/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:46:19,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:46:19,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:46:19,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:46:19,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:46:19,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:46:19,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:46:19,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:46:19,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:46:19,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:46:19,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:46:19,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:46:19,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:46:19,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:46:19,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:46:19,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:46:19,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:46:19,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:46:19,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:46:19,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:46:19,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:46:19,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:46:19,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:46:19,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:46:19,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:46:19,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:46:19,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:46:19,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:46:19,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:46:19,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:46:19,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:46:19,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:46:19,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:46:19,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:46:19,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:46:19,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:46:19,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:46:19,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:46:19,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:46:19,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:46:19,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:46:19,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:46:19,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:46:19,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:46:19,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:46:19,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:46:19,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:46:19,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:46:19,150 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:46:19,151 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:46:19,151 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:46:19,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:46:19,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:46:19,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:46:19,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:46:19,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:46:19,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:46:19,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:46:19,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:46:19,153 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:46:19,153 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:46:19,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:46:19,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:46:19,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:46:19,369 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:46:19,370 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:46:19,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2022-01-10 23:46:19,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b336738/9a20cd0559fe4fba8adff889bda9a352/FLAG9b868b511 [2022-01-10 23:46:19,900 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:46:19,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c [2022-01-10 23:46:19,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b336738/9a20cd0559fe4fba8adff889bda9a352/FLAG9b868b511 [2022-01-10 23:46:19,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b336738/9a20cd0559fe4fba8adff889bda9a352 [2022-01-10 23:46:19,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:46:19,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:46:19,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:46:19,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:46:19,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:46:19,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:46:19" (1/1) ... [2022-01-10 23:46:19,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b8a245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:19, skipping insertion in model container [2022-01-10 23:46:19,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:46:19" (1/1) ... [2022-01-10 23:46:19,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:46:19,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:46:20,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c[35981,35994] [2022-01-10 23:46:20,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:46:20,494 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:46:20,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:46:20,546 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c[35981,35994] [2022-01-10 23:46:20,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:46:20,612 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:46:20,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product28.cil.c[35981,35994] [2022-01-10 23:46:20,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:46:20,713 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:46:20,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20 WrapperNode [2022-01-10 23:46:20,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:46:20,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:46:20,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:46:20,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:46:20,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:20,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:20,955 INFO L137 Inliner]: procedures = 99, calls = 348, calls flagged for inlining = 200, calls inlined = 622, statements flattened = 18378 [2022-01-10 23:46:20,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:46:20,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:46:20,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:46:20,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:46:20,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:20,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:21,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:21,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:21,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:21,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:21,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:21,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:46:21,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:46:21,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:46:21,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:46:21,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (1/1) ... [2022-01-10 23:46:21,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:46:21,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:46:21,317 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 23:46:21,336 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 23:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:46:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:46:21,498 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:46:21,500 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:46:27,673 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:46:27,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:46:27,705 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:46:27,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:27 BoogieIcfgContainer [2022-01-10 23:46:27,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:46:27,713 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:46:27,713 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:46:27,714 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:46:27,716 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:27" (1/1) ... [2022-01-10 23:46:28,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:46:28 BasicIcfg [2022-01-10 23:46:28,720 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:46:28,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:46:28,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:46:28,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:46:28,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:46:19" (1/4) ... [2022-01-10 23:46:28,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f24dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:46:28, skipping insertion in model container [2022-01-10 23:46:28,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:20" (2/4) ... [2022-01-10 23:46:28,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f24dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:46:28, skipping insertion in model container [2022-01-10 23:46:28,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:27" (3/4) ... [2022-01-10 23:46:28,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f24dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:46:28, skipping insertion in model container [2022-01-10 23:46:28,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:46:28" (4/4) ... [2022-01-10 23:46:28,726 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product28.cil.cTransformedIcfg [2022-01-10 23:46:28,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:46:28,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:46:28,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:46:28,787 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 23:46:28,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:46:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 5178 states, 5172 states have (on average 1.8629156999226604) internal successors, (9635), 5177 states have internal predecessors, (9635), 0 states have call successors, (0), 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 23:46:28,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 23:46:28,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:28,863 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] [2022-01-10 23:46:28,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:28,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:28,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1045746956, now seen corresponding path program 1 times [2022-01-10 23:46:28,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:28,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483836450] [2022-01-10 23:46:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:28,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:29,101 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 23:46:29,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:29,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483836450] [2022-01-10 23:46:29,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483836450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:29,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:29,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:29,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969223938] [2022-01-10 23:46:29,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:29,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:29,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:29,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:29,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:29,134 INFO L87 Difference]: Start difference. First operand has 5178 states, 5172 states have (on average 1.8629156999226604) internal successors, (9635), 5177 states have internal predecessors, (9635), 0 states have call successors, (0), 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 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 23:46:29,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:29,446 INFO L93 Difference]: Finished difference Result 10341 states and 19247 transitions. [2022-01-10 23:46:29,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:29,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 23:46:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:29,486 INFO L225 Difference]: With dead ends: 10341 [2022-01-10 23:46:29,486 INFO L226 Difference]: Without dead ends: 5167 [2022-01-10 23:46:29,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:29,504 INFO L933 BasicCegarLoop]: 9614 mSDtfsCounter, 9609 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9609 SdHoareTripleChecker+Valid, 9625 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:29,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9609 Valid, 9625 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2022-01-10 23:46:29,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167. [2022-01-10 23:46:29,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5162 states have (on average 1.8618752421542037) internal successors, (9611), 5166 states have internal predecessors, (9611), 0 states have call successors, (0), 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 23:46:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 9611 transitions. [2022-01-10 23:46:29,686 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 9611 transitions. Word has length 33 [2022-01-10 23:46:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:29,686 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 9611 transitions. [2022-01-10 23:46:29,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 23:46:29,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 9611 transitions. [2022-01-10 23:46:29,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 23:46:29,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:29,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:29,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:46:29,693 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:29,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:29,696 INFO L85 PathProgramCache]: Analyzing trace with hash 126547686, now seen corresponding path program 1 times [2022-01-10 23:46:29,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:29,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151767705] [2022-01-10 23:46:29,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:29,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:29,870 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 23:46:29,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:29,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151767705] [2022-01-10 23:46:29,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151767705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:29,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:29,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:29,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236319965] [2022-01-10 23:46:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:29,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:29,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:29,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:29,873 INFO L87 Difference]: Start difference. First operand 5167 states and 9611 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:30,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:30,064 INFO L93 Difference]: Finished difference Result 10284 states and 19136 transitions. [2022-01-10 23:46:30,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:30,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 23:46:30,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:30,085 INFO L225 Difference]: With dead ends: 10284 [2022-01-10 23:46:30,085 INFO L226 Difference]: Without dead ends: 5167 [2022-01-10 23:46:30,097 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 23:46:30,098 INFO L933 BasicCegarLoop]: 9551 mSDtfsCounter, 9569 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9569 SdHoareTripleChecker+Valid, 9566 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:30,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9569 Valid, 9566 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:30,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2022-01-10 23:46:30,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 5167. [2022-01-10 23:46:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5162 states have (on average 1.8570321580782643) internal successors, (9586), 5166 states have internal predecessors, (9586), 0 states have call successors, (0), 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 23:46:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 9586 transitions. [2022-01-10 23:46:30,247 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 9586 transitions. Word has length 40 [2022-01-10 23:46:30,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:30,248 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 9586 transitions. [2022-01-10 23:46:30,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:30,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 9586 transitions. [2022-01-10 23:46:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 23:46:30,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:30,260 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] [2022-01-10 23:46:30,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:46:30,261 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:30,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1091468079, now seen corresponding path program 1 times [2022-01-10 23:46:30,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:30,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237192956] [2022-01-10 23:46:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:30,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:30,359 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 23:46:30,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:30,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237192956] [2022-01-10 23:46:30,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237192956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:30,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:30,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:30,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522726013] [2022-01-10 23:46:30,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:30,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:30,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:30,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:30,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:30,361 INFO L87 Difference]: Start difference. First operand 5167 states and 9586 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 23:46:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:30,681 INFO L93 Difference]: Finished difference Result 11601 states and 21582 transitions. [2022-01-10 23:46:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:30,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-01-10 23:46:30,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:30,711 INFO L225 Difference]: With dead ends: 11601 [2022-01-10 23:46:30,711 INFO L226 Difference]: Without dead ends: 8994 [2022-01-10 23:46:30,717 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 23:46:30,718 INFO L933 BasicCegarLoop]: 10519 mSDtfsCounter, 9526 mSDsluCounter, 7133 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9526 SdHoareTripleChecker+Valid, 17652 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:30,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9526 Valid, 17652 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:46:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8994 states. [2022-01-10 23:46:30,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8994 to 8994. [2022-01-10 23:46:30,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8989 states have (on average 1.8621648681722105) internal successors, (16739), 8993 states have internal predecessors, (16739), 0 states have call successors, (0), 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 23:46:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 16739 transitions. [2022-01-10 23:46:30,958 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 16739 transitions. Word has length 43 [2022-01-10 23:46:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:30,958 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 16739 transitions. [2022-01-10 23:46:30,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 23:46:30,959 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 16739 transitions. [2022-01-10 23:46:30,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 23:46:30,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:30,960 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] [2022-01-10 23:46:30,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:46:30,961 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:30,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:30,961 INFO L85 PathProgramCache]: Analyzing trace with hash 473056047, now seen corresponding path program 1 times [2022-01-10 23:46:30,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:30,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161718793] [2022-01-10 23:46:30,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:30,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:31,072 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 23:46:31,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:31,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161718793] [2022-01-10 23:46:31,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161718793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:31,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:31,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:31,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666069200] [2022-01-10 23:46:31,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:31,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:31,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:31,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:31,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:31,074 INFO L87 Difference]: Start difference. First operand 8994 states and 16739 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 23:46:31,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:31,424 INFO L93 Difference]: Finished difference Result 21605 states and 40254 transitions. [2022-01-10 23:46:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:31,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-10 23:46:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:31,477 INFO L225 Difference]: With dead ends: 21605 [2022-01-10 23:46:31,477 INFO L226 Difference]: Without dead ends: 16415 [2022-01-10 23:46:31,489 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 23:46:31,494 INFO L933 BasicCegarLoop]: 9583 mSDtfsCounter, 9525 mSDsluCounter, 7136 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9525 SdHoareTripleChecker+Valid, 16719 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:31,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9525 Valid, 16719 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:46:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16415 states. [2022-01-10 23:46:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16415 to 16413. [2022-01-10 23:46:31,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16413 states, 16408 states have (on average 1.8648829839102876) internal successors, (30599), 16412 states have internal predecessors, (30599), 0 states have call successors, (0), 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 23:46:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16413 states to 16413 states and 30599 transitions. [2022-01-10 23:46:31,842 INFO L78 Accepts]: Start accepts. Automaton has 16413 states and 30599 transitions. Word has length 45 [2022-01-10 23:46:31,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:31,842 INFO L470 AbstractCegarLoop]: Abstraction has 16413 states and 30599 transitions. [2022-01-10 23:46:31,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 23:46:31,842 INFO L276 IsEmpty]: Start isEmpty. Operand 16413 states and 30599 transitions. [2022-01-10 23:46:31,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 23:46:31,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:31,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:31,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:46:31,844 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:31,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:31,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1371621581, now seen corresponding path program 1 times [2022-01-10 23:46:31,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:31,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773820566] [2022-01-10 23:46:31,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:31,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:31,915 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 23:46:31,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:31,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773820566] [2022-01-10 23:46:31,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773820566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:31,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:31,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:31,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910253757] [2022-01-10 23:46:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:31,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:31,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:31,918 INFO L87 Difference]: Start difference. First operand 16413 states and 30599 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:32,398 INFO L93 Difference]: Finished difference Result 41131 states and 76687 transitions. [2022-01-10 23:46:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:32,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-10 23:46:32,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:32,475 INFO L225 Difference]: With dead ends: 41131 [2022-01-10 23:46:32,475 INFO L226 Difference]: Without dead ends: 30784 [2022-01-10 23:46:32,503 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 23:46:32,504 INFO L933 BasicCegarLoop]: 9583 mSDtfsCounter, 9513 mSDsluCounter, 7139 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9513 SdHoareTripleChecker+Valid, 16722 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:32,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9513 Valid, 16722 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:46:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30784 states. [2022-01-10 23:46:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30784 to 30780. [2022-01-10 23:46:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30780 states, 30775 states have (on average 1.8659626320064988) internal successors, (57425), 30779 states have internal predecessors, (57425), 0 states have call successors, (0), 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 23:46:33,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30780 states to 30780 states and 57425 transitions. [2022-01-10 23:46:33,243 INFO L78 Accepts]: Start accepts. Automaton has 30780 states and 57425 transitions. Word has length 46 [2022-01-10 23:46:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:33,244 INFO L470 AbstractCegarLoop]: Abstraction has 30780 states and 57425 transitions. [2022-01-10 23:46:33,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 30780 states and 57425 transitions. [2022-01-10 23:46:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 23:46:33,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:33,247 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] [2022-01-10 23:46:33,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:46:33,247 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:33,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash -429378086, now seen corresponding path program 1 times [2022-01-10 23:46:33,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:33,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937274089] [2022-01-10 23:46:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:33,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:33,294 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 23:46:33,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:33,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937274089] [2022-01-10 23:46:33,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937274089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:33,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:33,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:33,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470884936] [2022-01-10 23:46:33,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:33,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:33,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:33,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:33,295 INFO L87 Difference]: Start difference. First operand 30780 states and 57425 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 23:46:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:34,055 INFO L93 Difference]: Finished difference Result 79219 states and 147728 transitions. [2022-01-10 23:46:34,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:34,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-01-10 23:46:34,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:34,193 INFO L225 Difference]: With dead ends: 79219 [2022-01-10 23:46:34,193 INFO L226 Difference]: Without dead ends: 58577 [2022-01-10 23:46:34,229 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 23:46:34,239 INFO L933 BasicCegarLoop]: 9583 mSDtfsCounter, 9512 mSDsluCounter, 7142 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9512 SdHoareTripleChecker+Valid, 16725 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 23:46:34,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9512 Valid, 16725 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58577 states. [2022-01-10 23:46:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58577 to 58571. [2022-01-10 23:46:35,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58571 states, 58566 states have (on average 1.8660485605982993) internal successors, (109287), 58570 states have internal predecessors, (109287), 0 states have call successors, (0), 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 23:46:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58571 states to 58571 states and 109287 transitions. [2022-01-10 23:46:35,760 INFO L78 Accepts]: Start accepts. Automaton has 58571 states and 109287 transitions. Word has length 47 [2022-01-10 23:46:35,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:35,776 INFO L470 AbstractCegarLoop]: Abstraction has 58571 states and 109287 transitions. [2022-01-10 23:46:35,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 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 23:46:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 58571 states and 109287 transitions. [2022-01-10 23:46:35,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 23:46:35,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:35,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:35,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:46:35,779 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:35,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash -425792834, now seen corresponding path program 1 times [2022-01-10 23:46:35,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:35,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193826645] [2022-01-10 23:46:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:35,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:35,915 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 23:46:35,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:35,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193826645] [2022-01-10 23:46:35,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193826645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:35,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:35,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:35,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843071170] [2022-01-10 23:46:35,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:35,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:35,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:35,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:35,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:35,918 INFO L87 Difference]: Start difference. First operand 58571 states and 109287 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:37,436 INFO L93 Difference]: Finished difference Result 153467 states and 286156 transitions. [2022-01-10 23:46:37,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:37,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-10 23:46:37,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:37,913 INFO L225 Difference]: With dead ends: 153467 [2022-01-10 23:46:37,913 INFO L226 Difference]: Without dead ends: 112267 [2022-01-10 23:46:37,958 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 23:46:37,958 INFO L933 BasicCegarLoop]: 9584 mSDtfsCounter, 9511 mSDsluCounter, 7145 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9511 SdHoareTripleChecker+Valid, 16729 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:37,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9511 Valid, 16729 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:38,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112267 states. [2022-01-10 23:46:39,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112267 to 112259. [2022-01-10 23:46:40,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8655459939066759) internal successors, (209415), 112258 states have internal predecessors, (209415), 0 states have call successors, (0), 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 23:46:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 209415 transitions. [2022-01-10 23:46:40,526 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 209415 transitions. Word has length 48 [2022-01-10 23:46:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:40,526 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 209415 transitions. [2022-01-10 23:46:40,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 209415 transitions. [2022-01-10 23:46:40,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 23:46:40,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:40,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:40,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:46:40,582 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:40,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:40,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2122938480, now seen corresponding path program 1 times [2022-01-10 23:46:40,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:40,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840246727] [2022-01-10 23:46:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:40,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:40,644 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 23:46:40,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:40,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840246727] [2022-01-10 23:46:40,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840246727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:40,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:40,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:40,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187720453] [2022-01-10 23:46:40,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:40,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:40,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:40,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:40,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:40,646 INFO L87 Difference]: Start difference. First operand 112259 states and 209415 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 23:46:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:43,953 INFO L93 Difference]: Finished difference Result 229222 states and 427489 transitions. [2022-01-10 23:46:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:43,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-01-10 23:46:43,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:44,305 INFO L225 Difference]: With dead ends: 229222 [2022-01-10 23:46:44,305 INFO L226 Difference]: Without dead ends: 118993 [2022-01-10 23:46:44,433 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 23:46:44,433 INFO L933 BasicCegarLoop]: 10889 mSDtfsCounter, 7331 mSDsluCounter, 4787 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7331 SdHoareTripleChecker+Valid, 15676 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:44,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7331 Valid, 15676 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 23:46:44,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118993 states. [2022-01-10 23:46:46,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118993 to 112259. [2022-01-10 23:46:46,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8414043152137118) internal successors, (206705), 112258 states have internal predecessors, (206705), 0 states have call successors, (0), 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 23:46:46,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 206705 transitions. [2022-01-10 23:46:46,855 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 206705 transitions. Word has length 111 [2022-01-10 23:46:46,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:46,855 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 206705 transitions. [2022-01-10 23:46:46,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 23:46:46,855 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 206705 transitions. [2022-01-10 23:46:46,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 23:46:46,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:46,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:46:46,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:46:46,899 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:46,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:46,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1867309554, now seen corresponding path program 1 times [2022-01-10 23:46:46,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:46,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417620266] [2022-01-10 23:46:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:46,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:46,956 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 23:46:46,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:46,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417620266] [2022-01-10 23:46:46,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417620266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:46,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:46,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:46,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601116309] [2022-01-10 23:46:46,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:46,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:46,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:46,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:46,958 INFO L87 Difference]: Start difference. First operand 112259 states and 206705 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 23:46:50,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:50,005 INFO L93 Difference]: Finished difference Result 233124 states and 429487 transitions. [2022-01-10 23:46:50,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:50,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-10 23:46:50,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:50,400 INFO L225 Difference]: With dead ends: 233124 [2022-01-10 23:46:50,400 INFO L226 Difference]: Without dead ends: 125467 [2022-01-10 23:46:50,504 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 23:46:50,505 INFO L933 BasicCegarLoop]: 11901 mSDtfsCounter, 6782 mSDsluCounter, 5423 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6782 SdHoareTripleChecker+Valid, 17324 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:50,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6782 Valid, 17324 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 23:46:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125467 states. [2022-01-10 23:46:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125467 to 112259. [2022-01-10 23:46:52,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8206478165588753) internal successors, (204375), 112258 states have internal predecessors, (204375), 0 states have call successors, (0), 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 23:46:52,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 204375 transitions. [2022-01-10 23:46:52,865 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 204375 transitions. Word has length 116 [2022-01-10 23:46:52,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:52,866 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 204375 transitions. [2022-01-10 23:46:52,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 23:46:52,866 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 204375 transitions. [2022-01-10 23:46:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 23:46:52,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:52,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:52,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:46:52,906 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:52,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:52,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1920724553, now seen corresponding path program 1 times [2022-01-10 23:46:52,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:52,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540619849] [2022-01-10 23:46:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:52,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:52,958 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 23:46:52,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:52,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540619849] [2022-01-10 23:46:52,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540619849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:52,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:52,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:52,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943015077] [2022-01-10 23:46:52,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:52,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:52,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:52,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:52,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:52,960 INFO L87 Difference]: Start difference. First operand 112259 states and 204375 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:56,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:56,225 INFO L93 Difference]: Finished difference Result 236372 states and 431351 transitions. [2022-01-10 23:46:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:56,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-01-10 23:46:56,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:56,592 INFO L225 Difference]: With dead ends: 236372 [2022-01-10 23:46:56,592 INFO L226 Difference]: Without dead ends: 133607 [2022-01-10 23:46:56,698 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 23:46:56,699 INFO L933 BasicCegarLoop]: 12697 mSDtfsCounter, 6477 mSDsluCounter, 6059 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6477 SdHoareTripleChecker+Valid, 18756 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:56,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6477 Valid, 18756 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 23:46:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133607 states. [2022-01-10 23:46:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133607 to 112259. [2022-01-10 23:46:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.8041673347943057) internal successors, (202525), 112258 states have internal predecessors, (202525), 0 states have call successors, (0), 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 23:46:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 202525 transitions. [2022-01-10 23:46:59,603 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 202525 transitions. Word has length 120 [2022-01-10 23:46:59,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:59,603 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 202525 transitions. [2022-01-10 23:46:59,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:59,603 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 202525 transitions. [2022-01-10 23:46:59,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 23:46:59,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:59,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:59,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:46:59,644 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:59,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:59,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2146679696, now seen corresponding path program 1 times [2022-01-10 23:46:59,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:59,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857637113] [2022-01-10 23:46:59,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:59,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:59,698 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 23:46:59,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:59,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857637113] [2022-01-10 23:46:59,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857637113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:59,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:59,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:59,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959059666] [2022-01-10 23:46:59,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:59,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:59,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:59,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:59,699 INFO L87 Difference]: Start difference. First operand 112259 states and 202525 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 23:47:03,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:03,011 INFO L93 Difference]: Finished difference Result 239260 states and 433975 transitions. [2022-01-10 23:47:03,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:03,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2022-01-10 23:47:03,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:03,326 INFO L225 Difference]: With dead ends: 239260 [2022-01-10 23:47:03,326 INFO L226 Difference]: Without dead ends: 143117 [2022-01-10 23:47:03,391 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 23:47:03,393 INFO L933 BasicCegarLoop]: 13473 mSDtfsCounter, 6212 mSDsluCounter, 6695 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6212 SdHoareTripleChecker+Valid, 20168 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:03,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6212 Valid, 20168 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 23:47:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143117 states. [2022-01-10 23:47:05,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143117 to 112259. [2022-01-10 23:47:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.7928537067721417) internal successors, (201255), 112258 states have internal predecessors, (201255), 0 states have call successors, (0), 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 23:47:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 201255 transitions. [2022-01-10 23:47:06,274 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 201255 transitions. Word has length 123 [2022-01-10 23:47:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:06,274 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 201255 transitions. [2022-01-10 23:47:06,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 23:47:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 201255 transitions. [2022-01-10 23:47:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 23:47:06,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:06,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:06,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:47:06,315 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:47:06,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:06,316 INFO L85 PathProgramCache]: Analyzing trace with hash -882377818, now seen corresponding path program 1 times [2022-01-10 23:47:06,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:06,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026243369] [2022-01-10 23:47:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:06,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:06,369 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 23:47:06,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:06,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026243369] [2022-01-10 23:47:06,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026243369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:06,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:06,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:06,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619033633] [2022-01-10 23:47:06,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:06,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:06,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:06,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:06,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:06,371 INFO L87 Difference]: Start difference. First operand 112259 states and 201255 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:09,751 INFO L93 Difference]: Finished difference Result 242076 states and 438017 transitions. [2022-01-10 23:47:09,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:09,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2022-01-10 23:47:09,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:10,067 INFO L225 Difference]: With dead ends: 242076 [2022-01-10 23:47:10,070 INFO L226 Difference]: Without dead ends: 153243 [2022-01-10 23:47:10,183 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 23:47:10,184 INFO L933 BasicCegarLoop]: 14229 mSDtfsCounter, 5987 mSDsluCounter, 7331 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5987 SdHoareTripleChecker+Valid, 21560 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:10,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5987 Valid, 21560 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 23:47:10,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153243 states. [2022-01-10 23:47:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153243 to 112259. [2022-01-10 23:47:12,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112259 states, 112254 states have (on average 1.7871523509184528) internal successors, (200615), 112258 states have internal predecessors, (200615), 0 states have call successors, (0), 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 23:47:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112259 states to 112259 states and 200615 transitions. [2022-01-10 23:47:13,134 INFO L78 Accepts]: Start accepts. Automaton has 112259 states and 200615 transitions. Word has length 125 [2022-01-10 23:47:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:13,135 INFO L470 AbstractCegarLoop]: Abstraction has 112259 states and 200615 transitions. [2022-01-10 23:47:13,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 112259 states and 200615 transitions. [2022-01-10 23:47:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 23:47:13,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:13,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:13,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:47:13,176 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:47:13,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:13,176 INFO L85 PathProgramCache]: Analyzing trace with hash 148217505, now seen corresponding path program 1 times [2022-01-10 23:47:13,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:13,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597189310] [2022-01-10 23:47:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:13,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:13,277 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 23:47:13,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:13,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597189310] [2022-01-10 23:47:13,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597189310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:13,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:13,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:47:13,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685946169] [2022-01-10 23:47:13,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:13,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:47:13,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:47:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:47:13,279 INFO L87 Difference]: Start difference. First operand 112259 states and 200615 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)