/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:44:14,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:44:14,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:44:14,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:44:14,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:44:14,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:44:14,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:44:14,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:44:14,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:44:14,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:44:14,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:44:14,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:44:14,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:44:14,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:44:14,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:44:14,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:44:14,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:44:14,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:44:14,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:44:14,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:44:14,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:44:14,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:44:14,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:44:14,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:44:14,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:44:14,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:44:14,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:44:14,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:44:14,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:44:14,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:44:14,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:44:14,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:44:14,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:44:14,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:44:14,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:44:14,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:44:14,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:44:14,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:44:14,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:44:14,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:44:14,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:44:14,212 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:44:14,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:44:14,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:44:14,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:44:14,237 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:44:14,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:44:14,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:44:14,238 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:44:14,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:44:14,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:44:14,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:44:14,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:44:14,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:44:14,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:44:14,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:44:14,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:44:14,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:44:14,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:44:14,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:44:14,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:44:14,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:44:14,245 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:44:14,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:44:14,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:44:14,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:44:14,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:44:14,246 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:44:14,246 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:44:14,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:44:14,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:44:14,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:44:14,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:44:14,427 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:44:14,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2022-01-10 23:44:14,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a3687dd/7f2a00fe8ac647ea92ff51efe6c05e61/FLAGb653cc5f8 [2022-01-10 23:44:14,906 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:44:14,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product21.cil.c [2022-01-10 23:44:14,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a3687dd/7f2a00fe8ac647ea92ff51efe6c05e61/FLAGb653cc5f8 [2022-01-10 23:44:14,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2a3687dd/7f2a00fe8ac647ea92ff51efe6c05e61 [2022-01-10 23:44:14,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:44:14,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:44:14,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:44:14,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:44:14,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:44:14,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:44:14" (1/1) ... [2022-01-10 23:44:14,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a4ad69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:14, skipping insertion in model container [2022-01-10 23:44:14,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:44:14" (1/1) ... [2022-01-10 23:44:14,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:44:15,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:44:15,428 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_spec1_product21.cil.c[66510,66523] [2022-01-10 23:44:15,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:15,454 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:44:15,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:44:15,563 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_spec1_product21.cil.c[66510,66523] [2022-01-10 23:44:15,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:15,579 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:44:15,630 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_spec1_product21.cil.c[66510,66523] [2022-01-10 23:44:15,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:15,651 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:44:15,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15 WrapperNode [2022-01-10 23:44:15,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:44:15,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:44:15,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:44:15,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:44:15,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,831 INFO L137 Inliner]: procedures = 94, calls = 340, calls flagged for inlining = 193, calls inlined = 380, statements flattened = 13048 [2022-01-10 23:44:15,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:44:15,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:44:15,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:44:15,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:44:15,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:15,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:44:15,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:44:15,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:44:16,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:44:16,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (1/1) ... [2022-01-10 23:44:16,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:44:16,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:44:16,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:44:16,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:44:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:44:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:44:16,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:44:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:44:16,161 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:44:16,162 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:44:20,615 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:44:20,637 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:44:20,638 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:44:20,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:20 BoogieIcfgContainer [2022-01-10 23:44:20,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:44:20,644 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:44:20,644 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:44:20,645 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:44:20,647 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:20" (1/1) ... [2022-01-10 23:44:21,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:44:21 BasicIcfg [2022-01-10 23:44:21,442 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:44:21,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:44:21,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:44:21,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:44:21,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:44:14" (1/4) ... [2022-01-10 23:44:21,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd838b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:44:21, skipping insertion in model container [2022-01-10 23:44:21,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:15" (2/4) ... [2022-01-10 23:44:21,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd838b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:44:21, skipping insertion in model container [2022-01-10 23:44:21,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:20" (3/4) ... [2022-01-10 23:44:21,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd838b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:44:21, skipping insertion in model container [2022-01-10 23:44:21,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:44:21" (4/4) ... [2022-01-10 23:44:21,447 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product21.cil.cTransformedIcfg [2022-01-10 23:44:21,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:44:21,450 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:44:21,485 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:44:21,490 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:44:21,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:44:21,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 3521 states, 3515 states have (on average 1.8782361308677098) internal successors, (6602), 3520 states have internal predecessors, (6602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:21,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:44:21,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:21,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:21,548 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash 218881915, now seen corresponding path program 1 times [2022-01-10 23:44:21,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:21,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060708071] [2022-01-10 23:44:21,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:21,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:21,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:21,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060708071] [2022-01-10 23:44:21,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060708071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:21,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:21,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:21,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643938762] [2022-01-10 23:44:21,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:21,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:21,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:21,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:21,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:21,900 INFO L87 Difference]: Start difference. First operand has 3521 states, 3515 states have (on average 1.8782361308677098) internal successors, (6602), 3520 states have internal predecessors, (6602), 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 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:22,258 INFO L93 Difference]: Finished difference Result 10468 states and 19646 transitions. [2022-01-10 23:44:22,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:22,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2022-01-10 23:44:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:22,305 INFO L225 Difference]: With dead ends: 10468 [2022-01-10 23:44:22,306 INFO L226 Difference]: Without dead ends: 6949 [2022-01-10 23:44:22,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:22,326 INFO L933 BasicCegarLoop]: 13039 mSDtfsCounter, 6563 mSDsluCounter, 6469 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6563 SdHoareTripleChecker+Valid, 19508 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:22,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6563 Valid, 19508 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:22,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-01-10 23:44:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 3510. [2022-01-10 23:44:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.876747503566334) internal successors, (6578), 3509 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6578 transitions. [2022-01-10 23:44:22,484 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6578 transitions. Word has length 63 [2022-01-10 23:44:22,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:22,485 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6578 transitions. [2022-01-10 23:44:22,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6578 transitions. [2022-01-10 23:44:22,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 23:44:22,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:22,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:22,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:44:22,489 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash -795188, now seen corresponding path program 1 times [2022-01-10 23:44:22,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:22,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661027474] [2022-01-10 23:44:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:22,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:22,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:22,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661027474] [2022-01-10 23:44:22,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661027474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:22,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:22,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:22,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897299476] [2022-01-10 23:44:22,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:22,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:22,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:22,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:22,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:22,559 INFO L87 Difference]: Start difference. First operand 3510 states and 6578 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:22,895 INFO L93 Difference]: Finished difference Result 10373 states and 19454 transitions. [2022-01-10 23:44:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:22,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-01-10 23:44:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:22,920 INFO L225 Difference]: With dead ends: 10373 [2022-01-10 23:44:22,920 INFO L226 Difference]: Without dead ends: 6913 [2022-01-10 23:44:22,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:22,928 INFO L933 BasicCegarLoop]: 12902 mSDtfsCounter, 6465 mSDsluCounter, 6409 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 19311 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:22,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6465 Valid, 19311 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:22,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2022-01-10 23:44:22,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 3510. [2022-01-10 23:44:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.8696148359486449) internal successors, (6553), 3509 states have internal predecessors, (6553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6553 transitions. [2022-01-10 23:44:23,012 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6553 transitions. Word has length 70 [2022-01-10 23:44:23,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:23,013 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6553 transitions. [2022-01-10 23:44:23,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6553 transitions. [2022-01-10 23:44:23,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 23:44:23,016 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:23,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:23,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:44:23,016 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:23,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 597048517, now seen corresponding path program 1 times [2022-01-10 23:44:23,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:23,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415432312] [2022-01-10 23:44:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:23,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:23,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:23,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415432312] [2022-01-10 23:44:23,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415432312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:23,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:23,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:23,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917858729] [2022-01-10 23:44:23,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:23,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:23,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:23,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:23,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:23,071 INFO L87 Difference]: Start difference. First operand 3510 states and 6553 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:23,151 INFO L93 Difference]: Finished difference Result 6949 states and 13008 transitions. [2022-01-10 23:44:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:23,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2022-01-10 23:44:23,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:23,164 INFO L225 Difference]: With dead ends: 6949 [2022-01-10 23:44:23,165 INFO L226 Difference]: Without dead ends: 3510 [2022-01-10 23:44:23,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:23,171 INFO L933 BasicCegarLoop]: 6534 mSDtfsCounter, 6542 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6542 SdHoareTripleChecker+Valid, 6541 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:23,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6542 Valid, 6541 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-01-10 23:44:23,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3510. [2022-01-10 23:44:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.8690442225392296) internal successors, (6551), 3509 states have internal predecessors, (6551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6551 transitions. [2022-01-10 23:44:23,239 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6551 transitions. Word has length 73 [2022-01-10 23:44:23,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:23,240 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6551 transitions. [2022-01-10 23:44:23,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6551 transitions. [2022-01-10 23:44:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 23:44:23,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:23,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:23,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:44:23,243 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 23:44:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:23,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1204319647, now seen corresponding path program 1 times [2022-01-10 23:44:23,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:23,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705670988] [2022-01-10 23:44:23,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:23,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:23,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:23,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705670988] [2022-01-10 23:44:23,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705670988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:23,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:23,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:23,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59037557] [2022-01-10 23:44:23,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:23,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:23,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:23,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:23,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:23,301 INFO L87 Difference]: Start difference. First operand 3510 states and 6551 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:23,460 INFO L93 Difference]: Finished difference Result 6913 states and 12935 transitions. [2022-01-10 23:44:23,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:23,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2022-01-10 23:44:23,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:23,472 INFO L225 Difference]: With dead ends: 6913 [2022-01-10 23:44:23,472 INFO L226 Difference]: Without dead ends: 3510 [2022-01-10 23:44:23,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:23,478 INFO L933 BasicCegarLoop]: 6456 mSDtfsCounter, 6523 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 6471 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:23,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6523 Valid, 6471 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:23,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-01-10 23:44:23,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3510. [2022-01-10 23:44:23,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 3505 states have (on average 1.866191155492154) internal successors, (6541), 3509 states have internal predecessors, (6541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 6541 transitions. [2022-01-10 23:44:23,582 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 6541 transitions. Word has length 75 [2022-01-10 23:44:23,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:23,582 INFO L470 AbstractCegarLoop]: Abstraction has 3510 states and 6541 transitions. [2022-01-10 23:44:23,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 6541 transitions. [2022-01-10 23:44:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 23:44:23,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:23,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:23,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:44:23,585 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 23:44:23,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:23,586 INFO L85 PathProgramCache]: Analyzing trace with hash -145311063, now seen corresponding path program 1 times [2022-01-10 23:44:23,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:23,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457899114] [2022-01-10 23:44:23,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:23,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:23,640 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 23:44:23,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:23,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457899114] [2022-01-10 23:44:23,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457899114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:23,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:23,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:23,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740119912] [2022-01-10 23:44:23,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:23,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:23,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:23,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:23,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:23,642 INFO L87 Difference]: Start difference. First operand 3510 states and 6541 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:23,826 INFO L93 Difference]: Finished difference Result 8339 states and 15592 transitions. [2022-01-10 23:44:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:23,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 23:44:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:23,851 INFO L225 Difference]: With dead ends: 8339 [2022-01-10 23:44:23,851 INFO L226 Difference]: Without dead ends: 5801 [2022-01-10 23:44:23,856 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 23:44:23,859 INFO L933 BasicCegarLoop]: 6830 mSDtfsCounter, 6448 mSDsluCounter, 4246 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6448 SdHoareTripleChecker+Valid, 11076 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:23,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6448 Valid, 11076 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5801 states. [2022-01-10 23:44:23,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5801 to 5784. [2022-01-10 23:44:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5779 states have (on average 1.8665859145180828) internal successors, (10787), 5783 states have internal predecessors, (10787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:23,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 10787 transitions. [2022-01-10 23:44:24,000 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 10787 transitions. Word has length 77 [2022-01-10 23:44:24,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:24,004 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 10787 transitions. [2022-01-10 23:44:24,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:24,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 10787 transitions. [2022-01-10 23:44:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 23:44:24,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:24,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:24,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:44:24,009 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 23:44:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:24,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1517514261, now seen corresponding path program 1 times [2022-01-10 23:44:24,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:24,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695993548] [2022-01-10 23:44:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:24,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:24,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:24,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695993548] [2022-01-10 23:44:24,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695993548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:24,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:24,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:24,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695082880] [2022-01-10 23:44:24,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:24,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:24,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:24,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:24,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:24,121 INFO L87 Difference]: Start difference. First operand 5784 states and 10787 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:24,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:24,363 INFO L93 Difference]: Finished difference Result 14457 states and 27019 transitions. [2022-01-10 23:44:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:24,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 78 [2022-01-10 23:44:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:24,386 INFO L225 Difference]: With dead ends: 14457 [2022-01-10 23:44:24,387 INFO L226 Difference]: Without dead ends: 10249 [2022-01-10 23:44:24,397 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 23:44:24,400 INFO L933 BasicCegarLoop]: 6480 mSDtfsCounter, 6433 mSDsluCounter, 4265 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6433 SdHoareTripleChecker+Valid, 10745 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:24,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6433 Valid, 10745 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:24,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2022-01-10 23:44:24,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 10232. [2022-01-10 23:44:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10232 states, 10227 states have (on average 1.8667253348978194) internal successors, (19091), 10231 states have internal predecessors, (19091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10232 states to 10232 states and 19091 transitions. [2022-01-10 23:44:24,633 INFO L78 Accepts]: Start accepts. Automaton has 10232 states and 19091 transitions. Word has length 78 [2022-01-10 23:44:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:24,633 INFO L470 AbstractCegarLoop]: Abstraction has 10232 states and 19091 transitions. [2022-01-10 23:44:24,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 10232 states and 19091 transitions. [2022-01-10 23:44:24,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 23:44:24,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:24,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:24,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:44:24,641 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 23:44:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:24,642 INFO L85 PathProgramCache]: Analyzing trace with hash -15343300, now seen corresponding path program 1 times [2022-01-10 23:44:24,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:24,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941033190] [2022-01-10 23:44:24,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:24,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:24,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:24,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941033190] [2022-01-10 23:44:24,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941033190] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:24,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:24,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:24,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358447111] [2022-01-10 23:44:24,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:24,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:24,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:24,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:24,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:24,705 INFO L87 Difference]: Start difference. First operand 10232 states and 19091 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:25,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:25,062 INFO L93 Difference]: Finished difference Result 26493 states and 49484 transitions. [2022-01-10 23:44:25,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:25,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2022-01-10 23:44:25,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:25,100 INFO L225 Difference]: With dead ends: 26493 [2022-01-10 23:44:25,100 INFO L226 Difference]: Without dead ends: 18935 [2022-01-10 23:44:25,111 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 23:44:25,113 INFO L933 BasicCegarLoop]: 6466 mSDtfsCounter, 6418 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6418 SdHoareTripleChecker+Valid, 10750 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:25,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6418 Valid, 10750 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:25,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18935 states. [2022-01-10 23:44:25,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18935 to 18918. [2022-01-10 23:44:25,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18918 states, 18913 states have (on average 1.8659123354306562) internal successors, (35290), 18917 states have internal predecessors, (35290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18918 states to 18918 states and 35290 transitions. [2022-01-10 23:44:25,456 INFO L78 Accepts]: Start accepts. Automaton has 18918 states and 35290 transitions. Word has length 79 [2022-01-10 23:44:25,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:25,456 INFO L470 AbstractCegarLoop]: Abstraction has 18918 states and 35290 transitions. [2022-01-10 23:44:25,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 18918 states and 35290 transitions. [2022-01-10 23:44:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 23:44:25,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:25,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:25,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:44:25,461 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:25,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1460523099, now seen corresponding path program 1 times [2022-01-10 23:44:25,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:25,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745560449] [2022-01-10 23:44:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:25,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:25,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:25,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745560449] [2022-01-10 23:44:25,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745560449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:25,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:25,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:25,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462444466] [2022-01-10 23:44:25,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:25,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:25,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:25,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:25,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:25,509 INFO L87 Difference]: Start difference. First operand 18918 states and 35290 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:26,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:26,115 INFO L93 Difference]: Finished difference Result 50145 states and 93571 transitions. [2022-01-10 23:44:26,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:26,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2022-01-10 23:44:26,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:26,207 INFO L225 Difference]: With dead ends: 50145 [2022-01-10 23:44:26,207 INFO L226 Difference]: Without dead ends: 35877 [2022-01-10 23:44:26,226 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 23:44:26,227 INFO L933 BasicCegarLoop]: 6452 mSDtfsCounter, 6403 mSDsluCounter, 4303 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6403 SdHoareTripleChecker+Valid, 10755 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:26,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6403 Valid, 10755 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:26,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35877 states. [2022-01-10 23:44:26,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35877 to 35860. [2022-01-10 23:44:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35860 states, 35855 states have (on average 1.8640914795704924) internal successors, (66837), 35859 states have internal predecessors, (66837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35860 states to 35860 states and 66837 transitions. [2022-01-10 23:44:26,963 INFO L78 Accepts]: Start accepts. Automaton has 35860 states and 66837 transitions. Word has length 80 [2022-01-10 23:44:26,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:26,963 INFO L470 AbstractCegarLoop]: Abstraction has 35860 states and 66837 transitions. [2022-01-10 23:44:26,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:26,963 INFO L276 IsEmpty]: Start isEmpty. Operand 35860 states and 66837 transitions. [2022-01-10 23:44:26,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:44:26,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:26,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:26,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:44:26,967 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -681318402, now seen corresponding path program 1 times [2022-01-10 23:44:26,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:26,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037506597] [2022-01-10 23:44:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:26,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:27,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:27,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037506597] [2022-01-10 23:44:27,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037506597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:27,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:27,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:27,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728759560] [2022-01-10 23:44:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:27,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:27,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:27,039 INFO L87 Difference]: Start difference. First operand 35860 states and 66837 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:28,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:28,120 INFO L93 Difference]: Finished difference Result 96589 states and 179994 transitions. [2022-01-10 23:44:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:28,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2022-01-10 23:44:28,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:28,343 INFO L225 Difference]: With dead ends: 96589 [2022-01-10 23:44:28,343 INFO L226 Difference]: Without dead ends: 68891 [2022-01-10 23:44:28,401 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 23:44:28,403 INFO L933 BasicCegarLoop]: 6438 mSDtfsCounter, 6388 mSDsluCounter, 4322 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6388 SdHoareTripleChecker+Valid, 10760 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:28,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6388 Valid, 10760 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:28,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68891 states. [2022-01-10 23:44:29,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68891 to 68874. [2022-01-10 23:44:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68874 states, 68869 states have (on average 1.861447095209746) internal successors, (128196), 68873 states have internal predecessors, (128196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68874 states to 68874 states and 128196 transitions. [2022-01-10 23:44:30,064 INFO L78 Accepts]: Start accepts. Automaton has 68874 states and 128196 transitions. Word has length 81 [2022-01-10 23:44:30,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:30,064 INFO L470 AbstractCegarLoop]: Abstraction has 68874 states and 128196 transitions. [2022-01-10 23:44:30,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 68874 states and 128196 transitions. [2022-01-10 23:44:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:44:30,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:30,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:30,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:44:30,068 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:30,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:30,069 INFO L85 PathProgramCache]: Analyzing trace with hash 280295615, now seen corresponding path program 1 times [2022-01-10 23:44:30,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:30,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953149960] [2022-01-10 23:44:30,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:30,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:30,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:30,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953149960] [2022-01-10 23:44:30,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953149960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:30,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:30,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:30,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352919369] [2022-01-10 23:44:30,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:30,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:30,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:30,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:30,124 INFO L87 Difference]: Start difference. First operand 68874 states and 128196 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:31,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:31,600 INFO L93 Difference]: Finished difference Result 191947 states and 357153 transitions. [2022-01-10 23:44:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:31,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2022-01-10 23:44:31,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:32,014 INFO L225 Difference]: With dead ends: 191947 [2022-01-10 23:44:32,014 INFO L226 Difference]: Without dead ends: 137550 [2022-01-10 23:44:32,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:32,070 INFO L933 BasicCegarLoop]: 9630 mSDtfsCounter, 6449 mSDsluCounter, 6379 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6449 SdHoareTripleChecker+Valid, 16009 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:32,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6449 Valid, 16009 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137550 states. [2022-01-10 23:44:34,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137550 to 137550. [2022-01-10 23:44:34,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137550 states, 137545 states have (on average 1.8615798465956597) internal successors, (256051), 137549 states have internal predecessors, (256051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137550 states to 137550 states and 256051 transitions. [2022-01-10 23:44:34,927 INFO L78 Accepts]: Start accepts. Automaton has 137550 states and 256051 transitions. Word has length 81 [2022-01-10 23:44:34,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:34,927 INFO L470 AbstractCegarLoop]: Abstraction has 137550 states and 256051 transitions. [2022-01-10 23:44:34,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:34,927 INFO L276 IsEmpty]: Start isEmpty. Operand 137550 states and 256051 transitions. [2022-01-10 23:44:34,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 23:44:34,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:34,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:34,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:44:34,932 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:34,933 INFO L85 PathProgramCache]: Analyzing trace with hash 99249632, now seen corresponding path program 1 times [2022-01-10 23:44:34,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:34,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226951736] [2022-01-10 23:44:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:34,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:34,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:34,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:34,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226951736] [2022-01-10 23:44:34,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226951736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:34,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:34,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:34,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075653561] [2022-01-10 23:44:34,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:34,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:34,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:34,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:34,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:34,989 INFO L87 Difference]: Start difference. First operand 137550 states and 256051 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:38,214 INFO L93 Difference]: Finished difference Result 383180 states and 713026 transitions. [2022-01-10 23:44:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2022-01-10 23:44:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:39,017 INFO L225 Difference]: With dead ends: 383180 [2022-01-10 23:44:39,018 INFO L226 Difference]: Without dead ends: 274720 [2022-01-10 23:44:39,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:39,125 INFO L933 BasicCegarLoop]: 6468 mSDtfsCounter, 6384 mSDsluCounter, 6382 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6384 SdHoareTripleChecker+Valid, 12850 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:39,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6384 Valid, 12850 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274720 states. [2022-01-10 23:44:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274720 to 274718. [2022-01-10 23:44:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274718 states, 274713 states have (on average 1.8616192171466222) internal successors, (511411), 274717 states have internal predecessors, (511411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274718 states to 274718 states and 511411 transitions. [2022-01-10 23:44:44,912 INFO L78 Accepts]: Start accepts. Automaton has 274718 states and 511411 transitions. Word has length 82 [2022-01-10 23:44:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:44,913 INFO L470 AbstractCegarLoop]: Abstraction has 274718 states and 511411 transitions. [2022-01-10 23:44:44,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 274718 states and 511411 transitions. [2022-01-10 23:44:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 23:44:44,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:44,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:44,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:44:44,923 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:44,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:44,924 INFO L85 PathProgramCache]: Analyzing trace with hash 135289136, now seen corresponding path program 1 times [2022-01-10 23:44:44,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:44,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370487004] [2022-01-10 23:44:44,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:44,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:45,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:45,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370487004] [2022-01-10 23:44:45,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370487004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:45,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:45,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:45,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872507569] [2022-01-10 23:44:45,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:45,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:45,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:45,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:45,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:45,020 INFO L87 Difference]: Start difference. First operand 274718 states and 511411 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:02,291 INFO L93 Difference]: Finished difference Result 1647524 states and 3067261 transitions. [2022-01-10 23:45:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:45:02,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 82 [2022-01-10 23:45:02,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:06,888 INFO L225 Difference]: With dead ends: 1647524 [2022-01-10 23:45:06,888 INFO L226 Difference]: Without dead ends: 1372835 [2022-01-10 23:45:07,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:45:07,340 INFO L933 BasicCegarLoop]: 25431 mSDtfsCounter, 19133 mSDsluCounter, 31753 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19133 SdHoareTripleChecker+Valid, 57184 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:07,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19133 Valid, 57184 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372835 states.