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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2n_prepend_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:43,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:43,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:43,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:43,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:43,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:43,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:43,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:43,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:43,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:43,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:43,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:43,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:43,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:43,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:43,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:43,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:43,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:43,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:43,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:43,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:43,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:43,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:43,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:43,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:43,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:43,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:43,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:43,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:43,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:43,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:43,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:43,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:43,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:43,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:43,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:43,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:43,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:43,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:43,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:43,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:43,752 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 [2019-10-15 01:03:43,773 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:43,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:43,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:43,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:43,775 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:43,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:43,776 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:43,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:43,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:43,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:43,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:43,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:43,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:43,777 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:43,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:43,777 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:43,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:43,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:43,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:43,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:43,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:43,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:43,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:43,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:43,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:43,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:43,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:43,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:43,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:03:44,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:44,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:44,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:44,077 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:44,078 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:44,079 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_prepend_unequal.i [2019-10-15 01:03:44,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f4d33ad/e198d01c793a40c3b76e9527076e1ca5/FLAGc8f753549 [2019-10-15 01:03:44,678 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:44,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_prepend_unequal.i [2019-10-15 01:03:44,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f4d33ad/e198d01c793a40c3b76e9527076e1ca5/FLAGc8f753549 [2019-10-15 01:03:44,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11f4d33ad/e198d01c793a40c3b76e9527076e1ca5 [2019-10-15 01:03:44,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:44,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:44,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:44,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:44,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:44,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:44" (1/1) ... [2019-10-15 01:03:44,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eff8284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:44, skipping insertion in model container [2019-10-15 01:03:44,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:44" (1/1) ... [2019-10-15 01:03:44,997 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:45,051 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:45,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:45,502 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:45,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:45,610 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:45,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45 WrapperNode [2019-10-15 01:03:45,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:45,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:45,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:45,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:45,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (1/1) ... [2019-10-15 01:03:45,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (1/1) ... [2019-10-15 01:03:45,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (1/1) ... [2019-10-15 01:03:45,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (1/1) ... [2019-10-15 01:03:45,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (1/1) ... [2019-10-15 01:03:45,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (1/1) ... [2019-10-15 01:03:45,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (1/1) ... [2019-10-15 01:03:45,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:45,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:45,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:45,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:45,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (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 [2019-10-15 01:03:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 01:03:45,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-15 01:03:45,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-10-15 01:03:45,738 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_prepend [2019-10-15 01:03:45,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:45,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 01:03:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-15 01:03:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-10-15 01:03:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure dll_prepend [2019-10-15 01:03:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:03:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 01:03:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:46,212 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:46,385 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:46,385 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 01:03:46,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:46 BoogieIcfgContainer [2019-10-15 01:03:46,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:46,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:46,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:46,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:46,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:44" (1/3) ... [2019-10-15 01:03:46,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a47cea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:46, skipping insertion in model container [2019-10-15 01:03:46,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:45" (2/3) ... [2019-10-15 01:03:46,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a47cea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:46, skipping insertion in model container [2019-10-15 01:03:46,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:46" (3/3) ... [2019-10-15 01:03:46,394 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_unequal.i [2019-10-15 01:03:46,403 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:46,411 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:46,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:46,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:46,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:46,441 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:46,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:46,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:46,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:46,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:46,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:46,460 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2019-10-15 01:03:46,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 01:03:46,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:46,468 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:46,470 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:46,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:46,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1640491568, now seen corresponding path program 1 times [2019-10-15 01:03:46,483 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:46,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585008941] [2019-10-15 01:03:46,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:46,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:46,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:46,667 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585008941] [2019-10-15 01:03:46,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:46,669 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:46,669 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143385708] [2019-10-15 01:03:46,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:46,676 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:46,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:46,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:46,691 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2019-10-15 01:03:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:46,716 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2019-10-15 01:03:46,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:46,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 29 [2019-10-15 01:03:46,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:46,727 INFO L225 Difference]: With dead ends: 88 [2019-10-15 01:03:46,727 INFO L226 Difference]: Without dead ends: 37 [2019-10-15 01:03:46,730 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-15 01:03:46,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-10-15 01:03:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-15 01:03:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2019-10-15 01:03:46,772 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 29 [2019-10-15 01:03:46,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:46,773 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2019-10-15 01:03:46,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:46,773 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2019-10-15 01:03:46,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 01:03:46,774 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:46,774 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:46,775 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:46,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:46,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1361191619, now seen corresponding path program 1 times [2019-10-15 01:03:46,776 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:46,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873741188] [2019-10-15 01:03:46,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:46,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:46,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:46,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873741188] [2019-10-15 01:03:46,980 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:46,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:46,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486877616] [2019-10-15 01:03:46,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:46,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:46,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:46,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:46,986 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 5 states. [2019-10-15 01:03:47,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:47,031 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2019-10-15 01:03:47,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:47,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-15 01:03:47,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:47,033 INFO L225 Difference]: With dead ends: 66 [2019-10-15 01:03:47,033 INFO L226 Difference]: Without dead ends: 42 [2019-10-15 01:03:47,034 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:47,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-15 01:03:47,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2019-10-15 01:03:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-15 01:03:47,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2019-10-15 01:03:47,042 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 29 [2019-10-15 01:03:47,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:47,042 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2019-10-15 01:03:47,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2019-10-15 01:03:47,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-15 01:03:47,045 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:47,045 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:47,045 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:47,046 INFO L82 PathProgramCache]: Analyzing trace with hash -417804790, now seen corresponding path program 1 times [2019-10-15 01:03:47,046 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:47,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317589470] [2019-10-15 01:03:47,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:47,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:47,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:47,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317589470] [2019-10-15 01:03:47,152 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:47,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:03:47,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986882371] [2019-10-15 01:03:47,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:03:47,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:47,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:03:47,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:03:47,154 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 3 states. [2019-10-15 01:03:47,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:47,190 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2019-10-15 01:03:47,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:03:47,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-15 01:03:47,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:47,194 INFO L225 Difference]: With dead ends: 71 [2019-10-15 01:03:47,194 INFO L226 Difference]: Without dead ends: 42 [2019-10-15 01:03:47,195 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:03:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-15 01:03:47,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2019-10-15 01:03:47,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-15 01:03:47,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-10-15 01:03:47,206 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 34 [2019-10-15 01:03:47,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:47,207 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-10-15 01:03:47,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:03:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-10-15 01:03:47,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-15 01:03:47,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:47,218 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:47,218 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:47,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:47,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2071724172, now seen corresponding path program 1 times [2019-10-15 01:03:47,219 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:47,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028703089] [2019-10-15 01:03:47,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:47,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:47,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:47,332 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028703089] [2019-10-15 01:03:47,333 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917796661] [2019-10-15 01:03:47,333 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 [2019-10-15 01:03:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:47,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 01:03:47,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:47,513 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:47,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:47,628 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [847232504] [2019-10-15 01:03:47,636 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 35 [2019-10-15 01:03:47,686 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:47,686 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:47,758 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:47,760 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 28 variables. [2019-10-15 01:03:47,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:47,763 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:47,799 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:03:47,799 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:47,801 INFO L553 sIntCurrentIteration]: We unified 33 AI predicates to 33 [2019-10-15 01:03:47,802 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:47,802 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:47,803 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 6, 6] total 8 [2019-10-15 01:03:47,803 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970549930] [2019-10-15 01:03:47,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:47,804 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:47,804 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:47,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:47,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:47,805 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 2 states. [2019-10-15 01:03:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:47,812 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2019-10-15 01:03:47,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:47,814 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 34 [2019-10-15 01:03:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:47,814 INFO L225 Difference]: With dead ends: 41 [2019-10-15 01:03:47,814 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:47,816 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:47,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:47,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-10-15 01:03:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:47,817 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:47,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:47,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:47,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:48,022 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:48,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:48,066 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:48,067 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:48,067 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:48,067 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-15 01:03:48,067 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-15 01:03:48,067 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-15 01:03:48,068 INFO L443 ceAbstractionStarter]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2019-10-15 01:03:48,068 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: true [2019-10-15 01:03:48,068 INFO L446 ceAbstractionStarter]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2019-10-15 01:03:48,068 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2019-10-15 01:03:48,068 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2019-10-15 01:03:48,068 INFO L446 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: true [2019-10-15 01:03:48,069 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2019-10-15 01:03:48,069 INFO L443 ceAbstractionStarter]: For program point L584(lines 584 586) no Hoare annotation was computed. [2019-10-15 01:03:48,069 INFO L443 ceAbstractionStarter]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2019-10-15 01:03:48,069 INFO L443 ceAbstractionStarter]: For program point L578(lines 578 580) no Hoare annotation was computed. [2019-10-15 01:03:48,069 INFO L443 ceAbstractionStarter]: For program point dll_prependEXIT(lines 599 606) no Hoare annotation was computed. [2019-10-15 01:03:48,069 INFO L443 ceAbstractionStarter]: For program point L602(lines 602 604) no Hoare annotation was computed. [2019-10-15 01:03:48,070 INFO L446 ceAbstractionStarter]: At program point L600(line 600) the Hoare annotation is: true [2019-10-15 01:03:48,070 INFO L443 ceAbstractionStarter]: For program point L602-2(lines 602 604) no Hoare annotation was computed. [2019-10-15 01:03:48,070 INFO L443 ceAbstractionStarter]: For program point L600-1(line 600) no Hoare annotation was computed. [2019-10-15 01:03:48,070 INFO L446 ceAbstractionStarter]: At program point dll_prependENTRY(lines 599 606) the Hoare annotation is: true [2019-10-15 01:03:48,070 INFO L443 ceAbstractionStarter]: For program point dll_prependFINAL(lines 599 606) no Hoare annotation was computed. [2019-10-15 01:03:48,070 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:48,071 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:48,071 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:48,071 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:48,071 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:48,071 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:48,071 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:48,071 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:48,072 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:48,072 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:48,072 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 607 634) no Hoare annotation was computed. [2019-10-15 01:03:48,072 INFO L446 ceAbstractionStarter]: At program point L630(line 630) the Hoare annotation is: true [2019-10-15 01:03:48,072 INFO L443 ceAbstractionStarter]: For program point L630-1(line 630) no Hoare annotation was computed. [2019-10-15 01:03:48,072 INFO L439 ceAbstractionStarter]: At program point L628(lines 607 634) the Hoare annotation is: false [2019-10-15 01:03:48,073 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 607 634) no Hoare annotation was computed. [2019-10-15 01:03:48,073 INFO L443 ceAbstractionStarter]: For program point L614(lines 614 616) no Hoare annotation was computed. [2019-10-15 01:03:48,073 INFO L439 ceAbstractionStarter]: At program point L612(line 612) the Hoare annotation is: false [2019-10-15 01:03:48,073 INFO L443 ceAbstractionStarter]: For program point L612-1(line 612) no Hoare annotation was computed. [2019-10-15 01:03:48,073 INFO L439 ceAbstractionStarter]: At program point L610(line 610) the Hoare annotation is: false [2019-10-15 01:03:48,073 INFO L443 ceAbstractionStarter]: For program point L610-1(line 610) no Hoare annotation was computed. [2019-10-15 01:03:48,074 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 632) no Hoare annotation was computed. [2019-10-15 01:03:48,074 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 607 634) the Hoare annotation is: true [2019-10-15 01:03:48,074 INFO L443 ceAbstractionStarter]: For program point L621(lines 621 623) no Hoare annotation was computed. [2019-10-15 01:03:48,074 INFO L439 ceAbstractionStarter]: At program point L619-2(lines 619 626) the Hoare annotation is: false [2019-10-15 01:03:48,074 INFO L443 ceAbstractionStarter]: For program point L619-3(lines 607 634) no Hoare annotation was computed. [2019-10-15 01:03:48,075 INFO L443 ceAbstractionStarter]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2019-10-15 01:03:48,075 INFO L446 ceAbstractionStarter]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: true [2019-10-15 01:03:48,075 INFO L446 ceAbstractionStarter]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2019-10-15 01:03:48,075 INFO L443 ceAbstractionStarter]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2019-10-15 01:03:48,075 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: true [2019-10-15 01:03:48,076 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:48,076 INFO L446 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: true [2019-10-15 01:03:48,076 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:48,076 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-15 01:03:48,076 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-15 01:03:48,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:48 BoogieIcfgContainer [2019-10-15 01:03:48,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:48,088 INFO L168 Benchmark]: Toolchain (without parser) took 3108.25 ms. Allocated memory was 136.8 MB in the beginning and 230.7 MB in the end (delta: 93.8 MB). Free memory was 99.3 MB in the beginning and 97.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:48,089 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:48,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.92 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 165.7 MB in the end (delta: -66.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:48,091 INFO L168 Benchmark]: Boogie Preprocessor took 70.78 ms. Allocated memory is still 200.8 MB. Free memory was 165.7 MB in the beginning and 162.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:48,092 INFO L168 Benchmark]: RCFGBuilder took 703.81 ms. Allocated memory is still 200.8 MB. Free memory was 162.6 MB in the beginning and 113.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:48,093 INFO L168 Benchmark]: TraceAbstraction took 1697.40 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 112.5 MB in the beginning and 97.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:48,097 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 631.92 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 165.7 MB in the end (delta: -66.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.78 ms. Allocated memory is still 200.8 MB. Free memory was 165.7 MB in the beginning and 162.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 703.81 ms. Allocated memory is still 200.8 MB. Free memory was 162.6 MB in the beginning and 113.2 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1697.40 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 112.5 MB in the beginning and 97.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 632]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 619]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 58 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 142 SDtfs, 19 SDslu, 135 SDs, 0 SdLazy, 23 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 38 PreInvPairs, 39 NumberOfFragments, 20 HoareAnnotationTreeSize, 38 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 9900 SizeOfPredicates, 2 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 127, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9696969696969697, AVG_VARS_REMOVED_DURING_WEAKENING: 1.606060606060606, AVG_WEAKENED_CONJUNCTS: 0.18181818181818182, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...