/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:21:25,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:21:25,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:21:25,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:21:25,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:21:25,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:21:25,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:21:25,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:21:25,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:21:25,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:21:25,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:21:25,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:21:25,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:21:25,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:21:25,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:21:25,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:21:25,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:21:25,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:21:25,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:21:25,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:21:25,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:21:25,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:21:25,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:21:25,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:21:25,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 13:21:25,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 13:21:25,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 13:21:25,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 13:21:25,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 13:21:25,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 13:21:25,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 13:21:25,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 13:21:25,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 13:21:25,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 13:21:25,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 13:21:25,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 13:21:25,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 13:21:25,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 13:21:25,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:21:25,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:21:25,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:21:25,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:21:25,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:21:25,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:21:25,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:21:25,452 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:21:25,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:21:25,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:21:25,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:21:25,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:21:25,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:21:25,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:21:25,453 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:21:25,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:21:25,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:21:25,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:21:25,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:21:25,454 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:21:25,455 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:21:25,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:21:25,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:21:25,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:21:25,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:21:25,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:21:25,456 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:21:25,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:21:25,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:21:25,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:21:25,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:21:25,761 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:21:25,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-07-17 13:21:25,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9584a5429/5a3330e5473f4aed80c9ea9459330588/FLAGe4d378f3e [2020-07-17 13:21:26,373 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:21:26,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-07-17 13:21:26,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9584a5429/5a3330e5473f4aed80c9ea9459330588/FLAGe4d378f3e [2020-07-17 13:21:26,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9584a5429/5a3330e5473f4aed80c9ea9459330588 [2020-07-17 13:21:26,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:21:26,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:21:26,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:21:26,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:21:26,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:21:26,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:21:26" (1/1) ... [2020-07-17 13:21:26,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43fb86d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:26, skipping insertion in model container [2020-07-17 13:21:26,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:21:26" (1/1) ... [2020-07-17 13:21:26,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:21:26,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:21:27,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:21:27,449 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:21:27,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:21:27,625 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:21:27,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27 WrapperNode [2020-07-17 13:21:27,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:21:27,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:21:27,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:21:27,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:21:27,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (1/1) ... [2020-07-17 13:21:27,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (1/1) ... [2020-07-17 13:21:27,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (1/1) ... [2020-07-17 13:21:27,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (1/1) ... [2020-07-17 13:21:27,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (1/1) ... [2020-07-17 13:21:27,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (1/1) ... [2020-07-17 13:21:27,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (1/1) ... [2020-07-17 13:21:27,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:21:27,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:21:27,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:21:27,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:21:27,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (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 [2020-07-17 13:21:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:21:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:21:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-07-17 13:21:27,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-17 13:21:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-17 13:21:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-07-17 13:21:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-07-17 13:21:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-07-17 13:21:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-07-17 13:21:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-07-17 13:21:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-07-17 13:21:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-07-17 13:21:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-07-17 13:21:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-07-17 13:21:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-07-17 13:21:27,830 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-07-17 13:21:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-07-17 13:21:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-07-17 13:21:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-07-17 13:21:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-07-17 13:21:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-07-17 13:21:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:21:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:21:27,836 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-17 13:21:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-17 13:21:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-17 13:21:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-17 13:21:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-17 13:21:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-17 13:21:27,837 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-17 13:21:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-17 13:21:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-17 13:21:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-17 13:21:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-17 13:21:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-17 13:21:27,838 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-17 13:21:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-17 13:21:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-17 13:21:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-17 13:21:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-17 13:21:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-17 13:21:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-17 13:21:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-17 13:21:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-17 13:21:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-17 13:21:27,843 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-17 13:21:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-17 13:21:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-17 13:21:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-17 13:21:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-17 13:21:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-17 13:21:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 13:21:27,844 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-17 13:21:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-17 13:21:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 13:21:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-17 13:21:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-17 13:21:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-17 13:21:27,845 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-17 13:21:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-17 13:21:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 13:21:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-17 13:21:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-17 13:21:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-17 13:21:27,846 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-17 13:21:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-17 13:21:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-17 13:21:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-17 13:21:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-17 13:21:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-17 13:21:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-17 13:21:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-17 13:21:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-17 13:21:27,849 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-17 13:21:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-17 13:21:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-17 13:21:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-17 13:21:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-17 13:21:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-17 13:21:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-17 13:21:27,850 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-17 13:21:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-17 13:21:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-17 13:21:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-17 13:21:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-17 13:21:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-17 13:21:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-17 13:21:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-17 13:21:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-17 13:21:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-17 13:21:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 13:21:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-07-17 13:21:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-07-17 13:21:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 13:21:27,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 13:21:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-07-17 13:21:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-07-17 13:21:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 13:21:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-07-17 13:21:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:21:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-07-17 13:21:27,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-17 13:21:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:21:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-07-17 13:21:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-07-17 13:21:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-07-17 13:21:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-07-17 13:21:27,854 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-07-17 13:21:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-07-17 13:21:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-07-17 13:21:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-07-17 13:21:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-07-17 13:21:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-07-17 13:21:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-07-17 13:21:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:21:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:21:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:21:28,763 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:21:28,764 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-07-17 13:21:28,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:21:28 BoogieIcfgContainer [2020-07-17 13:21:28,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:21:28,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:21:28,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:21:28,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:21:28,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:21:26" (1/3) ... [2020-07-17 13:21:28,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db9ce56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:21:28, skipping insertion in model container [2020-07-17 13:21:28,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:21:27" (2/3) ... [2020-07-17 13:21:28,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db9ce56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:21:28, skipping insertion in model container [2020-07-17 13:21:28,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:21:28" (3/3) ... [2020-07-17 13:21:28,779 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-07-17 13:21:28,791 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:21:28,800 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:21:28,817 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:21:28,842 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:21:28,842 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:21:28,842 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:21:28,843 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:21:28,843 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:21:28,843 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:21:28,843 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:21:28,843 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:21:28,866 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-07-17 13:21:28,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-07-17 13:21:28,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:21:28,883 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:21:28,884 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:21:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:21:28,891 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-07-17 13:21:28,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:21:28,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326079144] [2020-07-17 13:21:28,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:21:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-17 13:21:29,558 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:21:29,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326079144] [2020-07-17 13:21:29,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:21:29,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 13:21:29,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211227897] [2020-07-17 13:21:29,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 13:21:29,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:21:29,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 13:21:29,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 13:21:29,591 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-07-17 13:21:30,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:21:30,444 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-07-17 13:21:30,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 13:21:30,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-07-17 13:21:30,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:21:30,463 INFO L225 Difference]: With dead ends: 568 [2020-07-17 13:21:30,463 INFO L226 Difference]: Without dead ends: 275 [2020-07-17 13:21:30,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:21:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-07-17 13:21:30,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-07-17 13:21:30,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-07-17 13:21:30,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-07-17 13:21:30,593 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-07-17 13:21:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:21:30,594 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-07-17 13:21:30,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 13:21:30,595 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-07-17 13:21:30,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-17 13:21:30,606 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:21:30,607 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:21:30,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:21:30,607 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:21:30,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:21:30,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-07-17 13:21:30,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:21:30,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135554852] [2020-07-17 13:21:30,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:21:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-17 13:21:31,136 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:21:31,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135554852] [2020-07-17 13:21:31,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:21:31,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-17 13:21:31,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336007933] [2020-07-17 13:21:31,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 13:21:31,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:21:31,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 13:21:31,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-07-17 13:21:31,139 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 14 states. [2020-07-17 13:21:32,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:21:32,984 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-07-17 13:21:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 13:21:32,985 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 87 [2020-07-17 13:21:32,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:21:32,990 INFO L225 Difference]: With dead ends: 542 [2020-07-17 13:21:32,990 INFO L226 Difference]: Without dead ends: 296 [2020-07-17 13:21:32,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2020-07-17 13:21:32,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-07-17 13:21:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-07-17 13:21:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-07-17 13:21:33,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-07-17 13:21:33,051 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-07-17 13:21:33,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:21:33,052 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-07-17 13:21:33,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 13:21:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-07-17 13:21:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-17 13:21:33,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:21:33,056 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:21:33,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:21:33,057 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:21:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:21:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-07-17 13:21:33,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:21:33,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962204922] [2020-07-17 13:21:33,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:21:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:21:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 38 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-17 13:21:57,550 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:21:57,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962204922] [2020-07-17 13:21:57,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:21:57,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2020-07-17 13:21:57,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596129545] [2020-07-17 13:21:57,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-07-17 13:21:57,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:21:57,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-07-17 13:21:57,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=3639, Unknown=73, NotChecked=0, Total=3906 [2020-07-17 13:21:57,555 INFO L87 Difference]: Start difference. First operand 276 states and 307 transitions. Second operand 63 states. [2020-07-17 13:22:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:22:05,131 INFO L93 Difference]: Finished difference Result 574 states and 655 transitions. [2020-07-17 13:22:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-17 13:22:05,132 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 235 [2020-07-17 13:22:05,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:22:05,137 INFO L225 Difference]: With dead ends: 574 [2020-07-17 13:22:05,138 INFO L226 Difference]: Without dead ends: 311 [2020-07-17 13:22:05,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2048 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=431, Invalid=8614, Unknown=75, NotChecked=0, Total=9120 [2020-07-17 13:22:05,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-07-17 13:22:05,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 286. [2020-07-17 13:22:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-17 13:22:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 319 transitions. [2020-07-17 13:22:05,184 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 319 transitions. Word has length 235 [2020-07-17 13:22:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:22:05,185 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 319 transitions. [2020-07-17 13:22:05,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-07-17 13:22:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 319 transitions. [2020-07-17 13:22:05,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-07-17 13:22:05,189 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:22:05,190 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:22:05,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 13:22:05,190 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:22:05,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:22:05,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1561006854, now seen corresponding path program 1 times [2020-07-17 13:22:05,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:22:05,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815421371] [2020-07-17 13:22:05,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:22:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-07-17 13:22:10,056 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:22:10,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815421371] [2020-07-17 13:22:10,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:22:10,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2020-07-17 13:22:10,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525516104] [2020-07-17 13:22:10,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-07-17 13:22:10,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:22:10,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-07-17 13:22:10,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1607, Unknown=4, NotChecked=0, Total=1722 [2020-07-17 13:22:10,060 INFO L87 Difference]: Start difference. First operand 286 states and 319 transitions. Second operand 42 states. [2020-07-17 13:22:11,189 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-07-17 13:22:11,610 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-07-17 13:22:12,007 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-07-17 13:22:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:22:16,438 INFO L93 Difference]: Finished difference Result 588 states and 663 transitions. [2020-07-17 13:22:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-17 13:22:16,442 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 237 [2020-07-17 13:22:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:22:16,446 INFO L225 Difference]: With dead ends: 588 [2020-07-17 13:22:16,446 INFO L226 Difference]: Without dead ends: 317 [2020-07-17 13:22:16,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=293, Invalid=3993, Unknown=4, NotChecked=0, Total=4290 [2020-07-17 13:22:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-17 13:22:16,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 295. [2020-07-17 13:22:16,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-07-17 13:22:16,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 329 transitions. [2020-07-17 13:22:16,482 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 329 transitions. Word has length 237 [2020-07-17 13:22:16,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:22:16,483 INFO L479 AbstractCegarLoop]: Abstraction has 295 states and 329 transitions. [2020-07-17 13:22:16,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-07-17 13:22:16,484 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 329 transitions. [2020-07-17 13:22:16,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-17 13:22:16,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:22:16,488 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 13:22:16,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 13:22:16,488 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:22:16,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:22:16,489 INFO L82 PathProgramCache]: Analyzing trace with hash -978473208, now seen corresponding path program 1 times [2020-07-17 13:22:16,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:22:16,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047868937] [2020-07-17 13:22:16,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:22:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,759 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-07-17 13:22:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:18,482 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-07-17 13:22:23,212 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:22:23,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047868937] [2020-07-17 13:22:23,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:22:23,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2020-07-17 13:22:23,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740837096] [2020-07-17 13:22:23,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-17 13:22:23,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:22:23,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-17 13:22:23,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=974, Unknown=4, NotChecked=0, Total=1056 [2020-07-17 13:22:23,215 INFO L87 Difference]: Start difference. First operand 295 states and 329 transitions. Second operand 33 states. [2020-07-17 13:22:23,762 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-17 13:22:24,720 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-07-17 13:22:26,528 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-07-17 13:22:27,389 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-07-17 13:22:28,204 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-07-17 13:22:28,856 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-07-17 13:22:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:22:42,535 INFO L93 Difference]: Finished difference Result 692 states and 776 transitions. [2020-07-17 13:22:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-17 13:22:42,541 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 239 [2020-07-17 13:22:42,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:22:42,546 INFO L225 Difference]: With dead ends: 692 [2020-07-17 13:22:42,546 INFO L226 Difference]: Without dead ends: 415 [2020-07-17 13:22:42,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=213, Invalid=2747, Unknown=10, NotChecked=0, Total=2970 [2020-07-17 13:22:42,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-07-17 13:22:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 332. [2020-07-17 13:22:42,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-07-17 13:22:42,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 369 transitions. [2020-07-17 13:22:42,586 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 369 transitions. Word has length 239 [2020-07-17 13:22:42,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:22:42,587 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 369 transitions. [2020-07-17 13:22:42,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-17 13:22:42,587 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 369 transitions. [2020-07-17 13:22:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-07-17 13:22:42,590 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:22:42,591 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-17 13:22:42,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 13:22:42,591 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:22:42,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:22:42,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1682472288, now seen corresponding path program 1 times [2020-07-17 13:22:42,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:22:42,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13677599] [2020-07-17 13:22:42,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:22:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:45,885 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 27 [2020-07-17 13:22:46,680 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 41 [2020-07-17 13:22:49,025 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 24 [2020-07-17 13:22:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:52,756 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-07-17 13:22:53,006 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-07-17 13:22:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:22:55,861 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 13:22:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:25:20,646 WARN L193 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 429 DAG size of output: 50