/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:47:53,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:47:53,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:47:53,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:47:53,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:47:53,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:47:53,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:47:53,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:47:53,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:47:53,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:47:53,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:47:53,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:47:53,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:47:53,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:47:53,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:47:53,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:47:53,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:47:53,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:47:53,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:47:53,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:47:53,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:47:53,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:47:53,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:47:53,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:47:53,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:47:53,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:47:53,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:47:53,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:47:53,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:47:53,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:47:53,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:47:53,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:47:53,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:47:53,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:47:53,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:47:53,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:47:53,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:47:53,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:47:53,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:47:53,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:47:53,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:47:53,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:47:53,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:47:53,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:47:53,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:47:53,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:47:53,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:47:53,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:47:53,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:47:53,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:47:53,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:47:53,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:47:53,999 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:47:54,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:47:54,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:47:54,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:47:54,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:47:54,000 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:47:54,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:47:54,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:47:54,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:47:54,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:47:54,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:47:54,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:47:54,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:47:54,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:47:54,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:47:54,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:47:54,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:47:54,435 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:47:54,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-11-07 00:47:54,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5713ebb/0901d19b425a41eebe95a35bf630c5a2/FLAG538d326c7 [2020-11-07 00:47:55,316 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:47:55,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-11-07 00:47:55,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5713ebb/0901d19b425a41eebe95a35bf630c5a2/FLAG538d326c7 [2020-11-07 00:47:55,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5713ebb/0901d19b425a41eebe95a35bf630c5a2 [2020-11-07 00:47:55,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:47:55,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:47:55,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:47:55,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:47:55,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:47:55,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:55" (1/1) ... [2020-11-07 00:47:55,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad0f33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:55, skipping insertion in model container [2020-11-07 00:47:55,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:55" (1/1) ... [2020-11-07 00:47:55,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:47:55,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:47:56,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:47:56,244 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:47:56,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:47:56,490 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:47:56,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56 WrapperNode [2020-11-07 00:47:56,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:47:56,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:47:56,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:47:56,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:47:56,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (1/1) ... [2020-11-07 00:47:56,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (1/1) ... [2020-11-07 00:47:56,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (1/1) ... [2020-11-07 00:47:56,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (1/1) ... [2020-11-07 00:47:56,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (1/1) ... [2020-11-07 00:47:56,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (1/1) ... [2020-11-07 00:47:56,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (1/1) ... [2020-11-07 00:47:56,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:47:56,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:47:56,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:47:56,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:47:56,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (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 [2020-11-07 00:47:56,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:47:56,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:47:56,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 00:47:56,762 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:47:56,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 00:47:56,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 00:47:56,763 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-07 00:47:56,763 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-11-07 00:47:56,763 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-11-07 00:47:56,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-11-07 00:47:56,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-11-07 00:47:56,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-11-07 00:47:56,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-11-07 00:47:56,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-11-07 00:47:56,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-11-07 00:47:56,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-11-07 00:47:56,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-11-07 00:47:56,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-11-07 00:47:56,765 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-11-07 00:47:56,766 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-11-07 00:47:56,766 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-11-07 00:47:56,767 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-11-07 00:47:56,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:47:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:47:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:47:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 00:47:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 00:47:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:47:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:47:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 00:47:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 00:47:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 00:47:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 00:47:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 00:47:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 00:47:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 00:47:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 00:47:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 00:47:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 00:47:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 00:47:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 00:47:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 00:47:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 00:47:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 00:47:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 00:47:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 00:47:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 00:47:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 00:47:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 00:47:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 00:47:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 00:47:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 00:47:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 00:47:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 00:47:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 00:47:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 00:47:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 00:47:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 00:47:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 00:47:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 00:47:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 00:47:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 00:47:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 00:47:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 00:47:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 00:47:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 00:47:56,775 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 00:47:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 00:47:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 00:47:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 00:47:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 00:47:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 00:47:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 00:47:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 00:47:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 00:47:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 00:47:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 00:47:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 00:47:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 00:47:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 00:47:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 00:47:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:47:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 00:47:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 00:47:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:47:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 00:47:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 00:47:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 00:47:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 00:47:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 00:47:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 00:47:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 00:47:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 00:47:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 00:47:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 00:47:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 00:47:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 00:47:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 00:47:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 00:47:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 00:47:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 00:47:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 00:47:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 00:47:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 00:47:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 00:47:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 00:47:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 00:47:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 00:47:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 00:47:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 00:47:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 00:47:56,785 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 00:47:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 00:47:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 00:47:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 00:47:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 00:47:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 00:47:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 00:47:56,786 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 00:47:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 00:47:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 00:47:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 00:47:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 00:47:56,787 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 00:47:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 00:47:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 00:47:56,788 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 00:47:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 00:47:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 00:47:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 00:47:56,789 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 00:47:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 00:47:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 00:47:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:47:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-07 00:47:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-11-07 00:47:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:47:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:47:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-11-07 00:47:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-11-07 00:47:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:47:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-11-07 00:47:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 00:47:56,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-07 00:47:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:47:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-11-07 00:47:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-11-07 00:47:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-11-07 00:47:56,797 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-11-07 00:47:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-11-07 00:47:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-11-07 00:47:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-11-07 00:47:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-11-07 00:47:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-11-07 00:47:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-11-07 00:47:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-11-07 00:47:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:47:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:47:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:47:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:47:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:47:56,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:47:58,062 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:47:58,062 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-11-07 00:47:58,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:58 BoogieIcfgContainer [2020-11-07 00:47:58,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:47:58,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:47:58,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:47:58,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:47:58,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:47:55" (1/3) ... [2020-11-07 00:47:58,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ae1785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:58, skipping insertion in model container [2020-11-07 00:47:58,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56" (2/3) ... [2020-11-07 00:47:58,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ae1785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:58, skipping insertion in model container [2020-11-07 00:47:58,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:58" (3/3) ... [2020-11-07 00:47:58,075 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-11-07 00:47:58,091 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:47:58,096 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:47:58,108 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:47:58,134 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:47:58,134 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:47:58,135 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:47:58,135 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:47:58,135 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:47:58,135 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:47:58,135 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:47:58,135 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:47:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-11-07 00:47:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-07 00:47:58,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:47:58,173 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] [2020-11-07 00:47:58,173 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:47:58,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:47:58,180 INFO L82 PathProgramCache]: Analyzing trace with hash 460633146, now seen corresponding path program 1 times [2020-11-07 00:47:58,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:47:58,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478657532] [2020-11-07 00:47:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:47:58,281 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:47:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:47:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:47:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:47:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:47:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:47:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:47:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:47:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:47:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:47:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:47:58,915 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-07 00:47:58,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478657532] [2020-11-07 00:47:58,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:47:58,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:47:58,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733543149] [2020-11-07 00:47:58,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:47:58,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:47:58,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:47:58,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:47:58,946 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2020-11-07 00:47:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:47:59,712 INFO L93 Difference]: Finished difference Result 580 states and 782 transitions. [2020-11-07 00:47:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:47:59,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-11-07 00:47:59,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:47:59,730 INFO L225 Difference]: With dead ends: 580 [2020-11-07 00:47:59,730 INFO L226 Difference]: Without dead ends: 281 [2020-11-07 00:47:59,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:47:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-07 00:47:59,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2020-11-07 00:47:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-07 00:47:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions. [2020-11-07 00:47:59,854 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 91 [2020-11-07 00:47:59,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:47:59,855 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions. [2020-11-07 00:47:59,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:47:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions. [2020-11-07 00:47:59,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-07 00:47:59,860 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:47:59,860 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] [2020-11-07 00:47:59,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:47:59,861 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:47:59,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:47:59,862 INFO L82 PathProgramCache]: Analyzing trace with hash -409331855, now seen corresponding path program 1 times [2020-11-07 00:47:59,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:47:59,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973405653] [2020-11-07 00:47:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:47:59,870 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:47:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-11-07 00:48:00,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973405653] [2020-11-07 00:48:00,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:00,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 00:48:00,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659598182] [2020-11-07 00:48:00,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 00:48:00,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:00,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 00:48:00,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-11-07 00:48:00,521 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand 13 states. [2020-11-07 00:48:02,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:02,947 INFO L93 Difference]: Finished difference Result 550 states and 629 transitions. [2020-11-07 00:48:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:48:02,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-11-07 00:48:02,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:02,953 INFO L225 Difference]: With dead ends: 550 [2020-11-07 00:48:02,953 INFO L226 Difference]: Without dead ends: 302 [2020-11-07 00:48:02,956 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 [2020-11-07 00:48:02,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-11-07 00:48:03,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2020-11-07 00:48:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-07 00:48:03,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2020-11-07 00:48:03,011 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 93 [2020-11-07 00:48:03,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:03,011 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2020-11-07 00:48:03,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 00:48:03,012 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2020-11-07 00:48:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-07 00:48:03,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:03,016 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] [2020-11-07 00:48:03,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:48:03,016 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:03,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:03,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1433981389, now seen corresponding path program 1 times [2020-11-07 00:48:03,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:03,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889519270] [2020-11-07 00:48:03,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:03,025 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:03,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:03,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:03,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:03,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:03,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:03,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-11-07 00:48:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:05,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 38 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-07 00:48:05,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889519270] [2020-11-07 00:48:05,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:05,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2020-11-07 00:48:05,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265409631] [2020-11-07 00:48:05,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-11-07 00:48:05,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:05,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-11-07 00:48:05,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1392, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 00:48:05,968 INFO L87 Difference]: Start difference. First operand 282 states and 313 transitions. Second operand 39 states. [2020-11-07 00:48:08,529 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-07 00:48:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:14,551 INFO L93 Difference]: Finished difference Result 582 states and 663 transitions. [2020-11-07 00:48:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-07 00:48:14,552 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 241 [2020-11-07 00:48:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:14,559 INFO L225 Difference]: With dead ends: 582 [2020-11-07 00:48:14,560 INFO L226 Difference]: Without dead ends: 317 [2020-11-07 00:48:14,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=327, Invalid=4785, Unknown=0, NotChecked=0, Total=5112 [2020-11-07 00:48:14,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-11-07 00:48:14,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 292. [2020-11-07 00:48:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-11-07 00:48:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 325 transitions. [2020-11-07 00:48:14,642 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 325 transitions. Word has length 241 [2020-11-07 00:48:14,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:14,646 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 325 transitions. [2020-11-07 00:48:14,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-11-07 00:48:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 325 transitions. [2020-11-07 00:48:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-07 00:48:14,659 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:14,659 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] [2020-11-07 00:48:14,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:48:14,660 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:14,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:14,660 INFO L82 PathProgramCache]: Analyzing trace with hash 820570067, now seen corresponding path program 1 times [2020-11-07 00:48:14,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:14,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316650078] [2020-11-07 00:48:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:14,672 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:14,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:14,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:15,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:48:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-11-07 00:48:17,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316650078] [2020-11-07 00:48:17,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:17,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2020-11-07 00:48:17,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14197595] [2020-11-07 00:48:17,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-11-07 00:48:17,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:17,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-11-07 00:48:17,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2020-11-07 00:48:17,081 INFO L87 Difference]: Start difference. First operand 292 states and 325 transitions. Second operand 32 states. [2020-11-07 00:48:18,662 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-07 00:48:18,847 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-07 00:48:19,097 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 00:48:19,335 WARN L194 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-11-07 00:48:19,532 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 00:48:24,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:24,924 INFO L93 Difference]: Finished difference Result 596 states and 671 transitions. [2020-11-07 00:48:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-07 00:48:24,925 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 243 [2020-11-07 00:48:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:24,930 INFO L225 Difference]: With dead ends: 596 [2020-11-07 00:48:24,930 INFO L226 Difference]: Without dead ends: 323 [2020-11-07 00:48:24,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=256, Invalid=2824, Unknown=0, NotChecked=0, Total=3080 [2020-11-07 00:48:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-11-07 00:48:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 301. [2020-11-07 00:48:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 00:48:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 335 transitions. [2020-11-07 00:48:24,974 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 335 transitions. Word has length 243 [2020-11-07 00:48:24,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:24,975 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 335 transitions. [2020-11-07 00:48:24,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-11-07 00:48:24,975 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 335 transitions. [2020-11-07 00:48:24,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-11-07 00:48:24,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:24,979 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] [2020-11-07 00:48:24,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:48:24,979 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:24,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:24,980 INFO L82 PathProgramCache]: Analyzing trace with hash -863754643, now seen corresponding path program 1 times [2020-11-07 00:48:24,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:24,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765827704] [2020-11-07 00:48:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:24,986 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:25,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:25,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:25,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:25,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:25,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,388 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-07 00:48:26,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 00:48:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:26,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-11-07 00:48:27,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765827704] [2020-11-07 00:48:27,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:27,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-07 00:48:27,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070801708] [2020-11-07 00:48:27,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 00:48:27,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:27,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 00:48:27,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:48:27,257 INFO L87 Difference]: Start difference. First operand 301 states and 335 transitions. Second operand 23 states. [2020-11-07 00:48:27,787 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-07 00:48:28,164 WARN L194 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-07 00:48:29,433 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-11-07 00:48:30,162 WARN L194 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 00:48:30,929 WARN L194 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-11-07 00:48:31,538 WARN L194 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 00:48:35,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:35,789 INFO L93 Difference]: Finished difference Result 600 states and 669 transitions. [2020-11-07 00:48:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 00:48:35,790 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 245 [2020-11-07 00:48:35,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:35,794 INFO L225 Difference]: With dead ends: 600 [2020-11-07 00:48:35,794 INFO L226 Difference]: Without dead ends: 321 [2020-11-07 00:48:35,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 00:48:35,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-07 00:48:35,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 301. [2020-11-07 00:48:35,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 00:48:35,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 333 transitions. [2020-11-07 00:48:35,845 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 333 transitions. Word has length 245 [2020-11-07 00:48:35,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:35,847 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 333 transitions. [2020-11-07 00:48:35,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 00:48:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 333 transitions. [2020-11-07 00:48:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-07 00:48:35,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:35,852 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] [2020-11-07 00:48:35,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:48:35,852 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:35,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:35,853 INFO L82 PathProgramCache]: Analyzing trace with hash 791701158, now seen corresponding path program 1 times [2020-11-07 00:48:35,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:35,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687037107] [2020-11-07 00:48:35,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:35,859 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:36,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:48:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:37,720 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-11-07 00:48:37,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687037107] [2020-11-07 00:48:37,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:37,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-11-07 00:48:37,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536576188] [2020-11-07 00:48:37,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 00:48:37,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:37,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 00:48:37,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-11-07 00:48:37,723 INFO L87 Difference]: Start difference. First operand 301 states and 333 transitions. Second operand 24 states. [2020-11-07 00:48:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:42,761 INFO L93 Difference]: Finished difference Result 535 states and 600 transitions. [2020-11-07 00:48:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-07 00:48:42,761 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 244 [2020-11-07 00:48:42,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:42,766 INFO L225 Difference]: With dead ends: 535 [2020-11-07 00:48:42,766 INFO L226 Difference]: Without dead ends: 423 [2020-11-07 00:48:42,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2020-11-07 00:48:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-11-07 00:48:42,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 338. [2020-11-07 00:48:42,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 00:48:42,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 375 transitions. [2020-11-07 00:48:42,815 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 375 transitions. Word has length 244 [2020-11-07 00:48:42,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:42,816 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 375 transitions. [2020-11-07 00:48:42,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 00:48:42,816 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 375 transitions. [2020-11-07 00:48:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-11-07 00:48:42,820 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:42,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:48:42,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:48:42,821 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:42,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1636205355, now seen corresponding path program 1 times [2020-11-07 00:48:42,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:42,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889114283] [2020-11-07 00:48:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:42,827 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:42,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:43,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 00:48:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 00:48:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 00:48:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-11-07 00:48:44,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889114283] [2020-11-07 00:48:44,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:48:44,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-11-07 00:48:44,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359928030] [2020-11-07 00:48:44,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 00:48:44,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:48:44,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 00:48:44,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:48:44,574 INFO L87 Difference]: Start difference. First operand 338 states and 375 transitions. Second operand 17 states. [2020-11-07 00:48:45,780 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-11-07 00:48:46,071 WARN L194 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 00:48:46,419 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-11-07 00:48:46,686 WARN L194 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 00:48:49,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:48:49,679 INFO L93 Difference]: Finished difference Result 676 states and 760 transitions. [2020-11-07 00:48:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 00:48:49,680 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 250 [2020-11-07 00:48:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:48:49,684 INFO L225 Difference]: With dead ends: 676 [2020-11-07 00:48:49,684 INFO L226 Difference]: Without dead ends: 358 [2020-11-07 00:48:49,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2020-11-07 00:48:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-07 00:48:49,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 338. [2020-11-07 00:48:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 00:48:49,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 373 transitions. [2020-11-07 00:48:49,736 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 373 transitions. Word has length 250 [2020-11-07 00:48:49,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:48:49,736 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 373 transitions. [2020-11-07 00:48:49,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 00:48:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 373 transitions. [2020-11-07 00:48:49,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-07 00:48:49,740 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:48:49,740 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] [2020-11-07 00:48:49,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 00:48:49,741 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:48:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:48:49,741 INFO L82 PathProgramCache]: Analyzing trace with hash 554881775, now seen corresponding path program 1 times [2020-11-07 00:48:49,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:48:49,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031832483] [2020-11-07 00:48:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:48:49,747 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:48:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:50,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 00:48:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:50,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:48:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 00:48:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 00:48:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:48:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:51,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:48:51,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:52,301 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-11-07 00:48:52,738 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-07 00:48:53,057 WARN L194 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-11-07 00:48:53,364 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2020-11-07 00:48:53,628 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-11-07 00:48:53,833 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2020-11-07 00:48:54,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 00:48:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:54,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 00:48:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:48:55,659 WARN L194 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-11-07 00:48:55,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:48:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:49:49,273 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 189 DAG size of output: 49