/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:57:04,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:57:04,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:57:04,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:57:04,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:57:04,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:57:04,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:57:04,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:57:04,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:57:04,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:57:04,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:57:04,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:57:04,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:57:04,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:57:04,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:57:04,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:57:04,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:57:04,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:57:04,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:57:04,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:57:04,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:57:04,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:57:04,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:57:04,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:57:04,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:57:04,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:57:04,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:57:04,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:57:04,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:57:04,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:57:04,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:57:04,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:57:04,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:57:04,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:57:04,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:57:04,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:57:04,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:57:04,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:57:04,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:57:04,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:57:04,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:57:04,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:57:04,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:57:04,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:57:04,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:57:04,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:57:04,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:57:04,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:57:04,917 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:57:04,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:57:04,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:57:04,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:57:04,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:57:04,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:57:04,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:57:04,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:57:04,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:57:04,921 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:57:04,921 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:57:05,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:57:05,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:57:05,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:57:05,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:57:05,094 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:57:05,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c [2022-01-10 17:57:05,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05e2ff87c/99f839dcd922400f9c0911335bb471ce/FLAG5d8424e62 [2022-01-10 17:57:05,588 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:57:05,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c [2022-01-10 17:57:05,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05e2ff87c/99f839dcd922400f9c0911335bb471ce/FLAG5d8424e62 [2022-01-10 17:57:05,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05e2ff87c/99f839dcd922400f9c0911335bb471ce [2022-01-10 17:57:05,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:57:05,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:57:05,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:57:05,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:57:05,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:57:05,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:57:05" (1/1) ... [2022-01-10 17:57:05,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c46d96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:05, skipping insertion in model container [2022-01-10 17:57:05,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:57:05" (1/1) ... [2022-01-10 17:57:05,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:57:05,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:57:05,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c[33356,33369] [2022-01-10 17:57:06,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:57:06,103 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:57:06,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:57:06,173 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c[33356,33369] [2022-01-10 17:57:06,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:57:06,201 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:57:06,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product03.cil.c[33356,33369] [2022-01-10 17:57:06,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:57:06,300 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:57:06,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06 WrapperNode [2022-01-10 17:57:06,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:57:06,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:57:06,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:57:06,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:57:06,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,525 INFO L137 Inliner]: procedures = 92, calls = 342, calls flagged for inlining = 195, calls inlined = 628, statements flattened = 20683 [2022-01-10 17:57:06,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:57:06,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:57:06,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:57:06,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:57:06,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:57:06,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:57:06,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:57:06,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:57:06,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (1/1) ... [2022-01-10 17:57:06,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:57:06,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:57:06,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 17:57:06,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 17:57:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:57:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:57:07,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:57:07,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:57:07,155 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:57:07,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:57:13,694 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:57:13,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:57:13,738 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:57:13,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:57:13 BoogieIcfgContainer [2022-01-10 17:57:13,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:57:13,747 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:57:13,747 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:57:13,748 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:57:13,750 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:57:13" (1/1) ... [2022-01-10 17:57:14,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:57:14 BasicIcfg [2022-01-10 17:57:14,842 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:57:14,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:57:14,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:57:14,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:57:14,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:57:05" (1/4) ... [2022-01-10 17:57:14,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286094a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:57:14, skipping insertion in model container [2022-01-10 17:57:14,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:57:06" (2/4) ... [2022-01-10 17:57:14,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286094a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:57:14, skipping insertion in model container [2022-01-10 17:57:14,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:57:13" (3/4) ... [2022-01-10 17:57:14,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286094a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:57:14, skipping insertion in model container [2022-01-10 17:57:14,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:57:14" (4/4) ... [2022-01-10 17:57:14,849 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product03.cil.cTransformedIcfg [2022-01-10 17:57:14,855 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:57:14,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 17:57:14,910 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:57:14,914 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:57:14,914 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 17:57:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 5963 states, 5952 states have (on average 1.8758400537634408) internal successors, (11165), 5962 states have internal predecessors, (11165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 17:57:15,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:15,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:15,001 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:15,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash -151173626, now seen corresponding path program 1 times [2022-01-10 17:57:15,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:15,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990581683] [2022-01-10 17:57:15,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:15,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:15,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:15,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990581683] [2022-01-10 17:57:15,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990581683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:15,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:15,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:15,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215554804] [2022-01-10 17:57:15,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:15,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:15,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:15,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:15,527 INFO L87 Difference]: Start difference. First operand has 5963 states, 5952 states have (on average 1.8758400537634408) internal successors, (11165), 5962 states have internal predecessors, (11165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:16,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:16,827 INFO L93 Difference]: Finished difference Result 15120 states and 28308 transitions. [2022-01-10 17:57:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:16,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 17:57:16,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:16,875 INFO L225 Difference]: With dead ends: 15120 [2022-01-10 17:57:16,875 INFO L226 Difference]: Without dead ends: 10076 [2022-01-10 17:57:16,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:16,891 INFO L933 BasicCegarLoop]: 18258 mSDtfsCounter, 9688 mSDsluCounter, 8399 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9688 SdHoareTripleChecker+Valid, 26657 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:16,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9688 Valid, 26657 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:57:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2022-01-10 17:57:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 10020. [2022-01-10 17:57:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10020 states, 10010 states have (on average 1.854045954045954) internal successors, (18559), 10019 states have internal predecessors, (18559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10020 states to 10020 states and 18559 transitions. [2022-01-10 17:57:17,168 INFO L78 Accepts]: Start accepts. Automaton has 10020 states and 18559 transitions. Word has length 52 [2022-01-10 17:57:17,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:17,168 INFO L470 AbstractCegarLoop]: Abstraction has 10020 states and 18559 transitions. [2022-01-10 17:57:17,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:17,169 INFO L276 IsEmpty]: Start isEmpty. Operand 10020 states and 18559 transitions. [2022-01-10 17:57:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 17:57:17,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:17,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:17,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:57:17,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:17,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:17,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1591636709, now seen corresponding path program 1 times [2022-01-10 17:57:17,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:17,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453659485] [2022-01-10 17:57:17,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:17,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:17,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:17,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453659485] [2022-01-10 17:57:17,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453659485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:17,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:17,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:17,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264894493] [2022-01-10 17:57:17,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:17,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:17,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:17,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:17,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:17,248 INFO L87 Difference]: Start difference. First operand 10020 states and 18559 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:17,777 INFO L93 Difference]: Finished difference Result 19471 states and 36247 transitions. [2022-01-10 17:57:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:17,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 17:57:17,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:17,828 INFO L225 Difference]: With dead ends: 19471 [2022-01-10 17:57:17,829 INFO L226 Difference]: Without dead ends: 14720 [2022-01-10 17:57:17,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:17,843 INFO L933 BasicCegarLoop]: 17412 mSDtfsCounter, 10727 mSDsluCounter, 8759 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10727 SdHoareTripleChecker+Valid, 26171 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:17,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10727 Valid, 26171 Invalid, 220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 17:57:17,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14720 states. [2022-01-10 17:57:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14720 to 14692. [2022-01-10 17:57:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14692 states, 14682 states have (on average 1.8598283612586841) internal successors, (27306), 14691 states have internal predecessors, (27306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:18,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14692 states to 14692 states and 27306 transitions. [2022-01-10 17:57:18,228 INFO L78 Accepts]: Start accepts. Automaton has 14692 states and 27306 transitions. Word has length 52 [2022-01-10 17:57:18,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:18,230 INFO L470 AbstractCegarLoop]: Abstraction has 14692 states and 27306 transitions. [2022-01-10 17:57:18,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 14692 states and 27306 transitions. [2022-01-10 17:57:18,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 17:57:18,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:18,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:18,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:57:18,240 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:18,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1815826906, now seen corresponding path program 1 times [2022-01-10 17:57:18,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:18,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143939276] [2022-01-10 17:57:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:18,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:18,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:18,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143939276] [2022-01-10 17:57:18,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143939276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:18,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:18,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:18,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665389392] [2022-01-10 17:57:18,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:18,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:18,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:18,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:18,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:18,352 INFO L87 Difference]: Start difference. First operand 14692 states and 27306 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:18,775 INFO L93 Difference]: Finished difference Result 41769 states and 77722 transitions. [2022-01-10 17:57:18,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:18,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 17:57:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:18,836 INFO L225 Difference]: With dead ends: 41769 [2022-01-10 17:57:18,837 INFO L226 Difference]: Without dead ends: 28165 [2022-01-10 17:57:18,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:18,864 INFO L933 BasicCegarLoop]: 11032 mSDtfsCounter, 9917 mSDsluCounter, 10754 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9917 SdHoareTripleChecker+Valid, 21786 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:18,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9917 Valid, 21786 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:57:18,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28165 states. [2022-01-10 17:57:19,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28165 to 27832. [2022-01-10 17:57:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27832 states, 27822 states have (on average 1.861764071598016) internal successors, (51798), 27831 states have internal predecessors, (51798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:19,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27832 states to 27832 states and 51798 transitions. [2022-01-10 17:57:19,441 INFO L78 Accepts]: Start accepts. Automaton has 27832 states and 51798 transitions. Word has length 52 [2022-01-10 17:57:19,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:19,443 INFO L470 AbstractCegarLoop]: Abstraction has 27832 states and 51798 transitions. [2022-01-10 17:57:19,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 27832 states and 51798 transitions. [2022-01-10 17:57:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 17:57:19,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:19,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:19,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:57:19,446 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:19,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:19,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1029456481, now seen corresponding path program 1 times [2022-01-10 17:57:19,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:19,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221708165] [2022-01-10 17:57:19,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:19,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:19,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:19,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221708165] [2022-01-10 17:57:19,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221708165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:19,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:19,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 17:57:19,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760295377] [2022-01-10 17:57:19,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:19,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 17:57:19,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:19,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 17:57:19,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 17:57:19,542 INFO L87 Difference]: Start difference. First operand 27832 states and 51798 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:20,658 INFO L93 Difference]: Finished difference Result 111019 states and 206600 transitions. [2022-01-10 17:57:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:57:20,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 17:57:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:20,839 INFO L225 Difference]: With dead ends: 111019 [2022-01-10 17:57:20,839 INFO L226 Difference]: Without dead ends: 83214 [2022-01-10 17:57:20,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:57:20,908 INFO L933 BasicCegarLoop]: 21521 mSDtfsCounter, 32134 mSDsluCounter, 32311 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32134 SdHoareTripleChecker+Valid, 53832 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:20,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32134 Valid, 53832 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:57:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83214 states. [2022-01-10 17:57:21,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83214 to 27852. [2022-01-10 17:57:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27852 states, 27842 states have (on average 1.8611450326844337) internal successors, (51818), 27851 states have internal predecessors, (51818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27852 states to 27852 states and 51818 transitions. [2022-01-10 17:57:21,994 INFO L78 Accepts]: Start accepts. Automaton has 27852 states and 51818 transitions. Word has length 52 [2022-01-10 17:57:21,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:21,995 INFO L470 AbstractCegarLoop]: Abstraction has 27852 states and 51818 transitions. [2022-01-10 17:57:21,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:21,995 INFO L276 IsEmpty]: Start isEmpty. Operand 27852 states and 51818 transitions. [2022-01-10 17:57:21,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 17:57:21,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:21,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:21,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:57:21,998 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:22,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:22,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1356447944, now seen corresponding path program 1 times [2022-01-10 17:57:22,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:22,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873451102] [2022-01-10 17:57:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:22,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:22,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:22,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873451102] [2022-01-10 17:57:22,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873451102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:22,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:22,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:22,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414337914] [2022-01-10 17:57:22,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:22,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:22,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:22,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:22,078 INFO L87 Difference]: Start difference. First operand 27852 states and 51818 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:22,721 INFO L93 Difference]: Finished difference Result 55553 states and 103352 transitions. [2022-01-10 17:57:22,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:22,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-10 17:57:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:22,780 INFO L225 Difference]: With dead ends: 55553 [2022-01-10 17:57:22,781 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 17:57:22,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:22,810 INFO L933 BasicCegarLoop]: 10722 mSDtfsCounter, 10714 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10714 SdHoareTripleChecker+Valid, 10730 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:22,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10714 Valid, 10730 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 17:57:23,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 17:57:23,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8604634375225584) internal successors, (51546), 27715 states have internal predecessors, (51546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:23,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51546 transitions. [2022-01-10 17:57:23,519 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51546 transitions. Word has length 53 [2022-01-10 17:57:23,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:23,519 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51546 transitions. [2022-01-10 17:57:23,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51546 transitions. [2022-01-10 17:57:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 17:57:23,521 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:23,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:23,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:57:23,521 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:23,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:23,521 INFO L85 PathProgramCache]: Analyzing trace with hash 48262240, now seen corresponding path program 1 times [2022-01-10 17:57:23,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:23,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638798710] [2022-01-10 17:57:23,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:23,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:23,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:23,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638798710] [2022-01-10 17:57:23,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638798710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:23,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:23,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 17:57:23,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411489054] [2022-01-10 17:57:23,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:23,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 17:57:23,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:23,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 17:57:23,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:57:23,606 INFO L87 Difference]: Start difference. First operand 27716 states and 51546 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:24,203 INFO L93 Difference]: Finished difference Result 55410 states and 103063 transitions. [2022-01-10 17:57:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 17:57:24,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 17:57:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:24,253 INFO L225 Difference]: With dead ends: 55410 [2022-01-10 17:57:24,253 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 17:57:24,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 17:57:24,282 INFO L933 BasicCegarLoop]: 10708 mSDtfsCounter, 32120 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32120 SdHoareTripleChecker+Valid, 10746 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:24,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32120 Valid, 10746 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:24,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 17:57:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 17:57:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8603190644625713) internal successors, (51542), 27715 states have internal predecessors, (51542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51542 transitions. [2022-01-10 17:57:25,010 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51542 transitions. Word has length 55 [2022-01-10 17:57:25,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:25,010 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51542 transitions. [2022-01-10 17:57:25,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51542 transitions. [2022-01-10 17:57:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 17:57:25,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:25,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:25,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:57:25,013 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:25,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:25,013 INFO L85 PathProgramCache]: Analyzing trace with hash -447173308, now seen corresponding path program 1 times [2022-01-10 17:57:25,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:25,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115849670] [2022-01-10 17:57:25,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:25,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:25,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:25,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115849670] [2022-01-10 17:57:25,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115849670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:25,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:25,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:57:25,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279004396] [2022-01-10 17:57:25,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:25,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:57:25,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:25,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:57:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:57:25,075 INFO L87 Difference]: Start difference. First operand 27716 states and 51542 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:25,771 INFO L93 Difference]: Finished difference Result 55404 states and 103045 transitions. [2022-01-10 17:57:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 17:57:25,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 17:57:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:25,825 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 17:57:25,825 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 17:57:25,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:57:25,854 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 32097 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32097 SdHoareTripleChecker+Valid, 10723 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:25,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32097 Valid, 10723 Invalid, 43 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 17:57:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 17:57:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8601746914025843) internal successors, (51538), 27715 states have internal predecessors, (51538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51538 transitions. [2022-01-10 17:57:26,557 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51538 transitions. Word has length 56 [2022-01-10 17:57:26,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:26,558 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51538 transitions. [2022-01-10 17:57:26,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51538 transitions. [2022-01-10 17:57:26,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 17:57:26,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:26,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:26,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:57:26,560 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:26,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1501624651, now seen corresponding path program 1 times [2022-01-10 17:57:26,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:26,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321796770] [2022-01-10 17:57:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:26,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:26,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:26,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321796770] [2022-01-10 17:57:26,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321796770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:26,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:26,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 17:57:26,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614915873] [2022-01-10 17:57:26,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:26,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 17:57:26,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:26,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 17:57:26,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 17:57:26,615 INFO L87 Difference]: Start difference. First operand 27716 states and 51538 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:27,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:27,280 INFO L93 Difference]: Finished difference Result 55404 states and 103038 transitions. [2022-01-10 17:57:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 17:57:27,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-01-10 17:57:27,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:27,326 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 17:57:27,327 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 17:57:27,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 17:57:27,349 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 32094 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32094 SdHoareTripleChecker+Valid, 10723 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:27,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32094 Valid, 10723 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:27,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 17:57:28,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 17:57:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8600303183425972) internal successors, (51534), 27715 states have internal predecessors, (51534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51534 transitions. [2022-01-10 17:57:28,092 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51534 transitions. Word has length 57 [2022-01-10 17:57:28,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:28,093 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51534 transitions. [2022-01-10 17:57:28,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51534 transitions. [2022-01-10 17:57:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 17:57:28,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:28,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:28,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:57:28,095 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:28,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:28,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1536434743, now seen corresponding path program 1 times [2022-01-10 17:57:28,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:28,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445661542] [2022-01-10 17:57:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:28,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:28,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:28,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445661542] [2022-01-10 17:57:28,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445661542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:28,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:28,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 17:57:28,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261136608] [2022-01-10 17:57:28,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:28,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 17:57:28,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:28,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 17:57:28,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:57:28,152 INFO L87 Difference]: Start difference. First operand 27716 states and 51534 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:28,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:28,900 INFO L93 Difference]: Finished difference Result 55404 states and 103031 transitions. [2022-01-10 17:57:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 17:57:28,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 17:57:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:28,938 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 17:57:28,939 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 17:57:28,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 17:57:28,952 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 42781 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42781 SdHoareTripleChecker+Valid, 10723 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:28,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42781 Valid, 10723 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 17:57:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 17:57:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8598859452826102) internal successors, (51530), 27715 states have internal predecessors, (51530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51530 transitions. [2022-01-10 17:57:29,761 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51530 transitions. Word has length 58 [2022-01-10 17:57:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:29,762 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51530 transitions. [2022-01-10 17:57:29,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51530 transitions. [2022-01-10 17:57:29,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 17:57:29,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:29,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:29,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:57:29,764 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:29,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1927804194, now seen corresponding path program 1 times [2022-01-10 17:57:29,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:29,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246926174] [2022-01-10 17:57:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:29,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:29,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:29,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246926174] [2022-01-10 17:57:29,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246926174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:29,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:29,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 17:57:29,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161400487] [2022-01-10 17:57:29,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:29,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 17:57:29,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:29,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 17:57:29,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:57:29,829 INFO L87 Difference]: Start difference. First operand 27716 states and 51530 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:30,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:30,559 INFO L93 Difference]: Finished difference Result 55404 states and 103024 transitions. [2022-01-10 17:57:30,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 17:57:30,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-10 17:57:30,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:30,604 INFO L225 Difference]: With dead ends: 55404 [2022-01-10 17:57:30,604 INFO L226 Difference]: Without dead ends: 27716 [2022-01-10 17:57:30,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 17:57:30,629 INFO L933 BasicCegarLoop]: 10690 mSDtfsCounter, 21388 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21388 SdHoareTripleChecker+Valid, 10743 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:30,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21388 Valid, 10743 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:57:30,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27716 states. [2022-01-10 17:57:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27716 to 27716. [2022-01-10 17:57:31,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27706 states have (on average 1.8597415722226232) internal successors, (51526), 27715 states have internal predecessors, (51526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:31,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 51526 transitions. [2022-01-10 17:57:31,441 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 51526 transitions. Word has length 59 [2022-01-10 17:57:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:31,441 INFO L470 AbstractCegarLoop]: Abstraction has 27716 states and 51526 transitions. [2022-01-10 17:57:31,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 51526 transitions. [2022-01-10 17:57:31,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 17:57:31,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:31,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:31,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:57:31,443 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:31,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:31,444 INFO L85 PathProgramCache]: Analyzing trace with hash 2101553962, now seen corresponding path program 1 times [2022-01-10 17:57:31,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:31,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009470473] [2022-01-10 17:57:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:31,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:31,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:31,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009470473] [2022-01-10 17:57:31,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009470473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:31,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:31,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:57:31,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916708264] [2022-01-10 17:57:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:31,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:57:31,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:31,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:57:31,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:57:31,515 INFO L87 Difference]: Start difference. First operand 27716 states and 51526 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:36,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:36,583 INFO L93 Difference]: Finished difference Result 180936 states and 336260 transitions. [2022-01-10 17:57:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 17:57:36,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-10 17:57:36,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:36,856 INFO L225 Difference]: With dead ends: 180936 [2022-01-10 17:57:36,856 INFO L226 Difference]: Without dead ends: 154177 [2022-01-10 17:57:36,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 17:57:36,897 INFO L933 BasicCegarLoop]: 21815 mSDtfsCounter, 72296 mSDsluCounter, 58171 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72296 SdHoareTripleChecker+Valid, 79986 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:36,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72296 Valid, 79986 Invalid, 1609 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 17:57:37,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154177 states. [2022-01-10 17:57:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154177 to 52172. [2022-01-10 17:57:39,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52172 states, 52162 states have (on average 1.8596487864729112) internal successors, (97003), 52171 states have internal predecessors, (97003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52172 states to 52172 states and 97003 transitions. [2022-01-10 17:57:39,164 INFO L78 Accepts]: Start accepts. Automaton has 52172 states and 97003 transitions. Word has length 60 [2022-01-10 17:57:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:39,164 INFO L470 AbstractCegarLoop]: Abstraction has 52172 states and 97003 transitions. [2022-01-10 17:57:39,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:39,164 INFO L276 IsEmpty]: Start isEmpty. Operand 52172 states and 97003 transitions. [2022-01-10 17:57:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 17:57:39,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:39,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:39,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:57:39,166 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:39,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:39,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2116968493, now seen corresponding path program 1 times [2022-01-10 17:57:39,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:39,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986265742] [2022-01-10 17:57:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:39,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:39,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:39,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986265742] [2022-01-10 17:57:39,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986265742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:39,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:39,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:57:39,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494263218] [2022-01-10 17:57:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:39,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:57:39,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:57:39,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:57:39,328 INFO L87 Difference]: Start difference. First operand 52172 states and 97003 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:41,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:41,249 INFO L93 Difference]: Finished difference Result 104602 states and 194203 transitions. [2022-01-10 17:57:41,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 17:57:41,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 17:57:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:41,349 INFO L225 Difference]: With dead ends: 104602 [2022-01-10 17:57:41,349 INFO L226 Difference]: Without dead ends: 52506 [2022-01-10 17:57:41,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 17:57:41,383 INFO L933 BasicCegarLoop]: 17123 mSDtfsCounter, 31139 mSDsluCounter, 27066 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31139 SdHoareTripleChecker+Valid, 44189 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:41,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31139 Valid, 44189 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 17:57:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52506 states. [2022-01-10 17:57:42,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52506 to 51327. [2022-01-10 17:57:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51327 states, 51317 states have (on average 1.8639826957928172) internal successors, (95654), 51326 states have internal predecessors, (95654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:43,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51327 states to 51327 states and 95654 transitions. [2022-01-10 17:57:43,108 INFO L78 Accepts]: Start accepts. Automaton has 51327 states and 95654 transitions. Word has length 61 [2022-01-10 17:57:43,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:43,108 INFO L470 AbstractCegarLoop]: Abstraction has 51327 states and 95654 transitions. [2022-01-10 17:57:43,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand 51327 states and 95654 transitions. [2022-01-10 17:57:43,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 17:57:43,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:43,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:43,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 17:57:43,110 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:43,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1056694875, now seen corresponding path program 1 times [2022-01-10 17:57:43,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:43,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811782560] [2022-01-10 17:57:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:43,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:43,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:43,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811782560] [2022-01-10 17:57:43,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811782560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:43,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:43,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:43,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013974111] [2022-01-10 17:57:43,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:43,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:43,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:43,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:43,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:43,153 INFO L87 Difference]: Start difference. First operand 51327 states and 95654 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:46,357 INFO L93 Difference]: Finished difference Result 151986 states and 283173 transitions. [2022-01-10 17:57:46,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:46,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 17:57:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:46,555 INFO L225 Difference]: With dead ends: 151986 [2022-01-10 17:57:46,555 INFO L226 Difference]: Without dead ends: 100695 [2022-01-10 17:57:46,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:46,603 INFO L933 BasicCegarLoop]: 10551 mSDtfsCounter, 9995 mSDsluCounter, 10002 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9995 SdHoareTripleChecker+Valid, 20553 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:46,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9995 Valid, 20553 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 17:57:46,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100695 states. [2022-01-10 17:57:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100695 to 51091. [2022-01-10 17:57:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51091 states, 51081 states have (on average 1.863334703705879) internal successors, (95181), 51090 states have internal predecessors, (95181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51091 states to 51091 states and 95181 transitions. [2022-01-10 17:57:48,723 INFO L78 Accepts]: Start accepts. Automaton has 51091 states and 95181 transitions. Word has length 61 [2022-01-10 17:57:48,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:48,723 INFO L470 AbstractCegarLoop]: Abstraction has 51091 states and 95181 transitions. [2022-01-10 17:57:48,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:48,723 INFO L276 IsEmpty]: Start isEmpty. Operand 51091 states and 95181 transitions. [2022-01-10 17:57:48,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 17:57:48,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:48,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:48,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 17:57:48,725 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:48,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:48,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1382016798, now seen corresponding path program 1 times [2022-01-10 17:57:48,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:48,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213432934] [2022-01-10 17:57:48,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:48,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:48,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:48,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:48,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213432934] [2022-01-10 17:57:48,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213432934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:48,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:48,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:48,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714633968] [2022-01-10 17:57:48,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:48,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:48,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:48,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:48,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:48,768 INFO L87 Difference]: Start difference. First operand 51091 states and 95181 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:52,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:52,605 INFO L93 Difference]: Finished difference Result 151999 states and 283364 transitions. [2022-01-10 17:57:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:52,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 17:57:52,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:52,791 INFO L225 Difference]: With dead ends: 151999 [2022-01-10 17:57:52,791 INFO L226 Difference]: Without dead ends: 100947 [2022-01-10 17:57:52,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:52,822 INFO L933 BasicCegarLoop]: 10832 mSDtfsCounter, 10154 mSDsluCounter, 10384 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10154 SdHoareTripleChecker+Valid, 21216 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:52,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10154 Valid, 21216 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 17:57:52,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100947 states. [2022-01-10 17:57:54,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100947 to 51463. [2022-01-10 17:57:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51463 states, 51453 states have (on average 1.860357996618273) internal successors, (95721), 51462 states have internal predecessors, (95721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51463 states to 51463 states and 95721 transitions. [2022-01-10 17:57:55,249 INFO L78 Accepts]: Start accepts. Automaton has 51463 states and 95721 transitions. Word has length 61 [2022-01-10 17:57:55,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:57:55,250 INFO L470 AbstractCegarLoop]: Abstraction has 51463 states and 95721 transitions. [2022-01-10 17:57:55,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 51463 states and 95721 transitions. [2022-01-10 17:57:55,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 17:57:55,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:57:55,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:57:55,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 17:57:55,251 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:57:55,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:57:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash -916957448, now seen corresponding path program 1 times [2022-01-10 17:57:55,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:57:55,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725774935] [2022-01-10 17:57:55,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:57:55,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:57:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:57:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:57:55,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:57:55,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725774935] [2022-01-10 17:57:55,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725774935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:57:55,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:57:55,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:57:55,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480729193] [2022-01-10 17:57:55,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:57:55,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:57:55,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:57:55,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:57:55,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:55,296 INFO L87 Difference]: Start difference. First operand 51463 states and 95721 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:57:58,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:57:58,440 INFO L93 Difference]: Finished difference Result 134642 states and 250575 transitions. [2022-01-10 17:57:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:57:58,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 17:57:58,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:57:58,580 INFO L225 Difference]: With dead ends: 134642 [2022-01-10 17:57:58,580 INFO L226 Difference]: Without dead ends: 84736 [2022-01-10 17:57:58,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:57:58,615 INFO L933 BasicCegarLoop]: 16559 mSDtfsCounter, 10421 mSDsluCounter, 9878 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10421 SdHoareTripleChecker+Valid, 26437 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:57:58,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10421 Valid, 26437 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:57:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84736 states. [2022-01-10 17:58:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84736 to 84214. [2022-01-10 17:58:01,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84214 states, 84204 states have (on average 1.8632725286209681) internal successors, (156895), 84213 states have internal predecessors, (156895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84214 states to 84214 states and 156895 transitions. [2022-01-10 17:58:01,969 INFO L78 Accepts]: Start accepts. Automaton has 84214 states and 156895 transitions. Word has length 61 [2022-01-10 17:58:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:01,969 INFO L470 AbstractCegarLoop]: Abstraction has 84214 states and 156895 transitions. [2022-01-10 17:58:01,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 84214 states and 156895 transitions. [2022-01-10 17:58:01,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 17:58:01,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:01,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:58:01,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 17:58:01,971 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 17:58:01,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:01,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1076848090, now seen corresponding path program 1 times [2022-01-10 17:58:01,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:01,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571050406] [2022-01-10 17:58:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:01,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:02,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:02,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571050406] [2022-01-10 17:58:02,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571050406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:02,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:02,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:58:02,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921882882] [2022-01-10 17:58:02,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:02,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:02,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:02,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:02,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:02,014 INFO L87 Difference]: Start difference. First operand 84214 states and 156895 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)