java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-data/calendar_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 17:28:04,534 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 17:28:04,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 17:28:04,548 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 17:28:04,548 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 17:28:04,549 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 17:28:04,551 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 17:28:04,553 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 17:28:04,555 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 17:28:04,556 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 17:28:04,566 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 17:28:04,566 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 17:28:04,567 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 17:28:04,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 17:28:04,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 17:28:04,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 17:28:04,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 17:28:04,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 17:28:04,581 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 17:28:04,583 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 17:28:04,584 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 17:28:04,585 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 17:28:04,587 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-14 17:28:04,587 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-14 17:28:04,588 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-14 17:28:04,588 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-14 17:28:04,589 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-14 17:28:04,590 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-14 17:28:04,591 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-14 17:28:04,592 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-14 17:28:04,592 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-14 17:28:04,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-14 17:28:04,593 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-14 17:28:04,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-14 17:28:04,594 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-14 17:28:04,595 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-14 17:28:04,595 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-14 17:28:04,609 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 17:28:04,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 17:28:04,610 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 17:28:04,611 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 17:28:04,611 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 17:28:04,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 17:28:04,612 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 17:28:04,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 17:28:04,612 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 17:28:04,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 17:28:04,613 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 17:28:04,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 17:28:04,613 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 17:28:04,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 17:28:04,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 17:28:04,614 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 17:28:04,614 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 17:28:04,614 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 17:28:04,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 17:28:04,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 17:28:04,615 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 17:28:04,615 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 17:28:04,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 17:28:04,615 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 17:28:04,615 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 17:28:04,616 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 17:28:04,616 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 17:28:04,616 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 17:28:04,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 17:28:04,616 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 17:28:04,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 17:28:04,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 17:28:04,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 17:28:04,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 17:28:04,685 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 17:28:04,686 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/calendar_true-unreach-call.i [2018-11-14 17:28:04,755 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c560f0ec5/e8bc21cd29e94aff85c578bcb2e8c8f7/FLAG72e106eea [2018-11-14 17:28:05,306 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 17:28:05,308 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/calendar_true-unreach-call.i [2018-11-14 17:28:05,321 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c560f0ec5/e8bc21cd29e94aff85c578bcb2e8c8f7/FLAG72e106eea [2018-11-14 17:28:05,335 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c560f0ec5/e8bc21cd29e94aff85c578bcb2e8c8f7 [2018-11-14 17:28:05,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 17:28:05,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 17:28:05,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 17:28:05,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 17:28:05,351 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 17:28:05,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:05,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b6be04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05, skipping insertion in model container [2018-11-14 17:28:05,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:05,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 17:28:05,424 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 17:28:05,826 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:28:05,843 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 17:28:05,900 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:28:05,961 INFO L195 MainTranslator]: Completed translation [2018-11-14 17:28:05,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05 WrapperNode [2018-11-14 17:28:05,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 17:28:05,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 17:28:05,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 17:28:05,963 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 17:28:06,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:06,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:06,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:06,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:06,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:06,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:06,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (1/1) ... [2018-11-14 17:28:06,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 17:28:06,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 17:28:06,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 17:28:06,143 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 17:28:06,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (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 [2018-11-14 17:28:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 17:28:06,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 17:28:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-14 17:28:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-14 17:28:06,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 17:28:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 17:28:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 17:28:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-14 17:28:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-14 17:28:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-14 17:28:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-14 17:28:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-14 17:28:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-14 17:28:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-14 17:28:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-14 17:28:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-14 17:28:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-14 17:28:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-14 17:28:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-14 17:28:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-14 17:28:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-14 17:28:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-14 17:28:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-14 17:28:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-14 17:28:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-14 17:28:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-14 17:28:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-14 17:28:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-14 17:28:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-14 17:28:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-14 17:28:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-14 17:28:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-14 17:28:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-14 17:28:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-14 17:28:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-14 17:28:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-14 17:28:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-14 17:28:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-14 17:28:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-14 17:28:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-14 17:28:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-14 17:28:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-14 17:28:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-14 17:28:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-14 17:28:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-14 17:28:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-14 17:28:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-14 17:28:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-14 17:28:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-14 17:28:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-14 17:28:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-14 17:28:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-14 17:28:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-14 17:28:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-14 17:28:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-14 17:28:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-14 17:28:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-14 17:28:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-14 17:28:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-14 17:28:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-14 17:28:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-14 17:28:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-14 17:28:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-14 17:28:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-14 17:28:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-14 17:28:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-14 17:28:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-14 17:28:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-14 17:28:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-14 17:28:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-14 17:28:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-14 17:28:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-14 17:28:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-14 17:28:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-14 17:28:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-14 17:28:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-14 17:28:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-14 17:28:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-14 17:28:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-14 17:28:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-14 17:28:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-14 17:28:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-14 17:28:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-14 17:28:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-14 17:28:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-14 17:28:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-14 17:28:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-14 17:28:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-14 17:28:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-14 17:28:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-14 17:28:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-14 17:28:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-14 17:28:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-14 17:28:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-14 17:28:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-14 17:28:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-14 17:28:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-14 17:28:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-14 17:28:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-14 17:28:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-14 17:28:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-14 17:28:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-14 17:28:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-14 17:28:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-14 17:28:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-14 17:28:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-14 17:28:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-14 17:28:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-14 17:28:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-14 17:28:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-14 17:28:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-14 17:28:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-14 17:28:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 17:28:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 17:28:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-14 17:28:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-14 17:28:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-14 17:28:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-14 17:28:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 17:28:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 17:28:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-14 17:28:06,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 17:28:07,139 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 17:28:07,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:28:07 BoogieIcfgContainer [2018-11-14 17:28:07,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 17:28:07,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 17:28:07,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 17:28:07,144 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 17:28:07,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:28:05" (1/3) ... [2018-11-14 17:28:07,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578945a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:28:07, skipping insertion in model container [2018-11-14 17:28:07,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:28:05" (2/3) ... [2018-11-14 17:28:07,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578945a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:28:07, skipping insertion in model container [2018-11-14 17:28:07,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:28:07" (3/3) ... [2018-11-14 17:28:07,148 INFO L112 eAbstractionObserver]: Analyzing ICFG calendar_true-unreach-call.i [2018-11-14 17:28:07,159 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 17:28:07,167 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 17:28:07,185 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 17:28:07,218 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 17:28:07,219 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 17:28:07,219 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 17:28:07,220 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 17:28:07,220 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 17:28:07,220 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 17:28:07,220 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 17:28:07,220 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 17:28:07,221 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 17:28:07,244 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-14 17:28:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-14 17:28:07,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:28:07,252 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:28:07,255 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:28:07,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:28:07,261 INFO L82 PathProgramCache]: Analyzing trace with hash 142245745, now seen corresponding path program 1 times [2018-11-14 17:28:07,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:28:07,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:28:07,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:28:07,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:28:07,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:28:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:28:07,457 INFO L256 TraceCheckUtils]: 0: Hoare triple {30#true} call ULTIMATE.init(); {30#true} is VALID [2018-11-14 17:28:07,462 INFO L273 TraceCheckUtils]: 1: Hoare triple {30#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {30#true} is VALID [2018-11-14 17:28:07,462 INFO L273 TraceCheckUtils]: 2: Hoare triple {30#true} assume true; {30#true} is VALID [2018-11-14 17:28:07,463 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {30#true} {30#true} #79#return; {30#true} is VALID [2018-11-14 17:28:07,464 INFO L256 TraceCheckUtils]: 4: Hoare triple {30#true} call #t~ret14 := main(); {30#true} is VALID [2018-11-14 17:28:07,464 INFO L273 TraceCheckUtils]: 5: Hoare triple {30#true} ~l~0.base, ~l~0.offset := 0, 0; {30#true} is VALID [2018-11-14 17:28:07,468 INFO L273 TraceCheckUtils]: 6: Hoare triple {30#true} assume !true; {31#false} is VALID [2018-11-14 17:28:07,468 INFO L273 TraceCheckUtils]: 7: Hoare triple {31#false} ~i~0.base, ~i~0.offset := ~l~0.base, ~l~0.offset; {31#false} is VALID [2018-11-14 17:28:07,469 INFO L273 TraceCheckUtils]: 8: Hoare triple {31#false} assume true; {31#false} is VALID [2018-11-14 17:28:07,469 INFO L273 TraceCheckUtils]: 9: Hoare triple {31#false} assume !!(~i~0.base != 0 || ~i~0.offset != 0);call #t~mem6 := read~int(~i~0.base, ~i~0.offset + 4, 4);#t~short8 := #t~mem6 == 1; {31#false} is VALID [2018-11-14 17:28:07,469 INFO L273 TraceCheckUtils]: 10: Hoare triple {31#false} assume #t~short8;call #t~mem7 := read~int(~i~0.base, ~i~0.offset + 8, 4);#t~short8 := #t~mem7 == 3; {31#false} is VALID [2018-11-14 17:28:07,470 INFO L273 TraceCheckUtils]: 11: Hoare triple {31#false} #t~short12 := #t~short8; {31#false} is VALID [2018-11-14 17:28:07,470 INFO L273 TraceCheckUtils]: 12: Hoare triple {31#false} assume #t~short12; {31#false} is VALID [2018-11-14 17:28:07,470 INFO L273 TraceCheckUtils]: 13: Hoare triple {31#false} assume #t~short12;havoc #t~mem7;havoc #t~mem6;havoc #t~mem9;havoc #t~short11;havoc #t~short12;havoc #t~short8;havoc #t~mem10; {31#false} is VALID [2018-11-14 17:28:07,471 INFO L273 TraceCheckUtils]: 14: Hoare triple {31#false} assume !false; {31#false} is VALID [2018-11-14 17:28:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 17:28:07,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 17:28:07,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-14 17:28:07,482 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-14 17:28:07,485 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:28:07,489 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-14 17:28:07,653 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:28:07,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-14 17:28:07,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-14 17:28:07,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 17:28:07,667 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-11-14 17:28:08,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:28:08,038 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2018-11-14 17:28:08,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-14 17:28:08,038 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-14 17:28:08,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:28:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 17:28:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2018-11-14 17:28:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 17:28:08,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2018-11-14 17:28:08,060 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 57 transitions. [2018-11-14 17:28:08,300 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:28:08,314 INFO L225 Difference]: With dead ends: 43 [2018-11-14 17:28:08,314 INFO L226 Difference]: Without dead ends: 23 [2018-11-14 17:28:08,318 INFO L604 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 [2018-11-14 17:28:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-14 17:28:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-14 17:28:08,448 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:28:08,450 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2018-11-14 17:28:08,451 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2018-11-14 17:28:08,451 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2018-11-14 17:28:08,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:28:08,457 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2018-11-14 17:28:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2018-11-14 17:28:08,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:28:08,458 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:28:08,458 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2018-11-14 17:28:08,458 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2018-11-14 17:28:08,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:28:08,467 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2018-11-14 17:28:08,468 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2018-11-14 17:28:08,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:28:08,468 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:28:08,469 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:28:08,469 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:28:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-14 17:28:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2018-11-14 17:28:08,480 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 15 [2018-11-14 17:28:08,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:28:08,480 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2018-11-14 17:28:08,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-14 17:28:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2018-11-14 17:28:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-14 17:28:08,482 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:28:08,483 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:28:08,483 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:28:08,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:28:08,483 INFO L82 PathProgramCache]: Analyzing trace with hash 416495585, now seen corresponding path program 1 times [2018-11-14 17:28:08,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:28:08,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:28:08,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:28:08,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:28:08,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:28:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:28:08,671 INFO L256 TraceCheckUtils]: 0: Hoare triple {161#true} call ULTIMATE.init(); {161#true} is VALID [2018-11-14 17:28:08,671 INFO L273 TraceCheckUtils]: 1: Hoare triple {161#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {161#true} is VALID [2018-11-14 17:28:08,672 INFO L273 TraceCheckUtils]: 2: Hoare triple {161#true} assume true; {161#true} is VALID [2018-11-14 17:28:08,672 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {161#true} {161#true} #79#return; {161#true} is VALID [2018-11-14 17:28:08,672 INFO L256 TraceCheckUtils]: 4: Hoare triple {161#true} call #t~ret14 := main(); {161#true} is VALID [2018-11-14 17:28:08,673 INFO L273 TraceCheckUtils]: 5: Hoare triple {161#true} ~l~0.base, ~l~0.offset := 0, 0; {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-14 17:28:08,675 INFO L273 TraceCheckUtils]: 6: Hoare triple {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} assume true; {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-14 17:28:08,676 INFO L273 TraceCheckUtils]: 7: Hoare triple {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-14 17:28:08,677 INFO L273 TraceCheckUtils]: 8: Hoare triple {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} assume !(#t~nondet2 != 0);havoc #t~nondet2; {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-14 17:28:08,678 INFO L273 TraceCheckUtils]: 9: Hoare triple {163#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} ~i~0.base, ~i~0.offset := ~l~0.base, ~l~0.offset; {164#(and (= main_~i~0.base 0) (= 0 main_~i~0.offset))} is VALID [2018-11-14 17:28:08,684 INFO L273 TraceCheckUtils]: 10: Hoare triple {164#(and (= main_~i~0.base 0) (= 0 main_~i~0.offset))} assume true; {164#(and (= main_~i~0.base 0) (= 0 main_~i~0.offset))} is VALID [2018-11-14 17:28:08,693 INFO L273 TraceCheckUtils]: 11: Hoare triple {164#(and (= main_~i~0.base 0) (= 0 main_~i~0.offset))} assume !!(~i~0.base != 0 || ~i~0.offset != 0);call #t~mem6 := read~int(~i~0.base, ~i~0.offset + 4, 4);#t~short8 := #t~mem6 == 1; {162#false} is VALID [2018-11-14 17:28:08,694 INFO L273 TraceCheckUtils]: 12: Hoare triple {162#false} assume #t~short8;call #t~mem7 := read~int(~i~0.base, ~i~0.offset + 8, 4);#t~short8 := #t~mem7 == 3; {162#false} is VALID [2018-11-14 17:28:08,694 INFO L273 TraceCheckUtils]: 13: Hoare triple {162#false} #t~short12 := #t~short8; {162#false} is VALID [2018-11-14 17:28:08,694 INFO L273 TraceCheckUtils]: 14: Hoare triple {162#false} assume #t~short12; {162#false} is VALID [2018-11-14 17:28:08,695 INFO L273 TraceCheckUtils]: 15: Hoare triple {162#false} assume #t~short12;havoc #t~mem7;havoc #t~mem6;havoc #t~mem9;havoc #t~short11;havoc #t~short12;havoc #t~short8;havoc #t~mem10; {162#false} is VALID [2018-11-14 17:28:08,695 INFO L273 TraceCheckUtils]: 16: Hoare triple {162#false} assume !false; {162#false} is VALID [2018-11-14 17:28:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 17:28:08,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 17:28:08,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-14 17:28:08,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-14 17:28:08,700 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:28:08,700 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-14 17:28:08,746 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:28:08,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-14 17:28:08,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-14 17:28:08,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-14 17:28:08,748 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand 4 states. [2018-11-14 17:28:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:28:09,134 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2018-11-14 17:28:09,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-14 17:28:09,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-14 17:28:09,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:28:09,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 17:28:09,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2018-11-14 17:28:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 17:28:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 54 transitions. [2018-11-14 17:28:09,141 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 54 transitions. [2018-11-14 17:28:09,279 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:28:09,281 INFO L225 Difference]: With dead ends: 42 [2018-11-14 17:28:09,281 INFO L226 Difference]: Without dead ends: 28 [2018-11-14 17:28:09,282 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-14 17:28:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-14 17:28:09,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-14 17:28:09,302 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:28:09,303 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand 28 states. [2018-11-14 17:28:09,303 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2018-11-14 17:28:09,303 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2018-11-14 17:28:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:28:09,306 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2018-11-14 17:28:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2018-11-14 17:28:09,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:28:09,307 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:28:09,307 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 28 states. [2018-11-14 17:28:09,308 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 28 states. [2018-11-14 17:28:09,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:28:09,311 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2018-11-14 17:28:09,311 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2018-11-14 17:28:09,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:28:09,312 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:28:09,312 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:28:09,312 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:28:09,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-14 17:28:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2018-11-14 17:28:09,315 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 17 [2018-11-14 17:28:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:28:09,315 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2018-11-14 17:28:09,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-14 17:28:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2018-11-14 17:28:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-14 17:28:09,316 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:28:09,317 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:28:09,317 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:28:09,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:28:09,317 INFO L82 PathProgramCache]: Analyzing trace with hash 19898201, now seen corresponding path program 1 times [2018-11-14 17:28:09,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:28:09,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:28:09,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:28:09,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:28:09,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:28:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:28:09,531 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: zero is neutral element of plus operator at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:83) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:128) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.lambda$0(UltimateNormalFormUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker$MyWalker.walk(SubtermPropertyChecker.java:63) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker.isPropertySatisfied(SubtermPropertyChecker.java:121) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.respectsUltimateNormalForm(UltimateNormalFormUtils.java:152) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:103) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.constructNewPredicate(PredicateUnifier.java:375) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:592) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-14 17:28:09,535 INFO L168 Benchmark]: Toolchain (without parser) took 4189.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -657.2 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-14 17:28:09,537 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 17:28:09,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-11-14 17:28:09,538 INFO L168 Benchmark]: Boogie Preprocessor took 179.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -823.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2018-11-14 17:28:09,539 INFO L168 Benchmark]: RCFGBuilder took 996.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. [2018-11-14 17:28:09,540 INFO L168 Benchmark]: TraceAbstraction took 2392.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 92.8 MB). Peak memory consumption was 92.8 MB. Max. memory is 7.1 GB. [2018-11-14 17:28:09,545 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 614.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 179.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -823.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 996.80 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2392.95 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 92.8 MB). Peak memory consumption was 92.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: zero is neutral element of plus operator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: zero is neutral element of plus operator: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:83) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...