/usr/bin/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-fb55353 [2019-11-06 22:59:39,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:59:39,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:59:39,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:59:39,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:59:39,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:59:39,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:59:39,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:59:39,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:59:39,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:59:39,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:59:39,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:59:39,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:59:39,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:59:39,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:59:39,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:59:39,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:59:39,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:59:39,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:59:39,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:59:39,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:59:39,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:59:39,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:59:39,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:59:39,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:59:39,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:59:39,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:59:39,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:59:39,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:59:39,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:59:39,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:59:39,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:59:39,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:59:39,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:59:39,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:59:39,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:59:39,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:59:39,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:59:39,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:59:39,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:59:39,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:59:39,732 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 [2019-11-06 22:59:39,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:59:39,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:59:39,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:59:39,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:59:39,747 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:59:39,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:59:39,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:59:39,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:59:39,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:59:39,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:59:39,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:59:39,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:59:39,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:59:39,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:59:39,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:59:39,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:59:39,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:59:39,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:59:39,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:59:39,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:59:39,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:59:39,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:59:39,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:59:39,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:59:39,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:59:39,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:59:39,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:59:39,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:59:39,752 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 [2019-11-06 22:59:40,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:59:40,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:59:40,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:59:40,050 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:59:40,051 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:59:40,052 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/shared_mem2.i [2019-11-06 22:59:40,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8026d24/26c33d5f60ad41709c1a22bb8efbc99f/FLAG03967af74 [2019-11-06 22:59:40,696 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:59:40,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/shared_mem2.i [2019-11-06 22:59:40,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8026d24/26c33d5f60ad41709c1a22bb8efbc99f/FLAG03967af74 [2019-11-06 22:59:40,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8026d24/26c33d5f60ad41709c1a22bb8efbc99f [2019-11-06 22:59:40,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:59:40,981 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:59:40,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:59:40,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:59:40,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:59:40,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:40" (1/1) ... [2019-11-06 22:59:40,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1172a0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:40, skipping insertion in model container [2019-11-06 22:59:40,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:40" (1/1) ... [2019-11-06 22:59:40,999 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:59:41,040 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:59:41,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:59:41,492 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:59:41,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:59:41,587 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:59:41,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41 WrapperNode [2019-11-06 22:59:41,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:59:41,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:59:41,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:59:41,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:59:41,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (1/1) ... [2019-11-06 22:59:41,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (1/1) ... [2019-11-06 22:59:41,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (1/1) ... [2019-11-06 22:59:41,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (1/1) ... [2019-11-06 22:59:41,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (1/1) ... [2019-11-06 22:59:41,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (1/1) ... [2019-11-06 22:59:41,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (1/1) ... [2019-11-06 22:59:41,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:59:41,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:59:41,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:59:41,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:59:41,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (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 [2019-11-06 22:59:41,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:59:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:59:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-06 22:59:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-06 22:59:41,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:59:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:59:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:59:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-06 22:59:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-06 22:59:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-06 22:59:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-06 22:59:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-06 22:59:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-06 22:59:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-06 22:59:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-06 22:59:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-06 22:59:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-06 22:59:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-06 22:59:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-06 22:59:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-06 22:59:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-06 22:59:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-06 22:59:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-06 22:59:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-06 22:59:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-06 22:59:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-06 22:59:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-06 22:59:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-06 22:59:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-06 22:59:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-06 22:59:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-06 22:59:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-06 22:59:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-06 22:59:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-06 22:59:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-06 22:59:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-06 22:59:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:59:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 22:59:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-06 22:59:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:59:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-06 22:59:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-06 22:59:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-06 22:59:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-06 22:59:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-06 22:59:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-06 22:59:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-06 22:59:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-06 22:59:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-06 22:59:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 22:59:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-06 22:59:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-06 22:59:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-06 22:59:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-06 22:59:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-06 22:59:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-06 22:59:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-06 22:59:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-06 22:59:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-06 22:59:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-06 22:59:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-06 22:59:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-06 22:59:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-06 22:59:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-06 22:59:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-06 22:59:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-06 22:59:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-06 22:59:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-06 22:59:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-06 22:59:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-06 22:59:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-06 22:59:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-06 22:59:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-06 22:59:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-06 22:59:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-06 22:59:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-06 22:59:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-06 22:59:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-06 22:59:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-06 22:59:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-06 22:59:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-06 22:59:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-06 22:59:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-06 22:59:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-06 22:59:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-06 22:59:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-06 22:59:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-06 22:59:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-06 22:59:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-06 22:59:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:59:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:59:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:59:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:59:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:59:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:59:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:59:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:59:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:59:42,273 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:59:42,273 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-06 22:59:42,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:42 BoogieIcfgContainer [2019-11-06 22:59:42,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:59:42,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:59:42,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:59:42,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:59:42,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:59:40" (1/3) ... [2019-11-06 22:59:42,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504627fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:42, skipping insertion in model container [2019-11-06 22:59:42,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:41" (2/3) ... [2019-11-06 22:59:42,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504627fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:42, skipping insertion in model container [2019-11-06 22:59:42,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:42" (3/3) ... [2019-11-06 22:59:42,286 INFO L109 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2019-11-06 22:59:42,298 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:59:42,307 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:59:42,321 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:59:42,358 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:59:42,358 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:59:42,358 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:59:42,359 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:59:42,359 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:59:42,359 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:59:42,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:59:42,368 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:59:42,390 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-06 22:59:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-06 22:59:42,397 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:59:42,398 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:59:42,401 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:59:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:42,407 INFO L82 PathProgramCache]: Analyzing trace with hash 976014476, now seen corresponding path program 1 times [2019-11-06 22:59:42,419 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:59:42,420 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537944555] [2019-11-06 22:59:42,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:59:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:42,592 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537944555] [2019-11-06 22:59:42,593 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:59:42,593 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:59:42,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952534518] [2019-11-06 22:59:42,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:59:42,612 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:59:42,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:59:42,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:59:42,634 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-11-06 22:59:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:59:42,657 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-06 22:59:42,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:59:42,659 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-06 22:59:42,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:59:42,669 INFO L225 Difference]: With dead ends: 35 [2019-11-06 22:59:42,669 INFO L226 Difference]: Without dead ends: 18 [2019-11-06 22:59:42,673 INFO L630 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 [2019-11-06 22:59:42,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-06 22:59:42,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-06 22:59:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-06 22:59:42,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-06 22:59:42,717 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-11-06 22:59:42,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:59:42,718 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-06 22:59:42,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:59:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-06 22:59:42,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-06 22:59:42,719 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:59:42,719 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:59:42,720 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:59:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:42,721 INFO L82 PathProgramCache]: Analyzing trace with hash 2140991581, now seen corresponding path program 1 times [2019-11-06 22:59:42,721 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:59:42,722 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976220092] [2019-11-06 22:59:42,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:59:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:42,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:42,910 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976220092] [2019-11-06 22:59:42,910 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:59:42,910 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 22:59:42,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920977907] [2019-11-06 22:59:42,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 22:59:42,913 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:59:42,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 22:59:42,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 22:59:42,913 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2019-11-06 22:59:42,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:59:42,998 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-11-06 22:59:42,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:59:42,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-06 22:59:43,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:59:43,014 INFO L225 Difference]: With dead ends: 30 [2019-11-06 22:59:43,015 INFO L226 Difference]: Without dead ends: 26 [2019-11-06 22:59:43,018 INFO L630 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 [2019-11-06 22:59:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-06 22:59:43,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-06 22:59:43,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-06 22:59:43,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-11-06 22:59:43,025 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 14 [2019-11-06 22:59:43,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:59:43,025 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-11-06 22:59:43,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 22:59:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-11-06 22:59:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:59:43,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:59:43,026 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:59:43,026 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:59:43,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:43,027 INFO L82 PathProgramCache]: Analyzing trace with hash -295797189, now seen corresponding path program 1 times [2019-11-06 22:59:43,027 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:59:43,027 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816241050] [2019-11-06 22:59:43,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:59:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:43,193 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816241050] [2019-11-06 22:59:43,194 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126107406] [2019-11-06 22:59:43,194 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 [2019-11-06 22:59:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:59:43,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-06 22:59:43,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:59:43,423 INFO L341 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-11-06 22:59:43,424 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 [2019-11-06 22:59:43,425 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:43,446 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,453 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_24|], 2=[|v_#memory_int_21|]} [2019-11-06 22:59:43,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-06 22:59:43,489 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 [2019-11-06 22:59:43,489 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:43,517 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,539 INFO L341 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2019-11-06 22:59:43,539 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 [2019-11-06 22:59:43,540 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:43,554 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,556 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. [2019-11-06 22:59:43,557 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:75, output treesize:29 [2019-11-06 22:59:43,640 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,641 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 [2019-11-06 22:59:43,642 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:43,682 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,686 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_22|, |v_#memory_int_23|], 10=[|v_#memory_int_25|]} [2019-11-06 22:59:43,694 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:43,737 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,743 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:43,773 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,836 INFO L341 Elim1Store]: treesize reduction 90, result has 25.0 percent of original size [2019-11-06 22:59:43,837 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 [2019-11-06 22:59:43,839 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-06 22:59:43,865 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 22:59:43,872 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. [2019-11-06 22:59:43,874 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:94, output treesize:7 [2019-11-06 22:59:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:43,908 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:59:43,952 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:43,974 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,978 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:43,996 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:43,999 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-06 22:59:44,011 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-06 22:59:44,012 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. [2019-11-06 22:59:44,012 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:77, output treesize:60 [2019-11-06 22:59:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:59:44,072 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [507130731] [2019-11-06 22:59:44,083 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-11-06 22:59:44,130 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:59:44,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:59:44,208 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:59:44,211 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. [2019-11-06 22:59:44,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:59:44,215 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:59:44,247 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:59:44,247 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:59:44,249 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-11-06 22:59:44,249 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:59:44,250 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:59:44,250 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6, 5, 5] total 11 [2019-11-06 22:59:44,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723450788] [2019-11-06 22:59:44,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:59:44,252 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:59:44,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:59:44,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:59:44,253 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 2 states. [2019-11-06 22:59:44,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:59:44,255 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-11-06 22:59:44,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:59:44,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-11-06 22:59:44,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:59:44,256 INFO L225 Difference]: With dead ends: 26 [2019-11-06 22:59:44,256 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:59:44,257 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:59:44,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:59:44,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:59:44,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:59:44,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:59:44,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-06 22:59:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:59:44,258 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:59:44,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:59:44,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:59:44,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:59:44,464 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:59:44,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:59:44,499 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:59:44,499 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:59:44,500 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:59:44,500 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 64 68) no Hoare annotation was computed. [2019-11-06 22:59:44,500 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 64 68) no Hoare annotation was computed. [2019-11-06 22:59:44,500 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 64 68) no Hoare annotation was computed. [2019-11-06 22:59:44,500 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 69 73) no Hoare annotation was computed. [2019-11-06 22:59:44,500 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 69 73) no Hoare annotation was computed. [2019-11-06 22:59:44,501 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 69 73) no Hoare annotation was computed. [2019-11-06 22:59:44,501 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:59:44,501 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:59:44,501 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:59:44,501 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:59:44,501 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 565 591) no Hoare annotation was computed. [2019-11-06 22:59:44,501 INFO L443 ceAbstractionStarter]: For program point L589(lines 589 590) no Hoare annotation was computed. [2019-11-06 22:59:44,502 INFO L443 ceAbstractionStarter]: For program point L589-2(lines 565 591) no Hoare annotation was computed. [2019-11-06 22:59:44,502 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2019-11-06 22:59:44,502 INFO L443 ceAbstractionStarter]: For program point L585(lines 585 586) no Hoare annotation was computed. [2019-11-06 22:59:44,502 INFO L443 ceAbstractionStarter]: For program point L585-2(lines 585 586) no Hoare annotation was computed. [2019-11-06 22:59:44,502 INFO L443 ceAbstractionStarter]: For program point L575(lines 575 581) no Hoare annotation was computed. [2019-11-06 22:59:44,502 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 565 591) the Hoare annotation is: true [2019-11-06 22:59:44,503 INFO L439 ceAbstractionStarter]: At program point L575-2(lines 573 582) the Hoare annotation is: false [2019-11-06 22:59:44,503 INFO L443 ceAbstractionStarter]: For program point L573-1(lines 573 582) no Hoare annotation was computed. [2019-11-06 22:59:44,503 INFO L443 ceAbstractionStarter]: For program point L573-3(lines 573 582) no Hoare annotation was computed. [2019-11-06 22:59:44,503 INFO L443 ceAbstractionStarter]: For program point L590(line 590) no Hoare annotation was computed. [2019-11-06 22:59:44,503 INFO L443 ceAbstractionStarter]: For program point L584-1(lines 584 588) no Hoare annotation was computed. [2019-11-06 22:59:44,503 INFO L439 ceAbstractionStarter]: At program point L584-3(lines 584 588) the Hoare annotation is: false [2019-11-06 22:59:44,504 INFO L443 ceAbstractionStarter]: For program point L584-4(lines 584 588) no Hoare annotation was computed. [2019-11-06 22:59:44,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:59:44 BoogieIcfgContainer [2019-11-06 22:59:44,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:59:44,515 INFO L168 Benchmark]: Toolchain (without parser) took 3533.55 ms. Allocated memory was 138.4 MB in the beginning and 235.9 MB in the end (delta: 97.5 MB). Free memory was 102.1 MB in the beginning and 89.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:44,516 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:59:44,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.25 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 169.5 MB in the end (delta: -67.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:44,518 INFO L168 Benchmark]: Boogie Preprocessor took 69.10 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 166.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:44,519 INFO L168 Benchmark]: RCFGBuilder took 616.86 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 124.0 MB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:44,520 INFO L168 Benchmark]: TraceAbstraction took 2236.32 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 123.4 MB in the beginning and 89.4 MB in the end (delta: 33.9 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:59:44,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 606.25 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 169.5 MB in the end (delta: -67.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.10 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 166.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 616.86 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 124.0 MB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2236.32 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 123.4 MB in the beginning and 89.4 MB in the end (delta: 33.9 MB). Peak memory consumption was 67.5 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, 47 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s 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, 0.9s 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]: 132, 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...