/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_SUM.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:01:58,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:01:58,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:01:58,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:01:58,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:01:58,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:01:58,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:01:58,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:01:58,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:01:58,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:01:58,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:01:58,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:01:58,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:01:58,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:01:58,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:01:58,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:01:58,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:01:58,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:01:58,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:01:58,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:01:58,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:01:58,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:01:58,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:01:58,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:01:58,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 02:01:58,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 02:01:58,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 02:01:58,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 02:01:58,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 02:01:58,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-11 02:01:58,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:01:58,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:01:58,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:01:58,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:01:58,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:01:58,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:01:58,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:01:58,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:01:58,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:01:58,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:01:58,394 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:01:58,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:01:58,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:01:58,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:01:58,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:01:58,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:01:58,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:01:58,395 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:01:58,395 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:01:58,396 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:01:58,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:01:58,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:01:58,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:01:58,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:01:58,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:01:58,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:01:58,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:01:58,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:01:58,398 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:01:58,398 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:01:58,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:01:58,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:01:58,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:01:58,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:01:58,670 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:01:58,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-01-11 02:01:58,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79df142b/3a1f9f61a84f4d988962defe5f590408/FLAGbe21fd8a8 [2022-01-11 02:01:59,117 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:01:59,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2022-01-11 02:01:59,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79df142b/3a1f9f61a84f4d988962defe5f590408/FLAGbe21fd8a8 [2022-01-11 02:01:59,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79df142b/3a1f9f61a84f4d988962defe5f590408 [2022-01-11 02:01:59,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:01:59,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:01:59,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:01:59,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:01:59,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:01:59,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9a0b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59, skipping insertion in model container [2022-01-11 02:01:59,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:01:59,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:01:59,357 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-01-11 02:01:59,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-01-11 02:01:59,365 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-01-11 02:01:59,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-01-11 02:01:59,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-01-11 02:01:59,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-01-11 02:01:59,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-01-11 02:01:59,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-01-11 02:01:59,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-01-11 02:01:59,391 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-01-11 02:01:59,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-01-11 02:01:59,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-01-11 02:01:59,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-01-11 02:01:59,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-01-11 02:01:59,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-01-11 02:01:59,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-01-11 02:01:59,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-01-11 02:01:59,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-01-11 02:01:59,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:01:59,442 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:01:59,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1551,1564] [2022-01-11 02:01:59,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[1758,1771] [2022-01-11 02:01:59,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2095,2108] [2022-01-11 02:01:59,461 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2296,2309] [2022-01-11 02:01:59,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2701,2714] [2022-01-11 02:01:59,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[2902,2915] [2022-01-11 02:01:59,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3228,3241] [2022-01-11 02:01:59,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3435,3448] [2022-01-11 02:01:59,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[3914,3927] [2022-01-11 02:01:59,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4118,4131] [2022-01-11 02:01:59,474 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4426,4439] [2022-01-11 02:01:59,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4630,4643] [2022-01-11 02:01:59,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[4995,5008] [2022-01-11 02:01:59,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5198,5211] [2022-01-11 02:01:59,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5412,5425] [2022-01-11 02:01:59,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[5616,5629] [2022-01-11 02:01:59,491 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6138,6151] [2022-01-11 02:01:59,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c[6342,6355] [2022-01-11 02:01:59,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:01:59,507 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:01:59,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59 WrapperNode [2022-01-11 02:01:59,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:01:59,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:01:59,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:01:59,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:01:59,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,542 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 247 [2022-01-11 02:01:59,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:01:59,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:01:59,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:01:59,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:01:59,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:01:59,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:01:59,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:01:59,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:01:59,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (1/1) ... [2022-01-11 02:01:59,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:01:59,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:01:59,633 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) [2022-01-11 02:01:59,635 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 [2022-01-11 02:01:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:01:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:01:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:01:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:01:59,780 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:01:59,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:02:00,084 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:02:00,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:02:00,091 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 02:02:00,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:02:00 BoogieIcfgContainer [2022-01-11 02:02:00,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:02:00,093 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:02:00,093 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:02:00,094 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:02:00,096 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:02:00" (1/1) ... [2022-01-11 02:02:00,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:02:00 BasicIcfg [2022-01-11 02:02:00,230 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:02:00,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:02:00,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:02:00,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:02:00,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:01:59" (1/4) ... [2022-01-11 02:02:00,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a479129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:02:00, skipping insertion in model container [2022-01-11 02:02:00,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:59" (2/4) ... [2022-01-11 02:02:00,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a479129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:02:00, skipping insertion in model container [2022-01-11 02:02:00,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:02:00" (3/4) ... [2022-01-11 02:02:00,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a479129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:02:00, skipping insertion in model container [2022-01-11 02:02:00,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:02:00" (4/4) ... [2022-01-11 02:02:00,239 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.cTransformedIcfg [2022-01-11 02:02:00,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:02:00,243 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-01-11 02:02:00,289 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:02:00,295 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 [2022-01-11 02:02:00,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-01-11 02:02:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 81 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) [2022-01-11 02:02:00,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-11 02:02:00,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:00,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:02:00,314 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:00,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1822758047, now seen corresponding path program 1 times [2022-01-11 02:02:00,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:00,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760651842] [2022-01-11 02:02:00,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:00,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:00,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:00,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760651842] [2022-01-11 02:02:00,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760651842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:00,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:00,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 02:02:00,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058319145] [2022-01-11 02:02:00,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:00,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 02:02:00,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:00,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 02:02:00,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-11 02:02:00,736 INFO L87 Difference]: Start difference. First operand has 82 states, 63 states have (on average 1.8888888888888888) internal successors, (119), 81 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) Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-01-11 02:02:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:00,979 INFO L93 Difference]: Finished difference Result 101 states and 132 transitions. [2022-01-11 02:02:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 02:02:00,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-01-11 02:02:00,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:00,988 INFO L225 Difference]: With dead ends: 101 [2022-01-11 02:02:00,988 INFO L226 Difference]: Without dead ends: 76 [2022-01-11 02:02:00,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-11 02:02:00,993 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 213 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:00,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 167 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:01,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-01-11 02:02:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-01-11 02:02:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 75 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:01,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-01-11 02:02:01,024 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 15 [2022-01-11 02:02:01,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:01,024 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-01-11 02:02:01,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-01-11 02:02:01,024 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-01-11 02:02:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-11 02:02:01,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:01,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:02:01,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:02:01,025 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:01,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:01,026 INFO L85 PathProgramCache]: Analyzing trace with hash 670925906, now seen corresponding path program 1 times [2022-01-11 02:02:01,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:01,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13234055] [2022-01-11 02:02:01,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:01,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:01,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:01,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:01,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13234055] [2022-01-11 02:02:01,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13234055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:01,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:01,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 02:02:01,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985428512] [2022-01-11 02:02:01,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:01,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:02:01,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:01,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:02:01,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:02:01,148 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2022-01-11 02:02:01,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:01,293 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2022-01-11 02:02:01,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 02:02:01,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 16 [2022-01-11 02:02:01,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:01,295 INFO L225 Difference]: With dead ends: 99 [2022-01-11 02:02:01,295 INFO L226 Difference]: Without dead ends: 97 [2022-01-11 02:02:01,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-11 02:02:01,297 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 234 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:01,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 184 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:01,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-01-11 02:02:01,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 74. [2022-01-11 02:02:01,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 73 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:01,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-01-11 02:02:01,306 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 16 [2022-01-11 02:02:01,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:01,306 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-01-11 02:02:01,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2022-01-11 02:02:01,307 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-01-11 02:02:01,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 02:02:01,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:01,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:02:01,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:02:01,308 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:01,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash 514741878, now seen corresponding path program 1 times [2022-01-11 02:02:01,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:01,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834315928] [2022-01-11 02:02:01,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:01,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:01,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:01,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834315928] [2022-01-11 02:02:01,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834315928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:01,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:01,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 02:02:01,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729336852] [2022-01-11 02:02:01,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:01,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 02:02:01,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:01,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 02:02:01,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-11 02:02:01,712 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2022-01-11 02:02:02,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:02,131 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2022-01-11 02:02:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 02:02:02,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 18 [2022-01-11 02:02:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:02,132 INFO L225 Difference]: With dead ends: 97 [2022-01-11 02:02:02,132 INFO L226 Difference]: Without dead ends: 95 [2022-01-11 02:02:02,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-01-11 02:02:02,134 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 343 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:02,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 206 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 02:02:02,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-01-11 02:02:02,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 72. [2022-01-11 02:02:02,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 71 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:02,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2022-01-11 02:02:02,144 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 18 [2022-01-11 02:02:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:02,144 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2022-01-11 02:02:02,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2022-01-11 02:02:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2022-01-11 02:02:02,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-11 02:02:02,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:02,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:02:02,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 02:02:02,146 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:02,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:02,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1222869658, now seen corresponding path program 1 times [2022-01-11 02:02:02,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:02,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623793962] [2022-01-11 02:02:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:02,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:02,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:02,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623793962] [2022-01-11 02:02:02,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623793962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:02,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:02,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 02:02:02,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982743043] [2022-01-11 02:02:02,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:02,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 02:02:02,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:02,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 02:02:02,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-11 02:02:02,282 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-01-11 02:02:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:02,395 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2022-01-11 02:02:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 02:02:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2022-01-11 02:02:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:02,397 INFO L225 Difference]: With dead ends: 95 [2022-01-11 02:02:02,397 INFO L226 Difference]: Without dead ends: 93 [2022-01-11 02:02:02,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-11 02:02:02,400 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 159 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:02,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 181 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-01-11 02:02:02,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 70. [2022-01-11 02:02:02,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 69 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2022-01-11 02:02:02,423 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 19 [2022-01-11 02:02:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:02,424 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2022-01-11 02:02:02,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-01-11 02:02:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2022-01-11 02:02:02,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-11 02:02:02,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:02,425 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] [2022-01-11 02:02:02,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 02:02:02,426 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:02,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash -596074847, now seen corresponding path program 1 times [2022-01-11 02:02:02,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:02,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780918889] [2022-01-11 02:02:02,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:02,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:02,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:02,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780918889] [2022-01-11 02:02:02,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780918889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:02,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:02,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 02:02:02,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732455769] [2022-01-11 02:02:02,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:02,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 02:02:02,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:02,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 02:02:02,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:02:02,499 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-01-11 02:02:02,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:02,672 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2022-01-11 02:02:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:02:02,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2022-01-11 02:02:02,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:02,673 INFO L225 Difference]: With dead ends: 93 [2022-01-11 02:02:02,673 INFO L226 Difference]: Without dead ends: 91 [2022-01-11 02:02:02,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:02:02,674 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 95 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:02,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 176 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-01-11 02:02:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 74. [2022-01-11 02:02:02,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 73 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2022-01-11 02:02:02,685 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 22 [2022-01-11 02:02:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:02,685 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2022-01-11 02:02:02,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-01-11 02:02:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2022-01-11 02:02:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-11 02:02:02,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:02,686 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] [2022-01-11 02:02:02,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 02:02:02,686 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:02,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash -596105665, now seen corresponding path program 1 times [2022-01-11 02:02:02,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:02,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115833835] [2022-01-11 02:02:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:02,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:02,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:02,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115833835] [2022-01-11 02:02:02,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115833835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:02,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:02,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 02:02:02,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072660466] [2022-01-11 02:02:02,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:02,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 02:02:02,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:02,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 02:02:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:02:02,776 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-01-11 02:02:02,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:02,963 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2022-01-11 02:02:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:02:02,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2022-01-11 02:02:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:02,964 INFO L225 Difference]: With dead ends: 120 [2022-01-11 02:02:02,964 INFO L226 Difference]: Without dead ends: 118 [2022-01-11 02:02:02,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:02:02,965 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 93 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:02,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 301 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:02,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-01-11 02:02:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 75. [2022-01-11 02:02:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 74 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2022-01-11 02:02:02,977 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 22 [2022-01-11 02:02:02,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:02,978 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2022-01-11 02:02:02,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-01-11 02:02:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2022-01-11 02:02:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 02:02:02,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:02,978 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] [2022-01-11 02:02:02,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 02:02:02,979 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:02,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:02,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1298449744, now seen corresponding path program 1 times [2022-01-11 02:02:02,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:02,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897899025] [2022-01-11 02:02:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:02,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:03,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:03,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:03,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897899025] [2022-01-11 02:02:03,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897899025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:03,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:03,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 02:02:03,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788636760] [2022-01-11 02:02:03,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:03,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 02:02:03,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:03,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 02:02:03,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:02:03,064 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-01-11 02:02:03,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:03,198 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2022-01-11 02:02:03,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:02:03,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 23 [2022-01-11 02:02:03,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:03,199 INFO L225 Difference]: With dead ends: 89 [2022-01-11 02:02:03,199 INFO L226 Difference]: Without dead ends: 87 [2022-01-11 02:02:03,199 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 [2022-01-11 02:02:03,200 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 79 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:03,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 183 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:03,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-01-11 02:02:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 76. [2022-01-11 02:02:03,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 75 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2022-01-11 02:02:03,212 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 23 [2022-01-11 02:02:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:03,214 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2022-01-11 02:02:03,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-01-11 02:02:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2022-01-11 02:02:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 02:02:03,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:03,215 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] [2022-01-11 02:02:03,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 02:02:03,215 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:03,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:03,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1299405104, now seen corresponding path program 1 times [2022-01-11 02:02:03,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:03,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822779102] [2022-01-11 02:02:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:03,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:03,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822779102] [2022-01-11 02:02:03,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822779102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:03,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:03,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 02:02:03,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404335180] [2022-01-11 02:02:03,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:03,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 02:02:03,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:03,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 02:02:03,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 02:02:03,283 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-01-11 02:02:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:03,442 INFO L93 Difference]: Finished difference Result 116 states and 122 transitions. [2022-01-11 02:02:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:02:03,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 23 [2022-01-11 02:02:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:03,443 INFO L225 Difference]: With dead ends: 116 [2022-01-11 02:02:03,443 INFO L226 Difference]: Without dead ends: 114 [2022-01-11 02:02:03,444 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 [2022-01-11 02:02:03,444 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 80 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:03,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 304 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-01-11 02:02:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 77. [2022-01-11 02:02:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 76 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2022-01-11 02:02:03,455 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 23 [2022-01-11 02:02:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:03,455 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2022-01-11 02:02:03,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-01-11 02:02:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2022-01-11 02:02:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-11 02:02:03,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:03,457 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] [2022-01-11 02:02:03,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 02:02:03,457 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:03,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:03,458 INFO L85 PathProgramCache]: Analyzing trace with hash 2025321748, now seen corresponding path program 1 times [2022-01-11 02:02:03,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:03,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166222540] [2022-01-11 02:02:03,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:03,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:03,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:03,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166222540] [2022-01-11 02:02:03,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166222540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:03,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:03,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 02:02:03,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994127743] [2022-01-11 02:02:03,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:03,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 02:02:03,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:03,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 02:02:03,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 02:02:03,503 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-01-11 02:02:03,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:03,587 INFO L93 Difference]: Finished difference Result 124 states and 130 transitions. [2022-01-11 02:02:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 02:02:03,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2022-01-11 02:02:03,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:03,588 INFO L225 Difference]: With dead ends: 124 [2022-01-11 02:02:03,588 INFO L226 Difference]: Without dead ends: 84 [2022-01-11 02:02:03,589 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 [2022-01-11 02:02:03,589 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:03,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 118 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:03,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-01-11 02:02:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2022-01-11 02:02:03,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 79 states have internal predecessors, (85), 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) [2022-01-11 02:02:03,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2022-01-11 02:02:03,598 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 25 [2022-01-11 02:02:03,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:03,599 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2022-01-11 02:02:03,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-01-11 02:02:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2022-01-11 02:02:03,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-11 02:02:03,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:03,608 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] [2022-01-11 02:02:03,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 02:02:03,608 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:03,609 INFO L85 PathProgramCache]: Analyzing trace with hash -984469882, now seen corresponding path program 1 times [2022-01-11 02:02:03,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:03,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846906074] [2022-01-11 02:02:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:03,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:03,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:03,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846906074] [2022-01-11 02:02:03,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846906074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:03,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:02:03,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 02:02:03,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530492675] [2022-01-11 02:02:03,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:03,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 02:02:03,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:03,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 02:02:03,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-11 02:02:03,881 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2022-01-11 02:02:04,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:04,198 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2022-01-11 02:02:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 02:02:04,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 26 [2022-01-11 02:02:04,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:04,199 INFO L225 Difference]: With dead ends: 85 [2022-01-11 02:02:04,199 INFO L226 Difference]: Without dead ends: 83 [2022-01-11 02:02:04,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-11 02:02:04,200 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 212 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:04,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 99 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 02:02:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-01-11 02:02:04,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2022-01-11 02:02:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 77 states have internal predecessors, (83), 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) [2022-01-11 02:02:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2022-01-11 02:02:04,210 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 26 [2022-01-11 02:02:04,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:04,210 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2022-01-11 02:02:04,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2022-01-11 02:02:04,211 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2022-01-11 02:02:04,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-11 02:02:04,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:04,211 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] [2022-01-11 02:02:04,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 02:02:04,212 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:04,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:04,212 INFO L85 PathProgramCache]: Analyzing trace with hash -36478486, now seen corresponding path program 1 times [2022-01-11 02:02:04,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:04,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913869494] [2022-01-11 02:02:04,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:04,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:04,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:04,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913869494] [2022-01-11 02:02:04,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913869494] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:02:04,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693409398] [2022-01-11 02:02:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:04,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:02:04,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:02:04,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:02:04,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:02:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:04,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-11 02:02:04,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:02:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:04,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-11 02:02:04,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693409398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:02:04,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-11 02:02:04,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-01-11 02:02:04,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778611749] [2022-01-11 02:02:04,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:02:04,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:02:04,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:02:04,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:02:04,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-11 02:02:04,712 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-01-11 02:02:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:02:04,853 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2022-01-11 02:02:04,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 02:02:04,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 26 [2022-01-11 02:02:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:02:04,854 INFO L225 Difference]: With dead ends: 82 [2022-01-11 02:02:04,854 INFO L226 Difference]: Without dead ends: 80 [2022-01-11 02:02:04,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2022-01-11 02:02:04,855 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 209 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:02:04,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 112 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:02:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-01-11 02:02:04,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2022-01-11 02:02:04,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 77 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:02:04,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2022-01-11 02:02:04,865 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 26 [2022-01-11 02:02:04,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:02:04,865 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2022-01-11 02:02:04,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-01-11 02:02:04,865 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2022-01-11 02:02:04,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-11 02:02:04,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:02:04,866 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:02:04,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 02:02:05,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-11 02:02:05,086 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2022-01-11 02:02:05,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:02:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash -36509304, now seen corresponding path program 1 times [2022-01-11 02:02:05,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:02:05,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898673537] [2022-01-11 02:02:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:05,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:02:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:05,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:02:05,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898673537] [2022-01-11 02:02:05,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898673537] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:02:05,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052697787] [2022-01-11 02:02:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:02:05,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:02:05,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:02:05,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:02:05,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:02:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:02:05,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-11 02:02:05,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:02:43,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:02:43,491 INFO L328 TraceCheckSpWp]: Computing backward predicates...