/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:00:38,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:00:38,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:00:38,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 01:00:38,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 01:00:38,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 01:00:38,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 01:00:38,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 01:00:38,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 01:00:38,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 01:00:38,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 01:00:38,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 01:00:38,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:00:38,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:00:38,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:00:38,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:00:38,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:00:38,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:00:38,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:00:38,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:00:38,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:00:38,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:00:38,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:00:38,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:00:38,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 01:00:38,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 01:00:38,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 01:00:38,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 01:00:38,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 01:00:38,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 01:00:38,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 01:00:38,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 01:00:38,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 01:00:38,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 01:00:38,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 01:00:38,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 01:00:38,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 01:00:38,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 01:00:38,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:00:38,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:00:38,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:00:38,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:00:38,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:00:38,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:00:38,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:00:38,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:00:38,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:00:38,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:00:38,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:00:38,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:00:38,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:00:38,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:00:38,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:00:38,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:00:38,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:00:38,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:00:38,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:00:38,562 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:00:38,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:00:38,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:00:38,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:00:38,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:00:38,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:00:38,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:00:38,564 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:00:38,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:00:39,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:00:39,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:00:39,009 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:00:39,010 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:00:39,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-10-24 01:00:39,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8c0794b/8a8df2bd8d074ab3a4858c7c5a9f7ac2/FLAGa1595aa4a [2020-10-24 01:00:39,744 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:00:39,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-10-24 01:00:39,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8c0794b/8a8df2bd8d074ab3a4858c7c5a9f7ac2/FLAGa1595aa4a [2020-10-24 01:00:40,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8c0794b/8a8df2bd8d074ab3a4858c7c5a9f7ac2 [2020-10-24 01:00:40,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:00:40,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:00:40,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:00:40,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:00:40,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:00:40,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eee25a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40, skipping insertion in model container [2020-10-24 01:00:40,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:00:40,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:00:40,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:00:40,569 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:00:40,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:00:40,767 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:00:40,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40 WrapperNode [2020-10-24 01:00:40,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:00:40,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:00:40,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:00:40,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:00:40,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (1/1) ... [2020-10-24 01:00:40,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:00:40,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:00:40,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:00:40,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:00:40,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (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 [2020-10-24 01:00:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:00:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:00:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-24 01:00:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:00:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-24 01:00:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-24 01:00:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-24 01:00:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-10-24 01:00:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-10-24 01:00:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-10-24 01:00:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-10-24 01:00:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-10-24 01:00:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-10-24 01:00:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-10-24 01:00:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-10-24 01:00:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-10-24 01:00:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-10-24 01:00:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-10-24 01:00:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-10-24 01:00:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-10-24 01:00:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-10-24 01:00:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-10-24 01:00:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:00:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:00:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:00:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-24 01:00:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-24 01:00:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:00:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:00:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-24 01:00:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-24 01:00:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-24 01:00:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-24 01:00:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-24 01:00:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-24 01:00:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-24 01:00:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-24 01:00:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-24 01:00:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-24 01:00:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-24 01:00:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-24 01:00:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-24 01:00:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-24 01:00:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-24 01:00:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-24 01:00:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-24 01:00:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-24 01:00:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-24 01:00:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-24 01:00:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-24 01:00:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-24 01:00:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-24 01:00:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-24 01:00:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-24 01:00:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-24 01:00:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-24 01:00:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-24 01:00:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-24 01:00:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-24 01:00:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-24 01:00:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-24 01:00:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-24 01:00:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-24 01:00:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-24 01:00:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-24 01:00:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-24 01:00:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-24 01:00:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-24 01:00:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-24 01:00:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-24 01:00:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-24 01:00:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-24 01:00:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-24 01:00:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-24 01:00:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-24 01:00:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-24 01:00:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-24 01:00:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-24 01:00:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-24 01:00:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-24 01:00:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-24 01:00:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-24 01:00:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-24 01:00:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-24 01:00:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-24 01:00:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-24 01:00:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 01:00:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-24 01:00:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-24 01:00:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-24 01:00:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-24 01:00:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-24 01:00:41,004 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-24 01:00:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-24 01:00:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-24 01:00:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-24 01:00:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-24 01:00:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-24 01:00:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-24 01:00:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-24 01:00:41,006 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-24 01:00:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-24 01:00:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-24 01:00:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 01:00:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-24 01:00:41,007 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-10-24 01:00:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-24 01:00:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-24 01:00:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-10-24 01:00:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-10-24 01:00:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-24 01:00:41,008 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-10-24 01:00:41,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-24 01:00:41,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-24 01:00:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:00:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-10-24 01:00:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-10-24 01:00:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-10-24 01:00:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-10-24 01:00:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-10-24 01:00:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-10-24 01:00:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:00:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:00:41,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:00:42,173 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:00:42,173 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-10-24 01:00:42,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:00:42 BoogieIcfgContainer [2020-10-24 01:00:42,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:00:42,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:00:42,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:00:42,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:00:42,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:00:40" (1/3) ... [2020-10-24 01:00:42,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9bdc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:00:42, skipping insertion in model container [2020-10-24 01:00:42,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:00:40" (2/3) ... [2020-10-24 01:00:42,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9bdc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:00:42, skipping insertion in model container [2020-10-24 01:00:42,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:00:42" (3/3) ... [2020-10-24 01:00:42,185 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-10-24 01:00:42,197 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:00:42,203 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:00:42,220 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:00:42,246 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:00:42,246 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:00:42,246 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:00:42,246 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:00:42,246 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:00:42,246 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:00:42,246 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:00:42,247 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:00:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-10-24 01:00:42,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-24 01:00:42,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:42,285 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, 1, 1, 1, 1] [2020-10-24 01:00:42,285 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:42,292 INFO L82 PathProgramCache]: Analyzing trace with hash 460633146, now seen corresponding path program 1 times [2020-10-24 01:00:42,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:42,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101808368] [2020-10-24 01:00:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:42,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-24 01:00:43,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101808368] [2020-10-24 01:00:43,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:00:43,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 01:00:43,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753788704] [2020-10-24 01:00:43,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 01:00:43,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:00:43,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 01:00:43,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 01:00:43,089 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2020-10-24 01:00:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:00:43,833 INFO L93 Difference]: Finished difference Result 580 states and 782 transitions. [2020-10-24 01:00:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:00:43,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-10-24 01:00:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:00:43,853 INFO L225 Difference]: With dead ends: 580 [2020-10-24 01:00:43,853 INFO L226 Difference]: Without dead ends: 281 [2020-10-24 01:00:43,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:00:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-24 01:00:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2020-10-24 01:00:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-24 01:00:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions. [2020-10-24 01:00:43,998 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 91 [2020-10-24 01:00:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:00:44,000 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions. [2020-10-24 01:00:44,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 01:00:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions. [2020-10-24 01:00:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-24 01:00:44,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:44,016 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, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:44,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:00:44,017 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:44,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:44,018 INFO L82 PathProgramCache]: Analyzing trace with hash -409331855, now seen corresponding path program 1 times [2020-10-24 01:00:44,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:44,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844557730] [2020-10-24 01:00:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-24 01:00:44,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844557730] [2020-10-24 01:00:44,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:00:44,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-24 01:00:44,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519067273] [2020-10-24 01:00:44,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-24 01:00:44,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:00:44,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-24 01:00:44,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-24 01:00:44,650 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand 13 states. [2020-10-24 01:00:45,188 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-24 01:00:47,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:00:47,032 INFO L93 Difference]: Finished difference Result 550 states and 629 transitions. [2020-10-24 01:00:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 01:00:47,032 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-10-24 01:00:47,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:00:47,038 INFO L225 Difference]: With dead ends: 550 [2020-10-24 01:00:47,038 INFO L226 Difference]: Without dead ends: 302 [2020-10-24 01:00:47,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-10-24 01:00:47,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-24 01:00:47,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2020-10-24 01:00:47,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-24 01:00:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2020-10-24 01:00:47,109 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 93 [2020-10-24 01:00:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:00:47,109 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2020-10-24 01:00:47,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-24 01:00:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2020-10-24 01:00:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-24 01:00:47,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:47,113 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, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:47,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 01:00:47,113 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:47,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1433981389, now seen corresponding path program 1 times [2020-10-24 01:00:47,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:47,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860105647] [2020-10-24 01:00:47,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:47,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:47,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:47,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:47,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-24 01:00:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:48,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:00:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:49,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 141 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-24 01:00:50,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860105647] [2020-10-24 01:00:50,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:00:50,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-24 01:00:50,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229905895] [2020-10-24 01:00:50,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-24 01:00:50,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:00:50,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-24 01:00:50,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1392, Unknown=0, NotChecked=0, Total=1482 [2020-10-24 01:00:50,070 INFO L87 Difference]: Start difference. First operand 282 states and 313 transitions. Second operand 39 states. [2020-10-24 01:00:52,695 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-10-24 01:00:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:00:58,717 INFO L93 Difference]: Finished difference Result 582 states and 663 transitions. [2020-10-24 01:00:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-24 01:00:58,717 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 241 [2020-10-24 01:00:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:00:58,722 INFO L225 Difference]: With dead ends: 582 [2020-10-24 01:00:58,722 INFO L226 Difference]: Without dead ends: 317 [2020-10-24 01:00:58,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=327, Invalid=4785, Unknown=0, NotChecked=0, Total=5112 [2020-10-24 01:00:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-10-24 01:00:58,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 292. [2020-10-24 01:00:58,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-24 01:00:58,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 325 transitions. [2020-10-24 01:00:58,792 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 325 transitions. Word has length 241 [2020-10-24 01:00:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:00:58,793 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 325 transitions. [2020-10-24 01:00:58,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-24 01:00:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 325 transitions. [2020-10-24 01:00:58,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-24 01:00:58,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:00:58,802 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, 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, 1, 1, 1, 1, 1, 1] [2020-10-24 01:00:58,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 01:00:58,802 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:00:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:00:58,803 INFO L82 PathProgramCache]: Analyzing trace with hash 790601, now seen corresponding path program 1 times [2020-10-24 01:00:58,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:00:58,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500261702] [2020-10-24 01:00:58,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:00:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:00:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-24 01:00:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-24 01:00:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:00:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:00:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:00:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:00:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:00:59,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:00:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:00,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:00,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-24 01:01:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:00,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:00,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 95 proven. 23 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-24 01:01:00,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500261702] [2020-10-24 01:01:00,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:01:00,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-24 01:01:00,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326881715] [2020-10-24 01:01:00,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-24 01:01:00,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:01:00,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-24 01:01:00,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-10-24 01:01:00,978 INFO L87 Difference]: Start difference. First operand 292 states and 325 transitions. Second operand 23 states. [2020-10-24 01:01:02,482 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-10-24 01:01:02,841 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-10-24 01:01:03,233 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-10-24 01:01:03,523 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-10-24 01:01:07,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:01:07,294 INFO L93 Difference]: Finished difference Result 585 states and 660 transitions. [2020-10-24 01:01:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-24 01:01:07,295 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 245 [2020-10-24 01:01:07,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:01:07,298 INFO L225 Difference]: With dead ends: 585 [2020-10-24 01:01:07,298 INFO L226 Difference]: Without dead ends: 312 [2020-10-24 01:01:07,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2020-10-24 01:01:07,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-24 01:01:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 292. [2020-10-24 01:01:07,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-24 01:01:07,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 323 transitions. [2020-10-24 01:01:07,339 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 323 transitions. Word has length 245 [2020-10-24 01:01:07,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:01:07,340 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 323 transitions. [2020-10-24 01:01:07,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-24 01:01:07,340 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 323 transitions. [2020-10-24 01:01:07,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-24 01:01:07,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:01:07,344 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, 1, 1, 1, 1, 1, 1] [2020-10-24 01:01:07,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 01:01:07,344 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:01:07,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:01:07,344 INFO L82 PathProgramCache]: Analyzing trace with hash 820570067, now seen corresponding path program 1 times [2020-10-24 01:01:07,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:01:07,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339404362] [2020-10-24 01:01:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:01:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:07,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:07,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:01:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:07,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:07,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:07,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:01:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 01:01:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:08,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:01:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 38 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2020-10-24 01:01:09,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339404362] [2020-10-24 01:01:09,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:01:09,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-24 01:01:09,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908430605] [2020-10-24 01:01:09,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-24 01:01:09,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:01:09,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-24 01:01:09,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2020-10-24 01:01:09,661 INFO L87 Difference]: Start difference. First operand 292 states and 323 transitions. Second operand 32 states. [2020-10-24 01:01:11,282 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-10-24 01:01:11,470 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-10-24 01:01:11,707 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-24 01:01:11,959 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-10-24 01:01:12,186 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-10-24 01:01:17,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:01:17,755 INFO L93 Difference]: Finished difference Result 596 states and 667 transitions. [2020-10-24 01:01:17,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-24 01:01:17,756 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 243 [2020-10-24 01:01:17,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:01:17,766 INFO L225 Difference]: With dead ends: 596 [2020-10-24 01:01:17,766 INFO L226 Difference]: Without dead ends: 323 [2020-10-24 01:01:17,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=256, Invalid=2824, Unknown=0, NotChecked=0, Total=3080 [2020-10-24 01:01:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-24 01:01:17,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 301. [2020-10-24 01:01:17,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-24 01:01:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 333 transitions. [2020-10-24 01:01:17,823 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 333 transitions. Word has length 243 [2020-10-24 01:01:17,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:01:17,825 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 333 transitions. [2020-10-24 01:01:17,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-24 01:01:17,825 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 333 transitions. [2020-10-24 01:01:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-24 01:01:17,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:01:17,830 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, 1, 1] [2020-10-24 01:01:17,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 01:01:17,830 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:01:17,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:01:17,832 INFO L82 PathProgramCache]: Analyzing trace with hash 791701158, now seen corresponding path program 1 times [2020-10-24 01:01:17,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:01:17,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530602264] [2020-10-24 01:01:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:01:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:17,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:01:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:01:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 01:01:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:01:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:18,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-10-24 01:01:19,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530602264] [2020-10-24 01:01:19,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:01:19,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-24 01:01:19,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752955261] [2020-10-24 01:01:19,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-24 01:01:19,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:01:19,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-24 01:01:19,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-10-24 01:01:19,287 INFO L87 Difference]: Start difference. First operand 301 states and 333 transitions. Second operand 24 states. [2020-10-24 01:01:23,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:01:23,918 INFO L93 Difference]: Finished difference Result 535 states and 600 transitions. [2020-10-24 01:01:23,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-24 01:01:23,919 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 244 [2020-10-24 01:01:23,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:01:23,925 INFO L225 Difference]: With dead ends: 535 [2020-10-24 01:01:23,925 INFO L226 Difference]: Without dead ends: 423 [2020-10-24 01:01:23,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2020-10-24 01:01:23,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-10-24 01:01:23,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 338. [2020-10-24 01:01:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-24 01:01:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 375 transitions. [2020-10-24 01:01:23,979 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 375 transitions. Word has length 244 [2020-10-24 01:01:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:01:23,981 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 375 transitions. [2020-10-24 01:01:23,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-24 01:01:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 375 transitions. [2020-10-24 01:01:23,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-24 01:01:23,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:01:23,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:01:23,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 01:01:23,985 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:01:23,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:01:23,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1801672502, now seen corresponding path program 1 times [2020-10-24 01:01:23,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:01:23,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33320785] [2020-10-24 01:01:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:01:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:24,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:24,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:01:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:24,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:24,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:24,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,161 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-10-24 01:01:25,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:01:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-24 01:01:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:01:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-10-24 01:01:25,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33320785] [2020-10-24 01:01:25,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 01:01:25,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-24 01:01:25,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357852097] [2020-10-24 01:01:25,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-24 01:01:25,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:01:25,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-24 01:01:25,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-24 01:01:25,767 INFO L87 Difference]: Start difference. First operand 338 states and 375 transitions. Second operand 17 states. [2020-10-24 01:01:26,255 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-10-24 01:01:26,569 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-24 01:01:27,639 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-10-24 01:01:28,391 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-24 01:01:29,288 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-10-24 01:01:29,994 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-10-24 01:01:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:01:33,580 INFO L93 Difference]: Finished difference Result 674 states and 749 transitions. [2020-10-24 01:01:33,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-24 01:01:33,581 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 249 [2020-10-24 01:01:33,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:01:33,587 INFO L225 Difference]: With dead ends: 674 [2020-10-24 01:01:33,587 INFO L226 Difference]: Without dead ends: 358 [2020-10-24 01:01:33,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2020-10-24 01:01:33,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-24 01:01:33,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 338. [2020-10-24 01:01:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-24 01:01:33,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 373 transitions. [2020-10-24 01:01:33,645 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 373 transitions. Word has length 249 [2020-10-24 01:01:33,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:01:33,645 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 373 transitions. [2020-10-24 01:01:33,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-24 01:01:33,645 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 373 transitions. [2020-10-24 01:01:33,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-24 01:01:33,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:01:33,649 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, 1, 1, 1, 1, 1, 1] [2020-10-24 01:01:33,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 01:01:33,649 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:01:33,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:01:33,650 INFO L82 PathProgramCache]: Analyzing trace with hash 554881775, now seen corresponding path program 1 times [2020-10-24 01:01:33,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:01:33,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606448258] [2020-10-24 01:01:33,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:01:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:34,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-24 01:01:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:34,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:34,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:35,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:35,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:35,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-24 01:01:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:35,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:36,781 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 23 [2020-10-24 01:01:37,328 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 25 [2020-10-24 01:01:39,303 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 19 [2020-10-24 01:01:40,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-24 01:01:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:40,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:40,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:40,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 01:01:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:40,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:40,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-24 01:01:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:41,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 01:01:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:42,181 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-10-24 01:01:42,480 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-10-24 01:01:42,787 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-10-24 01:01:43,160 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-10-24 01:01:43,430 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-10-24 01:01:43,756 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-10-24 01:01:44,011 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-10-24 01:01:44,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-24 01:01:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:44,989 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2020-10-24 01:01:44,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-24 01:01:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:01:50,617 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-10-24 01:01:50,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:01:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:03:42,155 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 218 DAG size of output: 47