./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 906a4fb5 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-ext-properties/simple-ext.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8dfe6e301265e265404ce5be2c9f54235040b69e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:25:17,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:25:17,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:25:17,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:25:17,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:25:17,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:25:17,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:25:17,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:25:17,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:25:17,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:25:17,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:25:17,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:25:17,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:25:17,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:25:17,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:25:17,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:25:17,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:25:17,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:25:17,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:25:17,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:25:17,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:25:17,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:25:17,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:25:17,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:25:17,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:25:17,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:25:17,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:25:17,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:25:17,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:25:17,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:25:17,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:25:17,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:25:17,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:25:17,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:25:17,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:25:17,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:25:17,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:25:17,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:25:17,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:25:17,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:25:17,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:25:17,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-19 18:25:17,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:25:17,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:25:17,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:25:17,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:25:17,803 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:25:17,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:25:17,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:25:17,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:25:17,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:25:17,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:25:17,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:25:17,806 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:25:17,806 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:25:17,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:25:17,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:25:17,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:25:17,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:25:17,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:25:17,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:25:17,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:25:17,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:25:17,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:25:17,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:25:17,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:25:17,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:25:17,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:25:17,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:25:17,810 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-memcleanup) ) 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 -> 8dfe6e301265e265404ce5be2c9f54235040b69e [2020-10-19 18:25:18,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:25:18,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:25:18,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:25:18,142 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:25:18,142 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:25:18,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/simple-ext.i [2020-10-19 18:25:18,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3404c98/4cd9166102bb48f8af4309b6056d7f98/FLAGe769f026d [2020-10-19 18:25:18,746 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:25:18,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/simple-ext.i [2020-10-19 18:25:18,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3404c98/4cd9166102bb48f8af4309b6056d7f98/FLAGe769f026d [2020-10-19 18:25:19,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3404c98/4cd9166102bb48f8af4309b6056d7f98 [2020-10-19 18:25:19,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:25:19,038 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:25:19,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:25:19,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:25:19,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:25:19,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db40efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19, skipping insertion in model container [2020-10-19 18:25:19,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:25:19,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:25:19,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:25:19,511 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:25:19,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:25:19,606 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:25:19,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19 WrapperNode [2020-10-19 18:25:19,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:25:19,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:25:19,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:25:19,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:25:19,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (1/1) ... [2020-10-19 18:25:19,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:25:19,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:25:19,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:25:19,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:25:19,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (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 [2020-10-19 18:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:25:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-19 18:25:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:25:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:25:19,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:25:19,740 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:25:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:25:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:25:19,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:25:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:25:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:25:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:25:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:25:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:25:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:25:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:25:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:25:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:25:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:25:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:25:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:25:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:25:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:25:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:25:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:25:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:25:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:25:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:25:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:25:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:25:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:25:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:25:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:25:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:25:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:25:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:25:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:25:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:25:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:25:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:25:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:25:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:25:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:25:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:25:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:25:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:25:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:25:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:25:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:25:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:25:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:25:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:25:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:25:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:25:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:25:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:25:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:25:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:25:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:25:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:25:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:25:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:25:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:25:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:25:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:25:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:25:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:25:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:25:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:25:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:25:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:25:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-19 18:25:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:25:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:25:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:25:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:25:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:25:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:25:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:25:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:25:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:25:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:25:20,095 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-19 18:25:20,324 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:25:20,325 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-19 18:25:20,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:25:20 BoogieIcfgContainer [2020-10-19 18:25:20,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:25:20,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:25:20,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:25:20,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:25:20,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:25:19" (1/3) ... [2020-10-19 18:25:20,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a9ee88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:25:20, skipping insertion in model container [2020-10-19 18:25:20,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:19" (2/3) ... [2020-10-19 18:25:20,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a9ee88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:25:20, skipping insertion in model container [2020-10-19 18:25:20,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:25:20" (3/3) ... [2020-10-19 18:25:20,335 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-10-19 18:25:20,346 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:25:20,354 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-10-19 18:25:20,367 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-10-19 18:25:20,386 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:25:20,386 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:25:20,386 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:25:20,386 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:25:20,387 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:25:20,387 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:25:20,387 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:25:20,387 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:25:20,405 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-10-19 18:25:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:25:20,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:20,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:20,415 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:25:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:20,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1274349716, now seen corresponding path program 1 times [2020-10-19 18:25:20,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:20,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30610602] [2020-10-19 18:25:20,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:20,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:20,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:20,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30610602] [2020-10-19 18:25:20,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:20,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:25:20,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459104862] [2020-10-19 18:25:20,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:25:20,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:20,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:25:20,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:25:20,681 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-10-19 18:25:20,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:20,834 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-10-19 18:25:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:25:20,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-19 18:25:20,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:20,845 INFO L225 Difference]: With dead ends: 65 [2020-10-19 18:25:20,845 INFO L226 Difference]: Without dead ends: 58 [2020-10-19 18:25:20,847 INFO L677 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 [2020-10-19 18:25:20,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-19 18:25:20,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-10-19 18:25:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-19 18:25:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2020-10-19 18:25:20,887 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 10 [2020-10-19 18:25:20,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:20,888 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2020-10-19 18:25:20,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:25:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2020-10-19 18:25:20,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:25:20,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:20,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:20,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:25:20,890 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:25:20,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash -585349595, now seen corresponding path program 1 times [2020-10-19 18:25:20,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:20,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900311423] [2020-10-19 18:25:20,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:20,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:21,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900311423] [2020-10-19 18:25:21,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:21,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:25:21,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143337542] [2020-10-19 18:25:21,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:25:21,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:21,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:25:21,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:25:21,006 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 5 states. [2020-10-19 18:25:21,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:21,195 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2020-10-19 18:25:21,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:25:21,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-19 18:25:21,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:21,197 INFO L225 Difference]: With dead ends: 76 [2020-10-19 18:25:21,197 INFO L226 Difference]: Without dead ends: 76 [2020-10-19 18:25:21,198 INFO L677 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 [2020-10-19 18:25:21,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-19 18:25:21,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 62. [2020-10-19 18:25:21,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-19 18:25:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2020-10-19 18:25:21,208 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 12 [2020-10-19 18:25:21,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:21,209 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2020-10-19 18:25:21,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:25:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2020-10-19 18:25:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:25:21,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:21,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:21,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:25:21,211 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:25:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:21,212 INFO L82 PathProgramCache]: Analyzing trace with hash -585349594, now seen corresponding path program 1 times [2020-10-19 18:25:21,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:21,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807277385] [2020-10-19 18:25:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:21,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:21,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:21,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807277385] [2020-10-19 18:25:21,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:21,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:25:21,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105883231] [2020-10-19 18:25:21,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:25:21,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:21,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:25:21,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:25:21,313 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand 5 states. [2020-10-19 18:25:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:21,519 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2020-10-19 18:25:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:25:21,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-19 18:25:21,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:21,523 INFO L225 Difference]: With dead ends: 82 [2020-10-19 18:25:21,523 INFO L226 Difference]: Without dead ends: 82 [2020-10-19 18:25:21,524 INFO L677 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 [2020-10-19 18:25:21,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-19 18:25:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 71. [2020-10-19 18:25:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-19 18:25:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2020-10-19 18:25:21,534 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 12 [2020-10-19 18:25:21,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:21,535 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2020-10-19 18:25:21,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:25:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2020-10-19 18:25:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-19 18:25:21,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:21,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:21,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:25:21,538 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:25:21,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:21,538 INFO L82 PathProgramCache]: Analyzing trace with hash -937802477, now seen corresponding path program 1 times [2020-10-19 18:25:21,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:21,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184908600] [2020-10-19 18:25:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:21,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:21,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184908600] [2020-10-19 18:25:21,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:21,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:25:21,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15730778] [2020-10-19 18:25:21,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:25:21,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:21,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:25:21,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:25:21,630 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand 5 states. [2020-10-19 18:25:21,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:21,778 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2020-10-19 18:25:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:25:21,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-19 18:25:21,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:21,780 INFO L225 Difference]: With dead ends: 78 [2020-10-19 18:25:21,780 INFO L226 Difference]: Without dead ends: 78 [2020-10-19 18:25:21,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-19 18:25:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2020-10-19 18:25:21,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-19 18:25:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2020-10-19 18:25:21,789 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 19 [2020-10-19 18:25:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:21,789 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2020-10-19 18:25:21,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:25:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2020-10-19 18:25:21,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:25:21,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:21,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:21,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:25:21,792 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr19ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-19 18:25:21,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:21,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1031989692, now seen corresponding path program 1 times [2020-10-19 18:25:21,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:21,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115353414] [2020-10-19 18:25:21,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:25:21,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:25:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:25:21,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:25:21,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:25:21,862 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:25:21,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:25:21,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:25:21 BoogieIcfgContainer [2020-10-19 18:25:21,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:25:21,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:25:21,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:25:21,898 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:25:21,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:25:20" (3/4) ... [2020-10-19 18:25:21,901 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:25:21,954 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:25:21,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:25:21,957 INFO L168 Benchmark]: Toolchain (without parser) took 2924.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 954.6 MB in the beginning and 885.3 MB in the end (delta: 69.3 MB). Peak memory consumption was 191.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:25:21,958 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:25:21,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:25:21,959 INFO L168 Benchmark]: Boogie Preprocessor took 72.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:25:21,960 INFO L168 Benchmark]: RCFGBuilder took 646.41 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: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:25:21,961 INFO L168 Benchmark]: TraceAbstraction took 1568.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 892.1 MB in the end (delta: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:25:21,962 INFO L168 Benchmark]: Witness Printer took 57.80 ms. Allocated memory is still 1.2 GB. Free memory was 892.1 MB in the beginning and 885.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:25:21,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 568.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 646.41 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: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1568.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 892.1 MB in the end (delta: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.80 ms. Allocated memory is still 1.2 GB. Free memory was 892.1 MB in the beginning and 885.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L533] COND FALSE !(a == 0) VAL [a={-1:0}, malloc(sizeof(struct node))={-1:0}] [L534] List t; [L535] List p = a; [L536] int i = 0; VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 30 && __VERIFIER_nondet_int()=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L546] p->n = 0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L547] p = a [L548] i = 0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L549] COND TRUE p!=0 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}] [L550] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=0] [L550] COND TRUE p->h != 1 [L551] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "simple-ext.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 84 locations, 21 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 281 SDslu, 74 SDs, 0 SdLazy, 401 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 4 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 3101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...