/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 05:48:16,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 05:48:16,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 05:48:16,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 05:48:16,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 05:48:16,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 05:48:16,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 05:48:16,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 05:48:16,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 05:48:16,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 05:48:16,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 05:48:16,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 05:48:16,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 05:48:16,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 05:48:16,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 05:48:16,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 05:48:16,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 05:48:16,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 05:48:16,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 05:48:16,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 05:48:16,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 05:48:16,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 05:48:16,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 05:48:16,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 05:48:16,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 05:48:16,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 05:48:16,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 05:48:16,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 05:48:16,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 05:48:16,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 05:48:16,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 05:48:16,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 05:48:16,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 05:48:16,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 05:48:16,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 05:48:16,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 05:48:16,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 05:48:16,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 05:48:16,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 05:48:16,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 05:48:16,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 05:48:16,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 05:48:16,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 05:48:16,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 05:48:16,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 05:48:16,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 05:48:16,129 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 05:48:16,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 05:48:16,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 05:48:16,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 05:48:16,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 05:48:16,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 05:48:16,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 05:48:16,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 05:48:16,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 05:48:16,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 05:48:16,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 05:48:16,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 05:48:16,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 05:48:16,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 05:48:16,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 05:48:16,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 05:48:16,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 05:48:16,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:48:16,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 05:48:16,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 05:48:16,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 05:48:16,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 05:48:16,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 05:48:16,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 05:48:16,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 05:48:16,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 05:48:16,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 05:48:16,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 05:48:16,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 05:48:16,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 05:48:16,460 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 05:48:16,460 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-07-20 05:48:16,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a571cbddf/f79d9006855e413ab90d2591e7f0be7c/FLAG40dfb7650 [2020-07-20 05:48:17,109 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 05:48:17,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-07-20 05:48:17,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a571cbddf/f79d9006855e413ab90d2591e7f0be7c/FLAG40dfb7650 [2020-07-20 05:48:17,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a571cbddf/f79d9006855e413ab90d2591e7f0be7c [2020-07-20 05:48:17,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 05:48:17,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 05:48:17,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 05:48:17,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 05:48:17,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 05:48:17,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:48:17" (1/1) ... [2020-07-20 05:48:17,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4628ffb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:17, skipping insertion in model container [2020-07-20 05:48:17,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:48:17" (1/1) ... [2020-07-20 05:48:17,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 05:48:17,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 05:48:17,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:48:17,967 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 05:48:18,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:48:18,096 INFO L208 MainTranslator]: Completed translation [2020-07-20 05:48:18,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18 WrapperNode [2020-07-20 05:48:18,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 05:48:18,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 05:48:18,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 05:48:18,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 05:48:18,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... [2020-07-20 05:48:18,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... [2020-07-20 05:48:18,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... [2020-07-20 05:48:18,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... [2020-07-20 05:48:18,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... [2020-07-20 05:48:18,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... [2020-07-20 05:48:18,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... [2020-07-20 05:48:18,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 05:48:18,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 05:48:18,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 05:48:18,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 05:48:18,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:48:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 05:48:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 05:48:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-20 05:48:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-20 05:48:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 05:48:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-07-20 05:48:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-07-20 05:48:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-07-20 05:48:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-07-20 05:48:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-07-20 05:48:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-07-20 05:48:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-07-20 05:48:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-07-20 05:48:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-07-20 05:48:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-07-20 05:48:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-07-20 05:48:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-07-20 05:48:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-07-20 05:48:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-07-20 05:48:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-07-20 05:48:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 05:48:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-20 05:48:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-20 05:48:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-20 05:48:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-20 05:48:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-20 05:48:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-20 05:48:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-20 05:48:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-20 05:48:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-20 05:48:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-20 05:48:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-20 05:48:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-20 05:48:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-20 05:48:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-20 05:48:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-20 05:48:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-20 05:48:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-20 05:48:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-20 05:48:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-20 05:48:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-20 05:48:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-20 05:48:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-20 05:48:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-20 05:48:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-20 05:48:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-20 05:48:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-20 05:48:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-20 05:48:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-20 05:48:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-20 05:48:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-20 05:48:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-20 05:48:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-20 05:48:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-20 05:48:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-20 05:48:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-20 05:48:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-20 05:48:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-20 05:48:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-20 05:48:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-20 05:48:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-20 05:48:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-20 05:48:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-20 05:48:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-20 05:48:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-20 05:48:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-20 05:48:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 05:48:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-20 05:48:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-20 05:48:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 05:48:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-20 05:48:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-20 05:48:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-20 05:48:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-20 05:48:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 05:48:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-20 05:48:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-20 05:48:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 05:48:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-20 05:48:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-20 05:48:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-20 05:48:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-20 05:48:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-20 05:48:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-20 05:48:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-20 05:48:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-20 05:48:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-20 05:48:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-20 05:48:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-20 05:48:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-20 05:48:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-20 05:48:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-20 05:48:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-20 05:48:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-20 05:48:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-20 05:48:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-20 05:48:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-20 05:48:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-20 05:48:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-20 05:48:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-20 05:48:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-20 05:48:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-20 05:48:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-20 05:48:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-20 05:48:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-20 05:48:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-20 05:48:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-20 05:48:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-20 05:48:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-20 05:48:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-20 05:48:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-20 05:48:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-20 05:48:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-20 05:48:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-20 05:48:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-20 05:48:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-20 05:48:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 05:48:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 05:48:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 05:48:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-07-20 05:48:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 05:48:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-07-20 05:48:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-07-20 05:48:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 05:48:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-07-20 05:48:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-07-20 05:48:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-07-20 05:48:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 05:48:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-07-20 05:48:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-07-20 05:48:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-07-20 05:48:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-07-20 05:48:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-07-20 05:48:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-07-20 05:48:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-07-20 05:48:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-07-20 05:48:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 05:48:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 05:48:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 05:48:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-07-20 05:48:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 05:48:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 05:48:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 05:48:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 05:48:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 05:48:18,978 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 05:48:18,979 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-20 05:48:18,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:48:18 BoogieIcfgContainer [2020-07-20 05:48:18,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 05:48:18,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 05:48:18,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 05:48:18,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 05:48:18,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:48:17" (1/3) ... [2020-07-20 05:48:18,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5f6617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:48:18, skipping insertion in model container [2020-07-20 05:48:18,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:48:18" (2/3) ... [2020-07-20 05:48:18,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5f6617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:48:18, skipping insertion in model container [2020-07-20 05:48:18,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:48:18" (3/3) ... [2020-07-20 05:48:18,997 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-07-20 05:48:19,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 05:48:19,017 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 05:48:19,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 05:48:19,049 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 05:48:19,049 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 05:48:19,049 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 05:48:19,050 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 05:48:19,050 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 05:48:19,050 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 05:48:19,050 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 05:48:19,050 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 05:48:19,071 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-07-20 05:48:19,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 05:48:19,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:48:19,080 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:48:19,081 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:48:19,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:48:19,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1154845074, now seen corresponding path program 1 times [2020-07-20 05:48:19,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:48:19,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121981334] [2020-07-20 05:48:19,099 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3f9a7657 [2020-07-20 05:48:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 05:48:19,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121981334] [2020-07-20 05:48:19,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 05:48:19,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 05:48:19,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990024648] [2020-07-20 05:48:19,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 05:48:19,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:48:19,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 05:48:19,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 05:48:19,484 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2020-07-20 05:48:19,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:48:19,724 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2020-07-20 05:48:19,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 05:48:19,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-07-20 05:48:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:48:19,736 INFO L225 Difference]: With dead ends: 108 [2020-07-20 05:48:19,736 INFO L226 Difference]: Without dead ends: 53 [2020-07-20 05:48:19,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 05:48:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-07-20 05:48:19,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2020-07-20 05:48:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-20 05:48:19,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2020-07-20 05:48:19,788 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 28 [2020-07-20 05:48:19,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:48:19,789 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-07-20 05:48:19,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 05:48:19,789 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-07-20 05:48:19,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 05:48:19,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:48:19,792 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:48:19,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 05:48:19,792 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:48:19,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:48:19,793 INFO L82 PathProgramCache]: Analyzing trace with hash 221547774, now seen corresponding path program 1 times [2020-07-20 05:48:19,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:48:19,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193728633] [2020-07-20 05:48:19,794 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3f9a7657 [2020-07-20 05:48:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:20,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 05:48:20,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193728633] [2020-07-20 05:48:20,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148491469] [2020-07-20 05:48:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a77f271 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:48:20,212 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a77f271 issued 4 check-sat command(s) [2020-07-20 05:48:20,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:48:20,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 05:48:20,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:48:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:48:20,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:48:20,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2020-07-20 05:48:20,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949428509] [2020-07-20 05:48:20,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 05:48:20,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:48:20,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 05:48:20,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:48:20,277 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 4 states. [2020-07-20 05:48:20,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:48:20,307 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-07-20 05:48:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 05:48:20,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-07-20 05:48:20,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:48:20,312 INFO L225 Difference]: With dead ends: 64 [2020-07-20 05:48:20,312 INFO L226 Difference]: Without dead ends: 50 [2020-07-20 05:48:20,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:48:20,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-20 05:48:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-07-20 05:48:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-20 05:48:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-07-20 05:48:20,329 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2020-07-20 05:48:20,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:48:20,329 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-07-20 05:48:20,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 05:48:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-07-20 05:48:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 05:48:20,331 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:48:20,331 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-20 05:48:20,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 05:48:20,546 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:48:20,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:48:20,548 INFO L82 PathProgramCache]: Analyzing trace with hash -2088028185, now seen corresponding path program 1 times [2020-07-20 05:48:20,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:48:20,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257208591] [2020-07-20 05:48:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3f9a7657 [2020-07-20 05:48:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-20 05:48:20,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257208591] [2020-07-20 05:48:20,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 05:48:20,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 05:48:20,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918604883] [2020-07-20 05:48:20,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 05:48:20,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:48:20,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 05:48:20,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 05:48:20,716 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 6 states. [2020-07-20 05:48:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:48:21,115 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2020-07-20 05:48:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 05:48:21,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-20 05:48:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:48:21,117 INFO L225 Difference]: With dead ends: 63 [2020-07-20 05:48:21,117 INFO L226 Difference]: Without dead ends: 57 [2020-07-20 05:48:21,118 INFO L675 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 [2020-07-20 05:48:21,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-20 05:48:21,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-07-20 05:48:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-20 05:48:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2020-07-20 05:48:21,129 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 28 [2020-07-20 05:48:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:48:21,130 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2020-07-20 05:48:21,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 05:48:21,130 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2020-07-20 05:48:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 05:48:21,131 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:48:21,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 05:48:21,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 05:48:21,132 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:48:21,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:48:21,133 INFO L82 PathProgramCache]: Analyzing trace with hash -513424880, now seen corresponding path program 1 times [2020-07-20 05:48:21,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:48:21,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097874384] [2020-07-20 05:48:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3f9a7657 [2020-07-20 05:48:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:48:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 05:48:21,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097874384] [2020-07-20 05:48:21,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107083964] [2020-07-20 05:48:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7e657ab No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:48:21,568 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7e657ab issued 3 check-sat command(s) [2020-07-20 05:48:21,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 05:48:21,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-20 05:48:21,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 05:48:21,634 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-07-20 05:48:21,635 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 05:48:21,647 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 05:48:21,652 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-07-20 05:48:21,653 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 05:48:21,660 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 05:48:21,661 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 05:48:21,662 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:10 [2020-07-20 05:48:21,827 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 05:48:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 05:48:21,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 05:48:21,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2020-07-20 05:48:21,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934932353] [2020-07-20 05:48:21,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 05:48:21,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:48:21,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 05:48:21,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-07-20 05:48:21,838 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 9 states. [2020-07-20 05:48:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:48:22,531 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2020-07-20 05:48:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-20 05:48:22,534 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-07-20 05:48:22,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:48:22,536 INFO L225 Difference]: With dead ends: 95 [2020-07-20 05:48:22,536 INFO L226 Difference]: Without dead ends: 73 [2020-07-20 05:48:22,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2020-07-20 05:48:22,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-20 05:48:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 52. [2020-07-20 05:48:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-07-20 05:48:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-07-20 05:48:22,548 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 28 [2020-07-20 05:48:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:48:22,549 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-07-20 05:48:22,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 05:48:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-07-20 05:48:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-20 05:48:22,551 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:48:22,551 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-20 05:48:22,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 05:48:22,765 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:48:22,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:48:22,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1823590536, now seen corresponding path program 1 times [2020-07-20 05:48:22,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:48:22,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526012809] [2020-07-20 05:48:22,767 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3f9a7657 [2020-07-20 05:48:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 05:48:22,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 05:48:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 05:48:22,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 05:48:22,968 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 05:48:22,968 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 05:48:22,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 05:48:23,026 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-07-20 05:48:23,030 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-07-20 05:48:23,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:48:23 BoogieIcfgContainer [2020-07-20 05:48:23,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 05:48:23,080 INFO L168 Benchmark]: Toolchain (without parser) took 5642.52 ms. Allocated memory was 137.9 MB in the beginning and 250.6 MB in the end (delta: 112.7 MB). Free memory was 100.5 MB in the beginning and 135.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 78.2 MB. Max. memory is 7.1 GB. [2020-07-20 05:48:23,081 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 05:48:23,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.56 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.1 MB in the beginning and 164.0 MB in the end (delta: -63.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-20 05:48:23,089 INFO L168 Benchmark]: Boogie Preprocessor took 100.23 ms. Allocated memory is still 202.4 MB. Free memory was 164.0 MB in the beginning and 161.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-07-20 05:48:23,091 INFO L168 Benchmark]: RCFGBuilder took 778.90 ms. Allocated memory is still 202.4 MB. Free memory was 161.0 MB in the beginning and 103.8 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2020-07-20 05:48:23,092 INFO L168 Benchmark]: TraceAbstraction took 4088.67 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 102.8 MB in the beginning and 135.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-07-20 05:48:23,103 INFO L336 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 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.56 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.1 MB in the beginning and 164.0 MB in the end (delta: -63.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.23 ms. Allocated memory is still 202.4 MB. Free memory was 164.0 MB in the beginning and 161.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 778.90 ms. Allocated memory is still 202.4 MB. Free memory was 161.0 MB in the beginning and 103.8 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4088.67 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 102.8 MB in the beginning and 135.0 MB in the end (delta: -32.2 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 15 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 656]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L651] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [\old(s1)=null, \old(s1)=null, s1={2:0}] [L660] CALL foo() VAL [s1={2:0}] [L654] int j = __VERIFIER_nondet_int(); [L655] CALL ldv_set_add(j, &s1) VAL [\old(new)=-1, s={2:0}, s1={2:0}] [L622] CALL, EXPR ldv_is_in_set(new, s) VAL [\old(e)=-1, s={2:0}, s1={2:0}] [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=-1, __mptr={2:0}, e=-1, m={2:-4}, s={2:0}, s={2:0}, s1={2:0}] [L641] COND FALSE !(&m->list != (s)) VAL [\old(e)=-1, __mptr={2:0}, e=-1, m={2:-4}, s={2:0}, s={2:0}, s1={2:0}] [L646] return 0; VAL [\old(e)=-1, \result=0, __mptr={2:0}, e=-1, m={2:-4}, s={2:0}, s={2:0}, s1={2:0}] [L622] RET, EXPR ldv_is_in_set(new, s) VAL [\old(new)=-1, ldv_is_in_set(new, s)=0, new=-1, s={2:0}, s={2:0}, s1={2:0}] [L622] COND TRUE !ldv_is_in_set(new, s) [L623] struct ldv_list_element *le; VAL [\old(new)=-1, new=-1, s={2:0}, s={2:0}, s1={2:0}] [L624] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(size)=12, s1={2:0}] [L565] void *ptr = malloc(size); VAL [\old(size)=12, malloc(size)={-2:0}, ptr={-2:0}, s1={2:0}, size=12] [L566] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, s1={2:0}] [L554] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s1={2:0}] [L566] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=12, malloc(size)={-2:0}, ptr={-2:0}, s1={2:0}, size=12] [L567] return ptr; VAL [\old(size)=12, \result={-2:0}, malloc(size)={-2:0}, ptr={-2:0}, s1={2:0}, size=12] [L624] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(new)=-1, ldv_successful_malloc(sizeof(struct ldv_list_element))={-2:0}, new=-1, s={2:0}, s={2:0}, s1={2:0}] [L624] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L625] le->e = new VAL [\old(new)=-1, le={-2:0}, new=-1, s={2:0}, s={2:0}, s1={2:0}] [L626] CALL ldv_list_add(&le->list, s) VAL [head={2:0}, new={-2:4}, s1={2:0}] [L594] EXPR head->next VAL [head={2:0}, head={2:0}, head->next={2:0}, new={-2:4}, new={-2:4}, s1={2:0}] [L594] CALL __ldv_list_add(new, head, head->next) VAL [new={-2:4}, next={2:0}, prev={2:0}, s1={2:0}] [L582] next->prev = new [L583] new->next = next [L584] new->prev = prev [L585] prev->next = new VAL [new={-2:4}, new={-2:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}, s1={2:0}] [L594] RET __ldv_list_add(new, head, head->next) VAL [head={2:0}, head={2:0}, head->next={2:0}, new={-2:4}, new={-2:4}, s1={2:0}] [L626] RET ldv_list_add(&le->list, s) VAL [\old(new)=-1, le={-2:0}, new=-1, s={2:0}, s={2:0}, s1={2:0}] [L655] RET ldv_set_add(j, &s1) VAL [j=-1, s1={2:0}] [L656] CALL ldv_is_in_set(j, &s1) VAL [\old(e)=-1, s={2:0}, s1={2:0}] [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=-1, __mptr={-2:4}, e=-1, m={-2:0}, s={2:0}, s={2:0}, s1={2:0}] [L641] COND TRUE &m->list != (s) [L642] EXPR m->e VAL [\old(e)=-1, __mptr={-2:4}, e=-1, m={-2:0}, m->e=-1, s={2:0}, s={2:0}, s1={2:0}] [L642] COND TRUE m->e == e [L643] return 1; VAL [\old(e)=-1, \result=1, __mptr={-2:4}, e=-1, m={-2:0}, s={2:0}, s={2:0}, s1={2:0}] [L656] RET ldv_is_in_set(j, &s1) VAL [j=-1, ldv_is_in_set(j, &s1)=1, s1={2:0}] [L656] COND TRUE ldv_is_in_set(j, &s1) [L656] __VERIFIER_error() VAL [j=-1, s1={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 184 SDtfs, 208 SDslu, 210 SDs, 0 SdLazy, 359 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 216 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 24921 SizeOfPredicates, 16 NumberOfNonLiveVariables, 323 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 23/29 InterpolantCoveringCapability, 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...