-11 05:31:20,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:21,051 INFO L225 Difference]: With dead ends: 47123 [2022-01-11 05:31:21,052 INFO L226 Difference]: Without dead ends: 35329 [2022-01-11 05:31:21,076 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 05:31:21,076 INFO L933 BasicCegarLoop]: 35168 mSDtfsCounter, 65995 mSDsluCounter, 65931 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65995 SdHoareTripleChecker+Valid, 101099 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:21,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65995 Valid, 101099 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35329 states. [2022-01-11 05:31:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35329 to 11820. [2022-01-11 05:31:21,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11820 states, 11815 states have (on average 1.86754126110876) internal successors, (22065), 11819 states have internal predecessors, (22065), 0 states have call successors, (0), 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 05:31:21,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11820 states to 11820 states and 22065 transitions. [2022-01-11 05:31:21,585 INFO L78 Accepts]: Start accepts. Automaton has 11820 states and 22065 transitions. Word has length 40 [2022-01-11 05:31:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:21,585 INFO L470 AbstractCegarLoop]: Abstraction has 11820 states and 22065 transitions. [2022-01-11 05:31:21,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 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 05:31:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 11820 states and 22065 transitions. [2022-01-11 05:31:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 05:31:21,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:21,587 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] [2022-01-11 05:31:21,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:31:21,587 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:21,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:21,588 INFO L85 PathProgramCache]: Analyzing trace with hash -482780982, now seen corresponding path program 1 times [2022-01-11 05:31:21,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:21,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675536068] [2022-01-11 05:31:21,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:21,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:21,689 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 05:31:21,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:21,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675536068] [2022-01-11 05:31:21,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675536068] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:21,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:21,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:31:21,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313861525] [2022-01-11 05:31:21,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:21,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:31:21,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:31:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:31:21,691 INFO L87 Difference]: Start difference. First operand 11820 states and 22065 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 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 05:31:22,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:22,855 INFO L93 Difference]: Finished difference Result 47339 states and 88410 transitions. [2022-01-11 05:31:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:31:22,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-11 05:31:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:22,928 INFO L225 Difference]: With dead ends: 47339 [2022-01-11 05:31:22,929 INFO L226 Difference]: Without dead ends: 35534 [2022-01-11 05:31:22,943 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 05:31:22,944 INFO L933 BasicCegarLoop]: 66342 mSDtfsCounter, 92628 mSDsluCounter, 88813 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92628 SdHoareTripleChecker+Valid, 155155 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:22,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92628 Valid, 155155 Invalid, 46 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:22,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35534 states. [2022-01-11 05:31:23,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35534 to 11812. [2022-01-11 05:31:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11812 states, 11807 states have (on average 1.867790293893453) internal successors, (22053), 11811 states have internal predecessors, (22053), 0 states have call successors, (0), 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 05:31:23,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11812 states to 11812 states and 22053 transitions. [2022-01-11 05:31:23,356 INFO L78 Accepts]: Start accepts. Automaton has 11812 states and 22053 transitions. Word has length 40 [2022-01-11 05:31:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:23,358 INFO L470 AbstractCegarLoop]: Abstraction has 11812 states and 22053 transitions. [2022-01-11 05:31:23,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 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 05:31:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 11812 states and 22053 transitions. [2022-01-11 05:31:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 05:31:23,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:23,358 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] [2022-01-11 05:31:23,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:31:23,359 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:23,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:23,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1968839417, now seen corresponding path program 1 times [2022-01-11 05:31:23,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:23,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839201527] [2022-01-11 05:31:23,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:23,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:23,411 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 05:31:23,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:23,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839201527] [2022-01-11 05:31:23,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839201527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:23,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:23,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:23,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678064764] [2022-01-11 05:31:23,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:23,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:23,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:23,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:23,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:23,413 INFO L87 Difference]: Start difference. First operand 11812 states and 22053 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 05:31:24,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:24,113 INFO L93 Difference]: Finished difference Result 33046 states and 61721 transitions. [2022-01-11 05:31:24,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:24,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-01-11 05:31:24,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:24,161 INFO L225 Difference]: With dead ends: 33046 [2022-01-11 05:31:24,161 INFO L226 Difference]: Without dead ends: 21262 [2022-01-11 05:31:24,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:24,180 INFO L933 BasicCegarLoop]: 22015 mSDtfsCounter, 61706 mSDsluCounter, 26518 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61706 SdHoareTripleChecker+Valid, 48533 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:24,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61706 Valid, 48533 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:24,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21262 states. [2022-01-11 05:31:24,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21262 to 11814. [2022-01-11 05:31:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11814 states, 11809 states have (on average 1.867558641713947) internal successors, (22054), 11813 states have internal predecessors, (22054), 0 states have call successors, (0), 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 05:31:24,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11814 states to 11814 states and 22054 transitions. [2022-01-11 05:31:24,723 INFO L78 Accepts]: Start accepts. Automaton has 11814 states and 22054 transitions. Word has length 41 [2022-01-11 05:31:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:24,723 INFO L470 AbstractCegarLoop]: Abstraction has 11814 states and 22054 transitions. [2022-01-11 05:31:24,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 05:31:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 11814 states and 22054 transitions. [2022-01-11 05:31:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:31:24,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:24,726 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] [2022-01-11 05:31:24,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:31:24,726 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:24,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:24,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1360423684, now seen corresponding path program 1 times [2022-01-11 05:31:24,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:24,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152179848] [2022-01-11 05:31:24,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:24,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:24,809 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 05:31:24,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:24,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152179848] [2022-01-11 05:31:24,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152179848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:24,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:24,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:31:24,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82091914] [2022-01-11 05:31:24,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:24,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:24,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:24,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:24,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:24,811 INFO L87 Difference]: Start difference. First operand 11814 states and 22054 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 05:31:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:28,348 INFO L93 Difference]: Finished difference Result 33557 states and 62670 transitions. [2022-01-11 05:31:28,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:31:28,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-01-11 05:31:28,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:28,382 INFO L225 Difference]: With dead ends: 33557 [2022-01-11 05:31:28,383 INFO L226 Difference]: Without dead ends: 21787 [2022-01-11 05:31:28,395 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 05:31:28,398 INFO L933 BasicCegarLoop]: 22053 mSDtfsCounter, 59050 mSDsluCounter, 18471 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59050 SdHoareTripleChecker+Valid, 40524 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:28,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59050 Valid, 40524 Invalid, 3047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [664 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-11 05:31:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21787 states. [2022-01-11 05:31:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21787 to 11814. [2022-01-11 05:31:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11814 states, 11809 states have (on average 1.8418155644000338) internal successors, (21750), 11813 states have internal predecessors, (21750), 0 states have call successors, (0), 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 05:31:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11814 states to 11814 states and 21750 transitions. [2022-01-11 05:31:28,839 INFO L78 Accepts]: Start accepts. Automaton has 11814 states and 21750 transitions. Word has length 42 [2022-01-11 05:31:28,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:28,839 INFO L470 AbstractCegarLoop]: Abstraction has 11814 states and 21750 transitions. [2022-01-11 05:31:28,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 05:31:28,839 INFO L276 IsEmpty]: Start isEmpty. Operand 11814 states and 21750 transitions. [2022-01-11 05:31:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:31:28,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:28,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:28,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:31:28,840 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:28,841 INFO L85 PathProgramCache]: Analyzing trace with hash 788481868, now seen corresponding path program 1 times [2022-01-11 05:31:28,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:28,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567417150] [2022-01-11 05:31:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:28,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:28,905 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 05:31:28,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:28,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567417150] [2022-01-11 05:31:28,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567417150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:28,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:28,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:28,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398462090] [2022-01-11 05:31:28,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:28,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:28,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:28,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:28,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:28,907 INFO L87 Difference]: Start difference. First operand 11814 states and 21750 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:37,440 INFO L93 Difference]: Finished difference Result 140250 states and 261140 transitions. [2022-01-11 05:31:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:31:37,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-11 05:31:37,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:37,628 INFO L225 Difference]: With dead ends: 140250 [2022-01-11 05:31:37,628 INFO L226 Difference]: Without dead ends: 107793 [2022-01-11 05:31:37,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-01-11 05:31:37,666 INFO L933 BasicCegarLoop]: 22033 mSDtfsCounter, 308292 mSDsluCounter, 174686 mSDsCounter, 0 mSdLazyCounter, 4043 mSolverCounterSat, 1499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308292 SdHoareTripleChecker+Valid, 196719 SdHoareTripleChecker+Invalid, 5542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1499 IncrementalHoareTripleChecker+Valid, 4043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:37,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308292 Valid, 196719 Invalid, 5542 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1499 Valid, 4043 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-11 05:31:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107793 states. [2022-01-11 05:31:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107793 to 18870. [2022-01-11 05:31:38,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18870 states, 18865 states have (on average 1.8407103100980653) internal successors, (34725), 18869 states have internal predecessors, (34725), 0 states have call successors, (0), 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 05:31:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18870 states to 18870 states and 34725 transitions. [2022-01-11 05:31:38,972 INFO L78 Accepts]: Start accepts. Automaton has 18870 states and 34725 transitions. Word has length 46 [2022-01-11 05:31:38,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:38,973 INFO L470 AbstractCegarLoop]: Abstraction has 18870 states and 34725 transitions. [2022-01-11 05:31:38,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:31:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 18870 states and 34725 transitions. [2022-01-11 05:31:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-11 05:31:38,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:38,974 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] [2022-01-11 05:31:38,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:31:38,974 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 05:31:38,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:38,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1756168281, now seen corresponding path program 1 times [2022-01-11 05:31:38,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:38,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883972512] [2022-01-11 05:31:38,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:38,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:39,037 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 05:31:39,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:39,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883972512] [2022-01-11 05:31:39,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883972512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:39,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:39,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:39,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092148309] [2022-01-11 05:31:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:39,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:39,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:39,042 INFO L87 Difference]: Start difference. First operand 18870 states and 34725 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 05:31:39,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:39,480 INFO L93 Difference]: Finished difference Result 30642 states and 56389 transitions. [2022-01-11 05:31:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:39,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2022-01-11 05:31:39,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:39,497 INFO L225 Difference]: With dead ends: 30642 [2022-01-11 05:31:39,497 INFO L226 Difference]: Without dead ends: 11774 [2022-01-11 05:31:39,514 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 05:31:39,515 INFO L933 BasicCegarLoop]: 21671 mSDtfsCounter, 38893 mSDsluCounter, 17411 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38893 SdHoareTripleChecker+Valid, 39082 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:39,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38893 Valid, 39082 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:39,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11774 states. [2022-01-11 05:31:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11774 to 11774. [2022-01-11 05:31:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11774 states, 11772 states have (on average 1.8391097519537887) internal successors, (21650), 11773 states have internal predecessors, (21650), 0 states have call successors, (0), 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 05:31:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11774 states to 11774 states and 21650 transitions. [2022-01-11 05:31:40,057 INFO L78 Accepts]: Start accepts. Automaton has 11774 states and 21650 transitions. Word has length 49 [2022-01-11 05:31:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:40,057 INFO L470 AbstractCegarLoop]: Abstraction has 11774 states and 21650 transitions. [2022-01-11 05:31:40,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 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 05:31:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 11774 states and 21650 transitions. [2022-01-11 05:31:40,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 05:31:40,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:40,069 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] [2022-01-11 05:31:40,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:31:40,069 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:40,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:40,069 INFO L85 PathProgramCache]: Analyzing trace with hash -945692633, now seen corresponding path program 1 times [2022-01-11 05:31:40,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:40,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002812560] [2022-01-11 05:31:40,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:40,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:40,147 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 05:31:40,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:40,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002812560] [2022-01-11 05:31:40,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002812560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:40,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:40,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:31:40,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361430793] [2022-01-11 05:31:40,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:40,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:40,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:40,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:40,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:40,149 INFO L87 Difference]: Start difference. First operand 11774 states and 21650 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 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 05:31:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:40,688 INFO L93 Difference]: Finished difference Result 16508 states and 30329 transitions. [2022-01-11 05:31:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:31:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2022-01-11 05:31:40,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:40,705 INFO L225 Difference]: With dead ends: 16508 [2022-01-11 05:31:40,705 INFO L226 Difference]: Without dead ends: 11768 [2022-01-11 05:31:40,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:31:40,712 INFO L933 BasicCegarLoop]: 21638 mSDtfsCounter, 25871 mSDsluCounter, 47724 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25871 SdHoareTripleChecker+Valid, 69362 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:40,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25871 Valid, 69362 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:40,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11768 states. [2022-01-11 05:31:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11768 to 11768. [2022-01-11 05:31:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11768 states, 11766 states have (on average 1.8389427163012069) internal successors, (21637), 11767 states have internal predecessors, (21637), 0 states have call successors, (0), 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 05:31:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11768 states to 11768 states and 21637 transitions. [2022-01-11 05:31:41,105 INFO L78 Accepts]: Start accepts. Automaton has 11768 states and 21637 transitions. Word has length 104 [2022-01-11 05:31:41,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:41,106 INFO L470 AbstractCegarLoop]: Abstraction has 11768 states and 21637 transitions. [2022-01-11 05:31:41,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 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 05:31:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 11768 states and 21637 transitions. [2022-01-11 05:31:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 05:31:41,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:41,123 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] [2022-01-11 05:31:41,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:31:41,124 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:41,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:41,124 INFO L85 PathProgramCache]: Analyzing trace with hash 677005322, now seen corresponding path program 1 times [2022-01-11 05:31:41,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:41,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045550780] [2022-01-11 05:31:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:41,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:41,221 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 05:31:41,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:41,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045550780] [2022-01-11 05:31:41,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045550780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:41,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:41,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:31:41,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626279895] [2022-01-11 05:31:41,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:41,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:31:41,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:41,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:31:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:41,223 INFO L87 Difference]: Start difference. First operand 11768 states and 21637 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 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 05:31:41,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:41,701 INFO L93 Difference]: Finished difference Result 16502 states and 30316 transitions. [2022-01-11 05:31:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:31:41,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-11 05:31:41,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:41,719 INFO L225 Difference]: With dead ends: 16502 [2022-01-11 05:31:41,719 INFO L226 Difference]: Without dead ends: 11762 [2022-01-11 05:31:41,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:31:41,729 INFO L933 BasicCegarLoop]: 21624 mSDtfsCounter, 25861 mSDsluCounter, 60631 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25861 SdHoareTripleChecker+Valid, 82255 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:41,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25861 Valid, 82255 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:41,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11762 states. [2022-01-11 05:31:42,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11762 to 11762. [2022-01-11 05:31:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11762 states, 11760 states have (on average 1.8387755102040817) internal successors, (21624), 11761 states have internal predecessors, (21624), 0 states have call successors, (0), 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 05:31:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11762 states to 11762 states and 21624 transitions. [2022-01-11 05:31:42,185 INFO L78 Accepts]: Start accepts. Automaton has 11762 states and 21624 transitions. Word has length 105 [2022-01-11 05:31:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:42,185 INFO L470 AbstractCegarLoop]: Abstraction has 11762 states and 21624 transitions. [2022-01-11 05:31:42,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 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 05:31:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 11762 states and 21624 transitions. [2022-01-11 05:31:42,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 05:31:42,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:42,196 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] [2022-01-11 05:31:42,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:31:42,196 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:42,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash 605897384, now seen corresponding path program 1 times [2022-01-11 05:31:42,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:42,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688345615] [2022-01-11 05:31:42,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:42,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:42,268 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 05:31:42,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:42,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688345615] [2022-01-11 05:31:42,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688345615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:42,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:42,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 05:31:42,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889582916] [2022-01-11 05:31:42,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:42,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:31:42,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:42,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:31:42,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:31:42,270 INFO L87 Difference]: Start difference. First operand 11762 states and 21624 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 05:31:42,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:42,767 INFO L93 Difference]: Finished difference Result 16496 states and 30303 transitions. [2022-01-11 05:31:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:31:42,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-11 05:31:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:42,785 INFO L225 Difference]: With dead ends: 16496 [2022-01-11 05:31:42,785 INFO L226 Difference]: Without dead ends: 11762 [2022-01-11 05:31:42,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:31:42,794 INFO L933 BasicCegarLoop]: 21604 mSDtfsCounter, 60605 mSDsluCounter, 56116 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60605 SdHoareTripleChecker+Valid, 77720 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:42,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60605 Valid, 77720 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:42,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11762 states. [2022-01-11 05:31:43,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11762 to 11762. [2022-01-11 05:31:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11762 states, 11760 states have (on average 1.838690476190476) internal successors, (21623), 11761 states have internal predecessors, (21623), 0 states have call successors, (0), 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 05:31:43,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11762 states to 11762 states and 21623 transitions. [2022-01-11 05:31:43,178 INFO L78 Accepts]: Start accepts. Automaton has 11762 states and 21623 transitions. Word has length 105 [2022-01-11 05:31:43,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:43,178 INFO L470 AbstractCegarLoop]: Abstraction has 11762 states and 21623 transitions. [2022-01-11 05:31:43,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 05:31:43,178 INFO L276 IsEmpty]: Start isEmpty. Operand 11762 states and 21623 transitions. [2022-01-11 05:31:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-11 05:31:43,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:43,188 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] [2022-01-11 05:31:43,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:31:43,188 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:43,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1786793535, now seen corresponding path program 1 times [2022-01-11 05:31:43,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:43,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030870406] [2022-01-11 05:31:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:43,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:43,340 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 05:31:43,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:43,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030870406] [2022-01-11 05:31:43,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030870406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:43,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:43,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:31:43,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098959675] [2022-01-11 05:31:43,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:43,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:43,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:43,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:43,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:43,341 INFO L87 Difference]: Start difference. First operand 11762 states and 21623 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 05:31:44,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:44,775 INFO L93 Difference]: Finished difference Result 32068 states and 59121 transitions. [2022-01-11 05:31:44,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:44,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-11 05:31:44,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:44,804 INFO L225 Difference]: With dead ends: 32068 [2022-01-11 05:31:44,804 INFO L226 Difference]: Without dead ends: 22651 [2022-01-11 05:31:44,811 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 05:31:44,812 INFO L933 BasicCegarLoop]: 30150 mSDtfsCounter, 21342 mSDsluCounter, 20177 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21342 SdHoareTripleChecker+Valid, 50327 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:44,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21342 Valid, 50327 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:31:44,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22651 states. [2022-01-11 05:31:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22651 to 17635. [2022-01-11 05:31:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17635 states, 17633 states have (on average 1.834117847218284) internal successors, (32341), 17634 states have internal predecessors, (32341), 0 states have call successors, (0), 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 05:31:45,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17635 states to 17635 states and 32341 transitions. [2022-01-11 05:31:45,527 INFO L78 Accepts]: Start accepts. Automaton has 17635 states and 32341 transitions. Word has length 106 [2022-01-11 05:31:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:45,527 INFO L470 AbstractCegarLoop]: Abstraction has 17635 states and 32341 transitions. [2022-01-11 05:31:45,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 05:31:45,528 INFO L276 IsEmpty]: Start isEmpty. Operand 17635 states and 32341 transitions. [2022-01-11 05:31:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-11 05:31:45,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:45,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:45,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:31:45,541 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:45,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:45,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1100328453, now seen corresponding path program 1 times [2022-01-11 05:31:45,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:45,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997481279] [2022-01-11 05:31:45,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:45,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:45,587 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 05:31:45,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:45,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997481279] [2022-01-11 05:31:45,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997481279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:45,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:45,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:31:45,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243232678] [2022-01-11 05:31:45,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:45,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:45,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:45,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:45,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:45,588 INFO L87 Difference]: Start difference. First operand 17635 states and 32341 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 05:31:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:46,766 INFO L93 Difference]: Finished difference Result 44886 states and 82476 transitions. [2022-01-11 05:31:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:46,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-01-11 05:31:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:46,815 INFO L225 Difference]: With dead ends: 44886 [2022-01-11 05:31:46,815 INFO L226 Difference]: Without dead ends: 27960 [2022-01-11 05:31:46,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:31:46,840 INFO L933 BasicCegarLoop]: 22420 mSDtfsCounter, 21154 mSDsluCounter, 19351 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21154 SdHoareTripleChecker+Valid, 41771 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:46,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21154 Valid, 41771 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:46,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27960 states. [2022-01-11 05:31:47,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27960 to 27956. [2022-01-11 05:31:47,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27956 states, 27954 states have (on average 1.8368033197395721) internal successors, (51346), 27955 states have internal predecessors, (51346), 0 states have call successors, (0), 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 05:31:48,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27956 states to 27956 states and 51346 transitions. [2022-01-11 05:31:48,098 INFO L78 Accepts]: Start accepts. Automaton has 27956 states and 51346 transitions. Word has length 168 [2022-01-11 05:31:48,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:48,098 INFO L470 AbstractCegarLoop]: Abstraction has 27956 states and 51346 transitions. [2022-01-11 05:31:48,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 05:31:48,098 INFO L276 IsEmpty]: Start isEmpty. Operand 27956 states and 51346 transitions. [2022-01-11 05:31:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-11 05:31:48,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:48,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:48,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:31:48,118 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:48,118 INFO L85 PathProgramCache]: Analyzing trace with hash 775285696, now seen corresponding path program 1 times [2022-01-11 05:31:48,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:48,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591443181] [2022-01-11 05:31:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:48,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:48,218 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 05:31:48,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:48,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591443181] [2022-01-11 05:31:48,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591443181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:48,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:48,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:31:48,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810266663] [2022-01-11 05:31:48,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:48,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:48,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:48,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:48,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:48,220 INFO L87 Difference]: Start difference. First operand 27956 states and 51346 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 05:31:50,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:50,283 INFO L93 Difference]: Finished difference Result 75643 states and 139103 transitions. [2022-01-11 05:31:50,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:31:50,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-01-11 05:31:50,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:50,354 INFO L225 Difference]: With dead ends: 75643 [2022-01-11 05:31:50,354 INFO L226 Difference]: Without dead ends: 48398 [2022-01-11 05:31:50,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:31:50,375 INFO L933 BasicCegarLoop]: 21554 mSDtfsCounter, 21069 mSDsluCounter, 19351 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21069 SdHoareTripleChecker+Valid, 40905 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:50,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21069 Valid, 40905 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:50,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48398 states. [2022-01-11 05:31:52,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48398 to 48394. [2022-01-11 05:31:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48394 states, 48392 states have (on average 1.8383617126797818) internal successors, (88962), 48393 states have internal predecessors, (88962), 0 states have call successors, (0), 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 05:31:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48394 states to 48394 states and 88962 transitions. [2022-01-11 05:31:52,505 INFO L78 Accepts]: Start accepts. Automaton has 48394 states and 88962 transitions. Word has length 168 [2022-01-11 05:31:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:52,506 INFO L470 AbstractCegarLoop]: Abstraction has 48394 states and 88962 transitions. [2022-01-11 05:31:52,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 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 05:31:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 48394 states and 88962 transitions. [2022-01-11 05:31:52,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-01-11 05:31:52,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:52,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:52,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:31:52,537 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:31:52,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:52,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1400198616, now seen corresponding path program 1 times [2022-01-11 05:31:52,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:52,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093912813] [2022-01-11 05:31:52,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:52,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:52,586 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 05:31:52,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:52,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093912813] [2022-01-11 05:31:52,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093912813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:52,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:52,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:31:52,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628800781] [2022-01-11 05:31:52,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:52,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:31:52,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:52,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:31:52,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:31:52,592 INFO L87 Difference]: Start difference. First operand 48394 states and 88962 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)