/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:06:03,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:06:03,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:06:03,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:06:03,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:06:03,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:06:03,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:06:03,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:06:03,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:06:03,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:06:03,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:06:03,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:06:03,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:06:03,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:06:03,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:06:03,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:06:03,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:06:03,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:06:03,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:06:03,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:06:03,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:06:03,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:06:03,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:06:03,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:06:03,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:06:03,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:06:03,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:06:03,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:06:03,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:06:03,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:06:03,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:06:03,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:06:03,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:06:03,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:06:03,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:06:03,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:06:03,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:06:03,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:06:03,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:06:03,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:06:03,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:06:03,161 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:06:03,205 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:06:03,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:06:03,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:06:03,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:06:03,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:06:03,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:06:03,207 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:06:03,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:06:03,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:06:03,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:06:03,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:06:03,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:06:03,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:06:03,209 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:06:03,209 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:06:03,209 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:06:03,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:06:03,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:06:03,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:06:03,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:06:03,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:06:03,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:06:03,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:06:03,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:06:03,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:06:03,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:06:03,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:06:03,211 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:06:03,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:06:03,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:06:03,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:06:03,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:06:03,213 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:06:03,213 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:06:03,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:06:03,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:06:03,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:06:03,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:06:03,478 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:06:03,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2022-01-10 12:06:03,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52cf44611/fe0b7dcf25674b2b98c61228009fb341/FLAG6dfc105d9 [2022-01-10 12:06:04,062 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:06:04,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2022-01-10 12:06:04,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52cf44611/fe0b7dcf25674b2b98c61228009fb341/FLAG6dfc105d9 [2022-01-10 12:06:04,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52cf44611/fe0b7dcf25674b2b98c61228009fb341 [2022-01-10 12:06:04,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:06:04,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:06:04,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:06:04,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:06:04,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:06:04,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:04" (1/1) ... [2022-01-10 12:06:04,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df1a875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:04, skipping insertion in model container [2022-01-10 12:06:04,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:04" (1/1) ... [2022-01-10 12:06:04,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:06:04,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:06:04,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c[35995,36008] [2022-01-10 12:06:05,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:06:05,070 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:06:05,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:06:05,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c[35995,36008] [2022-01-10 12:06:05,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:06:05,199 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:06:05,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c[35995,36008] [2022-01-10 12:06:05,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:06:05,300 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:06:05,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05 WrapperNode [2022-01-10 12:06:05,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:06:05,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:06:05,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:06:05,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:06:05,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,507 INFO L137 Inliner]: procedures = 98, calls = 347, calls flagged for inlining = 200, calls inlined = 422, statements flattened = 13752 [2022-01-10 12:06:05,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:06:05,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:06:05,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:06:05,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:06:05,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:06:05,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:06:05,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:06:05,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:06:05,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (1/1) ... [2022-01-10 12:06:05,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:06:05,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:06:05,841 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 12:06:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:06:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:06:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:06:05,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:06:05,854 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 12:06:06,069 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:06:06,070 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:06:11,972 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:06:12,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:06:12,000 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:06:12,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:06:12 BoogieIcfgContainer [2022-01-10 12:06:12,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:06:12,009 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:06:12,009 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:06:12,010 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:06:12,012 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:06:12" (1/1) ... [2022-01-10 12:06:13,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:06:13 BasicIcfg [2022-01-10 12:06:13,050 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:06:13,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:06:13,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:06:13,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:06:13,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:06:04" (1/4) ... [2022-01-10 12:06:13,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2763538a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:06:13, skipping insertion in model container [2022-01-10 12:06:13,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:05" (2/4) ... [2022-01-10 12:06:13,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2763538a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:06:13, skipping insertion in model container [2022-01-10 12:06:13,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:06:12" (3/4) ... [2022-01-10 12:06:13,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2763538a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:06:13, skipping insertion in model container [2022-01-10 12:06:13,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:06:13" (4/4) ... [2022-01-10 12:06:13,057 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product23.cil.cTransformedIcfg [2022-01-10 12:06:13,062 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:06:13,062 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 12:06:13,123 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:06:13,131 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 12:06:13,131 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 12:06:13,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 3640 states, 3634 states have (on average 1.8709411117226198) internal successors, (6799), 3639 states have internal predecessors, (6799), 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 12:06:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 12:06:13,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:13,229 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] [2022-01-10 12:06:13,229 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 12:06:13,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:13,238 INFO L85 PathProgramCache]: Analyzing trace with hash -138128181, now seen corresponding path program 1 times [2022-01-10 12:06:13,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:13,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491163694] [2022-01-10 12:06:13,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:13,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:13,654 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 12:06:13,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:13,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491163694] [2022-01-10 12:06:13,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491163694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:13,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:13,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:13,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453190113] [2022-01-10 12:06:13,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:13,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:13,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:13,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:13,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:13,722 INFO L87 Difference]: Start difference. First operand has 3640 states, 3634 states have (on average 1.8709411117226198) internal successors, (6799), 3639 states have internal predecessors, (6799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 12:06:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:14,016 INFO L93 Difference]: Finished difference Result 7265 states and 13575 transitions. [2022-01-10 12:06:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:14,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-01-10 12:06:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:14,059 INFO L225 Difference]: With dead ends: 7265 [2022-01-10 12:06:14,059 INFO L226 Difference]: Without dead ends: 3629 [2022-01-10 12:06:14,080 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 12:06:14,086 INFO L933 BasicCegarLoop]: 6778 mSDtfsCounter, 6773 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6773 SdHoareTripleChecker+Valid, 6789 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:14,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6773 Valid, 6789 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2022-01-10 12:06:14,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3629. [2022-01-10 12:06:14,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3624 states have (on average 1.8694812362030906) internal successors, (6775), 3628 states have internal predecessors, (6775), 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 12:06:14,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 6775 transitions. [2022-01-10 12:06:14,278 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 6775 transitions. Word has length 51 [2022-01-10 12:06:14,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:14,278 INFO L470 AbstractCegarLoop]: Abstraction has 3629 states and 6775 transitions. [2022-01-10 12:06:14,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 12:06:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 6775 transitions. [2022-01-10 12:06:14,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:06:14,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:14,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:14,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:06:14,284 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 12:06:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:14,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1350356560, now seen corresponding path program 1 times [2022-01-10 12:06:14,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:14,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523013948] [2022-01-10 12:06:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:14,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:14,441 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 12:06:14,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:14,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523013948] [2022-01-10 12:06:14,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523013948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:14,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:14,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:14,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502510616] [2022-01-10 12:06:14,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:14,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:14,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:14,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:14,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:14,451 INFO L87 Difference]: Start difference. First operand 3629 states and 6775 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:14,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:14,753 INFO L93 Difference]: Finished difference Result 7208 states and 13464 transitions. [2022-01-10 12:06:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:14,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 12:06:14,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:14,772 INFO L225 Difference]: With dead ends: 7208 [2022-01-10 12:06:14,773 INFO L226 Difference]: Without dead ends: 3629 [2022-01-10 12:06:14,779 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 12:06:14,780 INFO L933 BasicCegarLoop]: 6715 mSDtfsCounter, 6733 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6733 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:14,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6733 Valid, 6730 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:06:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2022-01-10 12:06:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3629. [2022-01-10 12:06:14,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3624 states have (on average 1.8625827814569536) internal successors, (6750), 3628 states have internal predecessors, (6750), 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 12:06:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 6750 transitions. [2022-01-10 12:06:14,897 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 6750 transitions. Word has length 58 [2022-01-10 12:06:14,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:14,898 INFO L470 AbstractCegarLoop]: Abstraction has 3629 states and 6750 transitions. [2022-01-10 12:06:14,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 6750 transitions. [2022-01-10 12:06:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 12:06:14,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:14,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:14,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:06:14,903 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 12:06:14,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:14,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1089444315, now seen corresponding path program 1 times [2022-01-10 12:06:14,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:14,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118513385] [2022-01-10 12:06:14,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:14,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:15,018 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 12:06:15,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:15,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118513385] [2022-01-10 12:06:15,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118513385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:15,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:15,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:15,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962659642] [2022-01-10 12:06:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:15,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:15,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:15,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:15,021 INFO L87 Difference]: Start difference. First operand 3629 states and 6750 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:15,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:15,332 INFO L93 Difference]: Finished difference Result 7907 states and 14745 transitions. [2022-01-10 12:06:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:15,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-10 12:06:15,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:15,365 INFO L225 Difference]: With dead ends: 7907 [2022-01-10 12:06:15,365 INFO L226 Difference]: Without dead ends: 6069 [2022-01-10 12:06:15,376 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 12:06:15,381 INFO L933 BasicCegarLoop]: 7215 mSDtfsCounter, 6684 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6684 SdHoareTripleChecker+Valid, 11776 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:15,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6684 Valid, 11776 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:06:15,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6069 states. [2022-01-10 12:06:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6069 to 6069. [2022-01-10 12:06:15,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6064 states have (on average 1.866754617414248) internal successors, (11320), 6068 states have internal predecessors, (11320), 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 12:06:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 11320 transitions. [2022-01-10 12:06:15,599 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 11320 transitions. Word has length 61 [2022-01-10 12:06:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:15,600 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 11320 transitions. [2022-01-10 12:06:15,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 11320 transitions. [2022-01-10 12:06:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 12:06:15,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:15,604 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 12:06:15,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:06:15,605 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:15,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1481141723, now seen corresponding path program 1 times [2022-01-10 12:06:15,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:15,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293565748] [2022-01-10 12:06:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:15,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:15,752 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 12:06:15,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:15,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293565748] [2022-01-10 12:06:15,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293565748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:15,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:15,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:15,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960681973] [2022-01-10 12:06:15,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:15,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:15,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:15,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:15,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:15,755 INFO L87 Difference]: Start difference. First operand 6069 states and 11320 transitions. 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 12:06:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:16,073 INFO L93 Difference]: Finished difference Result 14484 states and 27053 transitions. [2022-01-10 12:06:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:16,074 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 12:06:16,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:16,141 INFO L225 Difference]: With dead ends: 14484 [2022-01-10 12:06:16,142 INFO L226 Difference]: Without dead ends: 10832 [2022-01-10 12:06:16,154 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 12:06:16,160 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 6683 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6683 SdHoareTripleChecker+Valid, 11311 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:16,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6683 Valid, 11311 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:16,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10832 states. [2022-01-10 12:06:16,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10830. [2022-01-10 12:06:16,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10830 states, 10825 states have (on average 1.8691916859122402) internal successors, (20234), 10829 states have internal predecessors, (20234), 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 12:06:16,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10830 states to 10830 states and 20234 transitions. [2022-01-10 12:06:16,531 INFO L78 Accepts]: Start accepts. Automaton has 10830 states and 20234 transitions. Word has length 63 [2022-01-10 12:06:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:16,532 INFO L470 AbstractCegarLoop]: Abstraction has 10830 states and 20234 transitions. [2022-01-10 12:06:16,533 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 12:06:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand 10830 states and 20234 transitions. [2022-01-10 12:06:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 12:06:16,538 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:16,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:16,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:06:16,539 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:16,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:16,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1737466214, now seen corresponding path program 1 times [2022-01-10 12:06:16,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:16,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128946742] [2022-01-10 12:06:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:16,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:16,692 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 12:06:16,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:16,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128946742] [2022-01-10 12:06:16,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128946742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:16,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:16,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:16,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095908567] [2022-01-10 12:06:16,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:16,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:16,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:16,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:16,695 INFO L87 Difference]: Start difference. First operand 10830 states and 20234 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:17,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:17,182 INFO L93 Difference]: Finished difference Result 27388 states and 51198 transitions. [2022-01-10 12:06:17,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:17,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-10 12:06:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:17,259 INFO L225 Difference]: With dead ends: 27388 [2022-01-10 12:06:17,259 INFO L226 Difference]: Without dead ends: 20117 [2022-01-10 12:06:17,285 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 12:06:17,285 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 6671 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6671 SdHoareTripleChecker+Valid, 11314 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:17,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6671 Valid, 11314 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20117 states. [2022-01-10 12:06:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20117 to 20113. [2022-01-10 12:06:17,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20113 states, 20108 states have (on average 1.8703003779590213) internal successors, (37608), 20112 states have internal predecessors, (37608), 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 12:06:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20113 states to 20113 states and 37608 transitions. [2022-01-10 12:06:18,081 INFO L78 Accepts]: Start accepts. Automaton has 20113 states and 37608 transitions. Word has length 64 [2022-01-10 12:06:18,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:18,086 INFO L470 AbstractCegarLoop]: Abstraction has 20113 states and 37608 transitions. [2022-01-10 12:06:18,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 20113 states and 37608 transitions. [2022-01-10 12:06:18,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 12:06:18,092 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:18,092 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] [2022-01-10 12:06:18,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:06:18,093 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:18,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:18,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1973142748, now seen corresponding path program 1 times [2022-01-10 12:06:18,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:18,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017099285] [2022-01-10 12:06:18,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:18,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:18,179 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 12:06:18,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:18,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017099285] [2022-01-10 12:06:18,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017099285] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:18,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:18,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:18,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340917741] [2022-01-10 12:06:18,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:18,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:18,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:18,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:18,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:18,181 INFO L87 Difference]: Start difference. First operand 20113 states and 37608 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 12:06:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:19,160 INFO L93 Difference]: Finished difference Result 52696 states and 98543 transitions. [2022-01-10 12:06:19,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:19,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2022-01-10 12:06:19,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:19,458 INFO L225 Difference]: With dead ends: 52696 [2022-01-10 12:06:19,458 INFO L226 Difference]: Without dead ends: 38206 [2022-01-10 12:06:19,501 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 12:06:19,502 INFO L933 BasicCegarLoop]: 6747 mSDtfsCounter, 6670 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6670 SdHoareTripleChecker+Valid, 11317 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:19,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6670 Valid, 11317 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:06:19,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38206 states. [2022-01-10 12:06:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38206 to 38200. [2022-01-10 12:06:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38200 states, 38195 states have (on average 1.8705589736876556) internal successors, (71446), 38199 states have internal predecessors, (71446), 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 12:06:20,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38200 states to 38200 states and 71446 transitions. [2022-01-10 12:06:20,754 INFO L78 Accepts]: Start accepts. Automaton has 38200 states and 71446 transitions. Word has length 65 [2022-01-10 12:06:20,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:20,754 INFO L470 AbstractCegarLoop]: Abstraction has 38200 states and 71446 transitions. [2022-01-10 12:06:20,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 12:06:20,755 INFO L276 IsEmpty]: Start isEmpty. Operand 38200 states and 71446 transitions. [2022-01-10 12:06:20,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 12:06:20,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:20,761 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] [2022-01-10 12:06:20,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:06:20,762 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:20,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:20,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1037903697, now seen corresponding path program 1 times [2022-01-10 12:06:20,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:20,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770686273] [2022-01-10 12:06:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:20,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:21,001 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 12:06:21,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:21,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770686273] [2022-01-10 12:06:21,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770686273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:21,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:21,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:21,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155684333] [2022-01-10 12:06:21,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:21,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:21,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:21,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:21,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:21,004 INFO L87 Difference]: Start difference. First operand 38200 states and 71446 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 12:06:22,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:22,287 INFO L93 Difference]: Finished difference Result 102312 states and 191339 transitions. [2022-01-10 12:06:22,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:22,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2022-01-10 12:06:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:22,613 INFO L225 Difference]: With dead ends: 102312 [2022-01-10 12:06:22,613 INFO L226 Difference]: Without dead ends: 73416 [2022-01-10 12:06:22,687 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 12:06:22,688 INFO L933 BasicCegarLoop]: 6748 mSDtfsCounter, 6669 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 11321 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:22,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6669 Valid, 11321 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:06:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73416 states. [2022-01-10 12:06:24,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73416 to 73408. [2022-01-10 12:06:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8703050284048335) internal successors, (137286), 73407 states have internal predecessors, (137286), 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 12:06:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 137286 transitions. [2022-01-10 12:06:25,029 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 137286 transitions. Word has length 66 [2022-01-10 12:06:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:25,030 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 137286 transitions. [2022-01-10 12:06:25,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 12:06:25,030 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 137286 transitions. [2022-01-10 12:06:25,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 12:06:25,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:25,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:25,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:06:25,060 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 12:06:25,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:25,061 INFO L85 PathProgramCache]: Analyzing trace with hash -864949528, now seen corresponding path program 1 times [2022-01-10 12:06:25,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:25,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303251970] [2022-01-10 12:06:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:25,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:25,158 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 12:06:25,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:25,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303251970] [2022-01-10 12:06:25,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303251970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:25,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:25,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:25,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033358782] [2022-01-10 12:06:25,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:25,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:25,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:25,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:25,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:25,160 INFO L87 Difference]: Start difference. First operand 73408 states and 137286 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 12:06:27,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:27,395 INFO L93 Difference]: Finished difference Result 149175 states and 278923 transitions. [2022-01-10 12:06:27,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:27,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2022-01-10 12:06:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:27,631 INFO L225 Difference]: With dead ends: 149175 [2022-01-10 12:06:27,631 INFO L226 Difference]: Without dead ends: 77292 [2022-01-10 12:06:27,731 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 12:06:27,732 INFO L933 BasicCegarLoop]: 8376 mSDtfsCounter, 4669 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 12697 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:27,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 12697 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 12:06:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77292 states. [2022-01-10 12:06:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77292 to 73408. [2022-01-10 12:06:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8518452924267401) internal successors, (135931), 73407 states have internal predecessors, (135931), 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 12:06:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 135931 transitions. [2022-01-10 12:06:29,786 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 135931 transitions. Word has length 108 [2022-01-10 12:06:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:29,786 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 135931 transitions. [2022-01-10 12:06:29,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 12:06:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 135931 transitions. [2022-01-10 12:06:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 12:06:29,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:29,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:29,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:06:29,809 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 12:06:29,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1990730798, now seen corresponding path program 1 times [2022-01-10 12:06:29,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:29,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966002702] [2022-01-10 12:06:29,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:29,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:29,891 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 12:06:29,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:29,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966002702] [2022-01-10 12:06:29,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966002702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:29,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:29,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:29,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92958459] [2022-01-10 12:06:29,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:29,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:29,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:29,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:29,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:29,897 INFO L87 Difference]: Start difference. First operand 73408 states and 135931 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 12:06:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:32,186 INFO L93 Difference]: Finished difference Result 151126 states and 279922 transitions. [2022-01-10 12:06:32,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:32,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2022-01-10 12:06:32,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:32,391 INFO L225 Difference]: With dead ends: 151126 [2022-01-10 12:06:32,391 INFO L226 Difference]: Without dead ends: 80529 [2022-01-10 12:06:32,499 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 12:06:32,499 INFO L933 BasicCegarLoop]: 8882 mSDtfsCounter, 4394 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 13521 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:32,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4394 Valid, 13521 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 12:06:32,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80529 states. [2022-01-10 12:06:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80529 to 73408. [2022-01-10 12:06:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8359740065119954) internal successors, (134766), 73407 states have internal predecessors, (134766), 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 12:06:34,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 134766 transitions. [2022-01-10 12:06:34,400 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 134766 transitions. Word has length 113 [2022-01-10 12:06:34,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:34,401 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 134766 transitions. [2022-01-10 12:06:34,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 12:06:34,401 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 134766 transitions. [2022-01-10 12:06:34,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:06:34,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:34,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:06:34,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:06:34,417 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 12:06:34,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:34,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1382374305, now seen corresponding path program 1 times [2022-01-10 12:06:34,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:34,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869365913] [2022-01-10 12:06:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:34,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:34,493 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 12:06:34,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:34,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869365913] [2022-01-10 12:06:34,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869365913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:34,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:34,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:34,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490979915] [2022-01-10 12:06:34,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:34,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:34,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:34,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:34,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:34,495 INFO L87 Difference]: Start difference. First operand 73408 states and 134766 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 12:06:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:36,691 INFO L93 Difference]: Finished difference Result 152750 states and 280854 transitions. [2022-01-10 12:06:36,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:36,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2022-01-10 12:06:36,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:36,869 INFO L225 Difference]: With dead ends: 152750 [2022-01-10 12:06:36,869 INFO L226 Difference]: Without dead ends: 84599 [2022-01-10 12:06:36,932 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 12:06:36,933 INFO L933 BasicCegarLoop]: 9280 mSDtfsCounter, 4241 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4241 SdHoareTripleChecker+Valid, 14237 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:36,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4241 Valid, 14237 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 12:06:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84599 states. [2022-01-10 12:06:38,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84599 to 73408. [2022-01-10 12:06:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73408 states, 73403 states have (on average 1.8233723417299021) internal successors, (133841), 73407 states have internal predecessors, (133841), 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 12:06:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73408 states to 73408 states and 133841 transitions. [2022-01-10 12:06:39,032 INFO L78 Accepts]: Start accepts. Automaton has 73408 states and 133841 transitions. Word has length 117 [2022-01-10 12:06:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:39,032 INFO L470 AbstractCegarLoop]: Abstraction has 73408 states and 133841 transitions. [2022-01-10 12:06:39,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 12:06:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 73408 states and 133841 transitions. [2022-01-10 12:06:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:06:39,055 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:39,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:39,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:06:39,055 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:39,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash -895181700, now seen corresponding path program 1 times [2022-01-10 12:06:39,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:39,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862374354] [2022-01-10 12:06:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:39,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:39,140 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 12:06:39,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:39,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862374354] [2022-01-10 12:06:39,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862374354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:39,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:39,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:39,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838384112] [2022-01-10 12:06:39,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:39,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:39,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:39,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:39,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:39,142 INFO L87 Difference]: Start difference. First operand 73408 states and 133841 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:42,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:42,503 INFO L93 Difference]: Finished difference Result 194442 states and 356574 transitions. [2022-01-10 12:06:42,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:42,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-01-10 12:06:42,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:42,861 INFO L225 Difference]: With dead ends: 194442 [2022-01-10 12:06:42,862 INFO L226 Difference]: Without dead ends: 129416 [2022-01-10 12:06:42,933 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 12:06:42,934 INFO L933 BasicCegarLoop]: 10161 mSDtfsCounter, 3976 mSDsluCounter, 5700 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 15861 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:42,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3976 Valid, 15861 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:06:43,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129416 states. [2022-01-10 12:06:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129416 to 73093. [2022-01-10 12:06:45,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73093 states, 73088 states have (on average 1.8139913528896672) internal successors, (132581), 73092 states have internal predecessors, (132581), 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 12:06:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73093 states to 73093 states and 132581 transitions. [2022-01-10 12:06:45,414 INFO L78 Accepts]: Start accepts. Automaton has 73093 states and 132581 transitions. Word has length 120 [2022-01-10 12:06:45,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:45,414 INFO L470 AbstractCegarLoop]: Abstraction has 73093 states and 132581 transitions. [2022-01-10 12:06:45,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:06:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 73093 states and 132581 transitions. [2022-01-10 12:06:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 12:06:45,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:45,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:45,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:06:45,434 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 12:06:45,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:45,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1072536930, now seen corresponding path program 1 times [2022-01-10 12:06:45,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:45,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158987286] [2022-01-10 12:06:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:45,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:45,512 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 12:06:45,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:45,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158987286] [2022-01-10 12:06:45,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158987286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:45,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:45,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:06:45,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68720905] [2022-01-10 12:06:45,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:45,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:06:45,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:45,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:06:45,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:06:45,514 INFO L87 Difference]: Start difference. First operand 73093 states and 132581 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 12:06:48,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:06:48,157 INFO L93 Difference]: Finished difference Result 150064 states and 273815 transitions. [2022-01-10 12:06:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:06:48,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2022-01-10 12:06:48,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:06:48,355 INFO L225 Difference]: With dead ends: 150064 [2022-01-10 12:06:48,355 INFO L226 Difference]: Without dead ends: 89039 [2022-01-10 12:06:48,422 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 12:06:48,423 INFO L933 BasicCegarLoop]: 9718 mSDtfsCounter, 3700 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 15311 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:06:48,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3700 Valid, 15311 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:06:48,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89039 states. [2022-01-10 12:06:50,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89039 to 73093. [2022-01-10 12:06:50,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73093 states, 73088 states have (on average 1.805234785464098) internal successors, (131941), 73092 states have internal predecessors, (131941), 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 12:06:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73093 states to 73093 states and 131941 transitions. [2022-01-10 12:06:50,604 INFO L78 Accepts]: Start accepts. Automaton has 73093 states and 131941 transitions. Word has length 121 [2022-01-10 12:06:50,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:06:50,604 INFO L470 AbstractCegarLoop]: Abstraction has 73093 states and 131941 transitions. [2022-01-10 12:06:50,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 12:06:50,604 INFO L276 IsEmpty]: Start isEmpty. Operand 73093 states and 131941 transitions. [2022-01-10 12:06:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-10 12:06:50,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:06:50,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:06:50,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:06:50,626 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:06:50,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:06:50,626 INFO L85 PathProgramCache]: Analyzing trace with hash 647847592, now seen corresponding path program 1 times [2022-01-10 12:06:50,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:06:50,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60663910] [2022-01-10 12:06:50,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:06:50,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:06:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:06:50,745 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 12:06:50,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:06:50,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60663910] [2022-01-10 12:06:50,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60663910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:06:50,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:06:50,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:06:50,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133791260] [2022-01-10 12:06:50,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:06:50,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:06:50,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:06:50,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:06:50,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:06:50,748 INFO L87 Difference]: Start difference. First operand 73093 states and 131941 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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)