/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_spec3_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:47:47,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:47:47,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:47:47,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:47:47,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:47:47,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:47:47,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:47:47,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:47:47,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:47:47,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:47:47,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:47:47,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:47:47,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:47:47,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:47:47,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:47:47,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:47:47,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:47:47,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:47:47,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:47:47,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:47:47,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:47:47,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:47:47,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:47:47,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:47:47,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:47:47,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:47:47,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:47:47,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:47:47,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:47:47,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:47:47,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:47:47,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:47:47,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:47:47,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:47:47,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:47:47,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:47:47,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:47:47,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:47:47,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:47:47,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:47:47,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:47:47,268 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 23:47:47,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:47:47,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:47:47,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:47:47,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:47:47,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:47:47,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:47:47,302 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:47:47,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:47:47,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:47:47,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:47:47,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:47:47,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:47:47,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:47:47,306 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:47:47,306 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:47:47,306 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:47:47,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:47:47,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:47:47,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:47:47,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:47:47,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:47:47,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:47,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:47:47,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:47:47,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:47:47,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:47:47,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:47:47,309 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:47:47,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:47:47,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:47:47,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:47:47,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:47:47,311 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:47:47,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:47:47,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:47:47,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:47:47,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:47:47,512 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:47:47,512 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:47:47,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product30.cil.c [2022-01-10 23:47:47,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24edca190/df821fad14f3405c963e56927d1934ba/FLAGf37f5bb84 [2022-01-10 23:47:48,024 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:47:48,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product30.cil.c [2022-01-10 23:47:48,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24edca190/df821fad14f3405c963e56927d1934ba/FLAGf37f5bb84 [2022-01-10 23:47:48,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24edca190/df821fad14f3405c963e56927d1934ba [2022-01-10 23:47:48,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:47:48,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:47:48,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:48,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:47:48,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:47:48,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:48,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7343fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:48, skipping insertion in model container [2022-01-10 23:47:48,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:48" (1/1) ... [2022-01-10 23:47:48,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:47:48,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:48,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product30.cil.c[14523,14536] [2022-01-10 23:47:48,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:48,876 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:47:48,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:48,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product30.cil.c[14523,14536] [2022-01-10 23:47:49,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:49,030 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:47:49,061 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product30.cil.c[14523,14536] [2022-01-10 23:47:49,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:49,149 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:47:49,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49 WrapperNode [2022-01-10 23:47:49,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:49,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:49,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:47:49,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:47:49,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:49,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:49,764 INFO L137 Inliner]: procedures = 95, calls = 353, calls flagged for inlining = 205, calls inlined = 1908, statements flattened = 65996 [2022-01-10 23:47:49,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:49,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:47:49,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:47:49,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:47:49,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:49,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:49,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:49,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:50,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:50,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:50,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:51,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:47:51,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:47:51,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:47:51,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:47:51,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (1/1) ... [2022-01-10 23:47:51,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:51,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:47:51,124 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 23:47:51,144 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 23:47:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:47:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:47:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:47:51,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:47:51,352 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:47:51,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:48:11,385 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:48:11,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:48:11,508 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:48:11,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:11 BoogieIcfgContainer [2022-01-10 23:48:11,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:48:11,524 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:48:11,524 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:48:11,525 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:48:11,528 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:11" (1/1) ... [2022-01-10 23:48:15,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:15 BasicIcfg [2022-01-10 23:48:15,245 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:48:15,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:48:15,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:48:15,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:48:15,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:47:48" (1/4) ... [2022-01-10 23:48:15,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3734c3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:15, skipping insertion in model container [2022-01-10 23:48:15,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:49" (2/4) ... [2022-01-10 23:48:15,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3734c3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:15, skipping insertion in model container [2022-01-10 23:48:15,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:11" (3/4) ... [2022-01-10 23:48:15,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3734c3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:48:15, skipping insertion in model container [2022-01-10 23:48:15,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:15" (4/4) ... [2022-01-10 23:48:15,253 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product30.cil.cTransformedIcfg [2022-01-10 23:48:15,259 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:48:15,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 23:48:15,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:48:15,362 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 23:48:15,362 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 23:48:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 17598 states, 17587 states have (on average 1.8795132768522205) internal successors, (33055), 17597 states have internal predecessors, (33055), 0 states have call successors, (0), 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 23:48:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 23:48:15,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:15,659 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] [2022-01-10 23:48:15,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:15,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:15,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1663076510, now seen corresponding path program 1 times [2022-01-10 23:48:15,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:15,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582986382] [2022-01-10 23:48:15,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:15,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:16,101 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 23:48:16,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:16,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582986382] [2022-01-10 23:48:16,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582986382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:16,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:16,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:48:16,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853077736] [2022-01-10 23:48:16,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:16,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:48:16,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:16,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:48:16,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:48:16,184 INFO L87 Difference]: Start difference. First operand has 17598 states, 17587 states have (on average 1.8795132768522205) internal successors, (33055), 17597 states have internal predecessors, (33055), 0 states have call successors, (0), 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 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 23:48:18,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:18,533 INFO L93 Difference]: Finished difference Result 70181 states and 131853 transitions. [2022-01-10 23:48:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:48:18,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2022-01-10 23:48:18,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:18,846 INFO L225 Difference]: With dead ends: 70181 [2022-01-10 23:48:18,846 INFO L226 Difference]: Without dead ends: 52589 [2022-01-10 23:48:18,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:18,917 INFO L933 BasicCegarLoop]: 65886 mSDtfsCounter, 98680 mSDsluCounter, 98859 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98680 SdHoareTripleChecker+Valid, 164745 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:18,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98680 Valid, 164745 Invalid, 77 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:19,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52589 states. [2022-01-10 23:48:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52589 to 17591. [2022-01-10 23:48:19,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17591 states, 17581 states have (on average 1.8789033615835278) internal successors, (33033), 17590 states have internal predecessors, (33033), 0 states have call successors, (0), 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 23:48:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17591 states to 17591 states and 33033 transitions. [2022-01-10 23:48:19,895 INFO L78 Accepts]: Start accepts. Automaton has 17591 states and 33033 transitions. Word has length 34 [2022-01-10 23:48:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:19,895 INFO L470 AbstractCegarLoop]: Abstraction has 17591 states and 33033 transitions. [2022-01-10 23:48:19,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 23:48:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 17591 states and 33033 transitions. [2022-01-10 23:48:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 23:48:19,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:19,898 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] [2022-01-10 23:48:19,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:48:19,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:19,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1357225497, now seen corresponding path program 1 times [2022-01-10 23:48:19,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:19,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862072594] [2022-01-10 23:48:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:19,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:19,973 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 23:48:19,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:19,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862072594] [2022-01-10 23:48:19,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862072594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:19,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:19,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:19,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536276703] [2022-01-10 23:48:19,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:19,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:19,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:19,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:19,976 INFO L87 Difference]: Start difference. First operand 17591 states and 33033 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:20,677 INFO L93 Difference]: Finished difference Result 35099 states and 65916 transitions. [2022-01-10 23:48:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:20,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-10 23:48:20,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:20,735 INFO L225 Difference]: With dead ends: 35099 [2022-01-10 23:48:20,736 INFO L226 Difference]: Without dead ends: 17523 [2022-01-10 23:48:20,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:20,767 INFO L933 BasicCegarLoop]: 32895 mSDtfsCounter, 32887 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32887 SdHoareTripleChecker+Valid, 32903 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:20,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32887 Valid, 32903 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-01-10 23:48:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 17523. [2022-01-10 23:48:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17523 states, 17513 states have (on average 1.8784331639353622) internal successors, (32897), 17522 states have internal predecessors, (32897), 0 states have call successors, (0), 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 23:48:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17523 states to 17523 states and 32897 transitions. [2022-01-10 23:48:21,441 INFO L78 Accepts]: Start accepts. Automaton has 17523 states and 32897 transitions. Word has length 35 [2022-01-10 23:48:21,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:21,442 INFO L470 AbstractCegarLoop]: Abstraction has 17523 states and 32897 transitions. [2022-01-10 23:48:21,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 17523 states and 32897 transitions. [2022-01-10 23:48:21,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 23:48:21,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:21,444 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] [2022-01-10 23:48:21,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:48:21,445 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:21,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2123866497, now seen corresponding path program 1 times [2022-01-10 23:48:21,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:21,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587036773] [2022-01-10 23:48:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:21,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:21,581 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 23:48:21,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:21,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587036773] [2022-01-10 23:48:21,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587036773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:21,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:21,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:48:21,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156860747] [2022-01-10 23:48:21,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:21,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:48:21,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:21,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:48:21,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:48:21,585 INFO L87 Difference]: Start difference. First operand 17523 states and 32897 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 23:48:22,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:22,627 INFO L93 Difference]: Finished difference Result 35024 states and 65765 transitions. [2022-01-10 23:48:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:48:22,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-01-10 23:48:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:22,676 INFO L225 Difference]: With dead ends: 35024 [2022-01-10 23:48:22,676 INFO L226 Difference]: Without dead ends: 17523 [2022-01-10 23:48:22,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:48:22,708 INFO L933 BasicCegarLoop]: 32881 mSDtfsCounter, 98641 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98641 SdHoareTripleChecker+Valid, 32909 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:22,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98641 Valid, 32909 Invalid, 36 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-01-10 23:48:23,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 17523. [2022-01-10 23:48:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17523 states, 17513 states have (on average 1.8783189630560155) internal successors, (32895), 17522 states have internal predecessors, (32895), 0 states have call successors, (0), 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 23:48:23,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17523 states to 17523 states and 32895 transitions. [2022-01-10 23:48:23,267 INFO L78 Accepts]: Start accepts. Automaton has 17523 states and 32895 transitions. Word has length 37 [2022-01-10 23:48:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:23,268 INFO L470 AbstractCegarLoop]: Abstraction has 17523 states and 32895 transitions. [2022-01-10 23:48:23,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 23:48:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 17523 states and 32895 transitions. [2022-01-10 23:48:23,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 23:48:23,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:23,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:48:23,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:48:23,272 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:23,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:23,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1083785785, now seen corresponding path program 1 times [2022-01-10 23:48:23,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:23,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677247371] [2022-01-10 23:48:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:23,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:23,457 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 23:48:23,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:23,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677247371] [2022-01-10 23:48:23,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677247371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:23,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:23,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:48:23,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751481734] [2022-01-10 23:48:23,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:23,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:48:23,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:23,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:48:23,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:23,460 INFO L87 Difference]: Start difference. First operand 17523 states and 32895 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:24,209 INFO L93 Difference]: Finished difference Result 35018 states and 65751 transitions. [2022-01-10 23:48:24,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:48:24,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-10 23:48:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:24,276 INFO L225 Difference]: With dead ends: 35018 [2022-01-10 23:48:24,276 INFO L226 Difference]: Without dead ends: 17523 [2022-01-10 23:48:24,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:48:24,300 INFO L933 BasicCegarLoop]: 32863 mSDtfsCounter, 98616 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98616 SdHoareTripleChecker+Valid, 32896 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:24,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98616 Valid, 32896 Invalid, 43 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:24,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-01-10 23:48:24,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 17523. [2022-01-10 23:48:24,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17523 states, 17513 states have (on average 1.8782047621766687) internal successors, (32893), 17522 states have internal predecessors, (32893), 0 states have call successors, (0), 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 23:48:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17523 states to 17523 states and 32893 transitions. [2022-01-10 23:48:24,882 INFO L78 Accepts]: Start accepts. Automaton has 17523 states and 32893 transitions. Word has length 38 [2022-01-10 23:48:24,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:24,882 INFO L470 AbstractCegarLoop]: Abstraction has 17523 states and 32893 transitions. [2022-01-10 23:48:24,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 17523 states and 32893 transitions. [2022-01-10 23:48:24,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 23:48:24,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:24,883 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] [2022-01-10 23:48:24,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:48:24,884 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:24,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:24,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2119987052, now seen corresponding path program 1 times [2022-01-10 23:48:24,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:24,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001335546] [2022-01-10 23:48:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:24,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:24,971 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 23:48:24,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:24,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001335546] [2022-01-10 23:48:24,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001335546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:24,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:24,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:48:24,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075035755] [2022-01-10 23:48:24,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:24,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:48:24,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:24,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:48:24,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:48:24,974 INFO L87 Difference]: Start difference. First operand 17523 states and 32893 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:48:25,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:25,685 INFO L93 Difference]: Finished difference Result 35018 states and 65748 transitions. [2022-01-10 23:48:25,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:48:25,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-01-10 23:48:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:25,715 INFO L225 Difference]: With dead ends: 35018 [2022-01-10 23:48:25,715 INFO L226 Difference]: Without dead ends: 17523 [2022-01-10 23:48:25,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:48:25,734 INFO L933 BasicCegarLoop]: 32863 mSDtfsCounter, 65742 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65742 SdHoareTripleChecker+Valid, 32906 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:25,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65742 Valid, 32906 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-01-10 23:48:26,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 17523. [2022-01-10 23:48:26,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17523 states, 17513 states have (on average 1.878090561297322) internal successors, (32891), 17522 states have internal predecessors, (32891), 0 states have call successors, (0), 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 23:48:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17523 states to 17523 states and 32891 transitions. [2022-01-10 23:48:26,408 INFO L78 Accepts]: Start accepts. Automaton has 17523 states and 32891 transitions. Word has length 39 [2022-01-10 23:48:26,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:26,415 INFO L470 AbstractCegarLoop]: Abstraction has 17523 states and 32891 transitions. [2022-01-10 23:48:26,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:48:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 17523 states and 32891 transitions. [2022-01-10 23:48:26,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 23:48:26,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:26,416 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 23:48:26,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:48:26,416 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:26,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:26,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1632949562, now seen corresponding path program 1 times [2022-01-10 23:48:26,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:26,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70907103] [2022-01-10 23:48:26,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:26,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:26,489 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 23:48:26,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:26,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70907103] [2022-01-10 23:48:26,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70907103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:26,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:26,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:48:26,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59120676] [2022-01-10 23:48:26,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:26,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:48:26,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:26,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:48:26,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:48:26,491 INFO L87 Difference]: Start difference. First operand 17523 states and 32891 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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 23:48:27,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:27,352 INFO L93 Difference]: Finished difference Result 35018 states and 65745 transitions. [2022-01-10 23:48:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 23:48:27,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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 23:48:27,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:27,519 INFO L225 Difference]: With dead ends: 35018 [2022-01-10 23:48:27,519 INFO L226 Difference]: Without dead ends: 17523 [2022-01-10 23:48:27,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:48:27,538 INFO L933 BasicCegarLoop]: 32863 mSDtfsCounter, 131471 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131471 SdHoareTripleChecker+Valid, 32906 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:27,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131471 Valid, 32906 Invalid, 46 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:27,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-01-10 23:48:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 17523. [2022-01-10 23:48:28,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17523 states, 17513 states have (on average 1.877976360417975) internal successors, (32889), 17522 states have internal predecessors, (32889), 0 states have call successors, (0), 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 23:48:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17523 states to 17523 states and 32889 transitions. [2022-01-10 23:48:28,072 INFO L78 Accepts]: Start accepts. Automaton has 17523 states and 32889 transitions. Word has length 40 [2022-01-10 23:48:28,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:28,073 INFO L470 AbstractCegarLoop]: Abstraction has 17523 states and 32889 transitions. [2022-01-10 23:48:28,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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 23:48:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17523 states and 32889 transitions. [2022-01-10 23:48:28,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 23:48:28,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:28,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:48:28,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:48:28,075 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1600058369, now seen corresponding path program 1 times [2022-01-10 23:48:28,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:28,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117404777] [2022-01-10 23:48:28,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:28,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:28,292 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 23:48:28,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:28,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117404777] [2022-01-10 23:48:28,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117404777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:28,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:28,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:48:28,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491470690] [2022-01-10 23:48:28,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:28,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:48:28,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:28,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:48:28,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:48:28,295 INFO L87 Difference]: Start difference. First operand 17523 states and 32889 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:29,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:29,173 INFO L93 Difference]: Finished difference Result 35018 states and 65742 transitions. [2022-01-10 23:48:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 23:48:29,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-10 23:48:29,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:29,204 INFO L225 Difference]: With dead ends: 35018 [2022-01-10 23:48:29,204 INFO L226 Difference]: Without dead ends: 17523 [2022-01-10 23:48:29,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:48:29,221 INFO L933 BasicCegarLoop]: 32863 mSDtfsCounter, 65734 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65734 SdHoareTripleChecker+Valid, 32916 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:29,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65734 Valid, 32916 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:29,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-01-10 23:48:29,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 17523. [2022-01-10 23:48:29,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17523 states, 17513 states have (on average 1.8778621595386285) internal successors, (32887), 17522 states have internal predecessors, (32887), 0 states have call successors, (0), 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 23:48:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17523 states to 17523 states and 32887 transitions. [2022-01-10 23:48:29,813 INFO L78 Accepts]: Start accepts. Automaton has 17523 states and 32887 transitions. Word has length 41 [2022-01-10 23:48:29,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:29,813 INFO L470 AbstractCegarLoop]: Abstraction has 17523 states and 32887 transitions. [2022-01-10 23:48:29,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 17523 states and 32887 transitions. [2022-01-10 23:48:29,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 23:48:29,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:29,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:48:29,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:48:29,814 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:29,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 236163245, now seen corresponding path program 1 times [2022-01-10 23:48:29,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:29,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999224208] [2022-01-10 23:48:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:29,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:29,885 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 23:48:29,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:29,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999224208] [2022-01-10 23:48:29,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999224208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:29,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:29,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:48:29,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536479161] [2022-01-10 23:48:29,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:29,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:48:29,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:29,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:48:29,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:29,887 INFO L87 Difference]: Start difference. First operand 17523 states and 32887 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:48:37,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:37,515 INFO L93 Difference]: Finished difference Result 145842 states and 273747 transitions. [2022-01-10 23:48:37,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:48:37,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-10 23:48:37,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:37,846 INFO L225 Difference]: With dead ends: 145842 [2022-01-10 23:48:37,846 INFO L226 Difference]: Without dead ends: 128433 [2022-01-10 23:48:37,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:48:37,886 INFO L933 BasicCegarLoop]: 68303 mSDtfsCounter, 222044 mSDsluCounter, 190000 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 824 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222044 SdHoareTripleChecker+Valid, 258303 SdHoareTripleChecker+Invalid, 3415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 824 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:37,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222044 Valid, 258303 Invalid, 3415 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [824 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-10 23:48:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128433 states.