./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-properties/splice-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-properties/splice-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb2202e8adc36cf09139287c61f8b63b857ea10d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-properties/splice-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb2202e8adc36cf09139287c61f8b63b857ea10d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:42:24,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:42:24,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:42:24,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:42:24,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:42:24,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:42:24,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:42:24,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:42:24,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:42:24,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:42:24,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:42:24,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:42:24,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:42:24,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:42:24,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:42:24,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:42:24,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:42:24,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:42:24,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:42:24,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:42:24,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:42:24,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:42:24,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:42:24,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:42:24,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:42:24,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:42:24,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:42:24,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:42:24,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:42:24,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:42:24,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:42:24,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:42:24,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:42:24,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:42:24,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:42:24,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:42:24,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:42:24,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:42:24,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:42:24,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:42:24,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:42:24,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:42:24,560 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:42:24,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:42:24,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:42:24,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:42:24,567 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:42:24,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:42:24,568 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:42:24,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:42:24,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:42:24,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:42:24,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:42:24,571 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:42:24,572 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:42:24,572 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:42:24,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:42:24,572 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:42:24,573 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:42:24,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:42:24,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:42:24,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:42:24,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:42:24,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:42:24,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:42:24,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:42:24,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:42:24,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:42:24,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:42:24,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> bb2202e8adc36cf09139287c61f8b63b857ea10d [2019-11-28 02:42:24,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:42:24,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:42:24,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:42:24,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:42:24,884 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:42:24,885 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-2.i [2019-11-28 02:42:24,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040c35420/d0abd3115b7d41188d2bd62058c39d7a/FLAG1c84f878b [2019-11-28 02:42:25,498 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:42:25,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/splice-2.i [2019-11-28 02:42:25,522 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040c35420/d0abd3115b7d41188d2bd62058c39d7a/FLAG1c84f878b [2019-11-28 02:42:25,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/040c35420/d0abd3115b7d41188d2bd62058c39d7a [2019-11-28 02:42:25,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:42:25,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:42:25,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:42:25,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:42:25,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:42:25,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:25" (1/1) ... [2019-11-28 02:42:25,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2436fed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:25, skipping insertion in model container [2019-11-28 02:42:25,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:25" (1/1) ... [2019-11-28 02:42:25,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:42:25,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:42:26,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:42:26,502 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:42:26,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:42:26,651 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:42:26,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26 WrapperNode [2019-11-28 02:42:26,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:42:26,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:42:26,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:42:26,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:42:26,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... [2019-11-28 02:42:26,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... [2019-11-28 02:42:26,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... [2019-11-28 02:42:26,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... [2019-11-28 02:42:26,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... [2019-11-28 02:42:26,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... [2019-11-28 02:42:26,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... [2019-11-28 02:42:26,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:42:26,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:42:26,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:42:26,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:42:26,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:42:26,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:42:26,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:42:26,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:42:26,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:42:26,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:42:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:42:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:42:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-28 02:42:26,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:42:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:42:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:42:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:42:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:42:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:42:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:42:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:42:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:42:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:42:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:42:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:42:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:42:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:42:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:42:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:42:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:42:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:42:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:42:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:42:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:42:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:42:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:42:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:42:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:42:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:42:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:42:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:42:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:42:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:42:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:42:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:42:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:42:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:42:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:42:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:42:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:42:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:42:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:42:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:42:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:42:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:42:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:42:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:42:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:42:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:42:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:42:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:42:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:42:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:42:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:42:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:42:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:42:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:42:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:42:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:42:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:42:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:42:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:42:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:42:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:42:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:42:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:42:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:42:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:42:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:42:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:42:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:42:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:42:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:42:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:42:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:42:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:42:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:42:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:42:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:42:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:42:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:42:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:42:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:42:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:42:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:42:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:42:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:42:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:42:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:42:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:42:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:42:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:42:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:42:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:42:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:42:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:42:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:42:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:42:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:42:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:42:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:42:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:42:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:42:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:42:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:42:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:42:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:42:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:42:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:42:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:42:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:42:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:42:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:42:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-28 02:42:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:42:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:42:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:42:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:42:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:42:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:42:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:42:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:42:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:42:27,213 INFO L712 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-28 02:42:27,502 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:42:27,503 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 02:42:27,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:27 BoogieIcfgContainer [2019-11-28 02:42:27,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:42:27,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:42:27,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:42:27,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:42:27,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:42:25" (1/3) ... [2019-11-28 02:42:27,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198dff06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:42:27, skipping insertion in model container [2019-11-28 02:42:27,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:26" (2/3) ... [2019-11-28 02:42:27,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198dff06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:42:27, skipping insertion in model container [2019-11-28 02:42:27,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:27" (3/3) ... [2019-11-28 02:42:27,514 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-11-28 02:42:27,525 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:42:27,534 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2019-11-28 02:42:27,548 INFO L249 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2019-11-28 02:42:27,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:42:27,569 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:42:27,570 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:42:27,570 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:42:27,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:42:27,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:42:27,571 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:42:27,571 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:42:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-11-28 02:42:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:42:27,598 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:42:27,599 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:42:27,599 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:42:27,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:42:27,605 INFO L82 PathProgramCache]: Analyzing trace with hash 132221508, now seen corresponding path program 1 times [2019-11-28 02:42:27,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:42:27,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757996631] [2019-11-28 02:42:27,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:42:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:42:27,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757996631] [2019-11-28 02:42:27,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:42:27,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:42:27,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064298162] [2019-11-28 02:42:27,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:42:27,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:42:27,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:42:27,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:42:27,820 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-11-28 02:42:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:42:28,060 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-28 02:42:28,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:42:28,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 02:42:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:42:28,074 INFO L225 Difference]: With dead ends: 84 [2019-11-28 02:42:28,075 INFO L226 Difference]: Without dead ends: 77 [2019-11-28 02:42:28,077 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:42:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-11-28 02:42:28,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-11-28 02:42:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-28 02:42:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2019-11-28 02:42:28,125 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 10 [2019-11-28 02:42:28,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:42:28,126 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2019-11-28 02:42:28,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:42:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2019-11-28 02:42:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:42:28,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:42:28,127 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:42:28,128 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:42:28,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:42:28,129 INFO L82 PathProgramCache]: Analyzing trace with hash -196136195, now seen corresponding path program 1 times [2019-11-28 02:42:28,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:42:28,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131406205] [2019-11-28 02:42:28,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:42:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:42:28,228 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131406205] [2019-11-28 02:42:28,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:42:28,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:42:28,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728791100] [2019-11-28 02:42:28,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:42:28,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:42:28,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:42:28,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:42:28,233 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand 5 states. [2019-11-28 02:42:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:42:28,530 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-28 02:42:28,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:42:28,531 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 02:42:28,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:42:28,535 INFO L225 Difference]: With dead ends: 84 [2019-11-28 02:42:28,535 INFO L226 Difference]: Without dead ends: 84 [2019-11-28 02:42:28,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:42:28,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-28 02:42:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2019-11-28 02:42:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-28 02:42:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2019-11-28 02:42:28,563 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 11 [2019-11-28 02:42:28,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:42:28,564 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2019-11-28 02:42:28,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:42:28,564 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2019-11-28 02:42:28,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:42:28,566 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:42:28,566 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:42:28,567 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:42:28,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:42:28,567 INFO L82 PathProgramCache]: Analyzing trace with hash -196136194, now seen corresponding path program 1 times [2019-11-28 02:42:28,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:42:28,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417977872] [2019-11-28 02:42:28,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:42:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:42:28,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417977872] [2019-11-28 02:42:28,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:42:28,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:42:28,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607994734] [2019-11-28 02:42:28,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:42:28,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:42:28,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:42:28,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:42:28,703 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand 5 states. [2019-11-28 02:42:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:42:28,964 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2019-11-28 02:42:28,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:42:28,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 02:42:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:42:28,966 INFO L225 Difference]: With dead ends: 92 [2019-11-28 02:42:28,966 INFO L226 Difference]: Without dead ends: 92 [2019-11-28 02:42:28,967 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:42:28,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-28 02:42:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 85. [2019-11-28 02:42:28,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-28 02:42:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2019-11-28 02:42:28,976 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 11 [2019-11-28 02:42:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:42:28,977 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2019-11-28 02:42:28,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:42:28,977 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2019-11-28 02:42:28,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:42:28,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:42:28,979 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:42:28,979 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:42:28,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:42:28,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1937825696, now seen corresponding path program 1 times [2019-11-28 02:42:28,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:42:28,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441942971] [2019-11-28 02:42:28,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:42:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:42:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:42:29,095 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:42:29,095 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:42:29,109 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 02:42:29,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:42:29 BoogieIcfgContainer [2019-11-28 02:42:29,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:42:29,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:42:29,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:42:29,123 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:42:29,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:27" (3/4) ... [2019-11-28 02:42:29,127 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:42:29,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:42:29,130 INFO L168 Benchmark]: Toolchain (without parser) took 3327.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 957.7 MB in the beginning and 948.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 165.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:29,131 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:42:29,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:29,133 INFO L168 Benchmark]: Boogie Preprocessor took 78.68 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:29,133 INFO L168 Benchmark]: RCFGBuilder took 772.13 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:29,134 INFO L168 Benchmark]: TraceAbstraction took 1616.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.0 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:29,135 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 1.2 GB. Free memory is still 948.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:42:29,139 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 850.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.68 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 772.13 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: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1616.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 948.0 MB in the end (delta: 120.4 MB). Peak memory consumption was 120.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.69 ms. Allocated memory is still 1.2 GB. Free memory is still 948.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 520]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 520. Possible FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L523] COND FALSE !(a == 0) VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] EXPR a->h VAL [a={-1:0}, a->h=3, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={-1:0}, flag=1, malloc(sizeof(struct node))={-1:0}, p={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 100 locations, 30 error locations. Result: UNSAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 230 SDslu, 58 SDs, 0 SdLazy, 386 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 1142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:42:31,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:42:31,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:42:31,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:42:31,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:42:31,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:42:31,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:42:31,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:42:31,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:42:31,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:42:31,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:42:31,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:42:31,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:42:31,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:42:31,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:42:31,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:42:31,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:42:31,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:42:31,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:42:31,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:42:31,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:42:31,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:42:31,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:42:31,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:42:31,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:42:31,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:42:31,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:42:31,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:42:31,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:42:31,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:42:31,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:42:31,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:42:31,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:42:31,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:42:31,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:42:31,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:42:31,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:42:31,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:42:31,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:42:31,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:42:31,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:42:31,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-28 02:42:31,218 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:42:31,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:42:31,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:42:31,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:42:31,224 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:42:31,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:42:31,227 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:42:31,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:42:31,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:42:31,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:42:31,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:42:31,228 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:42:31,228 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:42:31,230 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:42:31,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:42:31,230 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:42:31,230 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 02:42:31,231 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 02:42:31,231 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:42:31,231 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:42:31,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:42:31,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:42:31,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:42:31,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:42:31,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:42:31,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:42:31,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:42:31,234 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 02:42:31,234 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 02:42:31,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 02:42:31,235 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> bb2202e8adc36cf09139287c61f8b63b857ea10d [2019-11-28 02:42:31,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:42:31,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:42:31,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:42:31,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:42:31,630 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:42:31,632 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-2.i [2019-11-28 02:42:31,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2957e9dc7/f66c227983be43ddbf01b56f80b92f77/FLAG1f1a09d65 [2019-11-28 02:42:32,203 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:42:32,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/splice-2.i [2019-11-28 02:42:32,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2957e9dc7/f66c227983be43ddbf01b56f80b92f77/FLAG1f1a09d65 [2019-11-28 02:42:32,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2957e9dc7/f66c227983be43ddbf01b56f80b92f77 [2019-11-28 02:42:32,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:42:32,508 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:42:32,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:42:32,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:42:32,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:42:32,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:32" (1/1) ... [2019-11-28 02:42:32,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b1cb90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:32, skipping insertion in model container [2019-11-28 02:42:32,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:42:32" (1/1) ... [2019-11-28 02:42:32,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:42:32,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:42:33,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:42:33,030 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:42:33,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:42:33,179 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:42:33,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33 WrapperNode [2019-11-28 02:42:33,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:42:33,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:42:33,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:42:33,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:42:33,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... [2019-11-28 02:42:33,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... [2019-11-28 02:42:33,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... [2019-11-28 02:42:33,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... [2019-11-28 02:42:33,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... [2019-11-28 02:42:33,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... [2019-11-28 02:42:33,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... [2019-11-28 02:42:33,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:42:33,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:42:33,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:42:33,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:42:33,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:42:33,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:42:33,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:42:33,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:42:33,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:42:33,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:42:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:42:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:42:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:42:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-28 02:42:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:42:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:42:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:42:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:42:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:42:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:42:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:42:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:42:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:42:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:42:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:42:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:42:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:42:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:42:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:42:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:42:33,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:42:33,331 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:42:33,331 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:42:33,331 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:42:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:42:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:42:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:42:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:42:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:42:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:42:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:42:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:42:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:42:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:42:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:42:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:42:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:42:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:42:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:42:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:42:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:42:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:42:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:42:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:42:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:42:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:42:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:42:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:42:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:42:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:42:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:42:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:42:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:42:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:42:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:42:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:42:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:42:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:42:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:42:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:42:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:42:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:42:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:42:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:42:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:42:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:42:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:42:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:42:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:42:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:42:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:42:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:42:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:42:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:42:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:42:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:42:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:42:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:42:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:42:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-28 02:42:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:42:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:42:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 02:42:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:42:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:42:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 02:42:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:42:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:42:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-28 02:42:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:42:33,761 INFO L712 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-28 02:42:34,134 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:42:34,134 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 02:42:34,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:34 BoogieIcfgContainer [2019-11-28 02:42:34,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:42:34,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:42:34,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:42:34,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:42:34,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:42:32" (1/3) ... [2019-11-28 02:42:34,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5816ecce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:42:34, skipping insertion in model container [2019-11-28 02:42:34,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:42:33" (2/3) ... [2019-11-28 02:42:34,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5816ecce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:42:34, skipping insertion in model container [2019-11-28 02:42:34,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:34" (3/3) ... [2019-11-28 02:42:34,145 INFO L109 eAbstractionObserver]: Analyzing ICFG splice-2.i [2019-11-28 02:42:34,156 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:42:34,166 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 30 error locations. [2019-11-28 02:42:34,180 INFO L249 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2019-11-28 02:42:34,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:42:34,204 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:42:34,204 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:42:34,204 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:42:34,205 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:42:34,205 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:42:34,205 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:42:34,205 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:42:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-11-28 02:42:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:42:34,241 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:42:34,242 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:42:34,243 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:42:34,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:42:34,250 INFO L82 PathProgramCache]: Analyzing trace with hash 958148326, now seen corresponding path program 1 times [2019-11-28 02:42:34,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:42:34,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595046244] [2019-11-28 02:42:34,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 02:42:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:34,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 02:42:34,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:42:34,503 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 02:42:34,503 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:42:34,515 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:42:34,515 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:42:34,516 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-28 02:42:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:42:34,535 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:42:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:42:34,556 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595046244] [2019-11-28 02:42:34,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:42:34,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 02:42:34,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421751696] [2019-11-28 02:42:34,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:42:34,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:42:34,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:42:34,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:42:34,583 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 4 states. [2019-11-28 02:42:34,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:42:34,974 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2019-11-28 02:42:34,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:42:34,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 02:42:34,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:42:34,987 INFO L225 Difference]: With dead ends: 90 [2019-11-28 02:42:34,987 INFO L226 Difference]: Without dead ends: 82 [2019-11-28 02:42:34,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:42:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-28 02:42:35,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2019-11-28 02:42:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-28 02:42:35,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2019-11-28 02:42:35,046 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 10 [2019-11-28 02:42:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:42:35,047 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2019-11-28 02:42:35,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:42:35,047 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2019-11-28 02:42:35,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 02:42:35,048 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:42:35,048 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:42:35,251 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 02:42:35,252 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:42:35,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:42:35,252 INFO L82 PathProgramCache]: Analyzing trace with hash 958148327, now seen corresponding path program 1 times [2019-11-28 02:42:35,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:42:35,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715015736] [2019-11-28 02:42:35,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 02:42:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:42:35,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 02:42:35,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 02:42:35,387 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-28 02:42:35,388 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 02:42:35,401 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 02:42:35,401 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 02:42:35,401 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-28 02:42:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:42:35,432 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 02:42:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:42:35,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715015736] [2019-11-28 02:42:35,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:42:35,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-28 02:42:35,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966298195] [2019-11-28 02:42:35,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 02:42:35,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 02:42:35,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 02:42:35,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:42:35,549 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand 6 states. [2019-11-28 02:42:36,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:42:36,091 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2019-11-28 02:42:36,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:42:36,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 02:42:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:42:36,094 INFO L225 Difference]: With dead ends: 92 [2019-11-28 02:42:36,094 INFO L226 Difference]: Without dead ends: 92 [2019-11-28 02:42:36,096 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-28 02:42:36,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-28 02:42:36,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2019-11-28 02:42:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-28 02:42:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2019-11-28 02:42:36,107 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 10 [2019-11-28 02:42:36,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:42:36,108 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2019-11-28 02:42:36,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 02:42:36,109 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2019-11-28 02:42:36,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 02:42:36,109 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:42:36,110 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:42:36,329 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 02:42:36,330 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr29ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr28ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:42:36,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:42:36,331 INFO L82 PathProgramCache]: Analyzing trace with hash -155811508, now seen corresponding path program 1 times [2019-11-28 02:42:36,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 02:42:36,334 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719999046] [2019-11-28 02:42:36,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 02:42:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:42:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:42:36,541 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 02:42:36,545 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:42:36,746 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 02:42:36,757 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-28 02:42:36,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:42:36 BoogieIcfgContainer [2019-11-28 02:42:36,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:42:36,780 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:42:36,780 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:42:36,781 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:42:36,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:42:34" (3/4) ... [2019-11-28 02:42:36,793 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 02:42:36,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:42:36,796 INFO L168 Benchmark]: Toolchain (without parser) took 4287.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 961.7 MB in the beginning and 871.0 MB in the end (delta: 90.7 MB). Peak memory consumption was 222.3 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:36,797 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:42:36,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:36,801 INFO L168 Benchmark]: Boogie Preprocessor took 85.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:42:36,801 INFO L168 Benchmark]: RCFGBuilder took 867.74 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:36,802 INFO L168 Benchmark]: TraceAbstraction took 2642.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 871.0 MB in the end (delta: 176.9 MB). Peak memory consumption was 176.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:42:36,804 INFO L168 Benchmark]: Witness Printer took 14.27 ms. Allocated memory is still 1.2 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:42:36,811 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 671.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 867.74 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2642.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 871.0 MB in the end (delta: 176.9 MB). Peak memory consumption was 176.9 MB. Max. memory is 11.5 GB. * Witness Printer took 14.27 ms. Allocated memory is still 1.2 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 520]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 520. Possible FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L523] COND FALSE !(a == 0) VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}] [L524] List t; [L525] List l1; [L526] List l2; [L527] List b; [L528] List u; [L529] List p = a; VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L530] COND FALSE !(__VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L544] EXPR a->h VAL [a={1:0}, a->h=3, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] [L544] COND TRUE a->h == 3 [L544] return 0; VAL [\result=0, a={1:0}, flag=1, malloc(sizeof(struct node))={1:0}, p={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 105 locations, 30 error locations. Result: UNSAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 336 SDslu, 76 SDs, 0 SdLazy, 191 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1368 SizeOfPredicates, 8 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...