java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-data/packet_filter.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:03:06,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:03:06,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:03:06,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:03:06,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:03:06,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:03:06,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:03:06,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:03:06,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:03:06,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:03:06,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:03:06,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:03:06,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:03:06,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:03:06,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:03:06,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:03:06,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:03:06,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:03:06,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:03:06,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:03:06,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:03:06,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:03:06,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:03:06,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:03:06,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:03:06,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:03:06,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:03:06,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:03:06,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:03:06,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:03:06,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:03:06,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:03:06,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:03:06,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:03:06,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:03:06,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:03:06,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:03:06,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:03:06,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:03:06,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:03:06,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:03:06,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 13:03:06,546 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:03:06,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:03:06,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:03:06,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:03:06,548 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:03:06,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:03:06,549 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:03:06,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:03:06,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:03:06,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:03:06,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:03:06,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:03:06,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:03:06,550 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:03:06,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:03:06,550 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:03:06,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:03:06,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:03:06,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:03:06,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:03:06,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:03:06,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:03:06,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:03:06,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:03:06,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:03:06,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:03:06,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:03:06,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:03:06,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:03:06,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:03:06,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:03:06,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:03:06,603 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:03:06,603 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:03:06,604 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/packet_filter.i [2019-09-20 13:03:06,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3397b243b/86d0e50f87e243dca38891a9eaf7f1a2/FLAGfa185588b [2019-09-20 13:03:07,185 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:03:07,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/packet_filter.i [2019-09-20 13:03:07,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3397b243b/86d0e50f87e243dca38891a9eaf7f1a2/FLAGfa185588b [2019-09-20 13:03:07,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3397b243b/86d0e50f87e243dca38891a9eaf7f1a2 [2019-09-20 13:03:07,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:03:07,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:03:07,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:03:07,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:03:07,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:03:07,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:03:07" (1/1) ... [2019-09-20 13:03:07,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73961d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:07, skipping insertion in model container [2019-09-20 13:03:07,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:03:07" (1/1) ... [2019-09-20 13:03:07,524 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:03:07,579 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:03:08,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:03:08,061 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:03:08,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:03:08,200 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:03:08,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08 WrapperNode [2019-09-20 13:03:08,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:03:08,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:03:08,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:03:08,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:03:08,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... [2019-09-20 13:03:08,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... [2019-09-20 13:03:08,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... [2019-09-20 13:03:08,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... [2019-09-20 13:03:08,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... [2019-09-20 13:03:08,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... [2019-09-20 13:03:08,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... [2019-09-20 13:03:08,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:03:08,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:03:08,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:03:08,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:03:08,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:03:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:03:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:03:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:03:08,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:03:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure receive [2019-09-20 13:03:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure send [2019-09-20 13:03:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_queue [2019-09-20 13:03:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure process_prio_queue [2019-09-20 13:03:08,341 INFO L138 BoogieDeclarations]: Found implementation of procedure process_normal_queue [2019-09-20 13:03:08,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:03:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 13:03:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:03:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_charp [2019-09-20 13:03:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:03:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:03:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:03:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:03:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:03:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:03:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:03:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:03:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:03:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:03:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:03:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:03:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:03:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:03:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:03:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:03:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:03:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:03:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:03:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:03:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:03:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:03:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:03:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:03:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:03:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:03:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:03:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:03:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:03:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:03:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:03:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:03:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:03:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:03:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:03:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:03:08,348 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:03:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:03:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:03:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:03:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:03:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:03:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:03:08,349 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:03:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:03:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:03:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:03:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:03:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:03:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:03:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:03:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:03:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:03:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:03:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:03:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:03:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:03:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:03:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:03:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:03:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:03:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:03:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:03:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:03:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:03:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:03:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:03:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:03:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:03:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:03:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:03:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:03:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:03:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:03:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:03:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:03:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:03:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:03:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:03:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:03:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:03:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:03:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:03:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:03:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:03:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:03:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:03:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:03:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:03:08,356 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:03:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:03:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:03:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:03:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:03:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:03:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:03:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:03:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:03:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:03:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:03:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:03:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:03:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:03:08,358 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:03:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:03:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:03:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure receive [2019-09-20 13:03:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:03:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:03:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:03:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:03:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:03:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:03:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure send [2019-09-20 13:03:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_queue [2019-09-20 13:03:08,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:03:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure process_prio_queue [2019-09-20 13:03:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure process_normal_queue [2019-09-20 13:03:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:03:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:03:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:03:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:03:08,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:03:09,116 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:03:09,116 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-20 13:03:09,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:03:09 BoogieIcfgContainer [2019-09-20 13:03:09,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:03:09,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:03:09,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:03:09,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:03:09,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:03:07" (1/3) ... [2019-09-20 13:03:09,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b731dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:03:09, skipping insertion in model container [2019-09-20 13:03:09,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:03:08" (2/3) ... [2019-09-20 13:03:09,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b731dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:03:09, skipping insertion in model container [2019-09-20 13:03:09,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:03:09" (3/3) ... [2019-09-20 13:03:09,127 INFO L109 eAbstractionObserver]: Analyzing ICFG packet_filter.i [2019-09-20 13:03:09,137 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:03:09,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-20 13:03:09,161 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-20 13:03:09,186 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:03:09,187 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:03:09,187 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:03:09,187 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:03:09,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:03:09,188 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:03:09,188 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:03:09,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:03:09,188 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:03:09,204 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2019-09-20 13:03:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-20 13:03:09,210 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:09,210 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:09,212 INFO L418 AbstractCegarLoop]: === Iteration 1 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:09,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:09,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1068933411, now seen corresponding path program 1 times [2019-09-20 13:03:09,219 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:09,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:09,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:09,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:09,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:09,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:03:09,377 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:03:09,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:03:09,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:03:09,390 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2019-09-20 13:03:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:09,418 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2019-09-20 13:03:09,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:03:09,420 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-09-20 13:03:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:09,430 INFO L225 Difference]: With dead ends: 100 [2019-09-20 13:03:09,431 INFO L226 Difference]: Without dead ends: 57 [2019-09-20 13:03:09,434 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:03:09,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-09-20 13:03:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-09-20 13:03:09,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-09-20 13:03:09,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2019-09-20 13:03:09,484 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 14 [2019-09-20 13:03:09,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:09,484 INFO L475 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2019-09-20 13:03:09,485 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:03:09,485 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2019-09-20 13:03:09,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:03:09,485 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:09,486 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:09,486 INFO L418 AbstractCegarLoop]: === Iteration 2 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:09,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:09,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1316192133, now seen corresponding path program 1 times [2019-09-20 13:03:09,487 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:09,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:09,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:09,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:09,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:09,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:03:09,618 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:03:09,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:03:09,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:03:09,619 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 3 states. [2019-09-20 13:03:09,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:09,641 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2019-09-20 13:03:09,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:03:09,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-09-20 13:03:09,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:09,644 INFO L225 Difference]: With dead ends: 60 [2019-09-20 13:03:09,644 INFO L226 Difference]: Without dead ends: 58 [2019-09-20 13:03:09,645 INFO L636 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 [2019-09-20 13:03:09,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-09-20 13:03:09,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-09-20 13:03:09,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-20 13:03:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2019-09-20 13:03:09,655 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 15 [2019-09-20 13:03:09,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:09,655 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2019-09-20 13:03:09,655 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:03:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2019-09-20 13:03:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:03:09,656 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:09,657 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:09,657 INFO L418 AbstractCegarLoop]: === Iteration 3 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:09,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1316190211, now seen corresponding path program 1 times [2019-09-20 13:03:09,657 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:09,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:09,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:09,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:09,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:09,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:03:09,792 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:03:09,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:03:09,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:03:09,792 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 6 states. [2019-09-20 13:03:09,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:09,940 INFO L93 Difference]: Finished difference Result 95 states and 113 transitions. [2019-09-20 13:03:09,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:03:09,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-09-20 13:03:09,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:09,944 INFO L225 Difference]: With dead ends: 95 [2019-09-20 13:03:09,944 INFO L226 Difference]: Without dead ends: 68 [2019-09-20 13:03:09,945 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:03:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-09-20 13:03:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2019-09-20 13:03:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-09-20 13:03:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2019-09-20 13:03:09,957 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 15 [2019-09-20 13:03:09,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:09,958 INFO L475 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2019-09-20 13:03:09,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:03:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2019-09-20 13:03:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-20 13:03:09,959 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:09,959 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:09,959 INFO L418 AbstractCegarLoop]: === Iteration 4 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:09,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1729106577, now seen corresponding path program 1 times [2019-09-20 13:03:09,960 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:09,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:09,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:09,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:10,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:03:10,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:03:10,157 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:03:10,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:03:10,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:03:10,159 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2019-09-20 13:03:10,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:10,649 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2019-09-20 13:03:10,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:03:10,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-09-20 13:03:10,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:10,651 INFO L225 Difference]: With dead ends: 100 [2019-09-20 13:03:10,651 INFO L226 Difference]: Without dead ends: 78 [2019-09-20 13:03:10,652 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:03:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-09-20 13:03:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 60. [2019-09-20 13:03:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-09-20 13:03:10,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2019-09-20 13:03:10,675 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 21 [2019-09-20 13:03:10,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:10,675 INFO L475 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2019-09-20 13:03:10,675 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:03:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2019-09-20 13:03:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-20 13:03:10,677 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:10,677 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:10,677 INFO L418 AbstractCegarLoop]: === Iteration 5 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:10,678 INFO L82 PathProgramCache]: Analyzing trace with hash 453892566, now seen corresponding path program 1 times [2019-09-20 13:03:10,678 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:10,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:10,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:10,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:10,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:11,147 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-09-20 13:03:11,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:11,228 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:03:11,228 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:03:11,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:11,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 41 conjunts are in the unsatisfiable core [2019-09-20 13:03:11,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:03:11,537 INFO L341 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-09-20 13:03:11,538 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2019-09-20 13:03:11,538 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:11,569 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:11,570 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:11,570 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2019-09-20 13:03:11,761 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:11,761 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 69 [2019-09-20 13:03:11,763 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:11,847 INFO L567 ElimStorePlain]: treesize reduction 28, result has 60.0 percent of original size [2019-09-20 13:03:11,849 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:11,849 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:40, output treesize:42 [2019-09-20 13:03:12,030 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:12,065 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:12,070 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:12,096 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:12,100 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:12,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:12,123 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:12,136 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:12,137 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:12,138 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:100, output treesize:48 [2019-09-20 13:03:16,279 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:16,280 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 37 [2019-09-20 13:03:16,282 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:16,319 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:16,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:16,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:16,339 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:16,342 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36 [2019-09-20 13:03:16,343 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:16,375 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:16,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:16,395 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:16,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:16,400 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36 [2019-09-20 13:03:16,400 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:16,447 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:16,450 INFO L496 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 13:03:16,450 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 13 variables, input treesize:89, output treesize:15 [2019-09-20 13:03:16,460 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-09-20 13:03:16,461 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:16,469 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:16,472 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-09-20 13:03:16,473 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:16,477 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:16,477 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 13:03:16,478 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-09-20 13:03:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:16,496 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:03:16,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 14 [2019-09-20 13:03:16,496 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-20 13:03:16,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-20 13:03:16,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=144, Unknown=2, NotChecked=0, Total=182 [2019-09-20 13:03:16,497 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand 14 states. [2019-09-20 13:03:20,796 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-20 13:03:27,108 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-20 13:03:48,274 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-09-20 13:03:48,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:03:48,609 INFO L93 Difference]: Finished difference Result 145 states and 180 transitions. [2019-09-20 13:03:48,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:03:48,611 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2019-09-20 13:03:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:03:48,612 INFO L225 Difference]: With dead ends: 145 [2019-09-20 13:03:48,613 INFO L226 Difference]: Without dead ends: 118 [2019-09-20 13:03:48,614 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=78, Invalid=337, Unknown=5, NotChecked=0, Total=420 [2019-09-20 13:03:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-09-20 13:03:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 72. [2019-09-20 13:03:48,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-09-20 13:03:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2019-09-20 13:03:48,632 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 26 [2019-09-20 13:03:48,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:03:48,632 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2019-09-20 13:03:48,632 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-20 13:03:48,633 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2019-09-20 13:03:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-20 13:03:48,634 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:03:48,634 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:03:48,634 INFO L418 AbstractCegarLoop]: === Iteration 6 === [process_prio_queueErr0ASSERT_VIOLATIONERROR_FUNCTION, process_normal_queueErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:03:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:03:48,635 INFO L82 PathProgramCache]: Analyzing trace with hash -845629304, now seen corresponding path program 1 times [2019-09-20 13:03:48,635 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:03:48,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:03:48,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:48,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:48,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:03:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:49,034 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-09-20 13:03:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:49,123 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:03:49,123 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:03:49,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:03:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:03:49,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 41 conjunts are in the unsatisfiable core [2019-09-20 13:03:49,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:03:49,258 INFO L341 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-09-20 13:03:49,259 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2019-09-20 13:03:49,259 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:49,267 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:49,268 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:49,268 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2019-09-20 13:03:49,289 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:49,290 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2019-09-20 13:03:49,291 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:49,314 INFO L567 ElimStorePlain]: treesize reduction 14, result has 64.1 percent of original size [2019-09-20 13:03:49,315 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:49,315 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:25 [2019-09-20 13:03:49,368 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:49,399 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:49,404 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:49,431 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:49,434 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:49,472 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:49,475 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:49,486 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:49,487 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2019-09-20 13:03:49,488 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:100, output treesize:48 [2019-09-20 13:03:53,588 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:53,589 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-09-20 13:03:53,589 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:53,609 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:53,616 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:53,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:53,618 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:53,621 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36 [2019-09-20 13:03:53,621 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:53,641 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:53,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:53,649 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:53,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 13:03:53,652 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36 [2019-09-20 13:03:53,653 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:53,675 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:53,676 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 13:03:53,676 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 11 variables, input treesize:67, output treesize:15 [2019-09-20 13:03:53,707 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-09-20 13:03:53,708 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:53,715 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:53,718 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-09-20 13:03:53,718 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 13:03:53,723 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 13:03:53,723 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 13:03:53,723 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-09-20 13:03:53,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:03:53,739 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:03:53,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 14 [2019-09-20 13:03:53,740 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-20 13:03:53,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-20 13:03:53,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=145, Unknown=2, NotChecked=0, Total=182 [2019-09-20 13:03:53,741 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 14 states.