/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/email_spec9_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:22:13,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:22:13,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:22:13,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:22:13,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:22:13,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:22:13,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:22:13,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:22:13,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:22:13,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:22:13,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:22:13,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:22:13,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:22:13,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:22:13,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:22:13,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:22:13,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:22:13,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:22:13,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:22:13,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:22:13,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:22:13,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:22:13,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:22:13,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:22:13,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:22:13,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:22:13,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:22:13,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:22:13,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:22:13,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:22:13,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:22:13,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:22:13,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:22:13,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:22:13,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:22:13,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:22:13,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:22:13,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:22:13,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:22:13,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:22:13,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:22:13,253 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 12:22:13,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:22:13,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:22:13,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:22:13,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:22:13,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:22:13,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:22:13,271 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:22:13,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:22:13,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:22:13,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:22:13,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:22:13,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:22:13,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:22:13,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:22:13,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:22:13,274 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:22:13,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:22:13,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:22:13,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:22:13,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:22:13,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:22:13,478 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:22:13,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2022-01-10 12:22:13,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2db52754/e77ebef7f9fd4adca494930a857cebec/FLAG9fda6195f [2022-01-10 12:22:13,998 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:22:13,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2022-01-10 12:22:14,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2db52754/e77ebef7f9fd4adca494930a857cebec/FLAG9fda6195f [2022-01-10 12:22:14,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2db52754/e77ebef7f9fd4adca494930a857cebec [2022-01-10 12:22:14,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:22:14,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:22:14,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:22:14,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:22:14,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:22:14,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebebdcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14, skipping insertion in model container [2022-01-10 12:22:14,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:22:14,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:22:14,463 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/email_spec9_product32.cil.c[51167,51180] [2022-01-10 12:22:14,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:22:14,551 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:22:14,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:22:14,644 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/email_spec9_product32.cil.c[51167,51180] [2022-01-10 12:22:14,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:22:14,672 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:22:14,716 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/email_spec9_product32.cil.c[51167,51180] [2022-01-10 12:22:14,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:22:14,757 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:22:14,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14 WrapperNode [2022-01-10 12:22:14,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:22:14,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:22:14,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:22:14,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:22:14,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,905 INFO L137 Inliner]: procedures = 137, calls = 242, calls flagged for inlining = 145, calls inlined = 346, statements flattened = 5275 [2022-01-10 12:22:14,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:22:14,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:22:14,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:22:14,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:22:14,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:14,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:15,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:15,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:22:15,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:22:15,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:22:15,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:22:15,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (1/1) ... [2022-01-10 12:22:15,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:22:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:22:15,061 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 12:22:15,067 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 12:22:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:22:15,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:22:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:22:15,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:22:15,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:22:15,332 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:22:15,333 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:22:17,138 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:22:17,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:22:17,151 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:22:17,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:22:17 BoogieIcfgContainer [2022-01-10 12:22:17,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:22:17,156 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:22:17,156 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:22:17,157 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:22:17,159 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:22:17" (1/1) ... [2022-01-10 12:22:17,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:22:17 BasicIcfg [2022-01-10 12:22:17,539 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:22:17,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:22:17,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:22:17,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:22:17,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:22:14" (1/4) ... [2022-01-10 12:22:17,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef929e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:22:17, skipping insertion in model container [2022-01-10 12:22:17,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:22:14" (2/4) ... [2022-01-10 12:22:17,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef929e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:22:17, skipping insertion in model container [2022-01-10 12:22:17,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:22:17" (3/4) ... [2022-01-10 12:22:17,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef929e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:22:17, skipping insertion in model container [2022-01-10 12:22:17,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:22:17" (4/4) ... [2022-01-10 12:22:17,543 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product32.cil.cTransformedIcfg [2022-01-10 12:22:17,547 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:22:17,547 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:22:17,589 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:22:17,594 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 12:22:17,594 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:22:17,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 1182 states, 1175 states have (on average 1.686808510638298) internal successors, (1982), 1181 states have internal predecessors, (1982), 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 12:22:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:22:17,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:17,627 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] [2022-01-10 12:22:17,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:17,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:17,632 INFO L85 PathProgramCache]: Analyzing trace with hash 913292926, now seen corresponding path program 1 times [2022-01-10 12:22:17,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:17,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521266175] [2022-01-10 12:22:17,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:17,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:17,945 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 12:22:17,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:17,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521266175] [2022-01-10 12:22:17,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521266175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:17,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:17,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:22:17,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852260239] [2022-01-10 12:22:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:17,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:22:17,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:22:17,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:22:17,977 INFO L87 Difference]: Start difference. First operand has 1182 states, 1175 states have (on average 1.686808510638298) internal successors, (1982), 1181 states have internal predecessors, (1982), 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 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 12:22:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:18,040 INFO L93 Difference]: Finished difference Result 2055 states and 3417 transitions. [2022-01-10 12:22:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:22:18,042 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2022-01-10 12:22:18,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:18,056 INFO L225 Difference]: With dead ends: 2055 [2022-01-10 12:22:18,056 INFO L226 Difference]: Without dead ends: 990 [2022-01-10 12:22:18,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:22:18,063 INFO L933 BasicCegarLoop]: 1968 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:18,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:22:18,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-01-10 12:22:18,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2022-01-10 12:22:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 984 states have (on average 1.6961382113821137) internal successors, (1669), 989 states have internal predecessors, (1669), 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 12:22:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1669 transitions. [2022-01-10 12:22:18,136 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1669 transitions. Word has length 55 [2022-01-10 12:22:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:18,136 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1669 transitions. [2022-01-10 12:22:18,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 12:22:18,137 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1669 transitions. [2022-01-10 12:22:18,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 12:22:18,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:18,144 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] [2022-01-10 12:22:18,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:22:18,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:18,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:18,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2005374084, now seen corresponding path program 1 times [2022-01-10 12:22:18,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:18,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918594113] [2022-01-10 12:22:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:18,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:22:18,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:18,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918594113] [2022-01-10 12:22:18,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918594113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:18,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:18,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:22:18,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208161429] [2022-01-10 12:22:18,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:18,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:22:18,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:18,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:22:18,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:22:18,304 INFO L87 Difference]: Start difference. First operand 990 states and 1669 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 12:22:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:18,359 INFO L93 Difference]: Finished difference Result 1576 states and 2627 transitions. [2022-01-10 12:22:18,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:22:18,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2022-01-10 12:22:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:18,372 INFO L225 Difference]: With dead ends: 1576 [2022-01-10 12:22:18,372 INFO L226 Difference]: Without dead ends: 992 [2022-01-10 12:22:18,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:22:18,374 INFO L933 BasicCegarLoop]: 1649 mSDtfsCounter, 704 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:18,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 2555 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:22:18,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-01-10 12:22:18,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 978. [2022-01-10 12:22:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6950718685831623) internal successors, (1651), 977 states have internal predecessors, (1651), 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 12:22:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1651 transitions. [2022-01-10 12:22:18,394 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1651 transitions. Word has length 56 [2022-01-10 12:22:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:18,395 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1651 transitions. [2022-01-10 12:22:18,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 12:22:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1651 transitions. [2022-01-10 12:22:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 12:22:18,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:18,397 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 12:22:18,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:22:18,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:18,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:18,398 INFO L85 PathProgramCache]: Analyzing trace with hash 68136773, now seen corresponding path program 1 times [2022-01-10 12:22:18,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:18,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887882960] [2022-01-10 12:22:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:18,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:18,562 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 12:22:18,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:18,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887882960] [2022-01-10 12:22:18,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887882960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:18,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:18,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:22:18,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478156032] [2022-01-10 12:22:18,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:18,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:22:18,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:22:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:22:18,564 INFO L87 Difference]: Start difference. First operand 978 states and 1651 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 12:22:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:18,661 INFO L93 Difference]: Finished difference Result 1724 states and 2870 transitions. [2022-01-10 12:22:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:22:18,662 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 12:22:18,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:18,666 INFO L225 Difference]: With dead ends: 1724 [2022-01-10 12:22:18,666 INFO L226 Difference]: Without dead ends: 1208 [2022-01-10 12:22:18,668 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 12:22:18,668 INFO L933 BasicCegarLoop]: 1961 mSDtfsCounter, 839 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:18,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [839 Valid, 3119 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:22:18,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-01-10 12:22:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 978. [2022-01-10 12:22:18,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.688911704312115) internal successors, (1645), 977 states have internal predecessors, (1645), 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 12:22:18,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1645 transitions. [2022-01-10 12:22:18,688 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1645 transitions. Word has length 108 [2022-01-10 12:22:18,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:18,689 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1645 transitions. [2022-01-10 12:22:18,689 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 12:22:18,689 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1645 transitions. [2022-01-10 12:22:18,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 12:22:18,691 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:18,691 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] [2022-01-10 12:22:18,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:22:18,692 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:18,692 INFO L85 PathProgramCache]: Analyzing trace with hash 783553461, now seen corresponding path program 1 times [2022-01-10 12:22:18,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:18,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213275183] [2022-01-10 12:22:18,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:18,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:18,846 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 12:22:18,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:18,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213275183] [2022-01-10 12:22:18,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213275183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:18,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:18,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:22:18,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109645475] [2022-01-10 12:22:18,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:18,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:22:18,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:18,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:22:18,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:22:18,849 INFO L87 Difference]: Start difference. First operand 978 states and 1645 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 12:22:18,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:18,935 INFO L93 Difference]: Finished difference Result 1937 states and 3262 transitions. [2022-01-10 12:22:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:22:18,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 109 [2022-01-10 12:22:18,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:18,938 INFO L225 Difference]: With dead ends: 1937 [2022-01-10 12:22:18,938 INFO L226 Difference]: Without dead ends: 978 [2022-01-10 12:22:18,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:22:18,940 INFO L933 BasicCegarLoop]: 1624 mSDtfsCounter, 1620 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:18,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 1637 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:22:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-01-10 12:22:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2022-01-10 12:22:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6868583162217659) internal successors, (1643), 977 states have internal predecessors, (1643), 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 12:22:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1643 transitions. [2022-01-10 12:22:18,963 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1643 transitions. Word has length 109 [2022-01-10 12:22:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:18,963 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1643 transitions. [2022-01-10 12:22:18,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 12:22:18,964 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1643 transitions. [2022-01-10 12:22:18,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 12:22:18,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:18,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:22:18,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:22:18,965 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:18,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:18,966 INFO L85 PathProgramCache]: Analyzing trace with hash -512960075, now seen corresponding path program 1 times [2022-01-10 12:22:18,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:18,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99330922] [2022-01-10 12:22:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:18,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:19,062 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 12:22:19,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:19,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99330922] [2022-01-10 12:22:19,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99330922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:19,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:19,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:22:19,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987416835] [2022-01-10 12:22:19,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:19,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:19,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:19,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:19,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:19,064 INFO L87 Difference]: Start difference. First operand 978 states and 1643 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:22:19,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:19,293 INFO L93 Difference]: Finished difference Result 4758 states and 8011 transitions. [2022-01-10 12:22:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:22:19,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-10 12:22:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:19,306 INFO L225 Difference]: With dead ends: 4758 [2022-01-10 12:22:19,306 INFO L226 Difference]: Without dead ends: 3804 [2022-01-10 12:22:19,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:22:19,309 INFO L933 BasicCegarLoop]: 3209 mSDtfsCounter, 7998 mSDsluCounter, 4801 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7998 SdHoareTripleChecker+Valid, 8010 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:19,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7998 Valid, 8010 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:22:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2022-01-10 12:22:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 978. [2022-01-10 12:22:19,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6858316221765914) internal successors, (1642), 977 states have internal predecessors, (1642), 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 12:22:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1642 transitions. [2022-01-10 12:22:19,377 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1642 transitions. Word has length 111 [2022-01-10 12:22:19,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:19,377 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1642 transitions. [2022-01-10 12:22:19,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:22:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1642 transitions. [2022-01-10 12:22:19,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 12:22:19,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:19,378 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] [2022-01-10 12:22:19,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:22:19,379 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:19,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1795530337, now seen corresponding path program 1 times [2022-01-10 12:22:19,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:19,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118059716] [2022-01-10 12:22:19,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:19,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:19,462 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 12:22:19,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:19,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118059716] [2022-01-10 12:22:19,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118059716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:19,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:19,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:22:19,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547883815] [2022-01-10 12:22:19,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:19,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:22:19,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:19,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:22:19,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:22:19,464 INFO L87 Difference]: Start difference. First operand 978 states and 1642 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 12:22:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:19,518 INFO L93 Difference]: Finished difference Result 1941 states and 3262 transitions. [2022-01-10 12:22:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:22:19,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2022-01-10 12:22:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:19,521 INFO L225 Difference]: With dead ends: 1941 [2022-01-10 12:22:19,521 INFO L226 Difference]: Without dead ends: 992 [2022-01-10 12:22:19,522 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 12:22:19,523 INFO L933 BasicCegarLoop]: 1656 mSDtfsCounter, 1621 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:19,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1621 Valid, 1678 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:22:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-01-10 12:22:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 978. [2022-01-10 12:22:19,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6848049281314168) internal successors, (1641), 977 states have internal predecessors, (1641), 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 12:22:19,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1641 transitions. [2022-01-10 12:22:19,557 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1641 transitions. Word has length 112 [2022-01-10 12:22:19,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:19,557 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1641 transitions. [2022-01-10 12:22:19,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 12:22:19,558 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1641 transitions. [2022-01-10 12:22:19,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 12:22:19,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:19,559 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 12:22:19,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:22:19,559 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:19,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:19,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1637792854, now seen corresponding path program 1 times [2022-01-10 12:22:19,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:19,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856539802] [2022-01-10 12:22:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:19,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:19,656 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 12:22:19,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:19,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856539802] [2022-01-10 12:22:19,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856539802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:19,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:19,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:22:19,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469027985] [2022-01-10 12:22:19,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:19,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:19,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:19,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:19,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:19,658 INFO L87 Difference]: Start difference. First operand 978 states and 1641 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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 12:22:19,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:19,840 INFO L93 Difference]: Finished difference Result 2868 states and 4823 transitions. [2022-01-10 12:22:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:22:19,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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 12:22:19,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:19,847 INFO L225 Difference]: With dead ends: 2868 [2022-01-10 12:22:19,847 INFO L226 Difference]: Without dead ends: 1924 [2022-01-10 12:22:19,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:22:19,850 INFO L933 BasicCegarLoop]: 1650 mSDtfsCounter, 7921 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7921 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:19,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7921 Valid, 3314 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:22:19,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2022-01-10 12:22:19,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 978. [2022-01-10 12:22:19,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6827515400410678) internal successors, (1639), 977 states have internal predecessors, (1639), 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 12:22:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1639 transitions. [2022-01-10 12:22:19,904 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1639 transitions. Word has length 113 [2022-01-10 12:22:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:19,904 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1639 transitions. [2022-01-10 12:22:19,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 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 12:22:19,904 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1639 transitions. [2022-01-10 12:22:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:22:19,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:19,905 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] [2022-01-10 12:22:19,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:22:19,906 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:19,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:19,906 INFO L85 PathProgramCache]: Analyzing trace with hash -2142565965, now seen corresponding path program 1 times [2022-01-10 12:22:19,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:19,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143977103] [2022-01-10 12:22:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:19,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:20,042 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 12:22:20,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:20,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143977103] [2022-01-10 12:22:20,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143977103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:20,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:20,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:22:20,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694771862] [2022-01-10 12:22:20,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:20,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:22:20,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:20,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:22:20,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:22:20,044 INFO L87 Difference]: Start difference. First operand 978 states and 1639 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 12:22:20,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:20,721 INFO L93 Difference]: Finished difference Result 7484 states and 12408 transitions. [2022-01-10 12:22:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:22:20,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 115 [2022-01-10 12:22:20,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:20,744 INFO L225 Difference]: With dead ends: 7484 [2022-01-10 12:22:20,745 INFO L226 Difference]: Without dead ends: 6828 [2022-01-10 12:22:20,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:22:20,750 INFO L933 BasicCegarLoop]: 3052 mSDtfsCounter, 13067 mSDsluCounter, 10964 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13067 SdHoareTripleChecker+Valid, 14016 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:20,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13067 Valid, 14016 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:22:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6828 states. [2022-01-10 12:22:20,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6828 to 1698. [2022-01-10 12:22:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1694 states have (on average 1.6853600944510034) internal successors, (2855), 1697 states have internal predecessors, (2855), 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 12:22:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2855 transitions. [2022-01-10 12:22:20,896 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2855 transitions. Word has length 115 [2022-01-10 12:22:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:20,897 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2855 transitions. [2022-01-10 12:22:20,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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 12:22:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2855 transitions. [2022-01-10 12:22:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:22:20,901 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:20,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:22:20,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:22:20,902 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:20,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1951436272, now seen corresponding path program 1 times [2022-01-10 12:22:20,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:20,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713913438] [2022-01-10 12:22:20,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:20,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:21,024 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 12:22:21,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:21,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713913438] [2022-01-10 12:22:21,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713913438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:21,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:21,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:22:21,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444714207] [2022-01-10 12:22:21,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:21,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:21,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:21,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:21,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:21,027 INFO L87 Difference]: Start difference. First operand 1698 states and 2855 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:22:21,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:21,281 INFO L93 Difference]: Finished difference Result 3619 states and 5989 transitions. [2022-01-10 12:22:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:22:21,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 12:22:21,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:21,289 INFO L225 Difference]: With dead ends: 3619 [2022-01-10 12:22:21,289 INFO L226 Difference]: Without dead ends: 2537 [2022-01-10 12:22:21,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:22:21,292 INFO L933 BasicCegarLoop]: 1621 mSDtfsCounter, 5523 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5523 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:21,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5523 Valid, 3551 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:22:21,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2022-01-10 12:22:21,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 1698. [2022-01-10 12:22:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1694 states have (on average 1.6829988193624557) internal successors, (2851), 1697 states have internal predecessors, (2851), 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 12:22:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2851 transitions. [2022-01-10 12:22:21,404 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2851 transitions. Word has length 116 [2022-01-10 12:22:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:21,404 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2851 transitions. [2022-01-10 12:22:21,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:22:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2851 transitions. [2022-01-10 12:22:21,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:22:21,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:21,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:22:21,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:22:21,407 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:21,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:21,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1187654299, now seen corresponding path program 1 times [2022-01-10 12:22:21,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:21,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387260871] [2022-01-10 12:22:21,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:21,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:21,491 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 12:22:21,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:21,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387260871] [2022-01-10 12:22:21,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387260871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:21,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:21,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:22:21,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233297094] [2022-01-10 12:22:21,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:21,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:21,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:21,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:21,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:21,493 INFO L87 Difference]: Start difference. First operand 1698 states and 2851 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:22:21,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:21,749 INFO L93 Difference]: Finished difference Result 4971 states and 8382 transitions. [2022-01-10 12:22:21,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:22:21,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 12:22:21,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:21,781 INFO L225 Difference]: With dead ends: 4971 [2022-01-10 12:22:21,781 INFO L226 Difference]: Without dead ends: 3310 [2022-01-10 12:22:21,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:22:21,786 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 4848 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:21,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4848 Valid, 4767 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:22:21,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2022-01-10 12:22:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 1698. [2022-01-10 12:22:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1694 states have (on average 1.6818181818181819) internal successors, (2849), 1697 states have internal predecessors, (2849), 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 12:22:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2849 transitions. [2022-01-10 12:22:21,961 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2849 transitions. Word has length 116 [2022-01-10 12:22:21,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:21,961 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2849 transitions. [2022-01-10 12:22:21,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:22:21,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2849 transitions. [2022-01-10 12:22:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:22:21,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:21,963 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 12:22:21,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:22:21,964 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash 380084415, now seen corresponding path program 1 times [2022-01-10 12:22:21,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:21,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314491671] [2022-01-10 12:22:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:21,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:22,076 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 12:22:22,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:22,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314491671] [2022-01-10 12:22:22,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314491671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:22,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:22,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:22:22,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316239401] [2022-01-10 12:22:22,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:22,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:22,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:22,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:22,078 INFO L87 Difference]: Start difference. First operand 1698 states and 2849 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 12:22:22,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:22,410 INFO L93 Difference]: Finished difference Result 4824 states and 8019 transitions. [2022-01-10 12:22:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:22:22,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 12:22:22,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:22,419 INFO L225 Difference]: With dead ends: 4824 [2022-01-10 12:22:22,420 INFO L226 Difference]: Without dead ends: 4006 [2022-01-10 12:22:22,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:22:22,423 INFO L933 BasicCegarLoop]: 1706 mSDtfsCounter, 3287 mSDsluCounter, 5014 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3287 SdHoareTripleChecker+Valid, 6720 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:22,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3287 Valid, 6720 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:22:22,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4006 states. [2022-01-10 12:22:22,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4006 to 3110. [2022-01-10 12:22:22,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3106 states have (on average 1.6886670959433354) internal successors, (5245), 3109 states have internal predecessors, (5245), 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 12:22:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 5245 transitions. [2022-01-10 12:22:22,642 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 5245 transitions. Word has length 117 [2022-01-10 12:22:22,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:22,643 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 5245 transitions. [2022-01-10 12:22:22,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 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 12:22:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 5245 transitions. [2022-01-10 12:22:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:22:22,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:22,648 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 12:22:22,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:22:22,649 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:22,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:22,649 INFO L85 PathProgramCache]: Analyzing trace with hash 2034972743, now seen corresponding path program 1 times [2022-01-10 12:22:22,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:22,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033593852] [2022-01-10 12:22:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:22,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:22,813 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 12:22:22,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:22,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033593852] [2022-01-10 12:22:22,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033593852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:22,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:22,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:22:22,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537108590] [2022-01-10 12:22:22,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:22,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:22:22,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:22,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:22:22,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:22:22,815 INFO L87 Difference]: Start difference. First operand 3110 states and 5245 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 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 12:22:24,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:24,747 INFO L93 Difference]: Finished difference Result 15174 states and 24545 transitions. [2022-01-10 12:22:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:22:24,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 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 12:22:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:24,778 INFO L225 Difference]: With dead ends: 15174 [2022-01-10 12:22:24,778 INFO L226 Difference]: Without dead ends: 13476 [2022-01-10 12:22:24,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:22:24,816 INFO L933 BasicCegarLoop]: 2421 mSDtfsCounter, 12431 mSDsluCounter, 14135 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12431 SdHoareTripleChecker+Valid, 16556 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:24,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12431 Valid, 16556 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 12:22:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13476 states. [2022-01-10 12:22:25,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13476 to 6129. [2022-01-10 12:22:25,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6125 states have (on average 1.6904489795918367) internal successors, (10354), 6128 states have internal predecessors, (10354), 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 12:22:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 10354 transitions. [2022-01-10 12:22:25,294 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 10354 transitions. Word has length 117 [2022-01-10 12:22:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:25,294 INFO L470 AbstractCegarLoop]: Abstraction has 6129 states and 10354 transitions. [2022-01-10 12:22:25,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 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 12:22:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 10354 transitions. [2022-01-10 12:22:25,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:22:25,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:25,302 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] [2022-01-10 12:22:25,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:22:25,302 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:25,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:25,303 INFO L85 PathProgramCache]: Analyzing trace with hash -619457668, now seen corresponding path program 1 times [2022-01-10 12:22:25,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:25,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152264793] [2022-01-10 12:22:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:25,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:25,402 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 12:22:25,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:25,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152264793] [2022-01-10 12:22:25,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152264793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:25,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:25,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:22:25,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541895868] [2022-01-10 12:22:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:25,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:25,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:25,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:25,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:25,404 INFO L87 Difference]: Start difference. First operand 6129 states and 10354 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 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 12:22:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:26,595 INFO L93 Difference]: Finished difference Result 17461 states and 29066 transitions. [2022-01-10 12:22:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:22:26,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 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 118 [2022-01-10 12:22:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:26,621 INFO L225 Difference]: With dead ends: 17461 [2022-01-10 12:22:26,622 INFO L226 Difference]: Without dead ends: 14696 [2022-01-10 12:22:26,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:22:26,630 INFO L933 BasicCegarLoop]: 1910 mSDtfsCounter, 2727 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 6770 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:26,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2727 Valid, 6770 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:22:26,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14696 states. [2022-01-10 12:22:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14696 to 11787. [2022-01-10 12:22:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11787 states, 11783 states have (on average 1.6937961469914282) internal successors, (19958), 11786 states have internal predecessors, (19958), 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 12:22:27,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11787 states to 11787 states and 19958 transitions. [2022-01-10 12:22:27,379 INFO L78 Accepts]: Start accepts. Automaton has 11787 states and 19958 transitions. Word has length 118 [2022-01-10 12:22:27,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:27,379 INFO L470 AbstractCegarLoop]: Abstraction has 11787 states and 19958 transitions. [2022-01-10 12:22:27,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 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 12:22:27,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11787 states and 19958 transitions. [2022-01-10 12:22:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:22:27,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:27,393 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] [2022-01-10 12:22:27,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:22:27,394 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:27,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:27,394 INFO L85 PathProgramCache]: Analyzing trace with hash 102879546, now seen corresponding path program 1 times [2022-01-10 12:22:27,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:27,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148284027] [2022-01-10 12:22:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:27,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:22:27,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:27,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148284027] [2022-01-10 12:22:27,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148284027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:27,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:27,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:22:27,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592430880] [2022-01-10 12:22:27,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:27,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:22:27,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:27,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:22:27,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:22:27,509 INFO L87 Difference]: Start difference. First operand 11787 states and 19958 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 12:22:28,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:28,631 INFO L93 Difference]: Finished difference Result 18103 states and 30133 transitions. [2022-01-10 12:22:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:22:28,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 118 [2022-01-10 12:22:28,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:28,658 INFO L225 Difference]: With dead ends: 18103 [2022-01-10 12:22:28,658 INFO L226 Difference]: Without dead ends: 14416 [2022-01-10 12:22:28,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:28,668 INFO L933 BasicCegarLoop]: 1629 mSDtfsCounter, 2985 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:28,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2985 Valid, 3514 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:22:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14416 states. [2022-01-10 12:22:29,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14416 to 11787. [2022-01-10 12:22:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11787 states, 11783 states have (on average 1.693117202749724) internal successors, (19950), 11786 states have internal predecessors, (19950), 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 12:22:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11787 states to 11787 states and 19950 transitions. [2022-01-10 12:22:29,470 INFO L78 Accepts]: Start accepts. Automaton has 11787 states and 19950 transitions. Word has length 118 [2022-01-10 12:22:29,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:29,470 INFO L470 AbstractCegarLoop]: Abstraction has 11787 states and 19950 transitions. [2022-01-10 12:22:29,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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 12:22:29,470 INFO L276 IsEmpty]: Start isEmpty. Operand 11787 states and 19950 transitions. [2022-01-10 12:22:29,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:22:29,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:29,487 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] [2022-01-10 12:22:29,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:22:29,487 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:29,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash 222999419, now seen corresponding path program 1 times [2022-01-10 12:22:29,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:29,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979652193] [2022-01-10 12:22:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:29,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:29,606 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 12:22:29,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:29,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979652193] [2022-01-10 12:22:29,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979652193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:29,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:29,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:22:29,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382307559] [2022-01-10 12:22:29,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:29,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:29,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:29,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:29,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:29,608 INFO L87 Difference]: Start difference. First operand 11787 states and 19950 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 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 12:22:33,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:33,827 INFO L93 Difference]: Finished difference Result 50539 states and 82310 transitions. [2022-01-10 12:22:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:22:33,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 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 118 [2022-01-10 12:22:33,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:33,902 INFO L225 Difference]: With dead ends: 50539 [2022-01-10 12:22:33,902 INFO L226 Difference]: Without dead ends: 47364 [2022-01-10 12:22:33,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:22:33,922 INFO L933 BasicCegarLoop]: 1628 mSDtfsCounter, 9733 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9733 SdHoareTripleChecker+Valid, 7198 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:33,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9733 Valid, 7198 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:22:33,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47364 states. [2022-01-10 12:22:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47364 to 27714. [2022-01-10 12:22:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27714 states, 27710 states have (on average 1.647708408516781) internal successors, (45658), 27713 states have internal predecessors, (45658), 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 12:22:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27714 states to 27714 states and 45658 transitions. [2022-01-10 12:22:36,616 INFO L78 Accepts]: Start accepts. Automaton has 27714 states and 45658 transitions. Word has length 118 [2022-01-10 12:22:36,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:36,617 INFO L470 AbstractCegarLoop]: Abstraction has 27714 states and 45658 transitions. [2022-01-10 12:22:36,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 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 12:22:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 27714 states and 45658 transitions. [2022-01-10 12:22:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:22:36,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:36,644 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] [2022-01-10 12:22:36,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:22:36,644 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1495641626, now seen corresponding path program 1 times [2022-01-10 12:22:36,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488279868] [2022-01-10 12:22:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:36,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:36,753 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 12:22:36,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:36,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488279868] [2022-01-10 12:22:36,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488279868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:36,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:36,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:22:36,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706203338] [2022-01-10 12:22:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:36,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:22:36,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:22:36,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:22:36,757 INFO L87 Difference]: Start difference. First operand 27714 states and 45658 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 12:22:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:44,410 INFO L93 Difference]: Finished difference Result 92050 states and 148796 transitions. [2022-01-10 12:22:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 12:22:44,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 119 [2022-01-10 12:22:44,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:44,539 INFO L225 Difference]: With dead ends: 92050 [2022-01-10 12:22:44,539 INFO L226 Difference]: Without dead ends: 77860 [2022-01-10 12:22:44,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-01-10 12:22:44,577 INFO L933 BasicCegarLoop]: 1839 mSDtfsCounter, 7756 mSDsluCounter, 5693 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7756 SdHoareTripleChecker+Valid, 7532 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:44,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7756 Valid, 7532 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:22:44,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77860 states. [2022-01-10 12:22:47,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77860 to 28706. [2022-01-10 12:22:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28706 states, 28702 states have (on average 1.6402341300257821) internal successors, (47078), 28705 states have internal predecessors, (47078), 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 12:22:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28706 states to 28706 states and 47078 transitions. [2022-01-10 12:22:47,995 INFO L78 Accepts]: Start accepts. Automaton has 28706 states and 47078 transitions. Word has length 119 [2022-01-10 12:22:47,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:47,995 INFO L470 AbstractCegarLoop]: Abstraction has 28706 states and 47078 transitions. [2022-01-10 12:22:47,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 12:22:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand 28706 states and 47078 transitions. [2022-01-10 12:22:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:22:48,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:48,027 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 12:22:48,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:22:48,028 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:48,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:48,028 INFO L85 PathProgramCache]: Analyzing trace with hash -832710012, now seen corresponding path program 1 times [2022-01-10 12:22:48,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:48,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102971446] [2022-01-10 12:22:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:48,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:48,126 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 12:22:48,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:48,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102971446] [2022-01-10 12:22:48,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102971446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:48,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:48,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:22:48,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137016446] [2022-01-10 12:22:48,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:48,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:22:48,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:48,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:22:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:22:48,128 INFO L87 Difference]: Start difference. First operand 28706 states and 47078 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 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 12:22:55,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:22:55,660 INFO L93 Difference]: Finished difference Result 95766 states and 155697 transitions. [2022-01-10 12:22:55,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:22:55,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 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 12:22:55,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:22:55,771 INFO L225 Difference]: With dead ends: 95766 [2022-01-10 12:22:55,771 INFO L226 Difference]: Without dead ends: 71424 [2022-01-10 12:22:55,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:22:55,805 INFO L933 BasicCegarLoop]: 1558 mSDtfsCounter, 5772 mSDsluCounter, 6248 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5772 SdHoareTripleChecker+Valid, 7806 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:22:55,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5772 Valid, 7806 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:22:55,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71424 states. [2022-01-10 12:22:59,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71424 to 31456. [2022-01-10 12:22:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31456 states, 31452 states have (on average 1.6451100089024546) internal successors, (51742), 31455 states have internal predecessors, (51742), 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 12:22:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31456 states to 31456 states and 51742 transitions. [2022-01-10 12:22:59,417 INFO L78 Accepts]: Start accepts. Automaton has 31456 states and 51742 transitions. Word has length 120 [2022-01-10 12:22:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:22:59,417 INFO L470 AbstractCegarLoop]: Abstraction has 31456 states and 51742 transitions. [2022-01-10 12:22:59,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 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 12:22:59,418 INFO L276 IsEmpty]: Start isEmpty. Operand 31456 states and 51742 transitions. [2022-01-10 12:22:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:22:59,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:22:59,436 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 12:22:59,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:22:59,437 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:22:59,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:22:59,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1999406331, now seen corresponding path program 1 times [2022-01-10 12:22:59,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:22:59,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224556171] [2022-01-10 12:22:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:22:59,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:22:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:22:59,548 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 12:22:59,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:22:59,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224556171] [2022-01-10 12:22:59,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224556171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:22:59,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:22:59,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:22:59,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969867014] [2022-01-10 12:22:59,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:22:59,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:22:59,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:22:59,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:22:59,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:22:59,549 INFO L87 Difference]: Start difference. First operand 31456 states and 51742 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 12:23:09,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:23:09,002 INFO L93 Difference]: Finished difference Result 104384 states and 169582 transitions. [2022-01-10 12:23:09,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:23:09,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 12:23:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:23:09,146 INFO L225 Difference]: With dead ends: 104384 [2022-01-10 12:23:09,146 INFO L226 Difference]: Without dead ends: 88812 [2022-01-10 12:23:09,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:23:09,178 INFO L933 BasicCegarLoop]: 1868 mSDtfsCounter, 6122 mSDsluCounter, 4409 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6122 SdHoareTripleChecker+Valid, 6277 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:23:09,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6122 Valid, 6277 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:23:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88812 states. [2022-01-10 12:23:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88812 to 31456. [2022-01-10 12:23:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31456 states, 31452 states have (on average 1.6450464199414983) internal successors, (51740), 31455 states have internal predecessors, (51740), 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 12:23:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31456 states to 31456 states and 51740 transitions. [2022-01-10 12:23:12,934 INFO L78 Accepts]: Start accepts. Automaton has 31456 states and 51740 transitions. Word has length 120 [2022-01-10 12:23:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:23:12,934 INFO L470 AbstractCegarLoop]: Abstraction has 31456 states and 51740 transitions. [2022-01-10 12:23:12,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 12:23:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 31456 states and 51740 transitions. [2022-01-10 12:23:12,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 12:23:12,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:23:12,956 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 12:23:12,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:23:12,957 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:23:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:23:12,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2146068754, now seen corresponding path program 1 times [2022-01-10 12:23:12,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:23:12,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700687521] [2022-01-10 12:23:12,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:23:12,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:23:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:23:13,058 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 12:23:13,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:23:13,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700687521] [2022-01-10 12:23:13,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700687521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:23:13,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:23:13,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:23:13,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473979724] [2022-01-10 12:23:13,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:23:13,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:23:13,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:23:13,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:23:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:23:13,061 INFO L87 Difference]: Start difference. First operand 31456 states and 51740 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 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)