/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:26:06,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:26:06,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:26:06,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:26:06,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:26:06,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:26:06,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:26:06,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:26:06,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:26:06,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:26:06,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:26:06,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:26:06,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:26:06,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:26:06,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:26:06,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:26:06,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:26:06,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:26:06,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:26:06,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:26:06,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:26:06,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:26:06,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:26:06,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:26:06,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:26:06,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:26:06,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:26:06,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:26:06,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:26:06,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:26:06,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:26:06,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:26:06,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:26:06,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:26:06,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:26:06,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:26:06,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:26:06,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:26:06,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:26:06,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:26:06,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:26:06,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:26:06,292 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:26:06,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:26:06,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:26:06,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:26:06,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:26:06,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:26:06,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:26:06,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:26:06,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:26:06,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:26:06,297 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:26:06,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:26:06,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:26:06,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:26:06,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:26:06,299 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:26:06,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:26:06,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:26:06,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:26:06,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:26:06,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:26:06,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:26:06,302 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:26:06,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:26:06,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:26:06,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:26:06,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:26:06,760 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:26:06,761 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:26:06,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2021-02-24 04:26:06,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9403f7082/680c90d8e05c46bc9bd8355bc5787b29/FLAG802c8f72c [2021-02-24 04:26:07,665 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:26:07,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2021-02-24 04:26:07,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9403f7082/680c90d8e05c46bc9bd8355bc5787b29/FLAG802c8f72c [2021-02-24 04:26:07,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9403f7082/680c90d8e05c46bc9bd8355bc5787b29 [2021-02-24 04:26:07,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:26:07,917 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:26:07,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:26:07,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:26:07,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:26:07,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:26:07" (1/1) ... [2021-02-24 04:26:07,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b9d6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:07, skipping insertion in model container [2021-02-24 04:26:07,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:26:07" (1/1) ... [2021-02-24 04:26:07,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:26:08,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:26:08,459 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i[25792,25805] [2021-02-24 04:26:08,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:26:08,483 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:26:08,625 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i[25792,25805] [2021-02-24 04:26:08,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:26:08,747 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:26:08,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08 WrapperNode [2021-02-24 04:26:08,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:26:08,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:26:08,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:26:08,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:26:08,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... [2021-02-24 04:26:08,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... [2021-02-24 04:26:08,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... [2021-02-24 04:26:08,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... [2021-02-24 04:26:08,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... [2021-02-24 04:26:08,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... [2021-02-24 04:26:08,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... [2021-02-24 04:26:08,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:26:08,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:26:08,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:26:08,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:26:08,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:26:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:26:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:26:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-24 04:26:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-24 04:26:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:26:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:26:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-02-24 04:26:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2021-02-24 04:26:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-02-24 04:26:08,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-02-24 04:26:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-02-24 04:26:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-02-24 04:26:08,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-02-24 04:26:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-02-24 04:26:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2021-02-24 04:26:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2021-02-24 04:26:08,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2021-02-24 04:26:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2021-02-24 04:26:08,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2021-02-24 04:26:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2021-02-24 04:26:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-02-24 04:26:08,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:26:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-24 04:26:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-24 04:26:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:26:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:26:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:26:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:26:08,995 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:26:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:26:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:26:08,996 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:26:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:26:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:26:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:26:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:26:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:26:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:26:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:26:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:26:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:26:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:26:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:26:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:26:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:26:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:26:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:26:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:26:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:26:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:26:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:26:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:26:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:26:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:26:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:26:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:26:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:26:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:26:09,001 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:26:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:26:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:26:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:26:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:26:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:26:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:26:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:26:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:26:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:26:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:26:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:26:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:26:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:26:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:26:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:26:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:26:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:26:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:26:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:26:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-24 04:26:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:26:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:26:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:26:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:26:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:26:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:26:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:26:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:26:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:26:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:26:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:26:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:26:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:26:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:26:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:26:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:26:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:26:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:26:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:26:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:26:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:26:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:26:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:26:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:26:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:26:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:26:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:26:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:26:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:26:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:26:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:26:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:26:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:26:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:26:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:26:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:26:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:26:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:26:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:26:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:26:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:26:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:26:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:26:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:26:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:26:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:26:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:26:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:26:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:26:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:26:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:26:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:26:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-02-24 04:26:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:26:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2021-02-24 04:26:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-02-24 04:26:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:26:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-02-24 04:26:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-02-24 04:26:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-02-24 04:26:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:26:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-02-24 04:26:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-02-24 04:26:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2021-02-24 04:26:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2021-02-24 04:26:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2021-02-24 04:26:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2021-02-24 04:26:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2021-02-24 04:26:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2021-02-24 04:26:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:26:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:26:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:26:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-02-24 04:26:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:26:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:26:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:26:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-24 04:26:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:26:10,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:26:10,067 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 04:26:10,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:26:10 BoogieIcfgContainer [2021-02-24 04:26:10,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:26:10,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:26:10,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:26:10,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:26:10,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:26:07" (1/3) ... [2021-02-24 04:26:10,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3d17c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:26:10, skipping insertion in model container [2021-02-24 04:26:10,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:26:08" (2/3) ... [2021-02-24 04:26:10,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3d17c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:26:10, skipping insertion in model container [2021-02-24 04:26:10,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:26:10" (3/3) ... [2021-02-24 04:26:10,088 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2021-02-24 04:26:10,097 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:26:10,105 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:26:10,130 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:26:10,173 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:26:10,174 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:26:10,174 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:26:10,174 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:26:10,174 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:26:10,175 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:26:10,175 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:26:10,175 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:26:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2021-02-24 04:26:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-24 04:26:10,222 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:10,224 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 04:26:10,224 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:10,234 INFO L82 PathProgramCache]: Analyzing trace with hash 61055343, now seen corresponding path program 1 times [2021-02-24 04:26:10,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:10,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853417551] [2021-02-24 04:26:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:10,356 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:10,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:10,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-24 04:26:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:10,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:26:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:10,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 04:26:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:10,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:10,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-02-24 04:26:10,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853417551] [2021-02-24 04:26:10,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:10,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:26:10,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647412563] [2021-02-24 04:26:10,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:26:10,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:10,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:26:10,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:26:10,831 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 4 states. [2021-02-24 04:26:11,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:11,216 INFO L93 Difference]: Finished difference Result 185 states and 203 transitions. [2021-02-24 04:26:11,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:26:11,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2021-02-24 04:26:11,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:11,230 INFO L225 Difference]: With dead ends: 185 [2021-02-24 04:26:11,230 INFO L226 Difference]: Without dead ends: 95 [2021-02-24 04:26:11,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:26:11,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-02-24 04:26:11,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2021-02-24 04:26:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-02-24 04:26:11,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2021-02-24 04:26:11,303 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 54 [2021-02-24 04:26:11,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:11,303 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2021-02-24 04:26:11,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:26:11,304 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2021-02-24 04:26:11,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-24 04:26:11,307 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:11,308 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 04:26:11,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:26:11,308 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:11,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:11,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1450871183, now seen corresponding path program 1 times [2021-02-24 04:26:11,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:11,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265636094] [2021-02-24 04:26:11,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:11,316 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:11,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:11,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:11,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:11,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-24 04:26:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:11,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:11,590 WARN L141 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-02-24 04:26:11,591 WARN L147 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size 9 [2021-02-24 04:26:11,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:11,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:26:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:11,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:11,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:11,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-24 04:26:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:11,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:11,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-02-24 04:26:11,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265636094] [2021-02-24 04:26:11,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:11,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:26:11,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508653804] [2021-02-24 04:26:11,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:26:11,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:11,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:26:11,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:26:11,682 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 6 states. [2021-02-24 04:26:12,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:12,326 INFO L93 Difference]: Finished difference Result 128 states and 135 transitions. [2021-02-24 04:26:12,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:26:12,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2021-02-24 04:26:12,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:12,332 INFO L225 Difference]: With dead ends: 128 [2021-02-24 04:26:12,332 INFO L226 Difference]: Without dead ends: 99 [2021-02-24 04:26:12,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:26:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-24 04:26:12,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2021-02-24 04:26:12,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2021-02-24 04:26:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2021-02-24 04:26:12,359 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 54 [2021-02-24 04:26:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:12,360 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2021-02-24 04:26:12,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:26:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2021-02-24 04:26:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-24 04:26:12,362 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:12,363 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 04:26:12,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:26:12,363 INFO L428 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:12,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:12,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1712920373, now seen corresponding path program 1 times [2021-02-24 04:26:12,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:12,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436008543] [2021-02-24 04:26:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:12,370 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:12,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:12,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:12,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:12,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:12,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:12,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-24 04:26:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:12,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:12,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:26:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:12,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:26:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:12,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:12,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:12,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-02-24 04:26:12,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436008543] [2021-02-24 04:26:12,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:12,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:26:12,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839902993] [2021-02-24 04:26:12,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:26:12,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:12,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:26:12,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:26:12,638 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 6 states. [2021-02-24 04:26:13,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:13,107 INFO L93 Difference]: Finished difference Result 106 states and 110 transitions. [2021-02-24 04:26:13,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 04:26:13,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2021-02-24 04:26:13,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:13,110 INFO L225 Difference]: With dead ends: 106 [2021-02-24 04:26:13,111 INFO L226 Difference]: Without dead ends: 99 [2021-02-24 04:26:13,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:26:13,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-24 04:26:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 91. [2021-02-24 04:26:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2021-02-24 04:26:13,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 94 transitions. [2021-02-24 04:26:13,139 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 94 transitions. Word has length 57 [2021-02-24 04:26:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:13,140 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 94 transitions. [2021-02-24 04:26:13,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:26:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 94 transitions. [2021-02-24 04:26:13,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-24 04:26:13,143 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:13,143 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 04:26:13,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:26:13,144 INFO L428 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:13,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:13,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2043146959, now seen corresponding path program 1 times [2021-02-24 04:26:13,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:13,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416308646] [2021-02-24 04:26:13,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:13,150 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:13,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:26:13,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:26:13,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:26:13,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:13,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:13,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:13,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:26:13,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:26:13,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-24 04:26:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:13,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:13,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:26:13,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:26:13,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-24 04:26:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:13,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:13,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:13,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:26:13,449 WARN L141 QuantifierPusher]: treesize reduction 11, result has 69.4 percent of original size [2021-02-24 04:26:13,451 WARN L147 QuantifierPusher]: treesize reduction 11, result has 69.4 percent of original size 25 [2021-02-24 04:26:13,477 WARN L141 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size [2021-02-24 04:26:13,478 WARN L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-02-24 04:26:13,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:26:13,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:26:13,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 04:26:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:13,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:13,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-24 04:26:13,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416308646] [2021-02-24 04:26:13,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:13,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-24 04:26:13,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409628249] [2021-02-24 04:26:13,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-24 04:26:13,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:13,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-24 04:26:13,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:26:13,616 INFO L87 Difference]: Start difference. First operand 91 states and 94 transitions. Second operand 15 states. [2021-02-24 04:26:14,618 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2021-02-24 04:26:16,025 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2021-02-24 04:26:16,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:16,283 INFO L93 Difference]: Finished difference Result 184 states and 192 transitions. [2021-02-24 04:26:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-24 04:26:16,283 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 60 [2021-02-24 04:26:16,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:16,285 INFO L225 Difference]: With dead ends: 184 [2021-02-24 04:26:16,285 INFO L226 Difference]: Without dead ends: 108 [2021-02-24 04:26:16,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=376, Invalid=1184, Unknown=0, NotChecked=0, Total=1560 [2021-02-24 04:26:16,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-24 04:26:16,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 96. [2021-02-24 04:26:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-02-24 04:26:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-02-24 04:26:16,314 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 60 [2021-02-24 04:26:16,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:16,315 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-02-24 04:26:16,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-24 04:26:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-02-24 04:26:16,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-02-24 04:26:16,316 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:16,317 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2021-02-24 04:26:16,317 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:26:16,317 INFO L428 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:16,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:16,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1993613588, now seen corresponding path program 1 times [2021-02-24 04:26:16,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:16,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508423643] [2021-02-24 04:26:16,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:16,324 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:26:16,367 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:26:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:26:16,404 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:26:16,460 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:26:16,461 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:26:16,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:26:16,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:26:16 BoogieIcfgContainer [2021-02-24 04:26:16,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:26:16,493 INFO L168 Benchmark]: Toolchain (without parser) took 8589.30 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 126.1 MB in the beginning and 101.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 92.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:16,494 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.3 MB in the end (delta: 435.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:26:16,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.72 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 129.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:16,495 INFO L168 Benchmark]: Boogie Preprocessor took 92.33 ms. Allocated memory is still 151.0 MB. Free memory was 129.4 MB in the beginning and 126.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:16,496 INFO L168 Benchmark]: RCFGBuilder took 1228.66 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 64.9 MB in the end (delta: 61.3 MB). Peak memory consumption was 60.8 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:16,497 INFO L168 Benchmark]: TraceAbstraction took 6416.01 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 63.8 MB in the beginning and 101.8 MB in the end (delta: -37.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:16,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.3 MB in the end (delta: 435.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 828.72 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 129.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.33 ms. Allocated memory is still 151.0 MB. Free memory was 129.4 MB in the beginning and 126.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1228.66 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 64.9 MB in the end (delta: 61.3 MB). Peak memory consumption was 60.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6416.01 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 63.8 MB in the beginning and 101.8 MB in the end (delta: -37.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 667]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; [L671] CALL foo() [L665] int j = __VERIFIER_nondet_int(); [L666] CALL ldv_set_add(j, &s1) [L633] CALL, EXPR ldv_is_in_set(new, s) [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L652] COND FALSE !(&m->list != (s)) [L657] return 0; [L633] RET, EXPR ldv_is_in_set(new, s) [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; [L635] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L635] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new [L637] CALL ldv_list_add(&le->list, s) [L605] EXPR head->next [L605] CALL __ldv_list_add(new, head, head->next) [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new [L605] RET __ldv_list_add(new, head, head->next) [L637] RET ldv_list_add(&le->list, s) [L666] RET ldv_set_add(j, &s1) [L667] CALL ldv_is_in_set(j, &s1) [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L652] COND TRUE &m->list != (s) [L653] EXPR m->e [L653] COND TRUE m->e == e [L654] return 1; [L667] RET ldv_is_in_set(j, &s1) [L667] COND TRUE ldv_is_in_set(j, &s1) [L667] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 191 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.2s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 904 SDslu, 243 SDs, 0 SdLazy, 1055 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...