java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/sll2c_update_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:03:52,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:03:52,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:03:52,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:03:52,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:03:52,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:03:52,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:03:52,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:03:52,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:03:52,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:03:52,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:03:52,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:03:52,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:03:52,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:03:52,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:03:52,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:03:52,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:03:52,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:03:52,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:03:52,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:03:52,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:03:52,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:03:52,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:03:52,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:03:52,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:03:52,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:03:52,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:03:52,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:03:52,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:03:52,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:03:52,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:03:52,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:03:52,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:03:52,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:03:52,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:03:52,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:03:52,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:03:52,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:03:52,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:03:52,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:03:52,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:03:52,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:03:52,417 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:03:52,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:03:52,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:03:52,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:03:52,421 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:03:52,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:03:52,422 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:03:52,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:03:52,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:03:52,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:03:52,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:03:52,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:03:52,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:03:52,424 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:03:52,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:03:52,425 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:03:52,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:03:52,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:03:52,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:03:52,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:03:52,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:03:52,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:52,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:03:52,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:03:52,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:03:52,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:03:52,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:03:52,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:03:52,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:03:52,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:03:52,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:03:52,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:03:52,742 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:03:52,742 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:03:52,743 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-10-15 01:03:52,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87aca9607/b19e1296c47c41a98203be5022c86439/FLAGbea265e29 [2019-10-15 01:03:53,393 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:03:53,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-10-15 01:03:53,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87aca9607/b19e1296c47c41a98203be5022c86439/FLAGbea265e29 [2019-10-15 01:03:53,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87aca9607/b19e1296c47c41a98203be5022c86439 [2019-10-15 01:03:53,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:03:53,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:03:53,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:53,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:03:53,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:03:53,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:53" (1/1) ... [2019-10-15 01:03:53,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8c8127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:53, skipping insertion in model container [2019-10-15 01:03:53,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:03:53" (1/1) ... [2019-10-15 01:03:53,695 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:03:53,737 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:03:54,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:54,180 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:03:54,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:03:54,284 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:03:54,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54 WrapperNode [2019-10-15 01:03:54,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:03:54,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:03:54,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:03:54,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:03:54,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... [2019-10-15 01:03:54,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... [2019-10-15 01:03:54,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... [2019-10-15 01:03:54,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... [2019-10-15 01:03:54,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... [2019-10-15 01:03:54,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... [2019-10-15 01:03:54,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... [2019-10-15 01:03:54,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:03:54,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:03:54,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:03:54,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:03:54,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:03:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:03:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:03:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 01:03:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 01:03:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 01:03:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 01:03:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-15 01:03:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-10-15 01:03:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_get_data_at [2019-10-15 01:03:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_update_at [2019-10-15 01:03:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:03:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:03:54,461 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 01:03:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 01:03:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 01:03:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 01:03:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 01:03:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 01:03:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 01:03:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 01:03:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 01:03:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 01:03:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 01:03:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 01:03:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 01:03:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 01:03:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 01:03:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 01:03:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 01:03:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 01:03:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 01:03:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 01:03:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 01:03:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 01:03:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 01:03:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 01:03:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 01:03:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 01:03:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 01:03:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 01:03:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 01:03:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 01:03:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 01:03:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 01:03:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 01:03:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 01:03:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 01:03:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 01:03:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 01:03:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 01:03:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 01:03:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 01:03:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 01:03:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 01:03:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 01:03:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 01:03:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 01:03:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 01:03:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 01:03:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 01:03:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 01:03:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 01:03:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 01:03:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 01:03:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:03:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 01:03:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 01:03:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:03:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 01:03:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 01:03:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 01:03:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 01:03:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 01:03:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 01:03:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 01:03:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 01:03:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 01:03:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:03:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 01:03:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 01:03:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 01:03:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 01:03:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 01:03:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 01:03:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 01:03:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 01:03:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 01:03:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 01:03:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 01:03:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 01:03:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 01:03:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 01:03:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 01:03:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 01:03:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 01:03:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 01:03:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 01:03:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 01:03:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 01:03:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 01:03:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 01:03:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 01:03:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 01:03:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 01:03:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 01:03:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 01:03:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 01:03:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 01:03:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 01:03:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 01:03:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 01:03:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 01:03:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 01:03:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 01:03:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 01:03:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 01:03:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 01:03:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 01:03:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 01:03:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:03:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:03:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:03:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-15 01:03:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-10-15 01:03:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:03:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:03:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_get_data_at [2019-10-15 01:03:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:03:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_update_at [2019-10-15 01:03:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:03:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:03:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:03:54,930 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 01:03:55,116 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:03:55,116 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-15 01:03:55,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:55 BoogieIcfgContainer [2019-10-15 01:03:55,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:03:55,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:03:55,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:03:55,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:03:55,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:03:53" (1/3) ... [2019-10-15 01:03:55,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43812dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:55, skipping insertion in model container [2019-10-15 01:03:55,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:03:54" (2/3) ... [2019-10-15 01:03:55,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43812dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:03:55, skipping insertion in model container [2019-10-15 01:03:55,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:03:55" (3/3) ... [2019-10-15 01:03:55,126 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all.i [2019-10-15 01:03:55,135 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:03:55,143 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:03:55,155 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:03:55,179 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:03:55,179 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:03:55,179 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:03:55,179 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:03:55,179 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:03:55,179 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:03:55,180 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:03:55,180 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:03:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2019-10-15 01:03:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 01:03:55,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:55,206 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:55,208 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:55,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:55,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1158667966, now seen corresponding path program 1 times [2019-10-15 01:03:55,224 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:55,224 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97782266] [2019-10-15 01:03:55,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:55,225 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:55,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:55,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:55,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97782266] [2019-10-15 01:03:55,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:55,407 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:03:55,407 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803822442] [2019-10-15 01:03:55,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:03:55,414 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:55,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:03:55,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:55,435 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2019-10-15 01:03:55,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:55,471 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2019-10-15 01:03:55,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:03:55,472 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-10-15 01:03:55,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:55,483 INFO L225 Difference]: With dead ends: 95 [2019-10-15 01:03:55,483 INFO L226 Difference]: Without dead ends: 43 [2019-10-15 01:03:55,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:03:55,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-15 01:03:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-10-15 01:03:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-15 01:03:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2019-10-15 01:03:55,557 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 32 [2019-10-15 01:03:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:55,560 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2019-10-15 01:03:55,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:03:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2019-10-15 01:03:55,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 01:03:55,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:55,566 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:55,566 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:55,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:55,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1470117915, now seen corresponding path program 1 times [2019-10-15 01:03:55,568 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:55,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939647286] [2019-10-15 01:03:55,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:55,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:55,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:03:55,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939647286] [2019-10-15 01:03:55,807 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:55,807 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:03:55,808 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754041514] [2019-10-15 01:03:55,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:03:55,810 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:55,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:03:55,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:03:55,811 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 5 states. [2019-10-15 01:03:55,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:55,886 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2019-10-15 01:03:55,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:03:55,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-15 01:03:55,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:55,888 INFO L225 Difference]: With dead ends: 71 [2019-10-15 01:03:55,889 INFO L226 Difference]: Without dead ends: 46 [2019-10-15 01:03:55,890 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-10-15 01:03:55,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2019-10-15 01:03:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-15 01:03:55,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2019-10-15 01:03:55,899 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 32 [2019-10-15 01:03:55,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:55,900 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2019-10-15 01:03:55,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:03:55,900 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2019-10-15 01:03:55,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-15 01:03:55,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:55,902 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:55,902 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:55,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:55,903 INFO L82 PathProgramCache]: Analyzing trace with hash 2051310963, now seen corresponding path program 1 times [2019-10-15 01:03:55,903 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:55,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52169618] [2019-10-15 01:03:55,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:55,904 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:55,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:56,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:56,029 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52169618] [2019-10-15 01:03:56,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:03:56,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:03:56,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710253967] [2019-10-15 01:03:56,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:03:56,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:56,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:03:56,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:56,032 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 4 states. [2019-10-15 01:03:56,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:56,087 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2019-10-15 01:03:56,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:03:56,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2019-10-15 01:03:56,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:56,089 INFO L225 Difference]: With dead ends: 67 [2019-10-15 01:03:56,089 INFO L226 Difference]: Without dead ends: 54 [2019-10-15 01:03:56,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:03:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-15 01:03:56,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2019-10-15 01:03:56,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-15 01:03:56,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2019-10-15 01:03:56,099 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 40 [2019-10-15 01:03:56,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:56,101 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2019-10-15 01:03:56,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:03:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2019-10-15 01:03:56,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-15 01:03:56,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:03:56,103 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:03:56,103 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:03:56,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:56,104 INFO L82 PathProgramCache]: Analyzing trace with hash -121828803, now seen corresponding path program 1 times [2019-10-15 01:03:56,105 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:03:56,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048200555] [2019-10-15 01:03:56,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:56,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:03:56,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:03:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:56,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048200555] [2019-10-15 01:03:56,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403833192] [2019-10-15 01:03:56,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:03:56,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 01:03:56,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:03:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:56,508 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:03:56,575 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:03:56,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [639249939] [2019-10-15 01:03:56,582 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 49 [2019-10-15 01:03:56,625 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:03:56,626 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:03:56,696 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:03:56,698 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-10-15 01:03:56,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:03:56,703 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:03:56,752 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 86.04% of their original sizes. [2019-10-15 01:03:56,753 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:03:56,802 INFO L553 sIntCurrentIteration]: We unified 47 AI predicates to 47 [2019-10-15 01:03:56,803 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:03:56,804 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:03:56,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5] total 12 [2019-10-15 01:03:56,805 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356037717] [2019-10-15 01:03:56,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:03:56,807 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:03:56,808 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:03:56,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:03:56,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:03:56,809 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand 6 states. [2019-10-15 01:03:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:03:56,843 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2019-10-15 01:03:56,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:03:56,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2019-10-15 01:03:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:03:56,844 INFO L225 Difference]: With dead ends: 46 [2019-10-15 01:03:56,844 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:03:56,845 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:03:56,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:03:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:03:56,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:03:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:03:56,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2019-10-15 01:03:56,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:03:56,849 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:03:56,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:03:56,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:03:56,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:03:57,057 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:03:57,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:03:57,181 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:57,182 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:57,182 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:57,182 INFO L446 ceAbstractionStarter]: At program point L561(line 561) the Hoare annotation is: true [2019-10-15 01:03:57,183 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 560 562) the Hoare annotation is: true [2019-10-15 01:03:57,183 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 560 562) no Hoare annotation was computed. [2019-10-15 01:03:57,183 INFO L443 ceAbstractionStarter]: For program point sll_circular_get_data_atEXIT(lines 595 601) no Hoare annotation was computed. [2019-10-15 01:03:57,183 INFO L446 ceAbstractionStarter]: At program point sll_circular_get_data_atENTRY(lines 595 601) the Hoare annotation is: true [2019-10-15 01:03:57,183 INFO L446 ceAbstractionStarter]: At program point L596-2(lines 596 599) the Hoare annotation is: true [2019-10-15 01:03:57,183 INFO L443 ceAbstractionStarter]: For program point L596-3(lines 596 599) no Hoare annotation was computed. [2019-10-15 01:03:57,184 INFO L443 ceAbstractionStarter]: For program point sll_circular_get_data_atFINAL(lines 595 601) no Hoare annotation was computed. [2019-10-15 01:03:57,184 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:57,184 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:57,184 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-15 01:03:57,184 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:57,184 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:57,185 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-15 01:03:57,185 INFO L439 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: (or (not (= |sll_circular_create_#in~len| 2)) (not (= |sll_circular_create_#in~data| 1))) [2019-10-15 01:03:57,185 INFO L443 ceAbstractionStarter]: For program point L576-1(line 576) no Hoare annotation was computed. [2019-10-15 01:03:57,186 INFO L439 ceAbstractionStarter]: At program point L573(line 573) the Hoare annotation is: (or (not (= |sll_circular_create_#in~len| 2)) (not (= |sll_circular_create_#in~data| 1)) (and (= sll_circular_create_~data 1) (= sll_circular_create_~len 2))) [2019-10-15 01:03:57,186 INFO L439 ceAbstractionStarter]: At program point L575-2(lines 575 580) the Hoare annotation is: (or (not (= |sll_circular_create_#in~len| 2)) (not (= |sll_circular_create_#in~data| 1))) [2019-10-15 01:03:57,186 INFO L443 ceAbstractionStarter]: For program point L573-1(line 573) no Hoare annotation was computed. [2019-10-15 01:03:57,186 INFO L443 ceAbstractionStarter]: For program point L575-3(lines 575 580) no Hoare annotation was computed. [2019-10-15 01:03:57,186 INFO L446 ceAbstractionStarter]: At program point sll_circular_createENTRY(lines 572 583) the Hoare annotation is: true [2019-10-15 01:03:57,187 INFO L443 ceAbstractionStarter]: For program point sll_circular_createFINAL(lines 572 583) no Hoare annotation was computed. [2019-10-15 01:03:57,187 INFO L443 ceAbstractionStarter]: For program point sll_circular_createEXIT(lines 572 583) no Hoare annotation was computed. [2019-10-15 01:03:57,187 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:03:57,187 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:03:57,187 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:03:57,187 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:03:57,188 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 626) no Hoare annotation was computed. [2019-10-15 01:03:57,188 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 609 628) no Hoare annotation was computed. [2019-10-15 01:03:57,188 INFO L443 ceAbstractionStarter]: For program point L624(line 624) no Hoare annotation was computed. [2019-10-15 01:03:57,188 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 609 628) no Hoare annotation was computed. [2019-10-15 01:03:57,188 INFO L439 ceAbstractionStarter]: At program point L620(line 620) the Hoare annotation is: false [2019-10-15 01:03:57,189 INFO L443 ceAbstractionStarter]: For program point L620-1(line 620) no Hoare annotation was computed. [2019-10-15 01:03:57,190 INFO L443 ceAbstractionStarter]: For program point L620-2(lines 620 622) no Hoare annotation was computed. [2019-10-15 01:03:57,190 INFO L439 ceAbstractionStarter]: At program point L616(line 616) the Hoare annotation is: false [2019-10-15 01:03:57,190 INFO L443 ceAbstractionStarter]: For program point L618-2(lines 618 623) no Hoare annotation was computed. [2019-10-15 01:03:57,190 INFO L443 ceAbstractionStarter]: For program point L616-1(lines 614 617) no Hoare annotation was computed. [2019-10-15 01:03:57,191 INFO L439 ceAbstractionStarter]: At program point L618-3(lines 618 623) the Hoare annotation is: false [2019-10-15 01:03:57,191 INFO L446 ceAbstractionStarter]: At program point L618-4(lines 618 623) the Hoare annotation is: true [2019-10-15 01:03:57,191 INFO L439 ceAbstractionStarter]: At program point L612(line 612) the Hoare annotation is: (and (= main_~data~0 1) (= main_~len~0 2)) [2019-10-15 01:03:57,192 INFO L439 ceAbstractionStarter]: At program point L614-2(lines 614 617) the Hoare annotation is: false [2019-10-15 01:03:57,192 INFO L443 ceAbstractionStarter]: For program point L612-1(line 612) no Hoare annotation was computed. [2019-10-15 01:03:57,192 INFO L443 ceAbstractionStarter]: For program point L614-3(lines 614 617) no Hoare annotation was computed. [2019-10-15 01:03:57,192 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 609 628) the Hoare annotation is: true [2019-10-15 01:03:57,192 INFO L439 ceAbstractionStarter]: At program point L621(lines 609 628) the Hoare annotation is: false [2019-10-15 01:03:57,193 INFO L446 ceAbstractionStarter]: At program point sll_circular_destroyENTRY(lines 584 594) the Hoare annotation is: true [2019-10-15 01:03:57,193 INFO L443 ceAbstractionStarter]: For program point sll_circular_destroyEXIT(lines 584 594) no Hoare annotation was computed. [2019-10-15 01:03:57,193 INFO L443 ceAbstractionStarter]: For program point L585(lines 585 593) no Hoare annotation was computed. [2019-10-15 01:03:57,193 INFO L446 ceAbstractionStarter]: At program point L587-2(lines 587 591) the Hoare annotation is: true [2019-10-15 01:03:57,196 INFO L443 ceAbstractionStarter]: For program point L587-3(lines 587 591) no Hoare annotation was computed. [2019-10-15 01:03:57,196 INFO L443 ceAbstractionStarter]: For program point L585-2(lines 584 594) no Hoare annotation was computed. [2019-10-15 01:03:57,197 INFO L443 ceAbstractionStarter]: For program point sll_circular_update_atEXIT(lines 602 608) no Hoare annotation was computed. [2019-10-15 01:03:57,197 INFO L446 ceAbstractionStarter]: At program point sll_circular_update_atENTRY(lines 602 608) the Hoare annotation is: true [2019-10-15 01:03:57,197 INFO L443 ceAbstractionStarter]: For program point sll_circular_update_atFINAL(lines 602 608) no Hoare annotation was computed. [2019-10-15 01:03:57,197 INFO L446 ceAbstractionStarter]: At program point L603-2(lines 603 606) the Hoare annotation is: true [2019-10-15 01:03:57,197 INFO L443 ceAbstractionStarter]: For program point L603-3(lines 603 606) no Hoare annotation was computed. [2019-10-15 01:03:57,198 INFO L446 ceAbstractionStarter]: At program point node_createENTRY(lines 563 571) the Hoare annotation is: true [2019-10-15 01:03:57,198 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 563 571) no Hoare annotation was computed. [2019-10-15 01:03:57,198 INFO L446 ceAbstractionStarter]: At program point L566(line 566) the Hoare annotation is: true [2019-10-15 01:03:57,202 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 563 571) no Hoare annotation was computed. [2019-10-15 01:03:57,202 INFO L443 ceAbstractionStarter]: For program point L565(lines 565 567) no Hoare annotation was computed. [2019-10-15 01:03:57,202 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 565 567) no Hoare annotation was computed. [2019-10-15 01:03:57,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:03:57 BoogieIcfgContainer [2019-10-15 01:03:57,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:03:57,229 INFO L168 Benchmark]: Toolchain (without parser) took 3547.11 ms. Allocated memory was 135.3 MB in the beginning and 226.5 MB in the end (delta: 91.2 MB). Free memory was 98.4 MB in the beginning and 75.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 114.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:57,233 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:03:57,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.13 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.2 MB in the beginning and 162.9 MB in the end (delta: -64.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:57,239 INFO L168 Benchmark]: Boogie Preprocessor took 99.18 ms. Allocated memory is still 199.8 MB. Free memory was 162.9 MB in the beginning and 159.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:57,244 INFO L168 Benchmark]: RCFGBuilder took 729.90 ms. Allocated memory is still 199.8 MB. Free memory was 159.6 MB in the beginning and 110.8 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:57,245 INFO L168 Benchmark]: TraceAbstraction took 2104.40 ms. Allocated memory was 199.8 MB in the beginning and 226.5 MB in the end (delta: 26.7 MB). Free memory was 110.1 MB in the beginning and 75.0 MB in the end (delta: 35.1 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:03:57,254 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 606.13 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 98.2 MB in the beginning and 162.9 MB in the end (delta: -64.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.18 ms. Allocated memory is still 199.8 MB. Free memory was 162.9 MB in the beginning and 159.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 729.90 ms. Allocated memory is still 199.8 MB. Free memory was 159.6 MB in the beginning and 110.8 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2104.40 ms. Allocated memory was 199.8 MB in the beginning and 226.5 MB in the end (delta: 26.7 MB). Free memory was 110.1 MB in the beginning and 75.0 MB in the end (delta: 35.1 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 626]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: !(\old(len) == 2) || !(\old(data) == 1) - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 609]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 162 SDtfs, 32 SDslu, 208 SDs, 0 SdLazy, 39 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 39 PreInvPairs, 40 NumberOfFragments, 62 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 242 ConstructedInterpolants, 0 QuantifiedInterpolants, 14372 SizeOfPredicates, 2 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 24/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 121, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.951241134751773, AVG_VARS_REMOVED_DURING_WEAKENING: 1.3404255319148937, AVG_WEAKENED_CONJUNCTS: 0.5106382978723404, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...