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/heap-data/shared_mem2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:12:28,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:12:28,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:12:28,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:12:28,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:12:28,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:12:28,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:12:28,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:12:28,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:12:28,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:12:28,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:12:28,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:12:28,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:12:28,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:12:28,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:12:28,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:12:28,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:12:28,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:12:28,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:12:28,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:12:28,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:12:28,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:12:28,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:12:28,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:12:28,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:12:28,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:12:28,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:12:28,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:12:28,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:12:28,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:12:28,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:12:28,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:12:28,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:12:28,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:12:28,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:12:28,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:12:28,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:12:28,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:12:28,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:12:28,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:12:28,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:12:28,668 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 [2019-10-13 20:12:28,683 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:12:28,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:12:28,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:12:28,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:12:28,685 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:12:28,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:12:28,685 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:12:28,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:12:28,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:12:28,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:12:28,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:12:28,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:12:28,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:12:28,686 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:12:28,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:12:28,687 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:12:28,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:12:28,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:12:28,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:12:28,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:12:28,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:12:28,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:12:28,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:12:28,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:12:28,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:12:28,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:12:28,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:12:28,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:12:28,689 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 [2019-10-13 20:12:28,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:12:28,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:12:28,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:12:28,996 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:12:28,996 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:12:28,997 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem2.i [2019-10-13 20:12:29,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fc67aef/237527e2409945baba8dfdcdbb54365c/FLAG169ba0a1c [2019-10-13 20:12:29,639 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:12:29,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem2.i [2019-10-13 20:12:29,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fc67aef/237527e2409945baba8dfdcdbb54365c/FLAG169ba0a1c [2019-10-13 20:12:29,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fc67aef/237527e2409945baba8dfdcdbb54365c [2019-10-13 20:12:29,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:12:29,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:12:29,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:29,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:12:29,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:12:29,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:29" (1/1) ... [2019-10-13 20:12:29,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5563fd17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:29, skipping insertion in model container [2019-10-13 20:12:29,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:12:29" (1/1) ... [2019-10-13 20:12:29,923 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:12:29,972 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:12:30,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:30,475 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:12:30,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:12:30,575 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:12:30,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30 WrapperNode [2019-10-13 20:12:30,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:12:30,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:12:30,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:12:30,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:12:30,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (1/1) ... [2019-10-13 20:12:30,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (1/1) ... [2019-10-13 20:12:30,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (1/1) ... [2019-10-13 20:12:30,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (1/1) ... [2019-10-13 20:12:30,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (1/1) ... [2019-10-13 20:12:30,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (1/1) ... [2019-10-13 20:12:30,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (1/1) ... [2019-10-13 20:12:30,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:12:30,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:12:30,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:12:30,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:12:30,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (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 [2019-10-13 20:12:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:12:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:12:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 20:12:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 20:12:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:12:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:12:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:12:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 20:12:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 20:12:30,701 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 20:12:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 20:12:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 20:12:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 20:12:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 20:12:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 20:12:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 20:12:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 20:12:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 20:12:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 20:12:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 20:12:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 20:12:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 20:12:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 20:12:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 20:12:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 20:12:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 20:12:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 20:12:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 20:12:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 20:12:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 20:12:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 20:12:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 20:12:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 20:12:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 20:12:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 20:12:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 20:12:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 20:12:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 20:12:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 20:12:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 20:12:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 20:12:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 20:12:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 20:12:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 20:12:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 20:12:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 20:12:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 20:12:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 20:12:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 20:12:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 20:12:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 20:12:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 20:12:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 20:12:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 20:12:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 20:12:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 20:12:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 20:12:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 20:12:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 20:12:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:12:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:12:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 20:12:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:12:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 20:12:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 20:12:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 20:12:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 20:12:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 20:12:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 20:12:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 20:12:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 20:12:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 20:12:30,716 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 20:12:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 20:12:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 20:12:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 20:12:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 20:12:30,717 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 20:12:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 20:12:30,718 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 20:12:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 20:12:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 20:12:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 20:12:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 20:12:30,719 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 20:12:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 20:12:30,720 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 20:12:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 20:12:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 20:12:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 20:12:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 20:12:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 20:12:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 20:12:30,722 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 20:12:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 20:12:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 20:12:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 20:12:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 20:12:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 20:12:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 20:12:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 20:12:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 20:12:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 20:12:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 20:12:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 20:12:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 20:12:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 20:12:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 20:12:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 20:12:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 20:12:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 20:12:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 20:12:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:12:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:12:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:12:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:12:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:12:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:12:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:12:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:12:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:12:31,301 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:12:31,302 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 20:12:31,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:31 BoogieIcfgContainer [2019-10-13 20:12:31,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:12:31,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:12:31,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:12:31,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:12:31,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:12:29" (1/3) ... [2019-10-13 20:12:31,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741acfb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:31, skipping insertion in model container [2019-10-13 20:12:31,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:12:30" (2/3) ... [2019-10-13 20:12:31,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741acfb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:12:31, skipping insertion in model container [2019-10-13 20:12:31,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:12:31" (3/3) ... [2019-10-13 20:12:31,314 INFO L109 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2019-10-13 20:12:31,325 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:12:31,334 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:12:31,348 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:12:31,389 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:12:31,389 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:12:31,389 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:12:31,389 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:12:31,390 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:12:31,391 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:12:31,391 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:12:31,399 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:12:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-13 20:12:31,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 20:12:31,431 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:31,432 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:31,437 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:31,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:31,444 INFO L82 PathProgramCache]: Analyzing trace with hash 976014476, now seen corresponding path program 1 times [2019-10-13 20:12:31,456 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:31,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402334889] [2019-10-13 20:12:31,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:31,458 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:31,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:31,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402334889] [2019-10-13 20:12:31,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:31,639 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 20:12:31,639 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293155351] [2019-10-13 20:12:31,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 20:12:31,646 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:31,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 20:12:31,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:31,669 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-10-13 20:12:31,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:31,697 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-10-13 20:12:31,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 20:12:31,699 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-13 20:12:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:31,710 INFO L225 Difference]: With dead ends: 35 [2019-10-13 20:12:31,710 INFO L226 Difference]: Without dead ends: 18 [2019-10-13 20:12:31,717 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 [2019-10-13 20:12:31,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-13 20:12:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-13 20:12:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-13 20:12:31,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-10-13 20:12:31,769 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-10-13 20:12:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:31,770 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-10-13 20:12:31,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 20:12:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-10-13 20:12:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 20:12:31,771 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:31,772 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:31,772 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:31,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:31,774 INFO L82 PathProgramCache]: Analyzing trace with hash 2140991581, now seen corresponding path program 1 times [2019-10-13 20:12:31,774 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:31,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359561942] [2019-10-13 20:12:31,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:31,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:31,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:31,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359561942] [2019-10-13 20:12:31,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:12:31,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:12:31,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127326851] [2019-10-13 20:12:31,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:12:31,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:31,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:12:31,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:12:31,938 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2019-10-13 20:12:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:32,027 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-10-13 20:12:32,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 20:12:32,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-13 20:12:32,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:32,030 INFO L225 Difference]: With dead ends: 30 [2019-10-13 20:12:32,030 INFO L226 Difference]: Without dead ends: 26 [2019-10-13 20:12:32,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:12:32,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-13 20:12:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-13 20:12:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-13 20:12:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-10-13 20:12:32,053 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 14 [2019-10-13 20:12:32,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:32,053 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-10-13 20:12:32,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:12:32,054 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-10-13 20:12:32,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 20:12:32,055 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:12:32,055 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:12:32,056 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:12:32,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:32,057 INFO L82 PathProgramCache]: Analyzing trace with hash -295797189, now seen corresponding path program 1 times [2019-10-13 20:12:32,057 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:12:32,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478282564] [2019-10-13 20:12:32,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:32,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:12:32,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:12:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:32,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478282564] [2019-10-13 20:12:32,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112594299] [2019-10-13 20:12:32,234 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 [2019-10-13 20:12:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:12:32,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-13 20:12:32,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:12:32,524 INFO L341 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-10-13 20:12:32,524 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2019-10-13 20:12:32,525 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,555 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,562 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_24|], 2=[|v_#memory_int_21|]} [2019-10-13 20:12:32,574 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 20:12:32,586 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2019-10-13 20:12:32,587 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,612 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,635 INFO L341 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2019-10-13 20:12:32,636 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 21 [2019-10-13 20:12:32,637 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,648 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,650 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:32,650 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:75, output treesize:29 [2019-10-13 20:12:32,729 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,730 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2019-10-13 20:12:32,731 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,778 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_22|, |v_#memory_int_23|], 10=[|v_#memory_int_25|]} [2019-10-13 20:12:32,786 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:32,831 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,843 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:32,879 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,936 INFO L341 Elim1Store]: treesize reduction 90, result has 25.0 percent of original size [2019-10-13 20:12:32,936 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 52 [2019-10-13 20:12:32,938 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,964 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:32,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 20:12:32,974 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 20:12:32,979 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:94, output treesize:7 [2019-10-13 20:12:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:33,010 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:12:33,051 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,073 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:33,078 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,098 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:33,102 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,111 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 20:12:33,112 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-10-13 20:12:33,113 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:77, output treesize:60 [2019-10-13 20:12:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:12:33,161 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [2052113342] [2019-10-13 20:12:33,168 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-10-13 20:12:33,213 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 20:12:33,213 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 20:12:33,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 20:12:33,276 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 35 variables. [2019-10-13 20:12:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:12:33,280 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 20:12:33,316 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 20:12:33,317 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 20:12:33,318 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-10-13 20:12:33,318 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 20:12:33,319 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 20:12:33,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 5, 5] total 11 [2019-10-13 20:12:33,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837278248] [2019-10-13 20:12:33,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 20:12:33,320 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 20:12:33,321 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 20:12:33,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 20:12:33,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:33,321 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 2 states. [2019-10-13 20:12:33,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:12:33,323 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-10-13 20:12:33,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 20:12:33,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-13 20:12:33,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:12:33,324 INFO L225 Difference]: With dead ends: 26 [2019-10-13 20:12:33,324 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:12:33,324 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 20:12:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:12:33,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:12:33,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:12:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:12:33,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-13 20:12:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:12:33,325 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:12:33,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 20:12:33,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:12:33,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:12:33,532 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:12:33,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:12:33,560 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:33,561 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:33,561 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:33,561 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-10-13 20:12:33,561 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-10-13 20:12:33,561 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-10-13 20:12:33,561 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-10-13 20:12:33,562 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-10-13 20:12:33,562 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-10-13 20:12:33,562 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 20:12:33,562 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 20:12:33,562 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 20:12:33,562 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 20:12:33,562 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 565 591) no Hoare annotation was computed. [2019-10-13 20:12:33,563 INFO L443 ceAbstractionStarter]: For program point L589(lines 589 590) no Hoare annotation was computed. [2019-10-13 20:12:33,563 INFO L443 ceAbstractionStarter]: For program point L589-2(lines 565 591) no Hoare annotation was computed. [2019-10-13 20:12:33,563 INFO L443 ceAbstractionStarter]: For program point L585(lines 585 586) no Hoare annotation was computed. [2019-10-13 20:12:33,563 INFO L443 ceAbstractionStarter]: For program point L585-2(lines 585 586) no Hoare annotation was computed. [2019-10-13 20:12:33,563 INFO L443 ceAbstractionStarter]: For program point L575(lines 575 581) no Hoare annotation was computed. [2019-10-13 20:12:33,563 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 565 591) the Hoare annotation is: true [2019-10-13 20:12:33,564 INFO L439 ceAbstractionStarter]: At program point L575-2(lines 573 582) the Hoare annotation is: false [2019-10-13 20:12:33,564 INFO L443 ceAbstractionStarter]: For program point L573-1(lines 573 582) no Hoare annotation was computed. [2019-10-13 20:12:33,564 INFO L443 ceAbstractionStarter]: For program point L573-3(lines 573 582) no Hoare annotation was computed. [2019-10-13 20:12:33,564 INFO L443 ceAbstractionStarter]: For program point L590(line 590) no Hoare annotation was computed. [2019-10-13 20:12:33,564 INFO L443 ceAbstractionStarter]: For program point L584-1(lines 584 588) no Hoare annotation was computed. [2019-10-13 20:12:33,564 INFO L439 ceAbstractionStarter]: At program point L584-3(lines 584 588) the Hoare annotation is: false [2019-10-13 20:12:33,565 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2019-10-13 20:12:33,565 INFO L443 ceAbstractionStarter]: For program point L584-4(lines 584 588) no Hoare annotation was computed. [2019-10-13 20:12:33,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:12:33 BoogieIcfgContainer [2019-10-13 20:12:33,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 20:12:33,578 INFO L168 Benchmark]: Toolchain (without parser) took 3670.30 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 102.3 MB in the beginning and 88.4 MB in the end (delta: 13.9 MB). Peak memory consumption was 103.1 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:33,581 INFO L168 Benchmark]: CDTParser took 1.23 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 20:12:33,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.34 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 168.0 MB in the end (delta: -66.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:33,594 INFO L168 Benchmark]: Boogie Preprocessor took 60.88 ms. Allocated memory is still 201.9 MB. Free memory was 168.0 MB in the beginning and 165.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:33,595 INFO L168 Benchmark]: RCFGBuilder took 666.00 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 122.4 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:33,596 INFO L168 Benchmark]: TraceAbstraction took 2269.90 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 122.4 MB in the beginning and 88.4 MB in the end (delta: 34.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2019-10-13 20:12:33,603 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.34 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 101.9 MB in the beginning and 168.0 MB in the end (delta: -66.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.88 ms. Allocated memory is still 201.9 MB. Free memory was 168.0 MB in the beginning and 165.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 666.00 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 122.4 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2269.90 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 122.4 MB in the beginning and 88.4 MB in the end (delta: 34.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 590]: 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: 573]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 13 SDslu, 31 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 6 QuantifiedInterpolants, 8503 SizeOfPredicates, 14 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 113, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.84375, AVG_VARS_REMOVED_DURING_WEAKENING: 1.3125, AVG_WEAKENED_CONJUNCTS: 0.375, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...