./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30390fe155d7f123b603151bf2b8a7453d49cf9d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:43:20,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:43:20,691 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:43:20,713 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:43:20,713 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:43:20,714 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:43:20,715 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:43:20,718 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:43:20,719 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:43:20,720 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:43:20,721 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:43:20,721 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:43:20,723 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:43:20,724 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:43:20,725 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:43:20,726 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:43:20,726 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:43:20,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:43:20,729 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:43:20,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:43:20,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:43:20,742 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:43:20,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:43:20,744 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:43:20,744 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:43:20,745 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:43:20,745 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:43:20,751 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:43:20,752 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:43:20,752 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:43:20,752 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:43:20,753 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:43:20,753 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:43:20,753 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:43:20,754 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:43:20,754 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:43:20,755 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 19:43:20,766 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:43:20,766 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:43:20,767 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:43:20,767 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:43:20,767 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:43:20,767 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:43:20,768 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:43:20,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:43:20,768 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:43:20,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:43:20,768 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:43:20,768 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:43:20,768 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:43:20,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:43:20,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:43:20,769 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:43:20,769 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:43:20,769 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:43:20,769 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:43:20,771 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:43:20,771 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:43:20,772 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:43:20,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:43:20,772 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:43:20,772 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:43:20,772 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:43:20,772 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:43:20,772 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:43:20,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:43:20,773 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30390fe155d7f123b603151bf2b8a7453d49cf9d [2018-10-26 19:43:20,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:43:20,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:43:20,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:43:20,814 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:43:20,815 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:43:20,815 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-10-26 19:43:20,861 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/data/656dc193d/6161e9a0147f45f393409e610aa4e14e/FLAG3975a3ac0 [2018-10-26 19:43:21,321 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:43:21,330 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-10-26 19:43:21,343 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/data/656dc193d/6161e9a0147f45f393409e610aa4e14e/FLAG3975a3ac0 [2018-10-26 19:43:21,355 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/data/656dc193d/6161e9a0147f45f393409e610aa4e14e [2018-10-26 19:43:21,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:43:21,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:43:21,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:43:21,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:43:21,364 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:43:21,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:43:21" (1/1) ... [2018-10-26 19:43:21,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a669605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:21, skipping insertion in model container [2018-10-26 19:43:21,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:43:21" (1/1) ... [2018-10-26 19:43:21,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:43:21,423 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:43:21,800 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:43:21,810 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:43:21,901 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:43:22,073 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:43:22,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22 WrapperNode [2018-10-26 19:43:22,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:43:22,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:43:22,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:43:22,076 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:43:22,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... [2018-10-26 19:43:22,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... [2018-10-26 19:43:22,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... [2018-10-26 19:43:22,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... [2018-10-26 19:43:22,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... [2018-10-26 19:43:22,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... [2018-10-26 19:43:22,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... [2018-10-26 19:43:22,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:43:22,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:43:22,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:43:22,191 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:43:22,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:43:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:43:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:43:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-10-26 19:43:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-10-26 19:43:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-10-26 19:43:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-10-26 19:43:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-10-26 19:43:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-10-26 19:43:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-10-26 19:43:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-10-26 19:43:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-10-26 19:43:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-10-26 19:43:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-10-26 19:43:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-10-26 19:43:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-10-26 19:43:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-10-26 19:43:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:43:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:43:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-10-26 19:43:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-10-26 19:43:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-10-26 19:43:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-10-26 19:43:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-10-26 19:43:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-10-26 19:43:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-10-26 19:43:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-10-26 19:43:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-10-26 19:43:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-10-26 19:43:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-10-26 19:43:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-10-26 19:43:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-10-26 19:43:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-10-26 19:43:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-10-26 19:43:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-10-26 19:43:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-10-26 19:43:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-10-26 19:43:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-10-26 19:43:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-10-26 19:43:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-10-26 19:43:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-10-26 19:43:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-10-26 19:43:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-10-26 19:43:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-10-26 19:43:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-10-26 19:43:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-10-26 19:43:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-10-26 19:43:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-10-26 19:43:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-10-26 19:43:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-10-26 19:43:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-10-26 19:43:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-10-26 19:43:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-10-26 19:43:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-10-26 19:43:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-10-26 19:43:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-10-26 19:43:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-10-26 19:43:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-10-26 19:43:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-10-26 19:43:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-10-26 19:43:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-10-26 19:43:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 19:43:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-10-26 19:43:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-10-26 19:43:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-10-26 19:43:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-10-26 19:43:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-10-26 19:43:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-10-26 19:43:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-10-26 19:43:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-10-26 19:43:22,280 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-10-26 19:43:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-10-26 19:43:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-10-26 19:43:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2018-10-26 19:43:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2018-10-26 19:43:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2018-10-26 19:43:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2018-10-26 19:43:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2018-10-26 19:43:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2018-10-26 19:43:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2018-10-26 19:43:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2018-10-26 19:43:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2018-10-26 19:43:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2018-10-26 19:43:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2018-10-26 19:43:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2018-10-26 19:43:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2018-10-26 19:43:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2018-10-26 19:43:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2018-10-26 19:43:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2018-10-26 19:43:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2018-10-26 19:43:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2018-10-26 19:43:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2018-10-26 19:43:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2018-10-26 19:43:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2018-10-26 19:43:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2018-10-26 19:43:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2018-10-26 19:43:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2018-10-26 19:43:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2018-10-26 19:43:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2018-10-26 19:43:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2018-10-26 19:43:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2018-10-26 19:43:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2018-10-26 19:43:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2018-10-26 19:43:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2018-10-26 19:43:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2018-10-26 19:43:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2018-10-26 19:43:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2018-10-26 19:43:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2018-10-26 19:43:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2018-10-26 19:43:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2018-10-26 19:43:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2018-10-26 19:43:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2018-10-26 19:43:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2018-10-26 19:43:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2018-10-26 19:43:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2018-10-26 19:43:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2018-10-26 19:43:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2018-10-26 19:43:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2018-10-26 19:43:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2018-10-26 19:43:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2018-10-26 19:43:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2018-10-26 19:43:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2018-10-26 19:43:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2018-10-26 19:43:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2018-10-26 19:43:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-26 19:43:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 19:43:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:43:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:43:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-26 19:43:23,567 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:43:23,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:43:23 BoogieIcfgContainer [2018-10-26 19:43:23,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:43:23,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:43:23,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:43:23,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:43:23,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:43:21" (1/3) ... [2018-10-26 19:43:23,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2044111e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:43:23, skipping insertion in model container [2018-10-26 19:43:23,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:43:22" (2/3) ... [2018-10-26 19:43:23,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2044111e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:43:23, skipping insertion in model container [2018-10-26 19:43:23,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:43:23" (3/3) ... [2018-10-26 19:43:23,577 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_false-unreach-call_false-valid-memcleanup.i [2018-10-26 19:43:23,586 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:43:23,593 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:43:23,607 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:43:23,636 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:43:23,636 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:43:23,637 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:43:23,637 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:43:23,637 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:43:23,638 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:43:23,638 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:43:23,638 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:43:23,638 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:43:23,658 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2018-10-26 19:43:23,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 19:43:23,663 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:23,664 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:23,666 INFO L424 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:23,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:23,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1693146187, now seen corresponding path program 1 times [2018-10-26 19:43:23,673 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:23,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:23,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:23,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:23,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:23,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:23,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:23,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:43:23,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:43:23,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:43:23,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:43:23,835 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 2 states. [2018-10-26 19:43:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:23,883 INFO L93 Difference]: Finished difference Result 379 states and 550 transitions. [2018-10-26 19:43:23,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:43:23,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 19:43:23,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:23,895 INFO L225 Difference]: With dead ends: 379 [2018-10-26 19:43:23,896 INFO L226 Difference]: Without dead ends: 175 [2018-10-26 19:43:23,901 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:43:23,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-10-26 19:43:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-10-26 19:43:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-10-26 19:43:23,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 196 transitions. [2018-10-26 19:43:23,951 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 196 transitions. Word has length 18 [2018-10-26 19:43:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:23,952 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 196 transitions. [2018-10-26 19:43:23,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:43:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 196 transitions. [2018-10-26 19:43:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-26 19:43:23,955 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:23,955 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:23,955 INFO L424 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:23,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:23,956 INFO L82 PathProgramCache]: Analyzing trace with hash -644551470, now seen corresponding path program 1 times [2018-10-26 19:43:23,956 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:23,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:23,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:23,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:23,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:24,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:24,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 19:43:24,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 19:43:24,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 19:43:24,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:43:24,243 INFO L87 Difference]: Start difference. First operand 175 states and 196 transitions. Second operand 5 states. [2018-10-26 19:43:24,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:24,512 INFO L93 Difference]: Finished difference Result 177 states and 197 transitions. [2018-10-26 19:43:24,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 19:43:24,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-10-26 19:43:24,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:24,515 INFO L225 Difference]: With dead ends: 177 [2018-10-26 19:43:24,516 INFO L226 Difference]: Without dead ends: 174 [2018-10-26 19:43:24,516 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:43:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-10-26 19:43:24,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-10-26 19:43:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-10-26 19:43:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2018-10-26 19:43:24,534 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 47 [2018-10-26 19:43:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:24,536 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2018-10-26 19:43:24,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 19:43:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2018-10-26 19:43:24,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-26 19:43:24,539 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:24,539 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:24,539 INFO L424 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:24,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:24,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1421693890, now seen corresponding path program 1 times [2018-10-26 19:43:24,539 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:24,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:24,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:24,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:24,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:25,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:25,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-26 19:43:25,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-26 19:43:25,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-26 19:43:25,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2018-10-26 19:43:25,169 INFO L87 Difference]: Start difference. First operand 174 states and 194 transitions. Second operand 16 states. [2018-10-26 19:43:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:28,506 INFO L93 Difference]: Finished difference Result 313 states and 355 transitions. [2018-10-26 19:43:28,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-26 19:43:28,507 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 51 [2018-10-26 19:43:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:28,509 INFO L225 Difference]: With dead ends: 313 [2018-10-26 19:43:28,509 INFO L226 Difference]: Without dead ends: 307 [2018-10-26 19:43:28,510 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2018-10-26 19:43:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-10-26 19:43:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 272. [2018-10-26 19:43:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-10-26 19:43:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 310 transitions. [2018-10-26 19:43:28,538 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 310 transitions. Word has length 51 [2018-10-26 19:43:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:28,539 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 310 transitions. [2018-10-26 19:43:28,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-26 19:43:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 310 transitions. [2018-10-26 19:43:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-26 19:43:28,540 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:28,540 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:28,540 INFO L424 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:28,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:28,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2046697110, now seen corresponding path program 1 times [2018-10-26 19:43:28,540 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:28,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:28,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:28,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:28,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:29,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:29,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-10-26 19:43:29,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-26 19:43:29,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-26 19:43:29,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2018-10-26 19:43:29,743 INFO L87 Difference]: Start difference. First operand 272 states and 310 transitions. Second operand 24 states. [2018-10-26 19:43:30,898 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2018-10-26 19:43:32,522 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2018-10-26 19:43:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:35,738 INFO L93 Difference]: Finished difference Result 468 states and 546 transitions. [2018-10-26 19:43:35,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-26 19:43:35,739 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 55 [2018-10-26 19:43:35,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:35,742 INFO L225 Difference]: With dead ends: 468 [2018-10-26 19:43:35,742 INFO L226 Difference]: Without dead ends: 465 [2018-10-26 19:43:35,744 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=414, Invalid=2778, Unknown=0, NotChecked=0, Total=3192 [2018-10-26 19:43:35,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2018-10-26 19:43:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 426. [2018-10-26 19:43:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-10-26 19:43:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 499 transitions. [2018-10-26 19:43:35,788 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 499 transitions. Word has length 55 [2018-10-26 19:43:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:35,789 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 499 transitions. [2018-10-26 19:43:35,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-26 19:43:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 499 transitions. [2018-10-26 19:43:35,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-26 19:43:35,792 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:35,792 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:35,792 INFO L424 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:35,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:35,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1677198005, now seen corresponding path program 1 times [2018-10-26 19:43:35,793 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:35,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:35,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:35,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:35,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:36,326 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2018-10-26 19:43:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:36,894 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:36,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-10-26 19:43:36,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-26 19:43:36,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-26 19:43:36,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2018-10-26 19:43:36,896 INFO L87 Difference]: Start difference. First operand 426 states and 499 transitions. Second operand 25 states. [2018-10-26 19:43:37,567 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2018-10-26 19:43:38,792 WARN L179 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2018-10-26 19:43:40,594 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-26 19:43:41,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:41,849 INFO L93 Difference]: Finished difference Result 467 states and 544 transitions. [2018-10-26 19:43:41,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-10-26 19:43:41,850 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 60 [2018-10-26 19:43:41,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:41,851 INFO L225 Difference]: With dead ends: 467 [2018-10-26 19:43:41,851 INFO L226 Difference]: Without dead ends: 464 [2018-10-26 19:43:41,852 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=456, Invalid=3084, Unknown=0, NotChecked=0, Total=3540 [2018-10-26 19:43:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-10-26 19:43:41,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 426. [2018-10-26 19:43:41,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-10-26 19:43:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 498 transitions. [2018-10-26 19:43:41,897 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 498 transitions. Word has length 60 [2018-10-26 19:43:41,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:41,899 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 498 transitions. [2018-10-26 19:43:41,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-26 19:43:41,900 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 498 transitions. [2018-10-26 19:43:41,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-26 19:43:41,901 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:41,901 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:41,901 INFO L424 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:41,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:41,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1109576695, now seen corresponding path program 1 times [2018-10-26 19:43:41,901 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:41,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:41,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:41,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:41,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:42,306 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-26 19:43:42,713 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-10-26 19:43:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:43,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:43,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-10-26 19:43:43,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-26 19:43:43,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-26 19:43:43,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2018-10-26 19:43:43,572 INFO L87 Difference]: Start difference. First operand 426 states and 498 transitions. Second operand 26 states. [2018-10-26 19:43:44,118 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2018-10-26 19:43:44,295 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2018-10-26 19:43:44,541 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 101 [2018-10-26 19:43:45,778 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2018-10-26 19:43:45,969 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2018-10-26 19:43:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:48,471 INFO L93 Difference]: Finished difference Result 468 states and 544 transitions. [2018-10-26 19:43:48,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-10-26 19:43:48,472 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 64 [2018-10-26 19:43:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:48,474 INFO L225 Difference]: With dead ends: 468 [2018-10-26 19:43:48,474 INFO L226 Difference]: Without dead ends: 465 [2018-10-26 19:43:48,476 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=459, Invalid=3447, Unknown=0, NotChecked=0, Total=3906 [2018-10-26 19:43:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2018-10-26 19:43:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 426. [2018-10-26 19:43:48,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-10-26 19:43:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 497 transitions. [2018-10-26 19:43:48,513 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 497 transitions. Word has length 64 [2018-10-26 19:43:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:48,515 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 497 transitions. [2018-10-26 19:43:48,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-26 19:43:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 497 transitions. [2018-10-26 19:43:48,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-26 19:43:48,516 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:48,516 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:48,516 INFO L424 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:48,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:48,517 INFO L82 PathProgramCache]: Analyzing trace with hash -910856093, now seen corresponding path program 1 times [2018-10-26 19:43:48,517 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:48,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:48,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:48,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:48,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:48,846 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-26 19:43:49,294 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2018-10-26 19:43:49,476 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2018-10-26 19:43:49,705 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2018-10-26 19:43:50,064 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-10-26 19:43:50,214 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2018-10-26 19:43:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:50,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:50,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-10-26 19:43:50,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-26 19:43:50,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-26 19:43:50,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2018-10-26 19:43:50,773 INFO L87 Difference]: Start difference. First operand 426 states and 497 transitions. Second operand 26 states. [2018-10-26 19:43:51,636 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2018-10-26 19:43:55,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:43:55,793 INFO L93 Difference]: Finished difference Result 460 states and 533 transitions. [2018-10-26 19:43:55,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-10-26 19:43:55,793 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 68 [2018-10-26 19:43:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:43:55,795 INFO L225 Difference]: With dead ends: 460 [2018-10-26 19:43:55,796 INFO L226 Difference]: Without dead ends: 457 [2018-10-26 19:43:55,797 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=367, Invalid=2713, Unknown=0, NotChecked=0, Total=3080 [2018-10-26 19:43:55,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-10-26 19:43:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 426. [2018-10-26 19:43:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-10-26 19:43:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 496 transitions. [2018-10-26 19:43:55,832 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 496 transitions. Word has length 68 [2018-10-26 19:43:55,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:43:55,832 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 496 transitions. [2018-10-26 19:43:55,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-26 19:43:55,832 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 496 transitions. [2018-10-26 19:43:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-26 19:43:55,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:43:55,835 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:43:55,835 INFO L424 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:43:55,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:43:55,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1665356717, now seen corresponding path program 1 times [2018-10-26 19:43:55,836 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:43:55,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:43:55,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:55,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:43:55,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:43:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:43:56,102 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-26 19:43:56,422 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-10-26 19:43:56,590 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-26 19:43:57,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:43:57,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:43:57,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-10-26 19:43:57,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-26 19:43:57,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-26 19:43:57,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2018-10-26 19:43:57,517 INFO L87 Difference]: Start difference. First operand 426 states and 496 transitions. Second operand 26 states. [2018-10-26 19:43:59,166 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 73 [2018-10-26 19:43:59,309 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2018-10-26 19:44:01,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:44:01,676 INFO L93 Difference]: Finished difference Result 464 states and 538 transitions. [2018-10-26 19:44:01,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-10-26 19:44:01,677 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 72 [2018-10-26 19:44:01,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:44:01,678 INFO L225 Difference]: With dead ends: 464 [2018-10-26 19:44:01,678 INFO L226 Difference]: Without dead ends: 461 [2018-10-26 19:44:01,680 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=525, Invalid=3507, Unknown=0, NotChecked=0, Total=4032 [2018-10-26 19:44:01,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2018-10-26 19:44:01,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 426. [2018-10-26 19:44:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-10-26 19:44:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 495 transitions. [2018-10-26 19:44:01,711 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 495 transitions. Word has length 72 [2018-10-26 19:44:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:01,712 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 495 transitions. [2018-10-26 19:44:01,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-10-26 19:44:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 495 transitions. [2018-10-26 19:44:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-26 19:44:01,713 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:01,713 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:44:01,713 INFO L424 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:01,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:01,716 INFO L82 PathProgramCache]: Analyzing trace with hash 288402649, now seen corresponding path program 1 times [2018-10-26 19:44:01,716 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:01,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:01,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:01,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:01,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:44:02,014 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-26 19:44:02,374 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-10-26 19:44:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:44:03,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:44:03,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-10-26 19:44:03,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-26 19:44:03,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-26 19:44:03,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2018-10-26 19:44:03,583 INFO L87 Difference]: Start difference. First operand 426 states and 495 transitions. Second operand 25 states. [2018-10-26 19:44:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:44:07,379 INFO L93 Difference]: Finished difference Result 458 states and 529 transitions. [2018-10-26 19:44:07,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-10-26 19:44:07,380 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 76 [2018-10-26 19:44:07,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:44:07,382 INFO L225 Difference]: With dead ends: 458 [2018-10-26 19:44:07,382 INFO L226 Difference]: Without dead ends: 455 [2018-10-26 19:44:07,383 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=382, Invalid=2698, Unknown=0, NotChecked=0, Total=3080 [2018-10-26 19:44:07,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-10-26 19:44:07,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 426. [2018-10-26 19:44:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-10-26 19:44:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 494 transitions. [2018-10-26 19:44:07,421 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 494 transitions. Word has length 76 [2018-10-26 19:44:07,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:44:07,423 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 494 transitions. [2018-10-26 19:44:07,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-26 19:44:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 494 transitions. [2018-10-26 19:44:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-26 19:44:07,424 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:44:07,424 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:44:07,424 INFO L424 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:44:07,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:44:07,425 INFO L82 PathProgramCache]: Analyzing trace with hash 122461125, now seen corresponding path program 1 times [2018-10-26 19:44:07,425 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:44:07,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:44:07,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:07,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:44:07,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:44:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:44:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:44:07,507 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:44:07,543 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 21 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# [2018-10-26 19:44:07,544 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 26 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# [2018-10-26 19:44:07,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:44:07 BoogieIcfgContainer [2018-10-26 19:44:07,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:44:07,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:44:07,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:44:07,580 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:44:07,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:43:23" (3/4) ... [2018-10-26 19:44:07,582 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 19:44:07,592 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 26 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# [2018-10-26 19:44:07,596 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 21 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# [2018-10-26 19:44:07,668 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9d1bd056-8d79-4a35-8242-581aeb88ff7c/bin-2019/uautomizer/witness.graphml [2018-10-26 19:44:07,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:44:07,670 INFO L168 Benchmark]: Toolchain (without parser) took 46310.16 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 470.3 MB). Free memory was 954.3 MB in the beginning and 1.2 GB in the end (delta: -267.5 MB). Peak memory consumption was 202.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:44:07,671 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:44:07,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 954.3 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:44:07,671 INFO L168 Benchmark]: Boogie Preprocessor took 114.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:44:07,672 INFO L168 Benchmark]: RCFGBuilder took 1377.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. [2018-10-26 19:44:07,672 INFO L168 Benchmark]: TraceAbstraction took 44010.20 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 313.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -200.7 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2018-10-26 19:44:07,673 INFO L168 Benchmark]: Witness Printer took 89.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:44:07,679 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 714.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 954.3 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 114.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1377.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 44010.20 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 313.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -200.7 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. * Witness Printer took 89.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 21 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 26 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 26 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 21 could not be translated for associated CType STRUCT~~list_head?next~*list_head?prev~*list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 829]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L839] FCALL struct list_head gl_list = { &(gl_list), &(gl_list) }; VAL [\old(gl_list)=null, \old(gl_list)=null, gl_list={27:0}] [L938] CALL gl_read() VAL [gl_list={27:0}] [L898] CALL gl_insert(__VERIFIER_nondet_int()) VAL [\old(value)=1, gl_list={27:0}] [L888] EXPR, FCALL malloc(sizeof *node) VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, value=1] [L888] struct node *node = malloc(sizeof *node); VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, node={23:0}, value=1] [L889] COND FALSE !(!node) VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, node={23:0}, value=1] [L891] FCALL node->value = value VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, node={23:0}, value=1] [L892] CALL list_add(&node->linkage, &gl_list) VAL [gl_list={27:0}, head={27:0}, new={23:4}] [L879] EXPR, FCALL head->next VAL [gl_list={27:0}, head={27:0}, head={27:0}, head->next={27:0}, new={23:4}, new={23:4}] [L879] CALL __list_add(new, head, head->next) VAL [gl_list={27:0}, new={23:4}, next={27:0}, prev={27:0}] [L867] FCALL next->prev = new VAL [gl_list={27:0}, new={23:4}, new={23:4}, next={27:0}, next={27:0}, prev={27:0}, prev={27:0}] [L868] FCALL new->next = next VAL [gl_list={27:0}, new={23:4}, new={23:4}, next={27:0}, next={27:0}, prev={27:0}, prev={27:0}] [L869] FCALL new->prev = prev VAL [gl_list={27:0}, new={23:4}, new={23:4}, next={27:0}, next={27:0}, prev={27:0}, prev={27:0}] [L870] RET, FCALL prev->next = new VAL [gl_list={27:0}, new={23:4}, new={23:4}, next={27:0}, next={27:0}, prev={27:0}, prev={27:0}] [L879] RET __list_add(new, head, head->next) VAL [gl_list={27:0}, head={27:0}, head={27:0}, head->next={27:0}, new={23:4}, new={23:4}] [L892] list_add(&node->linkage, &gl_list) VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, node={23:0}, value=1] [L893] FCALL (&node->nested)->next = (&node->nested) VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, node={23:0}, value=1] [L893] FCALL (&node->nested)->next = (&node->nested) VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, node={23:0}, value=1] [L893] COND FALSE, RET !(0) VAL [\old(value)=1, gl_list={27:0}, malloc(sizeof *node)={23:0}, node={23:0}, value=1] [L898] gl_insert(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=1, gl_list={27:0}] [L900] COND FALSE, RET !(__VERIFIER_nondet_int()) [L938] gl_read() VAL [gl_list={27:0}] [L939] CALL inspect(&gl_list) VAL [gl_list={27:0}, head={27:0}] [L842] COND FALSE !(!(head)) VAL [gl_list={27:0}, head={27:0}, head={27:0}] [L842] COND FALSE !(0) VAL [gl_list={27:0}, head={27:0}, head={27:0}] [L843] EXPR, FCALL head->next VAL [gl_list={27:0}, head={27:0}, head={27:0}, head->next={23:4}] [L843] COND FALSE !(!(head->next != head)) [L843] COND FALSE !(0) VAL [gl_list={27:0}, head={27:0}, head={27:0}] [L844] EXPR, FCALL head->prev VAL [gl_list={27:0}, head={27:0}, head={27:0}, head->prev={23:4}] [L844] COND FALSE !(!(head->prev != head)) [L844] COND FALSE !(0) VAL [gl_list={27:0}, head={27:0}, head={27:0}] [L845] EXPR, FCALL head->prev VAL [gl_list={27:0}, head={27:0}, head={27:0}, head->prev={23:4}] [L845] head = head->prev [L846] COND FALSE !(!(head)) VAL [gl_list={27:0}, head={27:0}, head={23:4}] [L846] COND FALSE !(0) VAL [gl_list={27:0}, head={27:0}, head={23:4}] [L847] EXPR, FCALL head->next VAL [gl_list={27:0}, head={23:4}, head={27:0}, head->next={27:0}] [L847] COND FALSE !(!(head->next != head)) [L847] COND FALSE !(0) VAL [gl_list={27:0}, head={23:4}, head={27:0}] [L848] EXPR, FCALL head->prev VAL [gl_list={27:0}, head={23:4}, head={27:0}, head->prev={27:0}] [L848] COND FALSE !(!(head->prev != head)) [L848] COND FALSE !(0) VAL [gl_list={27:0}, head={27:0}, head={23:4}] [L849] const struct node *node = ((struct node *)((char *)(head)-(unsigned long)(&((struct node *)0)->linkage))); VAL [gl_list={27:0}, head={27:0}, head={23:4}, node={23:0}] [L850] COND FALSE !(!(node)) VAL [gl_list={27:0}, head={23:4}, head={27:0}, node={23:0}] [L850] COND FALSE !(0) VAL [gl_list={27:0}, head={23:4}, head={27:0}, node={23:0}] [L851] EXPR, FCALL node->nested.next VAL [gl_list={27:0}, head={27:0}, head={23:4}, node={23:0}, node->nested.next={23:12}] [L851] COND FALSE !(!(node->nested.next == &node->nested)) [L851] COND FALSE !(0) VAL [gl_list={27:0}, head={27:0}, head={23:4}, node={23:0}] [L852] EXPR, FCALL node->nested.prev VAL [gl_list={27:0}, head={23:4}, head={27:0}, node={23:0}, node->nested.prev={25:24}] [L852] COND TRUE !(node->nested.prev == &node->nested) [L852] CALL fail() VAL [gl_list={27:0}] [L829] __VERIFIER_error() VAL [gl_list={27:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 202 locations, 1 error locations. UNSAFE Result, 43.9s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 32.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1352 SDtfs, 7513 SDslu, 3009 SDs, 0 SdLazy, 24350 SolverSat, 1894 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 66 SyntacticMatches, 14 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4391 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=426occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 246 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 591 NumberOfCodeBlocks, 591 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 502 ConstructedInterpolants, 0 QuantifiedInterpolants, 986671 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...