/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:58:40,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:58:40,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:58:40,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:58:40,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:58:40,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:58:40,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:58:40,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:58:40,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:58:40,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:58:40,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:58:40,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:58:40,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:58:40,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:58:40,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:58:40,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:58:40,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:58:40,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:58:40,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:58:40,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:58:40,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:58:40,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:58:40,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:58:40,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:58:40,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:58:40,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:58:40,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:58:40,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:58:40,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:58:40,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:58:40,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:58:40,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:58:40,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:58:40,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:58:40,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:58:40,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:58:40,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:58:40,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:58:40,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:58:40,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:58:40,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:58:40,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:58:40,139 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:58:40,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:58:40,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:58:40,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:58:40,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:58:40,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:58:40,141 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:58:40,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:58:40,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:58:40,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:58:40,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:58:40,143 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:58:40,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:58:40,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:58:40,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:58:40,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:58:40,143 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:58:40,144 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:58:40,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:58:40,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:58:40,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:58:40,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:58:40,330 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:58:40,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product26.cil.c [2022-01-10 17:58:40,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7aff1ca0/47e0714471a04b93bd8a3e1da2c88225/FLAG63bfbd4d6 [2022-01-10 17:58:40,808 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:58:40,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product26.cil.c [2022-01-10 17:58:40,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7aff1ca0/47e0714471a04b93bd8a3e1da2c88225/FLAG63bfbd4d6 [2022-01-10 17:58:40,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7aff1ca0/47e0714471a04b93bd8a3e1da2c88225 [2022-01-10 17:58:40,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:58:40,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:58:40,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:58:40,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:58:40,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:58:40,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:40" (1/1) ... [2022-01-10 17:58:40,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f79ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:40, skipping insertion in model container [2022-01-10 17:58:40,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:40" (1/1) ... [2022-01-10 17:58:40,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:58:40,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:58:41,168 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_spec9_product26.cil.c[46529,46542] [2022-01-10 17:58:41,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:58:41,235 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:58:41,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:58:41,293 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_spec9_product26.cil.c[46529,46542] [2022-01-10 17:58:41,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:58:41,330 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:58:41,407 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_spec9_product26.cil.c[46529,46542] [2022-01-10 17:58:41,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:58:41,457 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:58:41,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41 WrapperNode [2022-01-10 17:58:41,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:58:41,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:58:41,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:58:41,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:58:41,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,674 INFO L137 Inliner]: procedures = 95, calls = 337, calls flagged for inlining = 189, calls inlined = 556, statements flattened = 17245 [2022-01-10 17:58:41,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:58:41,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:58:41,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:58:41,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:58:41,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:41,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:42,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:58:42,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:58:42,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:58:42,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:58:42,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (1/1) ... [2022-01-10 17:58:42,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:58:42,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:58:42,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 17:58:42,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 17:58:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:58:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:58:42,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:58:42,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:58:42,315 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:58:42,316 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:58:47,895 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:58:47,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:58:47,925 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:58:47,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:47 BoogieIcfgContainer [2022-01-10 17:58:47,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:58:47,931 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:58:47,931 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:58:47,932 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:58:47,934 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:47" (1/1) ... [2022-01-10 17:58:49,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:58:49 BasicIcfg [2022-01-10 17:58:49,108 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:58:49,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:58:49,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:58:49,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:58:49,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:58:40" (1/4) ... [2022-01-10 17:58:49,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700c5240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:49, skipping insertion in model container [2022-01-10 17:58:49,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:41" (2/4) ... [2022-01-10 17:58:49,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700c5240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:49, skipping insertion in model container [2022-01-10 17:58:49,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:47" (3/4) ... [2022-01-10 17:58:49,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700c5240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:58:49, skipping insertion in model container [2022-01-10 17:58:49,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:58:49" (4/4) ... [2022-01-10 17:58:49,115 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product26.cil.cTransformedIcfg [2022-01-10 17:58:49,119 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:58:49,119 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 17:58:49,172 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:58:49,178 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:58:49,178 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 17:58:49,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 4994 states, 4988 states have (on average 1.8710906174819566) internal successors, (9333), 4993 states have internal predecessors, (9333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 17:58:49,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:49,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:58:49,252 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 17:58:49,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:49,255 INFO L85 PathProgramCache]: Analyzing trace with hash -298232121, now seen corresponding path program 1 times [2022-01-10 17:58:49,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:49,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142407387] [2022-01-10 17:58:49,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:49,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:49,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:49,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142407387] [2022-01-10 17:58:49,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142407387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:49,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:49,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:58:49,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138075345] [2022-01-10 17:58:49,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:49,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:49,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:49,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:49,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:49,601 INFO L87 Difference]: Start difference. First operand has 4994 states, 4988 states have (on average 1.8710906174819566) internal successors, (9333), 4993 states have internal predecessors, (9333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:49,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:49,937 INFO L93 Difference]: Finished difference Result 9973 states and 18643 transitions. [2022-01-10 17:58:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:49,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-01-10 17:58:49,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:49,974 INFO L225 Difference]: With dead ends: 9973 [2022-01-10 17:58:49,974 INFO L226 Difference]: Without dead ends: 4983 [2022-01-10 17:58:49,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:49,993 INFO L933 BasicCegarLoop]: 9312 mSDtfsCounter, 9307 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9307 SdHoareTripleChecker+Valid, 9323 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 17:58:49,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9307 Valid, 9323 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2022-01-10 17:58:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 4983. [2022-01-10 17:58:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 4978 states have (on average 1.8700281237444758) internal successors, (9309), 4982 states have internal predecessors, (9309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 9309 transitions. [2022-01-10 17:58:50,152 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 9309 transitions. Word has length 32 [2022-01-10 17:58:50,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:50,153 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 9309 transitions. [2022-01-10 17:58:50,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 9309 transitions. [2022-01-10 17:58:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 17:58:50,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:50,159 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 17:58:50,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:58:50,159 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 17:58:50,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:50,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1849034763, now seen corresponding path program 1 times [2022-01-10 17:58:50,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:50,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922597302] [2022-01-10 17:58:50,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:50,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:50,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:50,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:50,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922597302] [2022-01-10 17:58:50,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922597302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:50,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:50,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:58:50,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40635814] [2022-01-10 17:58:50,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:50,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:50,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:50,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:50,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:50,255 INFO L87 Difference]: Start difference. First operand 4983 states and 9309 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 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 17:58:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:50,418 INFO L93 Difference]: Finished difference Result 9916 states and 18532 transitions. [2022-01-10 17:58:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:50,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 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 17:58:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:50,435 INFO L225 Difference]: With dead ends: 9916 [2022-01-10 17:58:50,435 INFO L226 Difference]: Without dead ends: 4983 [2022-01-10 17:58:50,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:50,443 INFO L933 BasicCegarLoop]: 9249 mSDtfsCounter, 9267 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9267 SdHoareTripleChecker+Valid, 9264 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 17:58:50,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9267 Valid, 9264 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:58:50,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2022-01-10 17:58:50,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 4983. [2022-01-10 17:58:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4983 states, 4978 states have (on average 1.8650060265166735) internal successors, (9284), 4982 states have internal predecessors, (9284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 9284 transitions. [2022-01-10 17:58:50,539 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 9284 transitions. Word has length 39 [2022-01-10 17:58:50,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:50,539 INFO L470 AbstractCegarLoop]: Abstraction has 4983 states and 9284 transitions. [2022-01-10 17:58:50,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 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 17:58:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 9284 transitions. [2022-01-10 17:58:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 17:58:50,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:50,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:58:50,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:58:50,541 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 17:58:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1698209924, now seen corresponding path program 1 times [2022-01-10 17:58:50,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:50,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669534702] [2022-01-10 17:58:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:50,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:50,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:50,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669534702] [2022-01-10 17:58:50,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669534702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:50,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:50,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:58:50,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783722939] [2022-01-10 17:58:50,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:50,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:50,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:50,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:50,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:50,592 INFO L87 Difference]: Start difference. First operand 4983 states and 9284 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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 17:58:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:50,988 INFO L93 Difference]: Finished difference Result 12953 states and 24196 transitions. [2022-01-10 17:58:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:50,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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 17:58:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:51,019 INFO L225 Difference]: With dead ends: 12953 [2022-01-10 17:58:51,019 INFO L226 Difference]: Without dead ends: 8618 [2022-01-10 17:58:51,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:51,033 INFO L933 BasicCegarLoop]: 9488 mSDtfsCounter, 9012 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9012 SdHoareTripleChecker+Valid, 16400 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:51,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9012 Valid, 16400 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:58:51,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8618 states. [2022-01-10 17:58:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8618 to 8601. [2022-01-10 17:58:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8601 states, 8596 states have (on average 1.8669148441135412) internal successors, (16048), 8600 states have internal predecessors, (16048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:51,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8601 states to 8601 states and 16048 transitions. [2022-01-10 17:58:51,248 INFO L78 Accepts]: Start accepts. Automaton has 8601 states and 16048 transitions. Word has length 42 [2022-01-10 17:58:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:51,248 INFO L470 AbstractCegarLoop]: Abstraction has 8601 states and 16048 transitions. [2022-01-10 17:58:51,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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 17:58:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 8601 states and 16048 transitions. [2022-01-10 17:58:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 17:58:51,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:51,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:58:51,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:58:51,253 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:58:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash 131273358, now seen corresponding path program 1 times [2022-01-10 17:58:51,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:51,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688371717] [2022-01-10 17:58:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:51,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:51,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:51,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688371717] [2022-01-10 17:58:51,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688371717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:51,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:51,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:58:51,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741990974] [2022-01-10 17:58:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:51,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:51,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:51,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:51,300 INFO L87 Difference]: Start difference. First operand 8601 states and 16048 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 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 17:58:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:51,739 INFO L93 Difference]: Finished difference Result 23609 states and 44122 transitions. [2022-01-10 17:58:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 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 17:58:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:51,793 INFO L225 Difference]: With dead ends: 23609 [2022-01-10 17:58:51,793 INFO L226 Difference]: Without dead ends: 15658 [2022-01-10 17:58:51,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:51,814 INFO L933 BasicCegarLoop]: 9064 mSDtfsCounter, 8889 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8889 SdHoareTripleChecker+Valid, 15976 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:51,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8889 Valid, 15976 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:58:51,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15658 states. [2022-01-10 17:58:52,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15658 to 15641. [2022-01-10 17:58:52,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15641 states, 15636 states have (on average 1.8673573804041954) internal successors, (29198), 15640 states have internal predecessors, (29198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15641 states to 15641 states and 29198 transitions. [2022-01-10 17:58:52,157 INFO L78 Accepts]: Start accepts. Automaton has 15641 states and 29198 transitions. Word has length 43 [2022-01-10 17:58:52,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:52,157 INFO L470 AbstractCegarLoop]: Abstraction has 15641 states and 29198 transitions. [2022-01-10 17:58:52,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 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 17:58:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15641 states and 29198 transitions. [2022-01-10 17:58:52,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 17:58:52,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:52,159 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] [2022-01-10 17:58:52,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:58:52,160 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:58:52,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:52,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1218963540, now seen corresponding path program 1 times [2022-01-10 17:58:52,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:52,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393272512] [2022-01-10 17:58:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:52,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:52,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:52,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393272512] [2022-01-10 17:58:52,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393272512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:52,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:52,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:58:52,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744290821] [2022-01-10 17:58:52,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:52,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:52,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:52,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:52,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:52,216 INFO L87 Difference]: Start difference. First operand 15641 states and 29198 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:52,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:52,785 INFO L93 Difference]: Finished difference Result 44271 states and 82708 transitions. [2022-01-10 17:58:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:52,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-01-10 17:58:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:52,859 INFO L225 Difference]: With dead ends: 44271 [2022-01-10 17:58:52,859 INFO L226 Difference]: Without dead ends: 29282 [2022-01-10 17:58:52,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:52,886 INFO L933 BasicCegarLoop]: 8948 mSDtfsCounter, 8770 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8770 SdHoareTripleChecker+Valid, 15860 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:52,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8770 Valid, 15860 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:58:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29282 states. [2022-01-10 17:58:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29282 to 29265. [2022-01-10 17:58:53,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29265 states, 29260 states have (on average 1.8662337662337662) internal successors, (54606), 29264 states have internal predecessors, (54606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29265 states to 29265 states and 54606 transitions. [2022-01-10 17:58:53,585 INFO L78 Accepts]: Start accepts. Automaton has 29265 states and 54606 transitions. Word has length 44 [2022-01-10 17:58:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:53,585 INFO L470 AbstractCegarLoop]: Abstraction has 29265 states and 54606 transitions. [2022-01-10 17:58:53,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 29265 states and 54606 transitions. [2022-01-10 17:58:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 17:58:53,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:53,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:58:53,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:58:53,587 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:58:53,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:53,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1969030053, now seen corresponding path program 1 times [2022-01-10 17:58:53,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:53,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705283550] [2022-01-10 17:58:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:53,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:53,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:53,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705283550] [2022-01-10 17:58:53,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705283550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:53,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:53,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:58:53,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242616200] [2022-01-10 17:58:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:53,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:53,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:53,642 INFO L87 Difference]: Start difference. First operand 29265 states and 54606 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 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 17:58:54,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:54,461 INFO L93 Difference]: Finished difference Result 84165 states and 157076 transitions. [2022-01-10 17:58:54,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:54,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 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 17:58:54,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:54,605 INFO L225 Difference]: With dead ends: 84165 [2022-01-10 17:58:54,605 INFO L226 Difference]: Without dead ends: 55554 [2022-01-10 17:58:54,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:54,661 INFO L933 BasicCegarLoop]: 8834 mSDtfsCounter, 8655 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8655 SdHoareTripleChecker+Valid, 15746 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:54,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8655 Valid, 15746 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:58:54,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55554 states. [2022-01-10 17:58:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55554 to 55537. [2022-01-10 17:58:55,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55537 states, 55532 states have (on average 1.8638982928761796) internal successors, (103506), 55536 states have internal predecessors, (103506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:58:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55537 states to 55537 states and 103506 transitions. [2022-01-10 17:58:56,095 INFO L78 Accepts]: Start accepts. Automaton has 55537 states and 103506 transitions. Word has length 45 [2022-01-10 17:58:56,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:58:56,096 INFO L470 AbstractCegarLoop]: Abstraction has 55537 states and 103506 transitions. [2022-01-10 17:58:56,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 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 17:58:56,096 INFO L276 IsEmpty]: Start isEmpty. Operand 55537 states and 103506 transitions. [2022-01-10 17:58:56,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 17:58:56,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:58:56,099 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 17:58:56,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:58:56,099 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:58:56,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:58:56,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1164601096, now seen corresponding path program 1 times [2022-01-10 17:58:56,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:58:56,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707025931] [2022-01-10 17:58:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:58:56,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:58:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:58:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:58:56,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:58:56,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707025931] [2022-01-10 17:58:56,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707025931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:58:56,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:58:56,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:58:56,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951703327] [2022-01-10 17:58:56,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:58:56,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:58:56,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:58:56,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:58:56,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:56,304 INFO L87 Difference]: Start difference. First operand 55537 states and 103506 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 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 17:58:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:58:57,712 INFO L93 Difference]: Finished difference Result 160963 states and 299940 transitions. [2022-01-10 17:58:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:58:57,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 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 17:58:57,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:58:58,143 INFO L225 Difference]: With dead ends: 160963 [2022-01-10 17:58:58,143 INFO L226 Difference]: Without dead ends: 106082 [2022-01-10 17:58:58,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:58:58,212 INFO L933 BasicCegarLoop]: 8724 mSDtfsCounter, 8544 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8544 SdHoareTripleChecker+Valid, 15636 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:58:58,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8544 Valid, 15636 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:58:58,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106082 states. [2022-01-10 17:59:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106082 to 106065. [2022-01-10 17:59:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106065 states, 106060 states have (on average 1.8607014897227985) internal successors, (197346), 106064 states have internal predecessors, (197346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:59:00,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106065 states to 106065 states and 197346 transitions. [2022-01-10 17:59:00,698 INFO L78 Accepts]: Start accepts. Automaton has 106065 states and 197346 transitions. Word has length 46 [2022-01-10 17:59:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:59:00,699 INFO L470 AbstractCegarLoop]: Abstraction has 106065 states and 197346 transitions. [2022-01-10 17:59:00,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 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 17:59:00,699 INFO L276 IsEmpty]: Start isEmpty. Operand 106065 states and 197346 transitions. [2022-01-10 17:59:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 17:59:00,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:59:00,701 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 17:59:00,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:59:00,701 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 17:59:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:59:00,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1229960770, now seen corresponding path program 1 times [2022-01-10 17:59:00,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:59:00,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601437381] [2022-01-10 17:59:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:59:00,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:59:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:59:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:59:00,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:59:00,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601437381] [2022-01-10 17:59:00,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601437381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:59:00,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:59:00,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 17:59:00,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538553675] [2022-01-10 17:59:00,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:59:00,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:59:00,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:59:00,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:59:00,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:59:00,742 INFO L87 Difference]: Start difference. First operand 106065 states and 197346 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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 17:59:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:59:03,544 INFO L93 Difference]: Finished difference Result 308449 states and 573668 transitions. [2022-01-10 17:59:03,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:59:03,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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 17:59:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:59:04,136 INFO L225 Difference]: With dead ends: 308449 [2022-01-10 17:59:04,136 INFO L226 Difference]: Without dead ends: 203042 [2022-01-10 17:59:04,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:59:04,223 INFO L933 BasicCegarLoop]: 8618 mSDtfsCounter, 8437 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8437 SdHoareTripleChecker+Valid, 15530 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:59:04,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8437 Valid, 15530 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:59:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203042 states. [2022-01-10 17:59:07,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203042 to 203025. [2022-01-10 17:59:07,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203025 states, 203020 states have (on average 1.856871244212393) internal successors, (376982), 203024 states have internal predecessors, (376982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:59:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203025 states to 203025 states and 376982 transitions. [2022-01-10 17:59:08,726 INFO L78 Accepts]: Start accepts. Automaton has 203025 states and 376982 transitions. Word has length 47 [2022-01-10 17:59:08,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:59:08,727 INFO L470 AbstractCegarLoop]: Abstraction has 203025 states and 376982 transitions. [2022-01-10 17:59:08,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 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 17:59:08,727 INFO L276 IsEmpty]: Start isEmpty. Operand 203025 states and 376982 transitions. [2022-01-10 17:59:08,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 17:59:08,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:59:08,728 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 17:59:08,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:59:08,728 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 17:59:08,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:59:08,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1359043489, now seen corresponding path program 1 times [2022-01-10 17:59:08,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:59:08,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300882430] [2022-01-10 17:59:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:59:08,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:59:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:59:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:59:08,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:59:08,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300882430] [2022-01-10 17:59:08,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300882430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:59:08,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:59:08,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:59:08,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530822211] [2022-01-10 17:59:08,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:59:08,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:59:08,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:59:08,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:59:08,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:59:08,782 INFO L87 Difference]: Start difference. First operand 203025 states and 376982 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 17:59:13,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:59:13,871 INFO L93 Difference]: Finished difference Result 558551 states and 1036258 transitions. [2022-01-10 17:59:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:59:13,871 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 17:59:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:59:15,102 INFO L225 Difference]: With dead ends: 558551 [2022-01-10 17:59:15,103 INFO L226 Difference]: Without dead ends: 405190 [2022-01-10 17:59:15,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:59:15,250 INFO L933 BasicCegarLoop]: 9516 mSDtfsCounter, 8537 mSDsluCounter, 6985 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8537 SdHoareTripleChecker+Valid, 16501 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:59:15,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8537 Valid, 16501 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:59:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405190 states. [2022-01-10 17:59:22,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405190 to 405190. [2022-01-10 17:59:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405190 states, 405185 states have (on average 1.8566161136271087) internal successors, (752273), 405189 states have internal predecessors, (752273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:59:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405190 states to 405190 states and 752273 transitions. [2022-01-10 17:59:24,170 INFO L78 Accepts]: Start accepts. Automaton has 405190 states and 752273 transitions. Word has length 47 [2022-01-10 17:59:24,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:59:24,170 INFO L470 AbstractCegarLoop]: Abstraction has 405190 states and 752273 transitions. [2022-01-10 17:59:24,170 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 17:59:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 405190 states and 752273 transitions. [2022-01-10 17:59:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 17:59:24,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:59:24,172 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 17:59:24,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:59:24,172 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:59:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:59:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash -819299727, now seen corresponding path program 1 times [2022-01-10 17:59:24,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:59:24,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781339011] [2022-01-10 17:59:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:59:24,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:59:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:59:24,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 17:59:24,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:59:24,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781339011] [2022-01-10 17:59:24,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781339011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:59:24,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:59:24,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:59:24,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117206721] [2022-01-10 17:59:24,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:59:24,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:59:24,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:59:24,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:59:24,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:59:24,221 INFO L87 Difference]: Start difference. First operand 405190 states and 752273 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)