/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:15:56,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:15:56,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:15:56,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:15:56,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:15:56,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:15:56,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:15:56,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:15:56,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:15:56,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:15:56,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:15:56,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:15:56,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:15:56,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:15:56,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:15:56,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:15:56,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:15:56,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:15:56,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:15:56,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:15:56,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:15:56,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:15:56,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:15:56,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:15:56,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 11:15:56,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 11:15:56,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 11:15:56,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 11:15:56,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 11:15:56,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 11:15:56,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:15:56,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:15:56,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:15:56,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:15:56,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:15:56,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:15:56,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:15:56,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:15:56,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:15:56,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:15:56,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:15:56,317 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 [2020-07-07 11:15:56,349 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:15:56,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:15:56,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:15:56,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:15:56,353 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:15:56,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:15:56,353 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:15:56,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:15:56,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:15:56,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:15:56,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:15:56,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:15:56,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:15:56,356 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:15:56,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:15:56,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:15:56,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:15:56,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:15:56,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:15:56,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:15:56,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:15:56,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:15:56,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:15:56,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:15:56,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:15:56,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:15:56,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:15:56,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:15:56,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:15:56,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:15:56,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:15:56,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:15:56,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:15:56,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:15:56,703 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:15:56,703 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-07-07 11:15:56,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b5668f2/294f242715094e7794c7f1e34dfbe5b6/FLAG83167c6f2 [2020-07-07 11:15:57,326 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:15:57,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-07-07 11:15:57,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b5668f2/294f242715094e7794c7f1e34dfbe5b6/FLAG83167c6f2 [2020-07-07 11:15:57,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b5668f2/294f242715094e7794c7f1e34dfbe5b6 [2020-07-07 11:15:57,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:15:57,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:15:57,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:15:57,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:15:57,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:15:57,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:15:57" (1/1) ... [2020-07-07 11:15:57,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a5325a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:57, skipping insertion in model container [2020-07-07 11:15:57,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:15:57" (1/1) ... [2020-07-07 11:15:57,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:15:57,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:15:58,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:15:58,234 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:15:58,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:15:58,395 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:15:58,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58 WrapperNode [2020-07-07 11:15:58,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:15:58,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:15:58,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:15:58,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:15:58,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:15:58,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:15:58,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:15:58,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:15:58,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (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 [2020-07-07 11:15:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:15:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:15:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-07-07 11:15:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-07 11:15:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-07 11:15:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-07-07 11:15:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-07-07 11:15:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-07-07 11:15:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-07-07 11:15:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-07-07 11:15:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-07-07 11:15:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-07-07 11:15:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-07-07 11:15:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-07-07 11:15:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-07-07 11:15:58,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-07-07 11:15:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-07-07 11:15:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-07-07 11:15:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-07-07 11:15:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-07-07 11:15:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-07-07 11:15:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:15:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:15:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-07 11:15:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-07 11:15:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-07 11:15:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-07 11:15:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-07 11:15:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-07 11:15:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-07 11:15:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-07 11:15:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-07 11:15:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-07 11:15:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-07 11:15:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-07 11:15:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-07 11:15:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-07 11:15:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-07 11:15:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-07 11:15:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-07 11:15:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-07 11:15:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-07 11:15:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-07 11:15:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-07 11:15:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-07 11:15:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-07 11:15:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-07 11:15:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-07 11:15:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-07 11:15:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-07 11:15:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-07 11:15:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-07 11:15:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-07 11:15:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-07 11:15:58,572 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-07 11:15:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-07 11:15:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-07 11:15:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-07 11:15:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-07 11:15:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-07 11:15:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:15:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-07 11:15:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-07 11:15:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 11:15:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-07 11:15:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-07 11:15:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-07 11:15:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-07 11:15:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-07 11:15:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-07 11:15:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-07 11:15:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-07 11:15:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-07 11:15:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-07 11:15:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-07 11:15:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-07 11:15:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-07 11:15:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-07 11:15:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-07 11:15:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-07 11:15:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-07 11:15:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-07 11:15:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-07 11:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-07 11:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-07 11:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-07 11:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-07 11:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-07 11:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-07 11:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-07-07 11:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-07-07 11:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 11:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-07-07 11:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-07-07 11:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 11:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-07-07 11:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-07-07 11:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-07 11:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-07-07 11:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-07-07 11:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-07-07 11:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-07-07 11:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-07-07 11:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-07-07 11:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-07-07 11:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-07-07 11:15:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-07-07 11:15:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-07-07 11:15:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-07-07 11:15:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:15:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:15:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:15:59,476 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:15:59,477 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-07-07 11:15:59,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:15:59 BoogieIcfgContainer [2020-07-07 11:15:59,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:15:59,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:15:59,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:15:59,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:15:59,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:15:57" (1/3) ... [2020-07-07 11:15:59,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7580c7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:15:59, skipping insertion in model container [2020-07-07 11:15:59,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58" (2/3) ... [2020-07-07 11:15:59,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7580c7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:15:59, skipping insertion in model container [2020-07-07 11:15:59,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:15:59" (3/3) ... [2020-07-07 11:15:59,491 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-07-07 11:15:59,501 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:15:59,509 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:15:59,523 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:15:59,545 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:15:59,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:15:59,546 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:15:59,546 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:15:59,546 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:15:59,546 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:15:59,546 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:15:59,546 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:15:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-07 11:15:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-07 11:15:59,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:15:59,585 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:15:59,586 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:15:59,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:15:59,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2020-07-07 11:15:59,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:15:59,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890935745] [2020-07-07 11:15:59,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:15:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:15:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-07 11:16:00,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890935745] [2020-07-07 11:16:00,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:16:00,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:16:00,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569744158] [2020-07-07 11:16:00,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:16:00,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:00,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:16:00,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:16:00,164 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-07-07 11:16:00,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:00,615 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2020-07-07 11:16:00,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:16:00,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-07-07 11:16:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:00,631 INFO L225 Difference]: With dead ends: 343 [2020-07-07 11:16:00,632 INFO L226 Difference]: Without dead ends: 166 [2020-07-07 11:16:00,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:16:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-07-07 11:16:00,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2020-07-07 11:16:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-07-07 11:16:00,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2020-07-07 11:16:00,744 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2020-07-07 11:16:00,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:00,745 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2020-07-07 11:16:00,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:16:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2020-07-07 11:16:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-07 11:16:00,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:00,749 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:16:00,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:16:00,750 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:00,751 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2020-07-07 11:16:00,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:00,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792057602] [2020-07-07 11:16:00,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,246 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 11:16:01,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792057602] [2020-07-07 11:16:01,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560082601] [2020-07-07 11:16:01,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-07 11:16:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,496 INFO L264 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 11:16:01,505 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:16:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 11:16:01,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:16:01,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 13 [2020-07-07 11:16:01,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354036176] [2020-07-07 11:16:01,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 11:16:01,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:01,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 11:16:01,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:16:01,616 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 13 states. [2020-07-07 11:16:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:02,865 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2020-07-07 11:16:02,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:16:02,867 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-07-07 11:16:02,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:02,873 INFO L225 Difference]: With dead ends: 327 [2020-07-07 11:16:02,873 INFO L226 Difference]: Without dead ends: 179 [2020-07-07 11:16:02,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-07-07 11:16:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-07-07 11:16:02,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2020-07-07 11:16:02,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-07 11:16:02,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2020-07-07 11:16:02,899 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 60 [2020-07-07 11:16:02,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:02,899 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2020-07-07 11:16:02,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 11:16:02,900 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2020-07-07 11:16:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 11:16:02,903 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:02,904 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:16:03,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-07 11:16:03,118 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:03,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:03,118 INFO L82 PathProgramCache]: Analyzing trace with hash 586330229, now seen corresponding path program 1 times [2020-07-07 11:16:03,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:03,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455262784] [2020-07-07 11:16:03,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,803 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-07-07 11:16:04,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455262784] [2020-07-07 11:16:04,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433884603] [2020-07-07 11:16:04,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-07 11:16:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,121 INFO L264 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-07 11:16:05,132 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:16:05,480 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:05,480 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 47 [2020-07-07 11:16:05,481 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:05,508 INFO L624 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2020-07-07 11:16:05,510 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:16:05,511 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:8 [2020-07-07 11:16:05,607 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 16 treesize of output 8 [2020-07-07 11:16:05,608 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:05,610 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:05,610 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:16:05,611 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-07-07 11:16:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2020-07-07 11:16:05,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:16:05,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 33 [2020-07-07 11:16:05,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225088101] [2020-07-07 11:16:05,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-07 11:16:05,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:05,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-07 11:16:05,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=983, Unknown=0, NotChecked=0, Total=1056 [2020-07-07 11:16:05,734 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand 33 states. [2020-07-07 11:16:08,206 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-07-07 11:16:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:10,502 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2020-07-07 11:16:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-07 11:16:10,503 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 154 [2020-07-07 11:16:10,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:10,509 INFO L225 Difference]: With dead ends: 411 [2020-07-07 11:16:10,510 INFO L226 Difference]: Without dead ends: 249 [2020-07-07 11:16:10,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=259, Invalid=2933, Unknown=0, NotChecked=0, Total=3192 [2020-07-07 11:16:10,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-07 11:16:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 205. [2020-07-07 11:16:10,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-07-07 11:16:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 243 transitions. [2020-07-07 11:16:10,578 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 243 transitions. Word has length 154 [2020-07-07 11:16:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:10,584 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 243 transitions. [2020-07-07 11:16:10,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-07 11:16:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 243 transitions. [2020-07-07 11:16:10,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-07 11:16:10,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:10,590 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:16:10,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:16:10,791 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:10,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:10,792 INFO L82 PathProgramCache]: Analyzing trace with hash -477532124, now seen corresponding path program 1 times [2020-07-07 11:16:10,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:10,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054640896] [2020-07-07 11:16:10,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 16 proven. 93 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-07 11:16:12,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054640896] [2020-07-07 11:16:12,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259163235] [2020-07-07 11:16:12,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:16:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,374 INFO L264 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 62 conjunts are in the unsatisfiable core [2020-07-07 11:16:12,381 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:16:12,450 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-07 11:16:12,451 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:12,456 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:12,457 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:16:12,457 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-07-07 11:16:12,472 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 8 treesize of output 4 [2020-07-07 11:16:12,473 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:12,478 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:12,479 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:16:12,479 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2020-07-07 11:16:14,661 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_slave_~ptr~0.offset Int) (alloc_or_die_slave_~ptr~0.base Int)) (and (<= (+ alloc_or_die_slave_~ptr~0.base 1) |c_#StackHeapBarrier|) (= (select (select (store |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base (store (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0) (+ alloc_or_die_slave_~ptr~0.offset 4) 0)) |c_dll_insert_slave_#in~dll.base|) |c_dll_insert_slave_#in~dll.offset|) c_dll_insert_slave_~next~0.base))) is different from true [2020-07-07 11:16:16,673 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_slave_~ptr~0.offset Int) (alloc_or_die_slave_~ptr~0.base Int)) (and (<= (+ alloc_or_die_slave_~ptr~0.base 1) |c_#StackHeapBarrier|) (= (select (select (store |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base (store (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0) (+ alloc_or_die_slave_~ptr~0.offset 4) 0)) |c_dll_insert_slave_#in~dll.base|) |c_dll_insert_slave_#in~dll.offset|) 0))) is different from true [2020-07-07 11:16:18,711 WARN L860 $PredicateComparison]: unable to prove that (exists ((alloc_or_die_slave_~ptr~0.offset Int) (alloc_or_die_slave_~ptr~0.base Int)) (and (<= (+ alloc_or_die_slave_~ptr~0.base 1) |c_#StackHeapBarrier|) (= 0 (select (select (store |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base (store (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0) (+ alloc_or_die_slave_~ptr~0.offset 4) 0)) |c_##fun~$Pointer$~TO~VOID_#in~9.base|) |c_##fun~$Pointer$~TO~VOID_#in~9.offset|)))) is different from true [2020-07-07 11:16:18,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-07 11:16:18,735 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:18,736 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:18,736 INFO L544 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-07 11:16:18,737 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:39, output treesize:1 [2020-07-07 11:16:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 5 refuted. 0 times theorem prover too weak. 61 trivial. 6 not checked. [2020-07-07 11:16:18,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:16:18,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 31 [2020-07-07 11:16:18,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834706906] [2020-07-07 11:16:18,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-07 11:16:18,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:18,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-07 11:16:18,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=682, Unknown=3, NotChecked=162, Total=930 [2020-07-07 11:16:18,782 INFO L87 Difference]: Start difference. First operand 205 states and 243 transitions. Second operand 31 states. [2020-07-07 11:16:23,461 WARN L193 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-07-07 11:16:28,810 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-07 11:16:32,221 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-07-07 11:16:36,348 WARN L193 SmtUtils]: Spent 4.02 s on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-07-07 11:16:40,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:40,280 INFO L93 Difference]: Finished difference Result 414 states and 502 transitions. [2020-07-07 11:16:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 11:16:40,281 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 157 [2020-07-07 11:16:40,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:40,286 INFO L225 Difference]: With dead ends: 414 [2020-07-07 11:16:40,288 INFO L226 Difference]: Without dead ends: 226 [2020-07-07 11:16:40,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=226, Invalid=1852, Unknown=4, NotChecked=270, Total=2352 [2020-07-07 11:16:40,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-07 11:16:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 213. [2020-07-07 11:16:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-07 11:16:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 252 transitions. [2020-07-07 11:16:40,328 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 252 transitions. Word has length 157 [2020-07-07 11:16:40,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:40,329 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 252 transitions. [2020-07-07 11:16:40,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-07 11:16:40,330 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 252 transitions. [2020-07-07 11:16:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-07 11:16:40,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:40,340 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:16:40,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:16:40,556 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:40,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:40,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1709746076, now seen corresponding path program 1 times [2020-07-07 11:16:40,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:40,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515053222] [2020-07-07 11:16:40,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:42,935 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2020-07-07 11:16:43,134 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2020-07-07 11:16:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:17:55,470 WARN L193 SmtUtils]: Spent 20.03 s on a formula simplification. DAG size of input: 728 DAG size of output: 51