/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-token-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:30:59,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:30:59,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:30:59,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:30:59,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:30:59,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:30:59,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:30:59,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:30:59,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:30:59,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:30:59,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:30:59,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:30:59,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:30:59,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:30:59,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:30:59,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:30:59,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:30:59,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:30:59,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:30:59,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:30:59,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:30:59,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:30:59,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:30:59,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:30:59,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 22:30:59,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 22:30:59,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 22:30:59,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 22:30:59,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 22:30:59,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 22:30:59,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 22:30:59,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 22:30:59,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 22:30:59,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 22:30:59,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 22:30:59,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 22:30:59,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 22:30:59,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 22:30:59,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:30:59,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:30:59,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:30:59,586 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 [2020-11-06 22:30:59,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:30:59,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:30:59,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:30:59,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:30:59,618 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:30:59,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:30:59,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:30:59,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:30:59,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:30:59,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:30:59,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:30:59,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:30:59,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:30:59,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:30:59,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:30:59,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:30:59,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:30:59,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:30:59,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:30:59,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:30:59,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:30:59,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:30:59,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:30:59,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:30:59,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:30:59,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:30:59,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:30:59,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:30:59,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:30:59,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:30:59,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:31:00,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:31:00,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:31:00,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:31:00,028 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:31:00,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-token-1.i [2020-11-06 22:31:00,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06b46296/f82a0d24fa504a10a12e26ca1592a261/FLAGecf579a19 [2020-11-06 22:31:00,881 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:31:00,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-token-1.i [2020-11-06 22:31:00,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06b46296/f82a0d24fa504a10a12e26ca1592a261/FLAGecf579a19 [2020-11-06 22:31:01,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06b46296/f82a0d24fa504a10a12e26ca1592a261 [2020-11-06 22:31:01,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:31:01,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:31:01,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:01,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:31:01,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:31:01,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0cf404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01, skipping insertion in model container [2020-11-06 22:31:01,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:31:01,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:31:01,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:01,492 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:31:01,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:31:01,648 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:31:01,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01 WrapperNode [2020-11-06 22:31:01,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:31:01,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:31:01,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:31:01,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:31:01,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (1/1) ... [2020-11-06 22:31:01,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:31:01,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:31:01,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:31:01,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:31:01,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (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 [2020-11-06 22:31:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:31:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:31:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:31:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:31:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-06 22:31:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-06 22:31:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-06 22:31:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-06 22:31:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-06 22:31:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-06 22:31:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-06 22:31:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-06 22:31:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-06 22:31:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-06 22:31:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-06 22:31:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-06 22:31:01,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-06 22:31:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-06 22:31:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-06 22:31:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-06 22:31:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-06 22:31:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-06 22:31:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-06 22:31:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-06 22:31:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-06 22:31:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-06 22:31:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-06 22:31:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-06 22:31:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-06 22:31:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-06 22:31:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-06 22:31:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-06 22:31:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-06 22:31:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-06 22:31:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-06 22:31:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-06 22:31:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-06 22:31:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-06 22:31:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-06 22:31:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 22:31:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-06 22:31:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-06 22:31:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 22:31:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-06 22:31:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-06 22:31:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-06 22:31:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-06 22:31:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-06 22:31:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:31:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-06 22:31:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-06 22:31:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-06 22:31:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:31:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-06 22:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-06 22:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-06 22:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-06 22:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-06 22:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-06 22:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-06 22:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-06 22:31:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-06 22:31:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-06 22:31:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-06 22:31:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-06 22:31:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-06 22:31:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-06 22:31:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-06 22:31:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-06 22:31:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-06 22:31:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-06 22:31:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-06 22:31:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-06 22:31:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-06 22:31:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-06 22:31:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-06 22:31:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-06 22:31:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-06 22:31:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-06 22:31:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-06 22:31:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-06 22:31:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-06 22:31:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-06 22:31:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-06 22:31:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-06 22:31:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-06 22:31:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-06 22:31:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-06 22:31:01,833 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-06 22:31:01,834 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:31:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:31:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:31:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 22:31:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 22:31:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:31:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 22:31:01,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:31:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:31:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:31:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:31:01,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:31:02,551 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:31:02,552 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-06 22:31:02,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:02 BoogieIcfgContainer [2020-11-06 22:31:02,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:31:02,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:31:02,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:31:02,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:31:02,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:31:01" (1/3) ... [2020-11-06 22:31:02,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35249214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:02, skipping insertion in model container [2020-11-06 22:31:02,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:01" (2/3) ... [2020-11-06 22:31:02,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35249214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:02, skipping insertion in model container [2020-11-06 22:31:02,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:02" (3/3) ... [2020-11-06 22:31:02,570 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-token-1.i [2020-11-06 22:31:02,589 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:31:02,595 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:31:02,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:31:02,662 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:31:02,662 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:31:02,662 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:31:02,662 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:31:02,669 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:31:02,671 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:31:02,671 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:31:02,671 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:31:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-11-06 22:31:02,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-06 22:31:02,704 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:02,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:02,705 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:02,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:02,715 INFO L82 PathProgramCache]: Analyzing trace with hash 856451337, now seen corresponding path program 1 times [2020-11-06 22:31:02,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:02,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456625579] [2020-11-06 22:31:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:02,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:03,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456625579] [2020-11-06 22:31:03,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:03,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 22:31:03,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47501494] [2020-11-06 22:31:03,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 22:31:03,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:03,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 22:31:03,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:31:03,042 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2020-11-06 22:31:03,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:03,219 INFO L93 Difference]: Finished difference Result 93 states and 151 transitions. [2020-11-06 22:31:03,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-06 22:31:03,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-06 22:31:03,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:03,231 INFO L225 Difference]: With dead ends: 93 [2020-11-06 22:31:03,231 INFO L226 Difference]: Without dead ends: 39 [2020-11-06 22:31:03,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 22:31:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-06 22:31:03,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-06 22:31:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-06 22:31:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2020-11-06 22:31:03,295 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 12 [2020-11-06 22:31:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:03,296 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2020-11-06 22:31:03,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 22:31:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2020-11-06 22:31:03,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-06 22:31:03,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:03,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:03,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:31:03,298 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:03,299 INFO L82 PathProgramCache]: Analyzing trace with hash 734291246, now seen corresponding path program 1 times [2020-11-06 22:31:03,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:03,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789964609] [2020-11-06 22:31:03,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:03,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:31:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:31:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:31:03,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789964609] [2020-11-06 22:31:03,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:31:03,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-06 22:31:03,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548908015] [2020-11-06 22:31:03,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:31:03,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:31:03,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:31:03,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:31:03,443 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 5 states. [2020-11-06 22:31:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:31:03,592 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2020-11-06 22:31:03,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:31:03,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-06 22:31:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:31:03,594 INFO L225 Difference]: With dead ends: 64 [2020-11-06 22:31:03,595 INFO L226 Difference]: Without dead ends: 60 [2020-11-06 22:31:03,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:31:03,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-06 22:31:03,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2020-11-06 22:31:03,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-06 22:31:03,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-11-06 22:31:03,606 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 13 [2020-11-06 22:31:03,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:31:03,606 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-11-06 22:31:03,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:31:03,607 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-11-06 22:31:03,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-06 22:31:03,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:31:03,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:31:03,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:31:03,608 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:31:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:31:03,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1364408435, now seen corresponding path program 1 times [2020-11-06 22:31:03,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:31:03,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65726481] [2020-11-06 22:31:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:31:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:31:03,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:31:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:31:03,691 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:31:03,724 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:31:03,725 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:31:03,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 22:31:03,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:31:03 BoogieIcfgContainer [2020-11-06 22:31:03,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:31:03,759 INFO L168 Benchmark]: Toolchain (without parser) took 2632.59 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.6 MB in the beginning and 135.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:03,760 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:31:03,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.39 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:03,761 INFO L168 Benchmark]: Boogie Preprocessor took 66.37 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 100.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:03,762 INFO L168 Benchmark]: RCFGBuilder took 837.48 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 94.1 MB in the end (delta: 6.2 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:31:03,763 INFO L168 Benchmark]: TraceAbstraction took 1196.45 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 93.6 MB in the beginning and 135.1 MB in the end (delta: -41.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:31:03,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 122.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 518.39 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 103.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.37 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 100.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 837.48 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 94.1 MB in the end (delta: 6.2 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1196.45 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 93.6 MB in the beginning and 135.1 MB in the end (delta: -41.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) [L1005] head->data = 0 [L1007] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 [L1019] x->next = malloc(sizeof(SLL)) [L1020] EXPR x->next [L1020] x->next->data = 2 [L1022] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1026] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1031] COND TRUE !(2 == x->data) [L1031] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "sll-token-1.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 74 SDtfs, 70 SDslu, 67 SDs, 0 SdLazy, 124 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 2 MinimizatonAttempts, 22 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 994 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...