/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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:15:57,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:15:57,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:15:57,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:15:57,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:15:57,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:15:57,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:15:57,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:15:57,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:15:57,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:15:57,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:15:57,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:15:57,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:15:57,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:15:57,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:15:57,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:15:57,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:15:57,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:15:57,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:15:57,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:15:57,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:15:57,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:15:57,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:15:57,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:15:57,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 11:15:57,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 11:15:57,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 11:15:57,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 11:15:57,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 11:15:57,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 11:15:57,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:15:57,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:15:57,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:15:57,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:15:57,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:15:57,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:15:57,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:15:57,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:15:57,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:15:57,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:15:57,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:15:57,428 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 11:15:57,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:15:57,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:15:57,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:15:57,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:15:57,444 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:15:57,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:15:57,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:15:57,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:15:57,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:15:57,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:15:57,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:15:57,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:15:57,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:15:57,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:15:57,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:15:57,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:15:57,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:15:57,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:15:57,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:15:57,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:15:57,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:15:57,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:15:57,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:15:57,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:15:57,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:15:57,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:15:57,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:15:57,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:15:57,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:15:57,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:15:57,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:15:57,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:15:57,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:15:57,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:15:57,735 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:15:57,735 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-07-07 11:15:57,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596d59114/e13ad8fe0e0f4fbf9b55219e276514e6/FLAGc32af37ad [2020-07-07 11:15:58,359 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:15:58,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-07-07 11:15:58,375 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596d59114/e13ad8fe0e0f4fbf9b55219e276514e6/FLAGc32af37ad [2020-07-07 11:15:58,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/596d59114/e13ad8fe0e0f4fbf9b55219e276514e6 [2020-07-07 11:15:58,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:15:58,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:15:58,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:15:58,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:15:58,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:15:58,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461264cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:58, skipping insertion in model container [2020-07-07 11:15:58,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:15:58" (1/1) ... [2020-07-07 11:15:58,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:15:58,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:15:59,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:15:59,426 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:15:59,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:15:59,547 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:15:59,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59 WrapperNode [2020-07-07 11:15:59,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:15:59,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:15:59,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:15:59,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:15:59,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (1/1) ... [2020-07-07 11:15:59,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (1/1) ... [2020-07-07 11:15:59,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (1/1) ... [2020-07-07 11:15:59,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (1/1) ... [2020-07-07 11:15:59,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (1/1) ... [2020-07-07 11:15:59,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (1/1) ... [2020-07-07 11:15:59,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (1/1) ... [2020-07-07 11:15:59,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:15:59,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:15:59,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:15:59,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:15:59,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (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 11:15:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:15:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:15:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-07-07 11:15:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-07 11:15:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-07 11:15:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-07-07 11:15:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-07-07 11:15:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-07-07 11:15:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-07-07 11:15:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-07-07 11:15:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-07-07 11:15:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-07-07 11:15:59,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-07-07 11:15:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-07-07 11:15:59,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-07-07 11:15:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-07-07 11:15:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-07-07 11:15:59,723 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-07-07 11:15:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-07-07 11:15:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-07-07 11:15:59,724 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-07-07 11:15:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:15:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:15:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-07 11:15:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-07 11:15:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-07 11:15:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-07 11:15:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-07 11:15:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-07 11:15:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-07 11:15:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-07 11:15:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-07 11:15:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-07 11:15:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-07 11:15:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-07 11:15:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-07 11:15:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-07 11:15:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-07 11:15:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-07 11:15:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-07 11:15:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-07 11:15:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-07 11:15:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-07 11:15:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-07 11:15:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-07 11:15:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-07 11:15:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-07 11:15:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-07 11:15:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-07 11:15:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-07 11:15:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-07 11:15:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-07 11:15:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-07 11:15:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-07 11:15:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-07 11:15:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-07 11:15:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-07 11:15:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-07 11:15:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-07 11:15:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-07 11:15:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-07 11:15:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-07 11:15:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-07 11:15:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-07 11:15:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-07 11:15:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-07 11:15:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-07 11:15:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-07 11:15:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-07 11:15:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-07 11:15:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-07 11:15:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-07 11:15:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-07 11:15:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-07 11:15:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-07 11:15:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:15:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-07 11:15:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-07 11:15:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 11:15:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-07 11:15:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-07 11:15:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-07 11:15:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-07 11:15:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-07 11:15:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:15:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-07 11:15:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-07 11:15:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-07 11:15:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:15:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-07 11:15:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-07 11:15:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-07 11:15:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-07 11:15:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-07 11:15:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-07 11:15:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-07 11:15:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-07 11:15:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-07 11:15:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-07 11:15:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-07 11:15:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-07 11:15:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-07 11:15:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-07 11:15:59,742 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-07 11:15:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-07 11:15:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-07 11:15:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-07 11:15:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-07 11:15:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-07 11:15:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-07 11:15:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-07 11:15:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-07 11:15:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-07 11:15:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-07 11:15:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-07 11:15:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-07 11:15:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-07 11:15:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-07 11:15:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-07 11:15:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-07 11:15:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-07 11:15:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-07 11:15:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-07 11:15:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-07 11:15:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-07 11:15:59,746 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-07 11:15:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-07 11:15:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-07 11:15:59,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:15:59,748 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-07-07 11:15:59,748 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-07-07 11:15:59,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:15:59,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 11:15:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-07-07 11:15:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-07-07 11:15:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 11:15:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-07-07 11:15:59,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:15:59,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-07-07 11:15:59,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-07 11:15:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:15:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-07-07 11:15:59,754 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-07-07 11:15:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-07-07 11:15:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-07-07 11:15:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:15:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:15:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:16:00,519 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:16:00,519 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-07-07 11:16:00,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:16:00 BoogieIcfgContainer [2020-07-07 11:16:00,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:16:00,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:16:00,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:16:00,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:16:00,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:15:58" (1/3) ... [2020-07-07 11:16:00,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433e0dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:16:00, skipping insertion in model container [2020-07-07 11:16:00,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:15:59" (2/3) ... [2020-07-07 11:16:00,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433e0dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:16:00, skipping insertion in model container [2020-07-07 11:16:00,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:16:00" (3/3) ... [2020-07-07 11:16:00,533 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-07-07 11:16:00,544 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:16:00,552 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:16:00,566 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:16:00,591 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:16:00,591 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:16:00,591 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:16:00,591 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:16:00,592 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:16:00,592 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:16:00,592 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:16:00,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:16:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-07 11:16:00,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-07 11:16:00,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:00,626 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 11:16:00,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:00,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:00,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2020-07-07 11:16:00,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:00,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531826678] [2020-07-07 11:16:00,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,220 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 11:16:01,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531826678] [2020-07-07 11:16:01,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:16:01,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:16:01,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531894166] [2020-07-07 11:16:01,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:16:01,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:01,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:16:01,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:16:01,247 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-07-07 11:16:01,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:01,688 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2020-07-07 11:16:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:16:01,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-07-07 11:16:01,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:01,706 INFO L225 Difference]: With dead ends: 343 [2020-07-07 11:16:01,707 INFO L226 Difference]: Without dead ends: 166 [2020-07-07 11:16:01,715 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 11:16:01,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-07-07 11:16:01,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2020-07-07 11:16:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-07-07 11:16:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2020-07-07 11:16:01,787 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2020-07-07 11:16:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:01,787 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2020-07-07 11:16:01,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:16:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2020-07-07 11:16:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-07 11:16:01,792 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:01,793 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 11:16:01,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:16:01,794 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:01,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2020-07-07 11:16:01,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:01,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154903596] [2020-07-07 11:16:01,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,305 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 11:16:02,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154903596] [2020-07-07 11:16:02,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661589597] [2020-07-07 11:16:02,306 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 11:16:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:02,474 INFO L264 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 11:16:02,487 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:16:02,578 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 11:16:02,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:16:02,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 13 [2020-07-07 11:16:02,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396013532] [2020-07-07 11:16:02,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-07 11:16:02,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:02,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-07 11:16:02,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:16:02,583 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 13 states. [2020-07-07 11:16:03,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:03,737 INFO L93 Difference]: Finished difference Result 327 states and 406 transitions. [2020-07-07 11:16:03,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:16:03,737 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2020-07-07 11:16:03,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:03,740 INFO L225 Difference]: With dead ends: 327 [2020-07-07 11:16:03,740 INFO L226 Difference]: Without dead ends: 179 [2020-07-07 11:16:03,743 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 11:16:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-07-07 11:16:03,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2020-07-07 11:16:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-07-07 11:16:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 199 transitions. [2020-07-07 11:16:03,765 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 199 transitions. Word has length 60 [2020-07-07 11:16:03,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:03,765 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 199 transitions. [2020-07-07 11:16:03,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-07 11:16:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 199 transitions. [2020-07-07 11:16:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 11:16:03,768 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:03,769 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 11:16:03,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-07 11:16:03,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:03,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:03,984 INFO L82 PathProgramCache]: Analyzing trace with hash 586330229, now seen corresponding path program 1 times [2020-07-07 11:16:03,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:03,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185692150] [2020-07-07 11:16:03,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,315 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 11:16:05,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185692150] [2020-07-07 11:16:05,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224394888] [2020-07-07 11:16:05,316 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 11:16:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:05,535 INFO L264 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-07 11:16:05,545 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:16:05,842 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:05,843 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 11:16:05,843 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:05,875 INFO L624 ElimStorePlain]: treesize reduction 20, result has 60.8 percent of original size [2020-07-07 11:16:05,876 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 11:16:05,877 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:8 [2020-07-07 11:16:05,977 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 11:16:05,978 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:05,979 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:05,979 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 11:16:05,980 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2020-07-07 11:16:06,109 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 11:16:06,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:16:06,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 33 [2020-07-07 11:16:06,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837028792] [2020-07-07 11:16:06,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-07 11:16:06,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:06,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-07 11:16:06,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=983, Unknown=0, NotChecked=0, Total=1056 [2020-07-07 11:16:06,113 INFO L87 Difference]: Start difference. First operand 168 states and 199 transitions. Second operand 33 states. [2020-07-07 11:16:08,183 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-07-07 11:16:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:10,448 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2020-07-07 11:16:10,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-07 11:16:10,452 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 154 [2020-07-07 11:16:10,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:10,459 INFO L225 Difference]: With dead ends: 411 [2020-07-07 11:16:10,459 INFO L226 Difference]: Without dead ends: 249 [2020-07-07 11:16:10,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=259, Invalid=2933, Unknown=0, NotChecked=0, Total=3192 [2020-07-07 11:16:10,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-07-07 11:16:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 205. [2020-07-07 11:16:10,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-07-07 11:16:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 243 transitions. [2020-07-07 11:16:10,509 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 243 transitions. Word has length 154 [2020-07-07 11:16:10,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:10,510 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 243 transitions. [2020-07-07 11:16:10,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-07 11:16:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 243 transitions. [2020-07-07 11:16:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-07 11:16:10,513 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:10,513 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 11:16:10,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:16:10,729 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:10,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:10,730 INFO L82 PathProgramCache]: Analyzing trace with hash -477532124, now seen corresponding path program 1 times [2020-07-07 11:16:10,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:10,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543021133] [2020-07-07 11:16:10,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,313 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 11:16:12,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543021133] [2020-07-07 11:16:12,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260808594] [2020-07-07 11:16:12,316 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 11:16:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:12,576 INFO L264 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 62 conjunts are in the unsatisfiable core [2020-07-07 11:16:12,585 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:16:12,680 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 11:16:12,681 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:12,687 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:12,688 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 11:16:12,688 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2020-07-07 11:16:12,701 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 11:16:12,702 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:12,707 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:12,708 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 11:16:12,708 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:3 [2020-07-07 11:16:14,947 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$.base)| alloc_or_die_slave_~ptr~0.base (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 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 11:16:16,268 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$.base)| alloc_or_die_slave_~ptr~0.base (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0)) |c_dll_insert_slave_#in~dll.base|) |c_dll_insert_slave_#in~dll.offset|)))) is different from true [2020-07-07 11:16:17,604 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$.base)| alloc_or_die_slave_~ptr~0.base (store (select |c_old(#memory_$Pointer$.base)| alloc_or_die_slave_~ptr~0.base) alloc_or_die_slave_~ptr~0.offset 0)) |c_##fun~$Pointer$~TO~VOID_#in~9.base|) |c_##fun~$Pointer$~TO~VOID_#in~9.offset|)))) is different from true [2020-07-07 11:16:17,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-07 11:16:17,629 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-07 11:16:17,630 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-07 11:16:17,631 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 11:16:17,631 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:34, output treesize:1 [2020-07-07 11:16:17,715 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 11:16:17,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:16:17,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 31 [2020-07-07 11:16:17,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555914071] [2020-07-07 11:16:17,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-07 11:16:17,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:16:17,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-07 11:16:17,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=682, Unknown=3, NotChecked=162, Total=930 [2020-07-07 11:16:17,720 INFO L87 Difference]: Start difference. First operand 205 states and 243 transitions. Second operand 31 states. [2020-07-07 11:16:22,346 WARN L193 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-07-07 11:16:27,523 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-07-07 11:16:30,447 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-07-07 11:16:33,831 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-07-07 11:16:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:16:35,809 INFO L93 Difference]: Finished difference Result 414 states and 502 transitions. [2020-07-07 11:16:35,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 11:16:35,810 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 157 [2020-07-07 11:16:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:16:35,813 INFO L225 Difference]: With dead ends: 414 [2020-07-07 11:16:35,813 INFO L226 Difference]: Without dead ends: 226 [2020-07-07 11:16:35,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=226, Invalid=1852, Unknown=4, NotChecked=270, Total=2352 [2020-07-07 11:16:35,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-07 11:16:35,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 213. [2020-07-07 11:16:35,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-07 11:16:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 252 transitions. [2020-07-07 11:16:35,841 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 252 transitions. Word has length 157 [2020-07-07 11:16:35,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:16:35,841 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 252 transitions. [2020-07-07 11:16:35,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-07 11:16:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 252 transitions. [2020-07-07 11:16:35,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-07 11:16:35,844 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:16:35,844 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 11:16:36,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:16:36,060 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:16:36,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:16:36,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1709746076, now seen corresponding path program 1 times [2020-07-07 11:16:36,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:16:36,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359867606] [2020-07-07 11:16:36,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:16:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:38,511 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2020-07-07 11:16:38,737 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-07-07 11:16:38,939 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2020-07-07 11:16:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:16:54,956 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 256 DAG size of output: 51 [2020-07-07 11:19:40,575 WARN L193 SmtUtils]: Spent 2.57 m on a formula simplification. DAG size of input: 6034 DAG size of output: 34 [2020-07-07 11:26:49,734 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-07-07 11:26:49,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 11:26:49,736 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:131) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:53) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:737) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walkParam(SimplifyDDA.java:526) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:412) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:649) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:164) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:134) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:593) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:171) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 67 more [2020-07-07 11:26:49,743 INFO L168 Benchmark]: Toolchain (without parser) took 650955.04 ms. Allocated memory was 141.0 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 99.1 MB in the beginning and 400.8 MB in the end (delta: -301.7 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2020-07-07 11:26:49,747 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 11:26:49,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.60 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 98.9 MB in the beginning and 163.9 MB in the end (delta: -65.0 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-07-07 11:26:49,751 INFO L168 Benchmark]: Boogie Preprocessor took 97.71 ms. Allocated memory is still 202.4 MB. Free memory was 163.9 MB in the beginning and 159.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:26:49,752 INFO L168 Benchmark]: RCFGBuilder took 878.66 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 159.8 MB in the beginning and 201.7 MB in the end (delta: -41.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-07-07 11:26:49,753 INFO L168 Benchmark]: TraceAbstraction took 649215.12 ms. Allocated memory was 231.2 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 201.7 MB in the beginning and 400.8 MB in the end (delta: -199.1 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2020-07-07 11:26:49,760 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.60 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 98.9 MB in the beginning and 163.9 MB in the end (delta: -65.0 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.71 ms. Allocated memory is still 202.4 MB. Free memory was 163.9 MB in the beginning and 159.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 878.66 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 159.8 MB in the beginning and 201.7 MB in the end (delta: -41.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 649215.12 ms. Allocated memory was 231.2 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 201.7 MB in the beginning and 400.8 MB in the end (delta: -199.1 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...